Rear Fingerprint Enrollment

Bug: 297083009
Test: atest RFPSIconTouchViewModelTest FingerprintEnrollEnrollingViewModelTest FingerprintManagerInteractorTest
Change-Id: Icc072e7d7815070087ccb50ea5937c386b06fb11

res/layout/fingerprint_v2_rfps_enroll_enrolling.xml

@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2023 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<com.google.android.setupdesign.GlifLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    style="?attr/fingerprint_layout_theme"
+    android:id="@+id/setup_wizard_layout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    >
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    style="@style/SudContentFrame"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:clipChildren="false"
+    android:clipToPadding="false"
+    android:orientation="vertical">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:gravity="center"
+        android:orientation="vertical">
+
+        <com.google.android.setupdesign.view.FillContentLayout
+            android:layout_width="@dimen/fingerprint_progress_bar_max_size"
+            android:layout_height="@dimen/fingerprint_progress_bar_max_size"
+            android:layout_marginVertical="24dp"
+            android:paddingTop="0dp"
+            android:paddingBottom="0dp">
+
+            <com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.widget.RFPSProgressBar
+                xmlns:android="http://schemas.android.com/apk/res/android"
+                android:id="@+id/fingerprint_progress_bar"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:background="@drawable/fp_illustration"
+                android:minHeight="@dimen/fingerprint_progress_bar_min_size"
+                android:progress="0" />
+
+        </com.google.android.setupdesign.view.FillContentLayout>
+
+        <TextView
+            android:id="@+id/text"
+            style="@style/TextAppearance.ErrorText"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal|bottom"
+            android:accessibilityLiveRegion="polite"
+            android:gravity="center"
+            android:visibility="invisible" />
+
+    </LinearLayout>
+
+</LinearLayout>
+
+</com.google.android.setupdesign.GlifLayout>

src/com/android/settings/biometrics/fingerprint2/conversion/Util.kt

@@ -16,14 +16,61 @@
 
 package com.android.settings.biometrics.fingerprint2.conversion
 
+import android.hardware.biometrics.BiometricFingerprintConstants.FINGERPRINT_ERROR_CANCELED
+import android.hardware.biometrics.BiometricFingerprintConstants.FINGERPRINT_ERROR_UNABLE_TO_PROCESS
 import android.hardware.fingerprint.FingerprintManager
+import com.android.settings.R
 import com.android.settings.biometrics.fingerprint2.shared.model.EnrollReason
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollState
 
-class Util
-
-fun EnrollReason.toOriginalReason(): Int {
-  return when (this) {
-    EnrollReason.EnrollEnrolling -> FingerprintManager.ENROLL_ENROLL
-    EnrollReason.FindSensor -> FingerprintManager.ENROLL_FIND_SENSOR
+object Util {
+  fun EnrollReason.toOriginalReason(): Int {
+    return when (this) {
+      EnrollReason.EnrollEnrolling -> FingerprintManager.ENROLL_ENROLL
+      EnrollReason.FindSensor -> FingerprintManager.ENROLL_FIND_SENSOR
+    }
   }
+
+  fun Int.toEnrollError(isSetupWizard: Boolean): FingerEnrollState.EnrollError {
+    val errTitle =
+      when (this) {
+        FingerprintManager.FINGERPRINT_ERROR_TIMEOUT ->
+          R.string.security_settings_fingerprint_enroll_error_dialog_title
+        FingerprintManager.FINGERPRINT_ERROR_BAD_CALIBRATION ->
+          R.string.security_settings_fingerprint_bad_calibration_title
+        else -> R.string.security_settings_fingerprint_enroll_error_unable_to_process_dialog_title
+      }
+    val errString =
+      if (isSetupWizard) {
+        when (this) {
+          FingerprintManager.FINGERPRINT_ERROR_TIMEOUT ->
+            R.string.security_settings_fingerprint_enroll_error_dialog_title
+          FingerprintManager.FINGERPRINT_ERROR_BAD_CALIBRATION ->
+            R.string.security_settings_fingerprint_bad_calibration_title
+          else -> R.string.security_settings_fingerprint_enroll_error_unable_to_process_dialog_title
+        }
+      } else {
+        when (this) {
+          // This message happens when the underlying crypto layer
+          // decides to revoke the enrollment auth token
+          FingerprintManager.FINGERPRINT_ERROR_TIMEOUT ->
+            R.string.security_settings_fingerprint_enroll_error_timeout_dialog_message
+          FingerprintManager.FINGERPRINT_ERROR_BAD_CALIBRATION ->
+            R.string.security_settings_fingerprint_bad_calibration
+          FingerprintManager.FINGERPRINT_ERROR_UNABLE_TO_PROCESS ->
+            R.string.security_settings_fingerprint_enroll_error_unable_to_process_message
+          // There's nothing specific to tell the user about. Ask them to try again.
+          else -> R.string.security_settings_fingerprint_enroll_error_generic_dialog_message
+        }
+      }
+
+    return FingerEnrollState.EnrollError(
+      errTitle,
+      errString,
+      this == FINGERPRINT_ERROR_UNABLE_TO_PROCESS,
+      this == FINGERPRINT_ERROR_CANCELED,
+    )
+  }
+
 }
+

src/com/android/settings/biometrics/fingerprint2/domain/interactor/FingerprintManagerInteractorImpl.kt

@@ -24,12 +24,16 @@ import android.hardware.fingerprint.FingerprintManager.RemovalCallback
 import android.os.CancellationSignal
 import android.util.Log
 import com.android.settings.biometrics.GatekeeperPasswordProvider
-import com.android.settings.biometrics.fingerprint2.conversion.toOriginalReason
+import com.android.settings.biometrics.fingerprint2.conversion.Util.toEnrollError
+import com.android.settings.biometrics.fingerprint2.conversion.Util.toOriginalReason
+import com.android.settings.biometrics.fingerprint2.shared.data.repository.PressToAuthProvider
 import com.android.settings.biometrics.fingerprint2.shared.domain.interactor.FingerprintManagerInteractor
 import com.android.settings.biometrics.fingerprint2.shared.model.EnrollReason
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollStateViewModel
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptViewModel
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintFlow
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollState
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintData
+import com.android.settings.biometrics.fingerprint2.shared.model.SetupWizard
 import com.android.settings.password.ChooseLockSettingsHelper
 import com.android.systemui.biometrics.shared.model.toFingerprintSensor
 import kotlin.coroutines.resume
@@ -38,9 +42,12 @@ import kotlinx.coroutines.CancellableContinuation
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.channels.awaitClose
 import kotlinx.coroutines.channels.onFailure
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.callbackFlow
 import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.suspendCancellableCoroutine
 import kotlinx.coroutines.withContext
 
@@ -51,7 +58,8 @@ class FingerprintManagerInteractorImpl(
   private val backgroundDispatcher: CoroutineDispatcher,
   private val fingerprintManager: FingerprintManager,
   private val gatekeeperPasswordProvider: GatekeeperPasswordProvider,
-  private val pressToAuthProvider: () -> Boolean,
+  private val pressToAuthProvider: PressToAuthProvider,
+  private val fingerprintFlow: FingerprintFlow,
 ) : FingerprintManagerInteractor {
 
   private val maxFingerprints =
@@ -60,6 +68,8 @@ class FingerprintManagerInteractorImpl(
     )
   private val applicationContext = applicationContext.applicationContext
 
+  private val enrollRequestOutstanding = MutableStateFlow(false)
+
   override suspend fun generateChallenge(gateKeeperPasswordHandle: Long): Pair<Long, ByteArray> =
     suspendCoroutine {
       val callback = GenerateChallengeCallback { _, userId, challenge ->
@@ -75,11 +85,11 @@ class FingerprintManagerInteractorImpl(
       fingerprintManager.generateChallenge(applicationContext.userId, callback)
     }
 
-  override val enrolledFingerprints: Flow<List<FingerprintViewModel>> = flow {
+  override val enrolledFingerprints: Flow<List<FingerprintData>> = flow {
     emit(
       fingerprintManager
         .getEnrolledFingerprints(applicationContext.userId)
-        .map { (FingerprintViewModel(it.name.toString(), it.biometricId, it.deviceId)) }
+        .map { (FingerprintData(it.name.toString(), it.biometricId, it.deviceId)) }
         .toList()
     )
   }
@@ -103,28 +113,51 @@ class FingerprintManagerInteractorImpl(
   override suspend fun enroll(
     hardwareAuthToken: ByteArray?,
     enrollReason: EnrollReason,
-  ): Flow<FingerEnrollStateViewModel> = callbackFlow {
+  ): Flow<FingerEnrollState> = callbackFlow {
+    // TODO (b/308456120) Improve this logic
+    if (enrollRequestOutstanding.value) {
+      Log.d(TAG, "Outstanding enroll request, waiting 150ms")
+      delay(150)
+      if (enrollRequestOutstanding.value) {
+        Log.e(TAG, "Request still present, continuing")
+      }
+    }
+
+    enrollRequestOutstanding.update { true }
+
     var streamEnded = false
+    var totalSteps: Int? = null
     val enrollmentCallback =
       object : FingerprintManager.EnrollmentCallback() {
         override fun onEnrollmentProgress(remaining: Int) {
-          trySend(FingerEnrollStateViewModel.EnrollProgress(remaining)).onFailure { error ->
+          // This is sort of an implementation detail, but unfortunately the API isn't
+          // very expressive. If anything we should look at changing the FingerprintManager API.
+          if (totalSteps == null) {
+            totalSteps = remaining + 1
+          }
+
+          trySend(FingerEnrollState.EnrollProgress(remaining, totalSteps!!)).onFailure {
+            error ->
             Log.d(TAG, "onEnrollmentProgress($remaining) failed to send, due to $error")
           }
+
           if (remaining == 0) {
             streamEnded = true
+            enrollRequestOutstanding.update { false }
           }
         }
 
         override fun onEnrollmentHelp(helpMsgId: Int, helpString: CharSequence?) {
-          trySend(FingerEnrollStateViewModel.EnrollHelp(helpMsgId, helpString.toString()))
+          trySend(FingerEnrollState.EnrollHelp(helpMsgId, helpString.toString()))
             .onFailure { error -> Log.d(TAG, "onEnrollmentHelp failed to send, due to $error") }
         }
 
         override fun onEnrollmentError(errMsgId: Int, errString: CharSequence?) {
-          trySend(FingerEnrollStateViewModel.EnrollError(errMsgId, errString.toString()))
+          trySend(errMsgId.toEnrollError(fingerprintFlow == SetupWizard))
             .onFailure { error -> Log.d(TAG, "onEnrollmentError failed to send, due to $error") }
+          Log.d(TAG, "onEnrollmentError($errMsgId)")
           streamEnded = true
+          enrollRequestOutstanding.update { false }
         }
       }
 
@@ -140,12 +173,13 @@ class FingerprintManagerInteractorImpl(
       // If the stream has not been ended, and the user has stopped collecting the flow
       // before it was over, send cancel.
       if (!streamEnded) {
+        Log.e(TAG, "Cancel is sent from settings for enroll()")
         cancellationSignal.cancel()
       }
     }
   }
 
-  override suspend fun removeFingerprint(fp: FingerprintViewModel): Boolean = suspendCoroutine {
+  override suspend fun removeFingerprint(fp: FingerprintData): Boolean = suspendCoroutine {
     val callback =
       object : RemovalCallback() {
         override fun onRemovalError(
@@ -170,7 +204,7 @@ class FingerprintManagerInteractorImpl(
     )
   }
 
-  override suspend fun renameFingerprint(fp: FingerprintViewModel, newName: String) {
+  override suspend fun renameFingerprint(fp: FingerprintData, newName: String) {
     withContext(backgroundDispatcher) {
       fingerprintManager.rename(fp.fingerId, applicationContext.userId, newName)
     }
@@ -181,11 +215,11 @@ class FingerprintManagerInteractorImpl(
   }
 
   override suspend fun pressToAuthEnabled(): Boolean = suspendCancellableCoroutine {
-    it.resume(pressToAuthProvider())
+    it.resume(pressToAuthProvider.isEnabled)
   }
 
-  override suspend fun authenticate(): FingerprintAuthAttemptViewModel =
-    suspendCancellableCoroutine { c: CancellableContinuation<FingerprintAuthAttemptViewModel> ->
+  override suspend fun authenticate(): FingerprintAuthAttemptModel =
+    suspendCancellableCoroutine { c: CancellableContinuation<FingerprintAuthAttemptModel> ->
       val authenticationCallback =
         object : FingerprintManager.AuthenticationCallback() {
 
@@ -195,7 +229,7 @@ class FingerprintManagerInteractorImpl(
               Log.d(TAG, "framework sent down onAuthError after finish")
               return
             }
-            c.resume(FingerprintAuthAttemptViewModel.Error(errorCode, errString.toString()))
+            c.resume(FingerprintAuthAttemptModel.Error(errorCode, errString.toString()))
           }
 
           override fun onAuthenticationSucceeded(result: FingerprintManager.AuthenticationResult) {
@@ -204,7 +238,7 @@ class FingerprintManagerInteractorImpl(
               Log.d(TAG, "framework sent down onAuthError after finish")
               return
             }
-            c.resume(FingerprintAuthAttemptViewModel.Success(result.fingerprint?.biometricId ?: -1))
+            c.resume(FingerprintAuthAttemptModel.Success(result.fingerprint?.biometricId ?: -1))
           }
         }
 

src/com/android/settings/biometrics/fingerprint2/repository/PressToAuthProviderImpl.kt

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.biometrics.fingerprint2.repository
+
+import android.content.Context
+import android.provider.Settings
+import com.android.settings.biometrics.fingerprint2.shared.data.repository.PressToAuthProvider
+
+class PressToAuthProviderImpl(val context: Context) : PressToAuthProvider {
+  override val isEnabled: Boolean
+    get() {
+      var toReturn: Int =
+        Settings.Secure.getIntForUser(
+          context.contentResolver,
+          Settings.Secure.SFPS_PERFORMANT_AUTH_ENABLED,
+          -1,
+          context.userId,
+        )
+      if (toReturn == -1) {
+        toReturn =
+          if (
+            context.resources.getBoolean(com.android.internal.R.bool.config_performantAuthDefault)
+          ) {
+            1
+          } else {
+            0
+          }
+        Settings.Secure.putIntForUser(
+          context.contentResolver,
+          Settings.Secure.SFPS_PERFORMANT_AUTH_ENABLED,
+          toReturn,
+          context.userId
+        )
+      }
+      return (toReturn == 1)
+    }
+}

src/com/android/settings/biometrics/fingerprint2/shared/data/repository/PressToAuthProvider.kt

@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.biometrics.fingerprint2.shared.data.repository
+
+/**
+ * Interface that indicates if press to auth is on or off.
+ */
+interface PressToAuthProvider {
+    /**
+     * Indicates true if the PressToAuth feature is enabled, false otherwise.
+     */
+    val isEnabled: Boolean
+}

src/com/android/settings/biometrics/fingerprint2/shared/domain/interactor/FingerprintManagerInteractor.kt

@@ -17,9 +17,9 @@
 package com.android.settings.biometrics.fingerprint2.shared.domain.interactor
 
 import com.android.settings.biometrics.fingerprint2.shared.model.EnrollReason
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptViewModel
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintViewModel
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollStateViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintData
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollState
 import com.android.systemui.biometrics.shared.model.FingerprintSensor
 import kotlinx.coroutines.flow.Flow
 
@@ -31,7 +31,7 @@ import kotlinx.coroutines.flow.Flow
  */
 interface FingerprintManagerInteractor {
   /** Returns the list of current fingerprints. */
-  val enrolledFingerprints: Flow<List<FingerprintViewModel>>
+  val enrolledFingerprints: Flow<List<FingerprintData>>
 
   /** Returns the max enrollable fingerprints, note during SUW this might be 1 */
   val maxEnrollableFingerprints: Flow<Int>
@@ -43,7 +43,7 @@ interface FingerprintManagerInteractor {
   val sensorPropertiesInternal: Flow<FingerprintSensor?>
 
   /** Runs the authenticate flow */
-  suspend fun authenticate(): FingerprintAuthAttemptViewModel
+  suspend fun authenticate(): FingerprintAuthAttemptModel
 
   /**
    * Generates a challenge with the provided [gateKeeperPasswordHandle] and on success returns a
@@ -56,22 +56,22 @@ interface FingerprintManagerInteractor {
 
   /**
    * Runs [FingerprintManager.enroll] with the [hardwareAuthToken] and [EnrollReason] for this
-   * enrollment. Returning the [FingerEnrollStateViewModel] that represents this fingerprint
+   * enrollment. Returning the [FingerEnrollState] that represents this fingerprint
    * enrollment state.
    */
   suspend fun enroll(
-    hardwareAuthToken: ByteArray?,
-    enrollReason: EnrollReason,
-  ): Flow<FingerEnrollStateViewModel>
+      hardwareAuthToken: ByteArray?,
+      enrollReason: EnrollReason,
+  ): Flow<FingerEnrollState>
 
   /**
    * Removes the given fingerprint, returning true if it was successfully removed and false
    * otherwise
    */
-  suspend fun removeFingerprint(fp: FingerprintViewModel): Boolean
+  suspend fun removeFingerprint(fp: FingerprintData): Boolean
 
   /** Renames the given fingerprint if one exists */
-  suspend fun renameFingerprint(fp: FingerprintViewModel, newName: String)
+  suspend fun renameFingerprint(fp: FingerprintData, newName: String)
 
   /** Indicates if the device has side fingerprint */
   suspend fun hasSideFps(): Boolean

src/com/android/settings/biometrics/fingerprint2/shared/model/FingerEnrollState.kt

@@ -22,19 +22,28 @@ import android.annotation.StringRes
  * Represents a fingerprint enrollment state. See [FingerprintManager.EnrollmentCallback] for more
  * information
  */
-sealed class FingerEnrollStateViewModel {
-  /** Represents enrollment step progress. */
+sealed class FingerEnrollState {
+  /**
+   * Represents an enrollment step progress.
+   *
+   * Progress is obtained by (totalStepsRequired - remainingSteps) / totalStepsRequired
+   */
   data class EnrollProgress(
     val remainingSteps: Int,
-  ) : FingerEnrollStateViewModel()
+    val totalStepsRequired: Int,
+  ) : FingerEnrollState()
+
   /** Represents that recoverable error has been encountered during enrollment. */
   data class EnrollHelp(
     @StringRes val helpMsgId: Int,
     val helpString: String,
-  ) : FingerEnrollStateViewModel()
+  ) : FingerEnrollState()
+
   /** Represents that an unrecoverable error has been encountered and the operation is complete. */
   data class EnrollError(
-    @StringRes val errMsgId: Int,
-    val errString: String,
-  ) : FingerEnrollStateViewModel()
+    @StringRes val errTitle: Int,
+    @StringRes val errString: Int,
+    val shouldRetryEnrollment: Boolean,
+    val isCancelled: Boolean,
+  ) : FingerEnrollState()
 }

src/com/android/settings/biometrics/fingerprint2/shared/model/FingerprintData.kt

@@ -16,19 +16,19 @@
 
 package com.android.settings.biometrics.fingerprint2.shared.model
 
-data class FingerprintViewModel(
+data class FingerprintData(
   val name: String,
   val fingerId: Int,
   val deviceId: Long,
 )
 
-sealed class FingerprintAuthAttemptViewModel {
+sealed class FingerprintAuthAttemptModel {
   data class Success(
     val fingerId: Int,
-  ) : FingerprintAuthAttemptViewModel()
+  ) : FingerprintAuthAttemptModel()
 
   data class Error(
     val error: Int,
     val message: String,
-  ) : FingerprintAuthAttemptViewModel()
+  ) : FingerprintAuthAttemptModel()
 }

src/com/android/settings/biometrics/fingerprint2/shared/model/FingerprintFlow.kt

@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.biometrics.fingerprint2.shared.model
+
+/**
+ * The [FingerprintFlow] for fingerprint enrollment indicates information on how the flow should behave.
+ */
+sealed class FingerprintFlow
+
+/** The default enrollment experience, typically called from Settings */
+data object Default : FingerprintFlow()
+
+/** SetupWizard/Out of box experience (OOBE) enrollment type. */
+data object SetupWizard : FingerprintFlow()
+
+/** Unicorn enrollment type */
+data object Unicorn : FingerprintFlow()
+
+/** Flow to specify settings type */
+data object Settings : FingerprintFlow()

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/activity/FingerprintEnrollmentV2Activity.kt

@@ -16,12 +16,9 @@
 
 package com.android.settings.biometrics.fingerprint2.ui.enrollment.activity
 
-import android.annotation.ColorInt
 import android.app.Activity
 import android.content.Intent
-import android.content.res.ColorStateList
 import android.content.res.Configuration
-import android.graphics.Color
 import android.hardware.fingerprint.FingerprintManager
 import android.os.Bundle
 import android.provider.Settings
@@ -35,22 +32,27 @@ import androidx.lifecycle.lifecycleScope
 import com.android.internal.widget.LockPatternUtils
 import com.android.settings.R
 import com.android.settings.SetupWizardUtils
-import com.android.settings.Utils
 import com.android.settings.Utils.SETTINGS_PACKAGE_NAME
 import com.android.settings.biometrics.BiometricEnrollBase
 import com.android.settings.biometrics.BiometricEnrollBase.CONFIRM_REQUEST
 import com.android.settings.biometrics.BiometricEnrollBase.RESULT_FINISHED
 import com.android.settings.biometrics.GatekeeperPasswordProvider
 import com.android.settings.biometrics.fingerprint2.domain.interactor.FingerprintManagerInteractorImpl
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.Default
+import com.android.settings.biometrics.fingerprint2.shared.model.SetupWizard
+import com.android.settings.biometrics.fingerprint2.repository.PressToAuthProviderImpl
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.fragment.FingerprintEnrollConfirmationV2Fragment
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.fragment.FingerprintEnrollEnrollingV2Fragment
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.fragment.FingerprintEnrollFindSensorV2Fragment
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.fragment.FingerprintEnrollIntroV2Fragment
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.fragment.RFPSEnrollFragment
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.viewmodel.RFPSViewModel
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.AccessibilityViewModel
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.BackgroundViewModel
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.Confirmation
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.Education
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.Enrollment
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollEnrollingViewModel
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollFindSensorViewModel
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollNavigationViewModel
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollViewModel
@@ -65,8 +67,11 @@ import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.Orie
 import com.android.settings.password.ChooseLockGeneric
 import com.android.settings.password.ChooseLockSettingsHelper
 import com.android.settings.password.ChooseLockSettingsHelper.EXTRA_KEY_GK_PW_HANDLE
+import com.android.systemui.biometrics.shared.model.FingerprintSensorType
+import com.google.android.setupcompat.util.WizardManagerHelper
 import com.google.android.setupdesign.util.ThemeHelper
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.filterNotNull
 import kotlinx.coroutines.launch
 
@@ -77,6 +82,7 @@ private const val TAG = "FingerprintEnrollmentV2Activity"
  * children fragments.
  */
 class FingerprintEnrollmentV2Activity : FragmentActivity() {
+  private lateinit var fingerprintEnrollEnrollingViewModel: FingerprintEnrollEnrollingViewModel
   private lateinit var navigationViewModel: FingerprintEnrollNavigationViewModel
   private lateinit var gatekeeperViewModel: FingerprintGatekeeperViewModel
   private lateinit var fingerprintEnrollViewModel: FingerprintEnrollViewModel
@@ -84,6 +90,7 @@ class FingerprintEnrollmentV2Activity : FragmentActivity() {
   private lateinit var foldStateViewModel: FoldStateViewModel
   private lateinit var orientationStateViewModel: OrientationStateViewModel
   private lateinit var fingerprintScrollViewModel: FingerprintScrollViewModel
+  private lateinit var backgroundViewModel: BackgroundViewModel
   private val coroutineDispatcher = Dispatchers.Default
 
   /** Result listener for ChooseLock activity flow. */
@@ -101,23 +108,22 @@ class FingerprintEnrollmentV2Activity : FragmentActivity() {
     }
   }
 
-  override fun onAttachedToWindow() {
-    window.statusBarColor = getBackgroundColor()
-    super.onAttachedToWindow()
+  override fun onStop() {
+    super.onStop()
+    if (!isChangingConfigurations) {
+      backgroundViewModel.wentToBackground()
+    }
   }
 
+  override fun onResume() {
+    super.onResume()
+    backgroundViewModel.inForeground()
+  }
   override fun onConfigurationChanged(newConfig: Configuration) {
     super.onConfigurationChanged(newConfig)
     foldStateViewModel.onConfigurationChange(newConfig)
   }
 
-  @ColorInt
-  private fun getBackgroundColor(): Int {
-    val stateList: ColorStateList? =
-      Utils.getColorAttr(applicationContext, android.R.attr.windowBackground)
-    return stateList?.defaultColor ?: Color.TRANSPARENT
-  }
-
   private fun onConfirmDevice(resultCode: Int, data: Intent?) {
     val wasSuccessful = resultCode == RESULT_FINISHED || resultCode == Activity.RESULT_OK
     val gateKeeperPasswordHandle = data?.getExtra(EXTRA_KEY_GK_PW_HANDLE) as Long?
@@ -137,39 +143,28 @@ class FingerprintEnrollmentV2Activity : FragmentActivity() {
 
     val context = applicationContext
     val fingerprintManager = context.getSystemService(FINGERPRINT_SERVICE) as FingerprintManager
+    val isAnySuw = WizardManagerHelper.isAnySetupWizard(intent)
+    val enrollType =
+      if (isAnySuw) {
+        SetupWizard
+      } else {
+        Default
+      }
+
+    backgroundViewModel =
+      ViewModelProvider(this, BackgroundViewModel.BackgroundViewModelFactory())[
+        BackgroundViewModel::class.java]
+
 
     val interactor =
       FingerprintManagerInteractorImpl(
         context,
         backgroundDispatcher,
         fingerprintManager,
-        GatekeeperPasswordProvider(LockPatternUtils(context))
-      ) {
-        var toReturn: Int =
-          Settings.Secure.getIntForUser(
-            context.contentResolver,
-            Settings.Secure.SFPS_PERFORMANT_AUTH_ENABLED,
-            -1,
-            context.userId,
-          )
-        if (toReturn == -1) {
-          toReturn =
-            if (
-              context.resources.getBoolean(com.android.internal.R.bool.config_performantAuthDefault)
-            ) {
-              1
-            } else {
-              0
-            }
-          Settings.Secure.putIntForUser(
-            context.contentResolver,
-            Settings.Secure.SFPS_PERFORMANT_AUTH_ENABLED,
-            toReturn,
-            context.userId
-          )
-        }
-        toReturn == 1
-      }
+        GatekeeperPasswordProvider(LockPatternUtils(context)),
+        PressToAuthProviderImpl(context),
+        enrollType,
+      )
 
     var challenge: Long? = intent.getExtra(BiometricEnrollBase.EXTRA_KEY_CHALLENGE) as Long?
     val token = intent.getByteArrayExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN)
@@ -191,7 +186,8 @@ class FingerprintEnrollmentV2Activity : FragmentActivity() {
           backgroundDispatcher,
           interactor,
           gatekeeperViewModel,
-          gatekeeperInfo is GatekeeperInfo.GatekeeperPasswordInfo, /* canSkipConfirm */
+          gatekeeperInfo is GatekeeperInfo.GatekeeperPasswordInfo,
+          enrollType,
         )
       )[FingerprintEnrollNavigationViewModel::class.java]
 
@@ -207,7 +203,8 @@ class FingerprintEnrollmentV2Activity : FragmentActivity() {
         this,
         FingerprintEnrollViewModel.FingerprintEnrollViewModelFactory(
           interactor,
-          backgroundDispatcher
+          gatekeeperViewModel,
+          navigationViewModel,
         )
       )[FingerprintEnrollViewModel::class.java]
 
@@ -230,6 +227,16 @@ class FingerprintEnrollmentV2Activity : FragmentActivity() {
       ViewModelProvider(this, OrientationStateViewModel.OrientationViewModelFactory(context))[
         OrientationStateViewModel::class.java]
 
+    // Initialize FingerprintEnrollEnrollingViewModel
+    fingerprintEnrollEnrollingViewModel =
+      ViewModelProvider(
+        this,
+        FingerprintEnrollEnrollingViewModel.FingerprintEnrollEnrollingViewModelFactory(
+          fingerprintEnrollViewModel,
+          backgroundViewModel
+        )
+      )[FingerprintEnrollEnrollingViewModel::class.java]
+
     // Initialize FingerprintEnrollFindSensorViewModel
     ViewModelProvider(
       this,
@@ -237,48 +244,65 @@ class FingerprintEnrollmentV2Activity : FragmentActivity() {
         navigationViewModel,
         fingerprintEnrollViewModel,
         gatekeeperViewModel,
+        backgroundViewModel,
         accessibilityViewModel,
         foldStateViewModel,
         orientationStateViewModel
       )
     )[FingerprintEnrollFindSensorViewModel::class.java]
 
+    // Initialize RFPS View Model
+    ViewModelProvider(
+      this,
+      RFPSViewModel.RFPSViewModelFactory(fingerprintEnrollEnrollingViewModel)
+    )[RFPSViewModel::class.java]
+
     lifecycleScope.launch {
-      navigationViewModel.navigationViewModel.filterNotNull().collect {
-        Log.d(TAG, "navigationStep $it")
-        val isForward = it.forward
-        val currStep = it.currStep
-        val theClass: Class<Fragment>? =
-          when (currStep) {
-            Confirmation -> FingerprintEnrollConfirmationV2Fragment::class.java as Class<Fragment>
-            Education -> FingerprintEnrollFindSensorV2Fragment::class.java as Class<Fragment>
-            Enrollment -> FingerprintEnrollEnrollingV2Fragment::class.java as Class<Fragment>
-            Intro -> FingerprintEnrollIntroV2Fragment::class.java as Class<Fragment>
-            else -> null
-          }
-
-        if (theClass != null) {
-          supportFragmentManager.fragments.onEach { fragment ->
-            supportFragmentManager.beginTransaction().remove(fragment).commit()
-          }
-          supportFragmentManager
-            .beginTransaction()
-            .setReorderingAllowed(true)
-            .add(R.id.fragment_container_view, theClass, null)
-            .commit()
-        } else {
-
-          if (currStep is Finish) {
-            if (currStep.resultCode != null) {
-              finishActivity(currStep.resultCode)
-            } else {
-              finish()
+      navigationViewModel.navigationViewModel
+        .filterNotNull()
+        .combine(fingerprintEnrollViewModel.sensorType) { nav, sensorType -> Pair(nav, sensorType) }
+        .collect { (nav, sensorType) ->
+          Log.d(TAG, "navigationStep $nav")
+          fingerprintEnrollViewModel.sensorTypeCached = sensorType
+          val isForward = nav.forward
+          val currStep = nav.currStep
+          val theClass: Class<Fragment>? =
+            when (currStep) {
+              Confirmation -> FingerprintEnrollConfirmationV2Fragment::class.java as Class<Fragment>
+              Education -> FingerprintEnrollFindSensorV2Fragment::class.java as Class<Fragment>
+              is Enrollment -> {
+                when (sensorType) {
+                  FingerprintSensorType.REAR -> RFPSEnrollFragment::class.java as Class<Fragment>
+                  else -> FingerprintEnrollEnrollingV2Fragment::class.java as Class<Fragment>
+                }
+              }
+              Intro -> FingerprintEnrollIntroV2Fragment::class.java as Class<Fragment>
+              else -> null
+            }
+
+          if (theClass != null) {
+            supportFragmentManager.fragments.onEach { fragment ->
+              supportFragmentManager.beginTransaction().remove(fragment).commit()
+            }
+
+            supportFragmentManager
+              .beginTransaction()
+              .setReorderingAllowed(true)
+              .add(R.id.fragment_container_view, theClass, null)
+              .commit()
+          } else {
+
+            if (currStep is Finish) {
+              if (currStep.resultCode != null) {
+                finishActivity(currStep.resultCode)
+              } else {
+                finish()
+              }
+            } else if (currStep == LaunchConfirmDeviceCredential) {
+              launchConfirmOrChooseLock(userId)
             }
-          } else if (currStep == LaunchConfirmDeviceCredential) {
-            launchConfirmOrChooseLock(userId)
           }
         }
-      }
     }
 
     val fromSettingsSummary =

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/fragment/FingerprintEnrollFindSensorV2Fragment.kt

@@ -30,6 +30,7 @@ import com.android.settings.R
 import com.android.settings.biometrics.fingerprint.FingerprintErrorDialog
 import com.android.settings.biometrics.fingerprint.FingerprintFindSensorAnimation
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollFindSensorViewModel
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollViewModel
 import com.android.systemui.biometrics.shared.model.FingerprintSensorType
 import com.google.android.setupcompat.template.FooterBarMixin
 import com.google.android.setupcompat.template.FooterButton
@@ -54,23 +55,8 @@ class FingerprintEnrollFindSensorV2Fragment : Fragment() {
   private var animation: FingerprintFindSensorAnimation? = null
 
   private var contentLayoutId: Int = -1
-  private lateinit var viewModel: FingerprintEnrollFindSensorViewModel
-
-  override fun onCreate(savedInstanceState: Bundle?) {
-    super.onCreate(savedInstanceState)
-    viewModel =
-      ViewModelProvider(requireActivity())[FingerprintEnrollFindSensorViewModel::class.java]
-    lifecycleScope.launch {
-      viewModel.sensorType.collect {
-        contentLayoutId =
-          when (it) {
-            FingerprintSensorType.UDFPS_OPTICAL,
-            FingerprintSensorType.UDFPS_ULTRASONIC -> R.layout.udfps_enroll_find_sensor_layout
-            FingerprintSensorType.POWER_BUTTON -> R.layout.sfps_enroll_find_sensor_layout
-            else -> R.layout.fingerprint_v2_enroll_find_sensor
-          }
-      }
-    }
+  private val viewModel: FingerprintEnrollFindSensorViewModel by lazy {
+    ViewModelProvider(requireActivity())[FingerprintEnrollFindSensorViewModel::class.java]
   }
 
   override fun onCreateView(
@@ -78,6 +64,18 @@ class FingerprintEnrollFindSensorV2Fragment : Fragment() {
     container: ViewGroup?,
     savedInstanceState: Bundle?
   ): View? {
+
+    val sensorType =
+      ViewModelProvider(requireActivity())[FingerprintEnrollViewModel::class.java].sensorTypeCached
+
+    contentLayoutId =
+      when (sensorType) {
+        FingerprintSensorType.UDFPS_OPTICAL,
+        FingerprintSensorType.UDFPS_ULTRASONIC -> R.layout.udfps_enroll_find_sensor_layout
+        FingerprintSensorType.POWER_BUTTON -> R.layout.sfps_enroll_find_sensor_layout
+        else -> R.layout.fingerprint_v2_enroll_find_sensor
+      }
+
     return inflater.inflate(contentLayoutId, container, false).also { it ->
       val view = it!! as GlifLayout
 
@@ -106,7 +104,8 @@ class FingerprintEnrollFindSensorV2Fragment : Fragment() {
       }
       lifecycleScope.launch {
         viewModel.showRfpsAnimation.collect {
-          animation = view.findViewById(R.id.fingerprint_sensor_location_animation)
+          animation =
+            view.findViewById(R.id.fingerprint_sensor_location_animation)
           animation!!.startAnimation()
         }
       }

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/fragment/FingerprintEnrollIntroV2Fragment.kt

@@ -36,11 +36,11 @@ import androidx.fragment.app.Fragment
 import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.lifecycleScope
 import com.android.settings.R
+import com.android.settings.biometrics.fingerprint2.shared.model.Unicorn
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollNavigationViewModel
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollViewModel
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintGatekeeperViewModel
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintScrollViewModel
-import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.Unicorn
 import com.android.systemui.biometrics.shared.model.FingerprintSensorType
 import com.google.android.setupcompat.template.FooterBarMixin
 import com.google.android.setupcompat.template.FooterButton
@@ -120,7 +120,7 @@ class FingerprintEnrollIntroV2Fragment() : Fragment(R.layout.fingerprint_v2_enro
 
       viewLifecycleOwner.lifecycleScope.launch {
         combine(
-            navigationViewModel.enrollType,
+            navigationViewModel.fingerprintFlow,
             fingerprintViewModel.sensorType,
           ) { enrollType, sensorType ->
             Pair(enrollType, sensorType)

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/modules/README.md

@@ -0,0 +1,26 @@
+# Module enrollment
+
+### Fingerprint Settings Enrollment Modules
+
+This directory is responsible for containing the enrollment modules, each enrollment module is
+responsible for the actual enrolling portion of FingerprintEnrollment.
+The modules should be split out into udfps, rfps, and sfps.
+
+[comment]: <>  This file structure print out has been generated with the tree command.
+
+```
+├── enrolling
+│   └── rfps
+│       ├── data
+│       ├── domain
+│       │   └── RFPSInteractor.kt
+│       ├── README.md
+│       └── ui
+│           ├── fragment
+│           │   └── RFPSEnrollFragment.kt
+│           ├── viewmodel
+│           │   └── RFPSViewModel.kt
+│           └── widget
+│               └── RFPSProgressIndicator.kt
+└── README.md
+```

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/modules/enrolling/rfps/ui/fragment/RFPSEnrollFragment.kt

@@ -0,0 +1,252 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.fragment
+
+import android.graphics.Color
+import android.os.Bundle
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.MotionEvent
+import android.view.View
+import android.view.ViewGroup
+import android.view.animation.AnimationUtils
+import android.view.animation.Interpolator
+import android.widget.TextView
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.repeatOnLifecycle
+import com.android.settings.R
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollState
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.viewmodel.RFPSIconTouchViewModel
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.viewmodel.RFPSViewModel
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.widget.FingerprintErrorDialog
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.widget.IconTouchDialog
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.widget.RFPSProgressBar
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.BackgroundViewModel
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.OrientationStateViewModel
+import com.android.settings.core.instrumentation.InstrumentedDialogFragment
+import com.google.android.setupcompat.template.FooterBarMixin
+import com.google.android.setupcompat.template.FooterButton
+import com.google.android.setupdesign.GlifLayout
+import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.flow.filter
+import kotlinx.coroutines.flow.filterNotNull
+import kotlinx.coroutines.launch
+
+private const val TAG = "RFPSEnrollFragment"
+
+/** This fragment is responsible for taking care of rear fingerprint enrollment. */
+class RFPSEnrollFragment : Fragment(R.layout.fingerprint_v2_rfps_enroll_enrolling) {
+
+  private lateinit var linearOutSlowInInterpolator: Interpolator
+  private lateinit var fastOutLinearInInterpolator: Interpolator
+  private lateinit var textView: TextView
+  private lateinit var progressBar: RFPSProgressBar
+
+  private val iconTouchViewModel: RFPSIconTouchViewModel by lazy {
+    ViewModelProvider(requireActivity())[RFPSIconTouchViewModel::class.java]
+  }
+
+  private val orientationViewModel: OrientationStateViewModel by lazy {
+    ViewModelProvider(requireActivity())[OrientationStateViewModel::class.java]
+  }
+
+  private val rfpsViewModel: RFPSViewModel by lazy {
+    ViewModelProvider(requireActivity())[RFPSViewModel::class.java]
+  }
+
+  private val backgroundViewModel: BackgroundViewModel by lazy {
+    ViewModelProvider(requireActivity())[BackgroundViewModel::class.java]
+  }
+
+  override fun onCreateView(
+    inflater: LayoutInflater,
+    container: ViewGroup?,
+    savedInstanceState: Bundle?
+  ): View? {
+    val view = super.onCreateView(inflater, container, savedInstanceState)!!
+    val fragment = this
+    val context = requireContext()
+    val glifLayout = view.requireViewById(R.id.setup_wizard_layout) as GlifLayout
+    glifLayout.setDescriptionText(R.string.security_settings_fingerprint_enroll_start_message)
+    glifLayout.setHeaderText(R.string.security_settings_fingerprint_enroll_repeat_title)
+
+    fastOutLinearInInterpolator =
+      AnimationUtils.loadInterpolator(context, android.R.interpolator.fast_out_linear_in)
+    linearOutSlowInInterpolator =
+      AnimationUtils.loadInterpolator(context, android.R.interpolator.linear_out_slow_in)
+
+    textView = view.requireViewById(R.id.text) as TextView
+    progressBar = view.requireViewById(R.id.fingerprint_progress_bar) as RFPSProgressBar
+
+    val footerBarMixin = glifLayout.getMixin(FooterBarMixin::class.java)
+    footerBarMixin.secondaryButton =
+      FooterButton.Builder(context)
+        .setText(R.string.security_settings_fingerprint_enroll_enrolling_skip)
+        .setListener { Log.e(TAG, "skip enrollment!") }
+        .setButtonType(FooterButton.ButtonType.SKIP)
+        .setTheme(com.google.android.setupdesign.R.style.SudGlifButton_Secondary)
+        .build()
+    footerBarMixin.buttonContainer.setBackgroundColor(Color.TRANSPARENT)
+
+    progressBar.setOnTouchListener { _, motionEvent ->
+      if (motionEvent.actionMasked == MotionEvent.ACTION_DOWN) {
+        iconTouchViewModel.userTouchedFingerprintIcon()
+      }
+      true
+    }
+
+    // On any orientation event, dismiss dialogs.
+    viewLifecycleOwner.lifecycleScope.launch {
+      orientationViewModel.orientation.collect { dismissDialogs() }
+    }
+
+    // Signal we are ready for enrollment.
+    rfpsViewModel.readyForEnrollment()
+
+    viewLifecycleOwner.lifecycleScope.launch {
+      repeatOnLifecycle(Lifecycle.State.RESUMED) {
+        // Icon animation  update
+        viewLifecycleOwner.lifecycleScope.launch {
+          rfpsViewModel.shouldAnimateIcon.collect { animate ->
+            progressBar.updateIconAnimation(animate)
+          }
+        }
+
+        // Flow to show a dialog.
+        viewLifecycleOwner.lifecycleScope.launch {
+          iconTouchViewModel.shouldShowDialog.collectLatest { showDialog ->
+            if (showDialog) {
+              try {
+                IconTouchDialog.showInstance(fragment)
+              } catch (exception: Exception) {
+                Log.d(TAG, "Dialog dismissed due to $exception")
+              }
+            }
+          }
+        }
+      }
+    }
+
+    // If we go to the background, then finish enrollment. This should be permanent finish,
+    // and shouldn't be reset until we explicitly tell the view model we want to retry
+    // enrollment.
+    viewLifecycleOwner.lifecycleScope.launch {
+      backgroundViewModel.background
+        .filter { inBackground -> inBackground }
+        .collect { rfpsViewModel.stopEnrollment() }
+    }
+
+    viewLifecycleOwner.lifecycleScope.launch {
+      rfpsViewModel.progress.filterNotNull().collect { progress -> handleEnrollProgress(progress) }
+    }
+
+    viewLifecycleOwner.lifecycleScope.launch {
+      rfpsViewModel.helpMessage.filterNotNull().collect { help ->
+        textView.text = help.helpString
+        textView.visibility = View.VISIBLE
+        textView.translationY =
+          resources.getDimensionPixelSize(R.dimen.fingerprint_error_text_appear_distance).toFloat()
+        textView.alpha = 0f
+        textView
+          .animate()
+          .alpha(1f)
+          .translationY(0f)
+          .setDuration(200)
+          .setInterpolator(linearOutSlowInInterpolator)
+          .start()
+
+      }
+    }
+
+    viewLifecycleOwner.lifecycleScope.launch {
+      rfpsViewModel.errorMessage.filterNotNull().collect { error -> handleEnrollError(error) }
+    }
+    viewLifecycleOwner.lifecycleScope.launch {
+      rfpsViewModel.textViewIsVisible.collect {
+        textView.visibility = if (it) View.VISIBLE else View.INVISIBLE
+      }
+    }
+
+    viewLifecycleOwner.lifecycleScope.launch {
+      rfpsViewModel.clearHelpMessage.collect {
+        textView
+          .animate()
+          .alpha(0f)
+          .translationY(
+            resources
+              .getDimensionPixelSize(R.dimen.fingerprint_error_text_disappear_distance)
+              .toFloat()
+          )
+          .setDuration(100)
+          .setInterpolator(fastOutLinearInInterpolator)
+          .withEndAction { rfpsViewModel.setVisibility(false) }
+          .start()
+      }
+    }
+
+    viewLifecycleOwner.lifecycleScope.launch {
+      repeatOnLifecycle(Lifecycle.State.DESTROYED) {
+        rfpsViewModel.stopEnrollment()
+        dismissDialogs()
+      }
+    }
+    return view
+  }
+
+  private fun handleEnrollError(error: FingerEnrollState.EnrollError) {
+    val fragment = this
+    viewLifecycleOwner.lifecycleScope.launch {
+      try {
+        val shouldRestartEnrollment = FingerprintErrorDialog.showInstance(error, fragment)
+      } catch (exception: Exception) {
+        Log.e(TAG, "Exception occurred $exception")
+      }
+      onEnrollmentFailed()
+    }
+  }
+
+  private fun onEnrollmentFailed() {
+    rfpsViewModel.stopEnrollment()
+  }
+
+  private fun handleEnrollProgress(progress: FingerEnrollState.EnrollProgress) {
+    progressBar.updateProgress(
+      progress.remainingSteps.toFloat() / progress.totalStepsRequired.toFloat()
+    )
+
+    if (progress.remainingSteps == 0) {
+      performNextStepSuccess()
+    }
+  }
+
+  private fun performNextStepSuccess() {}
+
+  private fun dismissDialogs() {
+    val transaction = parentFragmentManager.beginTransaction()
+    for (frag in parentFragmentManager.fragments) {
+      if (frag is InstrumentedDialogFragment) {
+        Log.d(TAG, "removing dialog settings fragment $frag")
+        frag.dismiss()
+        transaction.remove(frag)
+      }
+    }
+    transaction.commitAllowingStateLoss()
+  }
+}

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/modules/enrolling/rfps/ui/viewmodel/RFPSIconTouchViewModel.kt

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.viewmodel
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.shareIn
+import kotlinx.coroutines.flow.transform
+import kotlinx.coroutines.flow.update
+
+private const val touchesToShowDialog = 3
+/**
+ * This class is responsible for counting the number of touches on the fingerprint icon, and if this
+ * number reaches a threshold it will produce an action via [shouldShowDialog] to indicate the ui
+ * should show a dialog.
+ */
+class RFPSIconTouchViewModel : ViewModel() {
+
+  /** Keeps the number of times a user has touches the fingerprint icon. */
+  private val _touches: MutableStateFlow<Int> = MutableStateFlow(0)
+
+  /**
+   * Whether or not the UI should be showing the dialog. By making this SharingStarted.Eagerly
+   * the first event 0 % 3 == 0 will fire as soon as this view model is created, so it should
+   * be ignored and work as intended.
+   */
+  val shouldShowDialog: Flow<Boolean> =
+    _touches
+      .transform { numTouches -> emit((numTouches % touchesToShowDialog) == 0) }
+      .shareIn(viewModelScope, SharingStarted.Eagerly, 0)
+
+  /** Indicates a user has tapped on the fingerprint icon. */
+  fun userTouchedFingerprintIcon() {
+    _touches.update { _touches.value + 1 }
+  }
+
+  class RFPSIconTouchViewModelFactory : ViewModelProvider.Factory {
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel> create(modelClass: Class<T>): T {
+      return RFPSIconTouchViewModel() as T
+    }
+  }
+}

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/modules/enrolling/rfps/ui/viewmodel/RFPSViewModel.kt

@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.viewmodel
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.viewModelScope
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollState
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollEnrollingViewModel
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.filterIsInstance
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.shareIn
+import kotlinx.coroutines.flow.transform
+import kotlinx.coroutines.flow.update
+
+/** View Model used by the rear fingerprint enrollment fragment. */
+class RFPSViewModel(
+  private val fingerprintEnrollViewModel: FingerprintEnrollEnrollingViewModel,
+) : ViewModel() {
+
+  /** Value to indicate if the text view is visible or not **/
+  private val _textViewIsVisible = MutableStateFlow<Boolean>(false)
+  val textViewIsVisible: Flow<Boolean> = _textViewIsVisible.asStateFlow()
+
+  /** Indicates if the icon should be animating or not */
+  val shouldAnimateIcon = fingerprintEnrollViewModel.enrollFlowShouldBeRunning
+
+  private val enrollFlow: Flow<FingerEnrollState?> = fingerprintEnrollViewModel.enrollFLow
+
+  /**
+   * Enroll progress message with a replay of size 1 allowing for new subscribers to get the most
+   * recent state (this is useful for things like screen rotation)
+   */
+  val progress: Flow<FingerEnrollState.EnrollProgress?> =
+    enrollFlow
+      .filterIsInstance<FingerEnrollState.EnrollProgress>()
+      .shareIn(viewModelScope, SharingStarted.Eagerly, 1)
+
+  /** Clear help message on enroll progress */
+  val clearHelpMessage: Flow<Boolean> = progress.map { it != null }
+
+  /** Enroll help message that is only displayed once */
+  val helpMessage: Flow<FingerEnrollState.EnrollHelp?> =
+    enrollFlow
+      .filterIsInstance<FingerEnrollState.EnrollHelp>()
+      .shareIn(viewModelScope, SharingStarted.Eagerly, 0).transform {
+        _textViewIsVisible.update { true }
+      }
+
+  /**
+   * The error message should only be shown once, for scenarios like screen rotations, we don't want
+   * to re-show the error message.
+   */
+  val errorMessage: Flow<FingerEnrollState.EnrollError?> =
+    enrollFlow
+      .filterIsInstance<FingerEnrollState.EnrollError>()
+      .shareIn(viewModelScope, SharingStarted.Eagerly, 0)
+
+  /** Indicates if the consumer is ready for enrollment */
+  fun readyForEnrollment() {
+    fingerprintEnrollViewModel.canEnroll()
+  }
+
+  /** Indicates if enrollment should stop */
+  fun stopEnrollment() {
+    fingerprintEnrollViewModel.stopEnroll()
+  }
+
+  fun setVisibility(isVisible: Boolean) {
+    _textViewIsVisible.update { isVisible }
+  }
+
+  class RFPSViewModelFactory(
+    private val fingerprintEnrollEnrollingViewModel: FingerprintEnrollEnrollingViewModel,
+  ) : ViewModelProvider.Factory {
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel> create(
+      modelClass: Class<T>,
+    ): T {
+      return RFPSViewModel(fingerprintEnrollEnrollingViewModel) as T
+    }
+  }
+}

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/modules/enrolling/rfps/ui/widget/FingerprintErrorDialog.kt

@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.widget
+
+import android.app.AlertDialog
+import android.app.Dialog
+import android.app.settings.SettingsEnums
+import android.content.DialogInterface
+import android.os.Bundle
+import android.util.Log
+import androidx.fragment.app.Fragment
+import com.android.settings.R
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollState
+import com.android.settings.core.instrumentation.InstrumentedDialogFragment
+import kotlin.coroutines.resume
+import kotlinx.coroutines.suspendCancellableCoroutine
+
+private const val TAG = "FingerprintErrorDialog"
+
+/** A Dialog used for fingerprint enrollment when an error occurs. */
+class FingerprintErrorDialog : InstrumentedDialogFragment() {
+  private lateinit var onContinue: DialogInterface.OnClickListener
+  private lateinit var onTryAgain: DialogInterface.OnClickListener
+  private lateinit var onCancelListener: DialogInterface.OnCancelListener
+
+  override fun onCancel(dialog: DialogInterface) {
+    Log.d(TAG, "onCancel $dialog")
+    onCancelListener.onCancel(dialog)
+  }
+
+  override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+    Log.d(TAG, "onCreateDialog $this")
+    val errorString = requireArguments().getInt(KEY_MESSAGE)
+    val errorTitle = requireArguments().getInt(KEY_TITLE)
+    val builder = AlertDialog.Builder(requireContext())
+    val shouldShowTryAgain = requireArguments().getBoolean(KEY_SHOULD_TRY_AGAIN)
+    builder.setTitle(errorTitle).setMessage(errorString).setCancelable(false)
+
+    if (shouldShowTryAgain) {
+      builder
+        .setPositiveButton(R.string.security_settings_fingerprint_enroll_dialog_try_again) {
+          dialog,
+          which ->
+          dialog.dismiss()
+          onTryAgain.onClick(dialog, which)
+        }
+        .setNegativeButton(R.string.security_settings_fingerprint_enroll_dialog_ok) { dialog, which
+          ->
+          dialog.dismiss()
+          onContinue.onClick(dialog, which)
+        }
+    } else {
+      builder.setPositiveButton(R.string.security_settings_fingerprint_enroll_dialog_ok) {
+        dialog,
+        which ->
+        dialog.dismiss()
+        onContinue.onClick(dialog, which)
+      }
+    }
+
+    val dialog = builder.create()
+    dialog.setCanceledOnTouchOutside(false)
+    return dialog
+  }
+
+  override fun getMetricsCategory(): Int {
+    return SettingsEnums.DIALOG_FINGERPINT_ERROR
+  }
+
+  companion object {
+    private const val KEY_MESSAGE = "fingerprint_message"
+    private const val KEY_TITLE = "fingerprint_title"
+    private const val KEY_SHOULD_TRY_AGAIN = "should_try_again"
+
+    suspend fun showInstance(
+        error: FingerEnrollState.EnrollError,
+        fragment: Fragment,
+    ) = suspendCancellableCoroutine { continuation ->
+      val dialog = FingerprintErrorDialog()
+      dialog.onTryAgain = DialogInterface.OnClickListener { _, _ -> continuation.resume(true) }
+
+      dialog.onContinue = DialogInterface.OnClickListener { _, _ -> continuation.resume(false) }
+
+      dialog.onCancelListener =
+        DialogInterface.OnCancelListener {
+          Log.d(TAG, "onCancelListener clicked $dialog")
+          continuation.resume(null)
+        }
+
+      continuation.invokeOnCancellation { Log.d(TAG, "invokeOnCancellation $dialog") }
+
+      val bundle = Bundle()
+      bundle.putInt(
+        KEY_TITLE,
+        error.errTitle,
+      )
+      bundle.putInt(
+        KEY_MESSAGE,
+        error.errString,
+      )
+      bundle.putBoolean(
+        KEY_SHOULD_TRY_AGAIN,
+        error.shouldRetryEnrollment,
+      )
+      dialog.arguments = bundle
+      Log.d(TAG, "showing dialog $dialog")
+      dialog.show(fragment.parentFragmentManager, FingerprintErrorDialog::class.java.toString())
+    }
+  }
+}

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/modules/enrolling/rfps/ui/widget/IconTouchDialog.kt

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.widget
+
+import android.app.AlertDialog
+import android.app.Dialog
+import android.app.settings.SettingsEnums
+import android.content.DialogInterface
+import android.os.Bundle
+import android.util.Log
+import androidx.fragment.app.Fragment
+import com.android.settings.R
+import com.android.settings.core.instrumentation.InstrumentedDialogFragment
+import kotlin.coroutines.resume
+import kotlinx.coroutines.suspendCancellableCoroutine
+
+private const val TAG = "IconTouchDialog"
+
+/** Dialog shown when the user taps the Progress bar a certain amount of times. */
+class IconTouchDialog : InstrumentedDialogFragment() {
+  lateinit var onDismissListener: DialogInterface.OnClickListener
+  lateinit var onCancelListener: DialogInterface.OnCancelListener
+
+  override fun onCancel(dialog: DialogInterface) {
+    Log.d(TAG, "onCancel $dialog")
+    onCancelListener.onCancel(dialog)
+  }
+
+  override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+    val builder: AlertDialog.Builder = AlertDialog.Builder(activity, R.style.Theme_AlertDialog)
+    builder
+      .setTitle(R.string.security_settings_fingerprint_enroll_touch_dialog_title)
+      .setMessage(R.string.security_settings_fingerprint_enroll_touch_dialog_message)
+      .setPositiveButton(R.string.security_settings_fingerprint_enroll_dialog_ok) { dialog, which ->
+        dialog.dismiss()
+        onDismissListener.onClick(dialog, which)
+      }
+      .setOnCancelListener { onCancelListener.onCancel(it) }
+    return builder.create()
+  }
+
+  override fun getMetricsCategory(): Int {
+    return SettingsEnums.DIALOG_FINGERPRINT_ICON_TOUCH
+  }
+
+  companion object {
+    suspend fun showInstance(fragment: Fragment) = suspendCancellableCoroutine { continuation ->
+      val dialog = IconTouchDialog()
+      dialog.onDismissListener =
+        DialogInterface.OnClickListener { _, _ -> continuation.resume("Done") }
+      dialog.onCancelListener =
+        DialogInterface.OnCancelListener { _ -> continuation.resume("OnCancel") }
+
+      continuation.invokeOnCancellation { Log.d(TAG, "invokeOnCancellation $dialog") }
+
+      dialog.show(fragment.parentFragmentManager, IconTouchDialog::class.java.toString())
+    }
+  }
+}

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/modules/enrolling/rfps/ui/widget/RFPSProgressBar.kt

@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.widget
+
+import android.animation.ObjectAnimator
+import android.content.Context
+import android.graphics.PorterDuff
+import android.graphics.drawable.Animatable2
+import android.graphics.drawable.AnimatedVectorDrawable
+import android.graphics.drawable.Drawable
+import android.graphics.drawable.LayerDrawable
+import android.util.AttributeSet
+import android.view.animation.AnimationUtils
+import android.view.animation.Interpolator
+import com.android.settings.R
+import com.android.settings.widget.RingProgressBar
+
+/** Progress bar for rear fingerprint enrollment. */
+class RFPSProgressBar(context: Context, attributeSet: AttributeSet) :
+  RingProgressBar(context, attributeSet) {
+
+  private val fastOutSlowInInterpolator: Interpolator
+
+  private val iconAnimationDrawable: AnimatedVectorDrawable
+  private val iconBackgroundBlinksDrawable: AnimatedVectorDrawable
+
+  private val maxProgress: Int
+
+  private var progressAnimation: ObjectAnimator? = null
+
+  private var shouldAnimateInternal: Boolean = true
+
+  init {
+    val fingerprintDrawable = background as LayerDrawable
+    iconAnimationDrawable =
+      fingerprintDrawable.findDrawableByLayerId(R.id.fingerprint_animation)
+        as AnimatedVectorDrawable
+    iconBackgroundBlinksDrawable =
+      fingerprintDrawable.findDrawableByLayerId(R.id.fingerprint_background)
+        as AnimatedVectorDrawable
+
+    fastOutSlowInInterpolator =
+      AnimationUtils.loadInterpolator(context, android.R.interpolator.fast_out_slow_in)
+
+    iconAnimationDrawable.registerAnimationCallback(
+      object : Animatable2.AnimationCallback() {
+        override fun onAnimationEnd(drawable: Drawable?) {
+          super.onAnimationEnd(drawable)
+          if (shouldAnimateInternal) {
+            animateIconAnimationInternal()
+          }
+        }
+      }
+    )
+    animateIconAnimationInternal()
+
+    progressBackgroundTintMode = PorterDuff.Mode.SRC
+
+    val attributes =
+      context.obtainStyledAttributes(R.style.RingProgressBarStyle, intArrayOf(android.R.attr.max))
+
+    maxProgress = attributes.getInt(0, -1)
+
+    attributes.recycle()
+  }
+
+  /** Indicates if the progress animation should be running */
+  fun updateIconAnimation(shouldAnimate: Boolean) {
+    if (shouldAnimate && !shouldAnimateInternal) {
+      animateIconAnimationInternal()
+    }
+
+    shouldAnimateInternal = shouldAnimate
+  }
+
+  /** This function should only be called when actual progress has been made. */
+  fun updateProgress(percentComplete: Float) {
+    val progress = maxProgress - (percentComplete.coerceIn(0.0f, 100.0f) * maxProgress).toInt()
+    iconBackgroundBlinksDrawable.start()
+
+    progressAnimation?.isRunning?.let { progressAnimation!!.cancel() }
+
+    progressAnimation = ObjectAnimator.ofInt(this, "progress", getProgress(), progress)
+
+    progressAnimation?.interpolator = fastOutSlowInInterpolator
+    progressAnimation?.setDuration(250)
+    progressAnimation?.start()
+  }
+
+  private fun animateIconAnimationInternal() {
+    iconAnimationDrawable.start()
+  }
+}

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/viewmodel/BackgroundViewModel.kt

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+
+/** A class for determining if the application is in the background or not. */
+class BackgroundViewModel : ViewModel() {
+
+  private val _background = MutableStateFlow(false)
+  /** When true, the application is in background, else false */
+  val background = _background.asStateFlow()
+
+  /** Indicates that the application has been put in the background. */
+  fun wentToBackground() {
+    _background.update { true }
+  }
+
+  /** Indicates that the application has been brought to the foreground. */
+  fun inForeground() {
+    _background.update { false }
+  }
+
+  class BackgroundViewModelFactory : ViewModelProvider.Factory {
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel> create(modelClass: Class<T>): T {
+      return BackgroundViewModel() as T
+    }
+  }
+}

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/viewmodel/FingerprintEnrollEnrollingViewModel.kt

@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.combine
+import kotlinx.coroutines.flow.transformLatest
+import kotlinx.coroutines.flow.update
+
+/**
+ * This class is a wrapper around the [FingerprintEnrollViewModel] and decides when
+ * the user should or should not be enrolling.
+ */
+class FingerprintEnrollEnrollingViewModel(
+  private val fingerprintEnrollViewModel: FingerprintEnrollViewModel,
+  backgroundViewModel: BackgroundViewModel,
+) : ViewModel() {
+
+  private val _didTryEnrollment = MutableStateFlow(false)
+  private val _userDidEnroll = MutableStateFlow(false)
+  /** Indicates if the enrollment flow should be running. */
+  val enrollFlowShouldBeRunning: Flow<Boolean> =
+    _userDidEnroll.combine(backgroundViewModel.background) { shouldEnroll, isInBackground ->
+      if (isInBackground) {
+        false
+      } else {
+        shouldEnroll
+      }
+    }
+
+  /**
+   * Used to indicate the consumer of the view model is ready for an enrollment. Note that this does
+   * not necessarily try an enrollment.
+   */
+  fun canEnroll() {
+    // Update _consumerShouldEnroll after updating the other values.
+    if (!_didTryEnrollment.value) {
+      _didTryEnrollment.update { true }
+      _userDidEnroll.update { true }
+    }
+  }
+
+  /** Used to indicate to stop the enrollment. */
+  fun stopEnroll() {
+    _userDidEnroll.update { false }
+  }
+
+  /** Collects the enrollment flow based on [enrollFlowShouldBeRunning] */
+  val enrollFLow =
+    enrollFlowShouldBeRunning.transformLatest {
+      if (it) {
+        fingerprintEnrollViewModel.enrollFlow.collect { event -> emit(event) }
+      }
+    }
+
+  class FingerprintEnrollEnrollingViewModelFactory(
+    private val fingerprintEnrollViewModel: FingerprintEnrollViewModel,
+    private val backgroundViewModel: BackgroundViewModel
+  ) : ViewModelProvider.Factory {
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : ViewModel> create(
+      modelClass: Class<T>,
+    ): T {
+      return FingerprintEnrollEnrollingViewModel(fingerprintEnrollViewModel, backgroundViewModel)
+        as T
+    }
+  }
+}

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/viewmodel/FingerprintEnrollFindSensorViewModel.kt

@@ -16,12 +16,11 @@
 
 package com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel
 
-import android.hardware.fingerprint.FingerprintManager
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewModelScope
-import com.android.settings.biometrics.fingerprint2.shared.model.EnrollReason
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollStateViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollState
+import com.android.settings.biometrics.fingerprint2.shared.model.SetupWizard
 import com.android.systemui.biometrics.shared.model.FingerprintSensorType
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
@@ -40,6 +39,7 @@ class FingerprintEnrollFindSensorViewModel(
   private val navigationViewModel: FingerprintEnrollNavigationViewModel,
   private val fingerprintEnrollViewModel: FingerprintEnrollViewModel,
   private val gatekeeperViewModel: FingerprintGatekeeperViewModel,
+  backgroundViewModel: BackgroundViewModel,
   accessibilityViewModel: AccessibilityViewModel,
   foldStateViewModel: FoldStateViewModel,
   orientationStateViewModel: OrientationStateViewModel
@@ -88,6 +88,14 @@ class FingerprintEnrollFindSensorViewModel(
   /** Represents the stream of showing error dialog. */
   val showErrorDialog = _showErrorDialog.filterNotNull()
 
+  private var _didTryEducation = false
+  private var _education: MutableStateFlow<Boolean> = MutableStateFlow(false)
+  /** Indicates if the education flow should be running. */
+  private val educationFlowShouldBeRunning: Flow<Boolean> =
+    _education.combine(backgroundViewModel.background) { shouldRunEducation, isInBackground ->
+      !isInBackground && shouldRunEducation
+    }
+
   init {
     // Start or end enroll flow
     viewModelScope.launch {
@@ -107,40 +115,58 @@ class FingerprintEnrollFindSensorViewModel(
         }
         .collect { token ->
           if (token != null) {
-            fingerprintEnrollViewModel.startEnroll(token, EnrollReason.FindSensor)
+            canStartEducation()
           } else {
-            fingerprintEnrollViewModel.stopEnroll()
+            stopEducation()
           }
         }
     }
 
     // Enroll progress flow
     viewModelScope.launch {
-      combine(
-          navigationViewModel.enrollType,
-          fingerprintEnrollViewModel.enrollFlow.filterNotNull()
-        ) { enrollType, enrollFlow ->
-          Pair(enrollType, enrollFlow)
-        }
-        .collect { (enrollType, enrollFlow) ->
-          when (enrollFlow) {
-            // TODO: Cancel the enroll() when EnrollProgress is received instead of proceeding to
-            // Enrolling page. Otherwise Enrolling page will receive the EnrollError.
-            is FingerEnrollStateViewModel.EnrollProgress -> proceedToEnrolling()
-            is FingerEnrollStateViewModel.EnrollError -> {
-              val errMsgId = enrollFlow.errMsgId
-              if (errMsgId == FingerprintManager.FINGERPRINT_ERROR_CANCELED) {
-                proceedToEnrolling()
-              } else {
-                _showErrorDialog.update { Pair(errMsgId, enrollType == SetupWizard) }
+      educationFlowShouldBeRunning.collect {
+        // Only collect the flow when we should be running.
+        if (it) {
+          combine(
+              navigationViewModel.fingerprintFlow,
+              fingerprintEnrollViewModel.educationEnrollFlow.filterNotNull(),
+            ) { enrollType, educationFlow ->
+              Pair(enrollType, educationFlow)
+            }
+            .collect { (enrollType, educationFlow) ->
+              when (educationFlow) {
+                // TODO: Cancel the enroll() when EnrollProgress is received instead of proceeding
+                // to
+                // Enrolling page. Otherwise Enrolling page will receive the EnrollError.
+                is FingerEnrollState.EnrollProgress -> proceedToEnrolling()
+                is FingerEnrollState.EnrollError -> {
+                  if (educationFlow.isCancelled) {
+                    proceedToEnrolling()
+                  } else {
+                    _showErrorDialog.update { Pair(educationFlow.errString, enrollType == SetupWizard) }
+                  }
+                }
+                is FingerEnrollState.EnrollHelp -> {}
               }
             }
-            is FingerEnrollStateViewModel.EnrollHelp -> {}
-          }
         }
+      }
     }
   }
 
+  /** Indicates if education can begin */
+  private fun canStartEducation() {
+    if (!_didTryEducation) {
+      _didTryEducation = true
+      _education.update { true }
+    }
+  }
+
+  /** Indicates that education has finished */
+  private fun stopEducation() {
+    _education.update { false }
+  }
+
   /** Proceed to EnrollEnrolling page. */
   fun proceedToEnrolling() {
     navigationViewModel.nextStep()
@@ -150,6 +176,7 @@ class FingerprintEnrollFindSensorViewModel(
     private val navigationViewModel: FingerprintEnrollNavigationViewModel,
     private val fingerprintEnrollViewModel: FingerprintEnrollViewModel,
     private val gatekeeperViewModel: FingerprintGatekeeperViewModel,
+    private val backgroundViewModel: BackgroundViewModel,
     private val accessibilityViewModel: AccessibilityViewModel,
     private val foldStateViewModel: FoldStateViewModel,
     private val orientationStateViewModel: OrientationStateViewModel
@@ -160,6 +187,7 @@ class FingerprintEnrollFindSensorViewModel(
         navigationViewModel,
         fingerprintEnrollViewModel,
         gatekeeperViewModel,
+        backgroundViewModel,
         accessibilityViewModel,
         foldStateViewModel,
         orientationStateViewModel

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/viewmodel/FingerprintEnrollViewModel.kt

@@ -17,32 +17,41 @@ package com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.viewModelScope
 import com.android.settings.biometrics.fingerprint2.shared.domain.interactor.FingerprintManagerInteractor
 import com.android.settings.biometrics.fingerprint2.shared.model.EnrollReason
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollStateViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollState
 import com.android.systemui.biometrics.shared.model.FingerprintSensorType
-import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.filterNotNull
-import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.shareIn
 import kotlinx.coroutines.flow.transformLatest
-import kotlinx.coroutines.flow.update
-
-private const val TAG = "FingerprintEnrollViewModel"
 
 /** Represents all of the fingerprint information needed for a fingerprint enrollment process. */
 class FingerprintEnrollViewModel(
   private val fingerprintManagerInteractor: FingerprintManagerInteractor,
-  backgroundDispatcher: CoroutineDispatcher,
+  gatekeeperViewModel: FingerprintGatekeeperViewModel,
+  navigationViewModel: FingerprintEnrollNavigationViewModel,
 ) : ViewModel() {
 
-  private var _enrollReason: MutableStateFlow<EnrollReason> =
-    MutableStateFlow(EnrollReason.FindSensor)
-  private var _hardwareAuthToken: MutableStateFlow<ByteArray?> = MutableStateFlow(null)
-  private var _consumerShouldEnroll: MutableStateFlow<Boolean> = MutableStateFlow(false)
+  /**
+   * Cached value of [FingerprintSensorType]
+   *
+   * This is typically used by fragments that change their layout/behavior based on this
+   * information. This value should be set before any fragment is created.
+   */
+  var sensorTypeCached: FingerprintSensorType? = null
+  private var _enrollReason: Flow<EnrollReason?> =
+    navigationViewModel.navigationViewModel.map {
+      when (it.currStep) {
+        is Enrollment -> EnrollReason.EnrollEnrolling
+        is Education -> EnrollReason.FindSensor
+        else -> null
+      }
+    }
 
   /** Represents the stream of [FingerprintSensorType] */
   val sensorType: Flow<FingerprintSensorType> =
@@ -51,47 +60,68 @@ class FingerprintEnrollViewModel(
   /**
    * A flow that contains a [FingerprintEnrollViewModel] which contains the relevant information for
    * an enrollment process
+   *
+   * This flow should be the only flow which calls enroll().
    */
-  val enrollFlow: Flow<FingerEnrollStateViewModel> =
-    combine(_consumerShouldEnroll, _hardwareAuthToken, _enrollReason) {
-        consumerShouldEnroll,
-        hardwareAuthToken,
-        enrollReason ->
-        Triple(consumerShouldEnroll, hardwareAuthToken, enrollReason)
+  val _enrollFlow: Flow<FingerEnrollState> =
+    combine(gatekeeperViewModel.gatekeeperInfo, _enrollReason) { hardwareAuthToken, enrollReason,
+        ->
+        Pair(hardwareAuthToken, enrollReason)
       }
       .transformLatest {
-        // transformLatest() instead of transform() is used here for cancelling previous enroll()
-        // whenever |consumerShouldEnroll| is changed. Otherwise the latest value will be suspended
-        // since enroll() is an infinite callback flow.
-        (consumerShouldEnroll, hardwareAuthToken, enrollReason) ->
-        if (consumerShouldEnroll && hardwareAuthToken != null) {
-          fingerprintManagerInteractor.enroll(hardwareAuthToken, enrollReason).collect { emit(it) }
+        /** [transformLatest] is used as we want to make sure to cancel previous API call. */
+        (hardwareAuthToken, enrollReason) ->
+        if (hardwareAuthToken is GatekeeperInfo.GatekeeperPasswordInfo && enrollReason != null) {
+          fingerprintManagerInteractor.enroll(hardwareAuthToken.token, enrollReason).collect {
+            emit(it)
+          }
         }
       }
-      .flowOn(backgroundDispatcher)
+      .shareIn(viewModelScope, SharingStarted.WhileSubscribed(), 0)
 
-  /** Used to indicate the consumer of the view model is ready for an enrollment. */
-  fun startEnroll(hardwareAuthToken: ByteArray?, enrollReason: EnrollReason) {
-    _enrollReason.update { enrollReason }
-    _hardwareAuthToken.update { hardwareAuthToken }
-    // Update _consumerShouldEnroll after updating the other values.
-    _consumerShouldEnroll.update { true }
-  }
+  /**
+   * This flow will kick off education when
+   * 1) There is an active subscriber to this flow
+   * 2) shouldEnroll is true and we are on the FindSensor step
+   */
+  val educationEnrollFlow: Flow<FingerEnrollState?> =
+    _enrollReason.filterNotNull().transformLatest { enrollReason ->
+      if (enrollReason == EnrollReason.FindSensor) {
+        _enrollFlow.collect { event -> emit(event) }
+      } else {
+        emit(null)
+      }
+    }
 
-  /** Used to indicate to stop the enrollment. */
-  fun stopEnroll() {
-    _consumerShouldEnroll.update { false }
-  }
+  /**
+   * This flow will kick off enrollment when
+   * 1) There is an active subscriber to this flow
+   * 2) shouldEnroll is true and we are on the EnrollEnrolling step
+   */
+  val enrollFlow: Flow<FingerEnrollState?> =
+    _enrollReason.filterNotNull().transformLatest { enrollReason ->
+      if (enrollReason == EnrollReason.EnrollEnrolling) {
+        _enrollFlow.collect { event -> emit(event) }
+      } else {
+        emit(null)
+      }
+    }
 
   class FingerprintEnrollViewModelFactory(
     val interactor: FingerprintManagerInteractor,
-    val backgroundDispatcher: CoroutineDispatcher
+    val gatekeeperViewModel: FingerprintGatekeeperViewModel,
+    val navigationViewModel: FingerprintEnrollNavigationViewModel,
   ) : ViewModelProvider.Factory {
     @Suppress("UNCHECKED_CAST")
     override fun <T : ViewModel> create(
       modelClass: Class<T>,
     ): T {
-      return FingerprintEnrollViewModel(interactor, backgroundDispatcher) as T
+      return FingerprintEnrollViewModel(
+        interactor,
+        gatekeeperViewModel,
+        navigationViewModel,
+      )
+        as T
     }
   }
 }

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/viewmodel/FingerprintEnrolllNavigationViewModel.kt

@@ -21,30 +21,19 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewModelScope
 import com.android.settings.biometrics.fingerprint2.shared.domain.interactor.FingerprintManagerInteractor
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintFlow
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.filterNotNull
+import kotlinx.coroutines.flow.shareIn
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 
 private const val TAG = "FingerprintEnrollNavigationViewModel"
 
-/**
- * The [EnrollType] for fingerprint enrollment indicates information on how the flow should behave.
- */
-sealed class EnrollType
-
-/** The default enrollment experience, typically called from Settings */
-object Default : EnrollType()
-
-/** SetupWizard/Out of box experience (OOBE) enrollment type. */
-object SetupWizard : EnrollType()
-
-/** Unicorn enrollment type */
-object Unicorn : EnrollType()
-
 /**
  * This class is responsible for sending a [NavigationStep] which indicates where the user is in the
  * Fingerprint Enrollment flow
@@ -53,31 +42,26 @@ class FingerprintEnrollNavigationViewModel(
   private val dispatcher: CoroutineDispatcher,
   private val fingerprintManagerInteractor: FingerprintManagerInteractor,
   private val gatekeeperViewModel: FingerprintGatekeeperViewModel,
-  private val canSkipConfirm: Boolean
+  private val firstStep: NextStepViewModel,
+  private val navState: NavState,
+  private val theFingerprintFlow: FingerprintFlow,
 ) : ViewModel() {
 
   private class InternalNavigationStep(
     lastStep: NextStepViewModel,
     nextStep: NextStepViewModel,
     forward: Boolean,
-    var canNavigate: Boolean
+    var canNavigate: Boolean,
   ) : NavigationStep(lastStep, nextStep, forward)
 
-  private var _enrollType = MutableStateFlow<EnrollType?>(Default)
+  private var _fingerprintFlow = MutableStateFlow<FingerprintFlow?>(theFingerprintFlow)
 
-  /** A flow that indicates the [EnrollType] */
-  val enrollType: Flow<EnrollType?> = _enrollType.asStateFlow()
-
-  private var navState = NavState(canSkipConfirm)
+  /** A flow that indicates the [FingerprintFlow] */
+  val fingerprintFlow: Flow<FingerprintFlow?> = _fingerprintFlow.asStateFlow()
 
   private val _navigationStep =
     MutableStateFlow(
-      InternalNavigationStep(
-        PlaceHolderState,
-        Start.next(navState),
-        forward = false,
-        canNavigate = true
-      )
+      InternalNavigationStep(PlaceHolderState, firstStep, forward = false, canNavigate = true)
     )
 
   init {
@@ -96,6 +80,10 @@ class FingerprintEnrollNavigationViewModel(
    */
   val navigationViewModel: Flow<NavigationStep> = _navigationStep.asStateFlow()
 
+  /** This action indicates that the UI should actually update the navigation to the given step. */
+  val navigationAction: Flow<NavigationStep?> =
+    _navigationStep.shareIn(viewModelScope, SharingStarted.Lazily, 0)
+
   /** Used to start the next step of Fingerprint Enrollment. */
   fun nextStep() {
     viewModelScope.launch {
@@ -130,6 +118,7 @@ class FingerprintEnrollNavigationViewModel(
     private val fingerprintManagerInteractor: FingerprintManagerInteractor,
     private val fingerprintGatekeeperViewModel: FingerprintGatekeeperViewModel,
     private val canSkipConfirm: Boolean,
+    private val fingerprintFlow: FingerprintFlow,
   ) : ViewModelProvider.Factory {
 
     @Suppress("UNCHECKED_CAST")
@@ -137,11 +126,14 @@ class FingerprintEnrollNavigationViewModel(
       modelClass: Class<T>,
     ): T {
 
+      val navState = NavState(canSkipConfirm)
       return FingerprintEnrollNavigationViewModel(
         backgroundDispatcher,
         fingerprintManagerInteractor,
         fingerprintGatekeeperViewModel,
-        canSkipConfirm,
+        Start.next(navState),
+        navState,
+        fingerprintFlow,
       )
         as T
     }

src/com/android/settings/biometrics/fingerprint2/ui/enrollment/viewmodel/NextStepViewModel.kt

@@ -57,7 +57,7 @@ object PlaceHolderState : NextStepViewModel() {
  * This state is the initial state for the current step, and will be used to determine if the user
  * needs to [LaunchConfirmDeviceCredential] if not, it will go to [Intro]
  */
-object Start : NextStepViewModel() {
+data object Start : NextStepViewModel() {
   override fun next(state: NavState): NextStepViewModel =
     if (state.confirmedDevice) Intro else LaunchConfirmDeviceCredential
 
@@ -71,19 +71,19 @@ class Finish(val resultCode: Int?) : NextStepViewModel() {
 }
 
 /** State for the FingerprintEnrollment introduction */
-object Intro : NextStepViewModel() {
+data object Intro : NextStepViewModel() {
   override fun next(state: NavState): NextStepViewModel = Education
   override fun prev(state: NavState): NextStepViewModel = Finish(null)
 }
 
 /** State for the FingerprintEnrollment education */
-object Education : NextStepViewModel() {
+data object Education : NextStepViewModel() {
   override fun next(state: NavState): NextStepViewModel = Enrollment
   override fun prev(state: NavState): NextStepViewModel = Intro
 }
 
 /** State for the FingerprintEnrollment enrollment */
-object Enrollment : NextStepViewModel() {
+data object Enrollment : NextStepViewModel() {
   override fun next(state: NavState): NextStepViewModel = Confirmation
   override fun prev(state: NavState): NextStepViewModel = Education
 }

src/com/android/settings/biometrics/fingerprint2/ui/settings/binder/FingerprintSettingsViewBinder.kt

@@ -19,8 +19,8 @@ package com.android.settings.biometrics.fingerprint2.ui.settings.binder
 import android.hardware.fingerprint.FingerprintManager
 import android.util.Log
 import androidx.lifecycle.LifecycleCoroutineScope
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptViewModel
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintData
 import com.android.settings.biometrics.fingerprint2.ui.settings.binder.FingerprintSettingsViewBinder.FingerprintView
 import com.android.settings.biometrics.fingerprint2.ui.settings.viewmodel.EnrollAdditionalFingerprint
 import com.android.settings.biometrics.fingerprint2.ui.settings.viewmodel.EnrollFirstFingerprint
@@ -66,21 +66,21 @@ object FingerprintSettingsViewBinder {
     /** Indicates what result should be set for the returning callee */
     fun setResultExternal(resultCode: Int)
     /** Indicates the settings UI should be shown */
-    fun showSettings(enrolledFingerprints: List<FingerprintViewModel>)
+    fun showSettings(enrolledFingerprints: List<FingerprintData>)
     /** Updates the add fingerprints preference */
     fun updateAddFingerprintsPreference(canEnroll: Boolean, maxFingerprints: Int)
     /** Updates the sfps fingerprints preference */
     fun updateSfpsPreference(isSfpsPrefVisible: Boolean)
     /** Indicates that a user has been locked out */
-    fun userLockout(authAttemptViewModel: FingerprintAuthAttemptViewModel.Error)
+    fun userLockout(authAttemptViewModel: FingerprintAuthAttemptModel.Error)
     /** Indicates a fingerprint preference should be highlighted */
     suspend fun highlightPref(fingerId: Int)
     /** Indicates a user should be prompted to delete a fingerprint */
-    suspend fun askUserToDeleteDialog(fingerprintViewModel: FingerprintViewModel): Boolean
+    suspend fun askUserToDeleteDialog(fingerprintViewModel: FingerprintData): Boolean
     /** Indicates a user should be asked to renae ma dialog */
     suspend fun askUserToRenameDialog(
-      fingerprintViewModel: FingerprintViewModel
-    ): Pair<FingerprintViewModel, String>?
+      fingerprintViewModel: FingerprintData
+    ): Pair<FingerprintData, String>?
   }
 
   fun bind(
@@ -131,10 +131,10 @@ object FingerprintSettingsViewBinder {
     lifecycleScope.launch {
       viewModel.authFlow.filterNotNull().collect {
         when (it) {
-          is FingerprintAuthAttemptViewModel.Success -> {
+          is FingerprintAuthAttemptModel.Success -> {
             view.highlightPref(it.fingerId)
           }
-          is FingerprintAuthAttemptViewModel.Error -> {
+          is FingerprintAuthAttemptModel.Error -> {
             if (it.error == FingerprintManager.FINGERPRINT_ERROR_LOCKOUT) {
               view.userLockout(it)
             }

src/com/android/settings/biometrics/fingerprint2/ui/settings/fragment/FingerprintDeletionDialog.kt

@@ -26,7 +26,7 @@ import android.os.Bundle
 import android.os.UserManager
 import androidx.appcompat.app.AlertDialog
 import com.android.settings.R
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintData
 import com.android.settings.core.instrumentation.InstrumentedDialogFragment
 import kotlin.coroutines.resume
 import kotlinx.coroutines.suspendCancellableCoroutine
@@ -34,7 +34,7 @@ import kotlinx.coroutines.suspendCancellableCoroutine
 private const val KEY_IS_LAST_FINGERPRINT = "IS_LAST_FINGERPRINT"
 
 class FingerprintDeletionDialog : InstrumentedDialogFragment() {
-  private lateinit var fingerprintViewModel: FingerprintViewModel
+  private lateinit var fingerprintViewModel: FingerprintData
   private var isLastFingerprint: Boolean = false
   private lateinit var alertDialog: AlertDialog
   lateinit var onClickListener: DialogInterface.OnClickListener
@@ -51,7 +51,7 @@ class FingerprintDeletionDialog : InstrumentedDialogFragment() {
 
   override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
     val fp = requireArguments().get(KEY_FINGERPRINT) as android.hardware.fingerprint.Fingerprint
-    fingerprintViewModel = FingerprintViewModel(fp.name.toString(), fp.biometricId, fp.deviceId)
+    fingerprintViewModel = FingerprintData(fp.name.toString(), fp.biometricId, fp.deviceId)
     isLastFingerprint = requireArguments().getBoolean(KEY_IS_LAST_FINGERPRINT)
     val title = getString(R.string.fingerprint_delete_title, fingerprintViewModel.name)
     var message = getString(R.string.fingerprint_v2_delete_message, fingerprintViewModel.name)
@@ -95,9 +95,9 @@ class FingerprintDeletionDialog : InstrumentedDialogFragment() {
   companion object {
     private const val KEY_FINGERPRINT = "fingerprint"
     suspend fun showInstance(
-      fp: FingerprintViewModel,
-      lastFingerprint: Boolean,
-      target: FingerprintSettingsV2Fragment,
+        fp: FingerprintData,
+        lastFingerprint: Boolean,
+        target: FingerprintSettingsV2Fragment,
     ) = suspendCancellableCoroutine { continuation ->
       val dialog = FingerprintDeletionDialog()
       dialog.onClickListener = DialogInterface.OnClickListener { _, _ -> continuation.resume(true) }

src/com/android/settings/biometrics/fingerprint2/ui/settings/fragment/FingerprintSettingsPreference.kt

@@ -22,7 +22,7 @@ import android.view.View
 import androidx.lifecycle.lifecycleScope
 import androidx.preference.PreferenceViewHolder
 import com.android.settings.R
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintData
 import com.android.settingslib.widget.TwoTargetPreference
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
@@ -30,10 +30,10 @@ import kotlinx.coroutines.launch
 private const val TAG = "FingerprintSettingsPreference"
 
 class FingerprintSettingsPreference(
-  context: Context,
-  val fingerprintViewModel: FingerprintViewModel,
-  val fragment: FingerprintSettingsV2Fragment,
-  val isLastFingerprint: Boolean
+    context: Context,
+    val fingerprintViewModel: FingerprintData,
+    val fragment: FingerprintSettingsV2Fragment,
+    val isLastFingerprint: Boolean
 ) : TwoTargetPreference(context) {
   private lateinit var myView: View
 
@@ -79,7 +79,7 @@ class FingerprintSettingsPreference(
     return FingerprintDeletionDialog.showInstance(fingerprintViewModel, isLastFingerprint, fragment)
   }
 
-  suspend fun askUserToRenameDialog(): Pair<FingerprintViewModel, String>? {
+  suspend fun askUserToRenameDialog(): Pair<FingerprintData, String>? {
     return FingerprintSettingsRenameDialog.showInstance(fingerprintViewModel, fragment)
   }
 }

src/com/android/settings/biometrics/fingerprint2/ui/settings/fragment/FingerprintSettingsRenameDialog.kt

@@ -27,7 +27,7 @@ import android.util.Log
 import android.widget.ImeAwareEditText
 import androidx.appcompat.app.AlertDialog
 import com.android.settings.R
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintData
 import com.android.settings.core.instrumentation.InstrumentedDialogFragment
 import kotlin.coroutines.resume
 import kotlinx.coroutines.suspendCancellableCoroutine
@@ -46,7 +46,7 @@ class FingerprintSettingsRenameDialog : InstrumentedDialogFragment() {
   override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
     Log.d(TAG, "onCreateDialog $this")
     val fp = requireArguments().get(KEY_FINGERPRINT) as android.hardware.fingerprint.Fingerprint
-    val fingerprintViewModel = FingerprintViewModel(fp.name.toString(), fp.biometricId, fp.deviceId)
+    val fingerprintViewModel = FingerprintData(fp.name.toString(), fp.biometricId, fp.deviceId)
 
     val context = requireContext()
     val alertDialog =
@@ -101,7 +101,7 @@ class FingerprintSettingsRenameDialog : InstrumentedDialogFragment() {
   companion object {
     private const val KEY_FINGERPRINT = "fingerprint"
 
-    suspend fun showInstance(fp: FingerprintViewModel, target: FingerprintSettingsV2Fragment) =
+    suspend fun showInstance(fp: FingerprintData, target: FingerprintSettingsV2Fragment) =
       suspendCancellableCoroutine { continuation ->
         val dialog = FingerprintSettingsRenameDialog()
         val onClick =

src/com/android/settings/biometrics/fingerprint2/ui/settings/fragment/FingerprintSettingsV2Fragment.kt

@@ -46,8 +46,10 @@ import com.android.settings.biometrics.GatekeeperPasswordProvider
 import com.android.settings.biometrics.fingerprint.FingerprintEnrollEnrolling
 import com.android.settings.biometrics.fingerprint.FingerprintEnrollIntroductionInternal
 import com.android.settings.biometrics.fingerprint2.domain.interactor.FingerprintManagerInteractorImpl
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptViewModel
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintViewModel
+import com.android.settings.biometrics.fingerprint2.repository.PressToAuthProviderImpl
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintData
+import com.android.settings.biometrics.fingerprint2.shared.model.Settings
 import com.android.settings.biometrics.fingerprint2.ui.settings.binder.FingerprintSettingsViewBinder
 import com.android.settings.biometrics.fingerprint2.ui.settings.viewmodel.FingerprintSettingsNavigationViewModel
 import com.android.settings.biometrics.fingerprint2.ui.settings.viewmodel.FingerprintSettingsViewModel
@@ -142,7 +144,7 @@ class FingerprintSettingsV2Fragment :
       }
     }
 
-  override fun userLockout(authAttemptViewModel: FingerprintAuthAttemptViewModel.Error) {
+  override fun userLockout(authAttemptViewModel: FingerprintAuthAttemptModel.Error) {
     Toast.makeText(activity, authAttemptViewModel.message, Toast.LENGTH_SHORT).show()
   }
 
@@ -186,40 +188,46 @@ class FingerprintSettingsV2Fragment :
     val backgroundDispatcher = Dispatchers.IO
     val activity = requireActivity()
     val userHandle = activity.user.identifier
+    // Note that SUW should not be launching FingerprintSettings
+    val isAnySuw = Settings
+
+    val pressToAuthProvider = {
+      var toReturn: Int =
+        Secure.getIntForUser(
+          context.contentResolver,
+          Secure.SFPS_PERFORMANT_AUTH_ENABLED,
+          -1,
+          userHandle,
+        )
+      if (toReturn == -1) {
+        toReturn =
+          if (
+            context.resources.getBoolean(com.android.internal.R.bool.config_performantAuthDefault)
+          ) {
+            1
+          } else {
+            0
+          }
+        Secure.putIntForUser(
+          context.contentResolver,
+          Secure.SFPS_PERFORMANT_AUTH_ENABLED,
+          toReturn,
+          userHandle
+        )
+      }
+
+      toReturn == 1
+    }
 
     val interactor =
       FingerprintManagerInteractorImpl(
         context.applicationContext,
         backgroundDispatcher,
         fingerprintManager,
-        GatekeeperPasswordProvider(LockPatternUtils(context.applicationContext))
-      ) {
-        var toReturn: Int =
-          Secure.getIntForUser(
-            context.contentResolver,
-            Secure.SFPS_PERFORMANT_AUTH_ENABLED,
-            -1,
-            userHandle,
-          )
-        if (toReturn == -1) {
-          toReturn =
-            if (
-              context.resources.getBoolean(com.android.internal.R.bool.config_performantAuthDefault)
-            ) {
-              1
-            } else {
-              0
-            }
-          Secure.putIntForUser(
-            context.contentResolver,
-            Secure.SFPS_PERFORMANT_AUTH_ENABLED,
-            toReturn,
-            userHandle
-          )
-        }
-
-        toReturn == 1
-      }
+        GatekeeperPasswordProvider(LockPatternUtils(context.applicationContext)),
+        PressToAuthProviderImpl(context),
+        isAnySuw
+      )
 
     val token = intent.getByteArrayExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN)
     val challenge = intent.getLongExtra(BiometricEnrollBase.EXTRA_KEY_CHALLENGE, -1L)
@@ -292,18 +300,18 @@ class FingerprintSettingsV2Fragment :
   }
 
   /** Used to indicate that preference has been clicked */
-  fun onPrefClicked(fingerprintViewModel: FingerprintViewModel) {
+  fun onPrefClicked(fingerprintViewModel: FingerprintData) {
     Log.d(TAG, "onPrefClicked(${fingerprintViewModel})")
     settingsViewModel.onPrefClicked(fingerprintViewModel)
   }
 
   /** Used to indicate that a delete pref has been clicked */
-  fun onDeletePrefClicked(fingerprintViewModel: FingerprintViewModel) {
+  fun onDeletePrefClicked(fingerprintViewModel: FingerprintData) {
     Log.d(TAG, "onDeletePrefClicked(${fingerprintViewModel})")
     settingsViewModel.onDeleteClicked(fingerprintViewModel)
   }
 
-  override fun showSettings(enrolledFingerprints: List<FingerprintViewModel>) {
+  override fun showSettings(enrolledFingerprints: List<FingerprintData>) {
     val category =
       this@FingerprintSettingsV2Fragment.findPreference(KEY_FINGERPRINTS_ENROLLED_CATEGORY)
         as PreferenceCategory?
@@ -422,7 +430,7 @@ class FingerprintSettingsV2Fragment :
     }
   }
 
-  override suspend fun askUserToDeleteDialog(fingerprintViewModel: FingerprintViewModel): Boolean {
+  override suspend fun askUserToDeleteDialog(fingerprintViewModel: FingerprintData): Boolean {
     Log.d(TAG, "showing delete dialog for (${fingerprintViewModel})")
 
     try {
@@ -446,8 +454,8 @@ class FingerprintSettingsV2Fragment :
   }
 
   override suspend fun askUserToRenameDialog(
-    fingerprintViewModel: FingerprintViewModel
-  ): Pair<FingerprintViewModel, String>? {
+    fingerprintViewModel: FingerprintData
+  ): Pair<FingerprintData, String>? {
     Log.d(TAG, "showing rename dialog for (${fingerprintViewModel})")
     try {
       val toReturn =

src/com/android/settings/biometrics/fingerprint2/ui/settings/viewmodel/FingerprintSettingsViewModel.kt

@@ -22,8 +22,8 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewModelScope
 import com.android.settings.biometrics.fingerprint2.shared.domain.interactor.FingerprintManagerInteractor
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptViewModel
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintData
 import com.android.systemui.biometrics.shared.model.FingerprintSensorType
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.flow.Flow
@@ -53,11 +53,11 @@ class FingerprintSettingsViewModel(
   private val backgroundDispatcher: CoroutineDispatcher,
   private val navigationViewModel: FingerprintSettingsNavigationViewModel,
 ) : ViewModel() {
-  private val _enrolledFingerprints: MutableStateFlow<List<FingerprintViewModel>?> =
+  private val _enrolledFingerprints: MutableStateFlow<List<FingerprintData>?> =
     MutableStateFlow(null)
 
   /** Represents the stream of enrolled fingerprints. */
-  val enrolledFingerprints: Flow<List<FingerprintViewModel>> =
+  val enrolledFingerprints: Flow<List<FingerprintData>> =
     _enrolledFingerprints.asStateFlow().filterNotNull().filterOnlyWhenSettingsIsShown()
 
   /** Represents the stream of the information of "Add Fingerprint" preference. */
@@ -95,10 +95,10 @@ class FingerprintSettingsViewModel(
   private val _sensorNullOrEmpty: Flow<Boolean> =
     fingerprintManagerInteractor.sensorPropertiesInternal.map { it == null }
 
-  private val _isLockedOut: MutableStateFlow<FingerprintAuthAttemptViewModel.Error?> =
+  private val _isLockedOut: MutableStateFlow<FingerprintAuthAttemptModel.Error?> =
     MutableStateFlow(null)
 
-  private val _authSucceeded: MutableSharedFlow<FingerprintAuthAttemptViewModel.Success?> =
+  private val _authSucceeded: MutableSharedFlow<FingerprintAuthAttemptModel.Success?> =
     MutableSharedFlow()
 
   private val _attemptsSoFar: MutableStateFlow<Int> = MutableStateFlow(0)
@@ -164,7 +164,7 @@ class FingerprintSettingsViewModel(
       .distinctUntilChanged()
 
   /** Represents a consistent stream of authentication attempts. */
-  val authFlow: Flow<FingerprintAuthAttemptViewModel> =
+  val authFlow: Flow<FingerprintAuthAttemptModel> =
     canAuthenticate
       .transformLatest {
         try {
@@ -173,11 +173,11 @@ class FingerprintSettingsViewModel(
             Log.d(TAG, "canAuthenticate authing")
             attemptingAuth()
             when (val authAttempt = fingerprintManagerInteractor.authenticate()) {
-              is FingerprintAuthAttemptViewModel.Success -> {
+              is FingerprintAuthAttemptModel.Success -> {
                 onAuthSuccess(authAttempt)
                 emit(authAttempt)
               }
-              is FingerprintAuthAttemptViewModel.Error -> {
+              is FingerprintAuthAttemptModel.Error -> {
                 if (authAttempt.error == FingerprintManager.FINGERPRINT_ERROR_LOCKOUT) {
                   lockout(authAttempt)
                   emit(authAttempt)
@@ -219,7 +219,7 @@ class FingerprintSettingsViewModel(
   }
 
   /** The fingerprint delete button has been clicked. */
-  fun onDeleteClicked(fingerprintViewModel: FingerprintViewModel) {
+  fun onDeleteClicked(fingerprintViewModel: FingerprintData) {
     viewModelScope.launch {
       if (_isShowingDialog.value == null || navigationViewModel.nextStep.value != ShowSettings) {
         _isShowingDialog.tryEmit(PreferenceViewModel.DeleteDialog(fingerprintViewModel))
@@ -230,7 +230,7 @@ class FingerprintSettingsViewModel(
   }
 
   /** The rename fingerprint dialog has been clicked. */
-  fun onPrefClicked(fingerprintViewModel: FingerprintViewModel) {
+  fun onPrefClicked(fingerprintViewModel: FingerprintData) {
     viewModelScope.launch {
       if (_isShowingDialog.value == null || navigationViewModel.nextStep.value != ShowSettings) {
         _isShowingDialog.tryEmit(PreferenceViewModel.RenameDialog(fingerprintViewModel))
@@ -241,7 +241,7 @@ class FingerprintSettingsViewModel(
   }
 
   /** A request to delete a fingerprint */
-  fun deleteFingerprint(fp: FingerprintViewModel) {
+  fun deleteFingerprint(fp: FingerprintData) {
     viewModelScope.launch(backgroundDispatcher) {
       if (fingerprintManagerInteractor.removeFingerprint(fp)) {
         updateEnrolledFingerprints()
@@ -250,7 +250,7 @@ class FingerprintSettingsViewModel(
   }
 
   /** A request to rename a fingerprint */
-  fun renameFingerprint(fp: FingerprintViewModel, newName: String) {
+  fun renameFingerprint(fp: FingerprintData, newName: String) {
     viewModelScope.launch {
       fingerprintManagerInteractor.renameFingerprint(fp, newName)
       updateEnrolledFingerprints()
@@ -261,12 +261,12 @@ class FingerprintSettingsViewModel(
     _attemptsSoFar.update { it + 1 }
   }
 
-  private suspend fun onAuthSuccess(success: FingerprintAuthAttemptViewModel.Success) {
+  private suspend fun onAuthSuccess(success: FingerprintAuthAttemptModel.Success) {
     _authSucceeded.emit(success)
     _attemptsSoFar.update { 0 }
   }
 
-  private fun lockout(attemptViewModel: FingerprintAuthAttemptViewModel.Error) {
+  private fun lockout(attemptViewModel: FingerprintAuthAttemptModel.Error) {
     _isLockedOut.update { attemptViewModel }
   }
 

src/com/android/settings/biometrics/fingerprint2/ui/settings/viewmodel/PreferenceViewModel.kt

@@ -16,15 +16,15 @@
 
 package com.android.settings.biometrics.fingerprint2.ui.settings.viewmodel
 
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintData
 
 /** Classed use to represent a Dialogs state. */
 sealed class PreferenceViewModel {
   data class RenameDialog(
-    val fingerprintViewModel: FingerprintViewModel,
+      val fingerprintViewModel: FingerprintData,
   ) : PreferenceViewModel()
 
   data class DeleteDialog(
-    val fingerprintViewModel: FingerprintViewModel,
+      val fingerprintViewModel: FingerprintData,
   ) : PreferenceViewModel()
 }

tests/robotests/src/com/android/settings/biometrics/fingerprint2/fragment/FingerprintEnrollIntroFragmentTest.kt

@@ -33,12 +33,15 @@ import androidx.test.espresso.matcher.ViewMatchers.withId
 import androidx.test.espresso.matcher.ViewMatchers.withText
 import androidx.test.runner.AndroidJUnit4
 import com.android.settings.R
+import com.android.settings.biometrics.fingerprint2.shared.model.Default
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.fragment.FingerprintEnrollIntroV2Fragment
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollNavigationViewModel
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollViewModel
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintGatekeeperViewModel
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintScrollViewModel
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.GatekeeperInfo
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.Intro
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.NavState
 import com.android.settings.testutils2.FakeFingerprintManagerInteractor
 import com.google.android.setupdesign.GlifLayout
 import com.google.android.setupdesign.template.RequireScrollMixin
@@ -65,9 +68,12 @@ class FingerprintEnrollIntroFragmentTest {
       backgroundDispatcher,
       interactor,
       gatekeeperViewModel,
-      canSkipConfirm = true,
+      Intro,
+      NavState(true),
+      Default,
     )
-  private var fingerprintViewModel = FingerprintEnrollViewModel(interactor, backgroundDispatcher)
+  private var fingerprintViewModel =
+    FingerprintEnrollViewModel(interactor, gatekeeperViewModel, navigationViewModel)
   private var fingerprintScrollViewModel = FingerprintScrollViewModel()
 
   @Before

tests/shared/src/com/android/settings/testutils2/FakeFingerprintManagerInteractor.kt

@@ -18,9 +18,9 @@ package com.android.settings.testutils2
 
 import com.android.settings.biometrics.fingerprint2.shared.domain.interactor.FingerprintManagerInteractor
 import com.android.settings.biometrics.fingerprint2.shared.model.EnrollReason
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollStateViewModel
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptViewModel
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollState
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintData
 import com.android.systemui.biometrics.shared.model.FingerprintSensor
 import com.android.systemui.biometrics.shared.model.FingerprintSensorType
 import com.android.systemui.biometrics.shared.model.SensorStrength
@@ -32,10 +32,11 @@ import kotlinx.coroutines.flow.flowOf
 class FakeFingerprintManagerInteractor : FingerprintManagerInteractor {
 
   var enrollableFingerprints: Int = 5
-  var enrolledFingerprintsInternal: MutableList<FingerprintViewModel> = mutableListOf()
+  var enrolledFingerprintsInternal: MutableList<FingerprintData> = mutableListOf()
   var challengeToGenerate: Pair<Long, ByteArray> = Pair(-1L, byteArrayOf())
-  var authenticateAttempt = FingerprintAuthAttemptViewModel.Success(1)
-  val enrollStateViewModel = FingerEnrollStateViewModel.EnrollProgress(1)
+  var authenticateAttempt = FingerprintAuthAttemptModel.Success(1)
+  var enrollStateViewModel: List<FingerEnrollState> =
+    listOf(FingerEnrollState.EnrollProgress(5, 5))
   var pressToAuthEnabled = true
 
   var sensorProp =
@@ -46,7 +47,7 @@ class FakeFingerprintManagerInteractor : FingerprintManagerInteractor {
       FingerprintSensorType.POWER_BUTTON
     )
 
-  override suspend fun authenticate(): FingerprintAuthAttemptViewModel {
+  override suspend fun authenticate(): FingerprintAuthAttemptModel {
     return authenticateAttempt
   }
 
@@ -54,7 +55,7 @@ class FakeFingerprintManagerInteractor : FingerprintManagerInteractor {
     return challengeToGenerate
   }
 
-  override val enrolledFingerprints: Flow<List<FingerprintViewModel>> = flow {
+  override val enrolledFingerprints: Flow<List<FingerprintData>> = flow {
     emit(enrolledFingerprintsInternal)
   }
 
@@ -62,24 +63,22 @@ class FakeFingerprintManagerInteractor : FingerprintManagerInteractor {
     emit(enrolledFingerprintsInternal.size < enrollableFingerprints)
   }
 
-  override val sensorPropertiesInternal: Flow<FingerprintSensor?> = flow {
-    emit(sensorProp)
-  }
+  override val sensorPropertiesInternal: Flow<FingerprintSensor?> = flow { emit(sensorProp) }
 
   override val maxEnrollableFingerprints: Flow<Int> = flow { emit(enrollableFingerprints) }
 
   override suspend fun enroll(
     hardwareAuthToken: ByteArray?,
     enrollReason: EnrollReason
-  ): Flow<FingerEnrollStateViewModel> = flowOf(enrollStateViewModel)
+  ): Flow<FingerEnrollState> = flowOf(*enrollStateViewModel.toTypedArray())
 
-  override suspend fun removeFingerprint(fp: FingerprintViewModel): Boolean {
+  override suspend fun removeFingerprint(fp: FingerprintData): Boolean {
     return enrolledFingerprintsInternal.remove(fp)
   }
 
-  override suspend fun renameFingerprint(fp: FingerprintViewModel, newName: String) {
+  override suspend fun renameFingerprint(fp: FingerprintData, newName: String) {
     if (enrolledFingerprintsInternal.remove(fp)) {
-      enrolledFingerprintsInternal.add(FingerprintViewModel(newName, fp.fingerId, fp.deviceId))
+      enrolledFingerprintsInternal.add(FingerprintData(newName, fp.fingerId, fp.deviceId))
     }
   }
 

tests/unit/src/com/android/settings/fingerprint2/domain/interactor/FingerprintManagerInteractorTest.kt

@@ -26,12 +26,14 @@ import android.os.CancellationSignal
 import android.os.Handler
 import androidx.test.core.app.ApplicationProvider
 import com.android.settings.biometrics.GatekeeperPasswordProvider
-import com.android.settings.biometrics.fingerprint2.shared.domain.interactor.FingerprintManagerInteractor
 import com.android.settings.biometrics.fingerprint2.domain.interactor.FingerprintManagerInteractorImpl
+import com.android.settings.biometrics.fingerprint2.shared.data.repository.PressToAuthProvider
+import com.android.settings.biometrics.fingerprint2.shared.domain.interactor.FingerprintManagerInteractor
+import com.android.settings.biometrics.fingerprint2.shared.model.Default
 import com.android.settings.biometrics.fingerprint2.shared.model.EnrollReason
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptViewModel
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintViewModel
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollStateViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerEnrollState
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintData
 import com.android.settings.password.ChooseLockSettingsHelper
 import com.google.common.truth.Truth.assertThat
 import kotlinx.coroutines.cancelAndJoin
@@ -69,7 +71,11 @@ class FingerprintManagerInteractorTest {
   @Mock private lateinit var gateKeeperPasswordProvider: GatekeeperPasswordProvider
 
   private var testScope = TestScope(backgroundDispatcher)
-  private var pressToAuthProvider = { true }
+  private var pressToAuthProvider =
+    object : PressToAuthProvider {
+      override val isEnabled: Boolean
+        get() = false
+    }
 
   @Before
   fun setup() {
@@ -80,6 +86,7 @@ class FingerprintManagerInteractorTest {
         fingerprintManager,
         gateKeeperPasswordProvider,
         pressToAuthProvider,
+        Default,
       )
   }
 
@@ -164,7 +171,7 @@ class FingerprintManagerInteractorTest {
   @Test
   fun testRemoveFingerprint_succeeds() =
     testScope.runTest {
-      val fingerprintViewModelToRemove = FingerprintViewModel("Finger 2", 1, 2L)
+      val fingerprintViewModelToRemove = FingerprintData("Finger 2", 1, 2L)
       val fingerprintToRemove = Fingerprint("Finger 2", 1, 2L)
 
       val removalCallback: ArgumentCaptor<FingerprintManager.RemovalCallback> = argumentCaptor()
@@ -187,7 +194,7 @@ class FingerprintManagerInteractorTest {
   @Test
   fun testRemoveFingerprint_fails() =
     testScope.runTest {
-      val fingerprintViewModelToRemove = FingerprintViewModel("Finger 2", 1, 2L)
+      val fingerprintViewModelToRemove = FingerprintData("Finger 2", 1, 2L)
       val fingerprintToRemove = Fingerprint("Finger 2", 1, 2L)
 
       val removalCallback: ArgumentCaptor<FingerprintManager.RemovalCallback> = argumentCaptor()
@@ -214,7 +221,7 @@ class FingerprintManagerInteractorTest {
   @Test
   fun testRenameFingerprint_succeeds() =
     testScope.runTest {
-      val fingerprintToRename = FingerprintViewModel("Finger 2", 1, 2L)
+      val fingerprintToRename = FingerprintData("Finger 2", 1, 2L)
 
       underTest.renameFingerprint(fingerprintToRename, "Woo")
 
@@ -226,7 +233,7 @@ class FingerprintManagerInteractorTest {
     testScope.runTest {
       val fingerprint = Fingerprint("Woooo", 100, 101L)
 
-      var result: FingerprintAuthAttemptViewModel? = null
+      var result: FingerprintAuthAttemptModel? = null
       val job = launch { result = underTest.authenticate() }
 
       val authCallback: ArgumentCaptor<FingerprintManager.AuthenticationCallback> = argumentCaptor()
@@ -247,13 +254,13 @@ class FingerprintManagerInteractorTest {
 
       runCurrent()
       job.cancelAndJoin()
-      assertThat(result).isEqualTo(FingerprintAuthAttemptViewModel.Success(fingerprint.biometricId))
+      assertThat(result).isEqualTo(FingerprintAuthAttemptModel.Success(fingerprint.biometricId))
     }
 
   @Test
   fun testAuth_lockout() =
     testScope.runTest {
-      var result: FingerprintAuthAttemptViewModel? = null
+      var result: FingerprintAuthAttemptModel? = null
       val job = launch { result = underTest.authenticate() }
 
       val authCallback: ArgumentCaptor<FingerprintManager.AuthenticationCallback> = argumentCaptor()
@@ -274,7 +281,7 @@ class FingerprintManagerInteractorTest {
       job.cancelAndJoin()
       assertThat(result)
         .isEqualTo(
-          FingerprintAuthAttemptViewModel.Error(FINGERPRINT_ERROR_LOCKOUT_PERMANENT, "Lockout!!")
+          FingerprintAuthAttemptModel.Error(FINGERPRINT_ERROR_LOCKOUT_PERMANENT, "Lockout!!")
         )
     }
 
@@ -282,7 +289,7 @@ class FingerprintManagerInteractorTest {
   fun testEnroll_progress() =
     testScope.runTest {
       val token = byteArrayOf(5, 3, 2)
-      var result: FingerEnrollStateViewModel? = null
+      var result: FingerEnrollState? = null
       val job = launch { underTest.enroll(token, EnrollReason.FindSensor).collect { result = it } }
       val enrollCallback: ArgumentCaptor<FingerprintManager.EnrollmentCallback> = argumentCaptor()
       runCurrent()
@@ -299,14 +306,14 @@ class FingerprintManagerInteractorTest {
       runCurrent()
       job.cancelAndJoin()
 
-      assertThat(result).isEqualTo(FingerEnrollStateViewModel.EnrollProgress(1))
+      assertThat(result).isEqualTo(FingerEnrollState.EnrollProgress(1, 2))
     }
 
   @Test
   fun testEnroll_help() =
     testScope.runTest {
       val token = byteArrayOf(5, 3, 2)
-      var result: FingerEnrollStateViewModel? = null
+      var result: FingerEnrollState? = null
       val job = launch { underTest.enroll(token, EnrollReason.FindSensor).collect { result = it } }
       val enrollCallback: ArgumentCaptor<FingerprintManager.EnrollmentCallback> = argumentCaptor()
       runCurrent()
@@ -323,14 +330,14 @@ class FingerprintManagerInteractorTest {
       runCurrent()
       job.cancelAndJoin()
 
-      assertThat(result).isEqualTo(FingerEnrollStateViewModel.EnrollHelp(-1, "help"))
+      assertThat(result).isEqualTo(FingerEnrollState.EnrollHelp(-1, "help"))
     }
 
   @Test
   fun testEnroll_error() =
     testScope.runTest {
       val token = byteArrayOf(5, 3, 2)
-      var result: FingerEnrollStateViewModel? = null
+      var result: FingerEnrollState? = null
       val job = launch { underTest.enroll(token, EnrollReason.FindSensor).collect { result = it } }
       val enrollCallback: ArgumentCaptor<FingerprintManager.EnrollmentCallback> = argumentCaptor()
       runCurrent()
@@ -343,17 +350,20 @@ class FingerprintManagerInteractorTest {
           capture(enrollCallback),
           eq(FingerprintManager.ENROLL_FIND_SENSOR)
         )
-      enrollCallback.value.onEnrollmentError(-2, "error")
+      enrollCallback.value.onEnrollmentError(-1, "error")
       runCurrent()
       job.cancelAndJoin()
-
-      assertThat(result).isEqualTo(FingerEnrollStateViewModel.EnrollError(-2, "error"))
+      assertThat(result).isInstanceOf(FingerEnrollState.EnrollError::class.java)
     }
 
   private fun <T : Any> safeEq(value: T): T = eq(value) ?: value
+
   private fun <T> capture(argumentCaptor: ArgumentCaptor<T>): T = argumentCaptor.capture()
+
   private fun <T> any(type: Class<T>): T = Mockito.any<T>(type)
+
   private fun <T> whenever(methodCall: T): OngoingStubbing<T> = `when`(methodCall)
+
   inline fun <reified T : Any> argumentCaptor(): ArgumentCaptor<T> =
     ArgumentCaptor.forClass(T::class.java)
 }

tests/unit/src/com/android/settings/fingerprint2/enrollment/viewmodel/FingerprintEnrollFindSensorViewModelV2Test.kt

@@ -21,7 +21,9 @@ import android.content.res.Configuration
 import android.view.accessibility.AccessibilityManager
 import androidx.arch.core.executor.testing.InstantTaskExecutorRule
 import androidx.test.core.app.ApplicationProvider
+import com.android.settings.biometrics.fingerprint2.shared.model.Default
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.AccessibilityViewModel
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.BackgroundViewModel
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.Education
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollFindSensorViewModel
 import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollNavigationViewModel
@@ -70,6 +72,7 @@ class FingerprintEnrollFindSensorViewModelV2Test {
   private lateinit var foldStateViewModel: FoldStateViewModel
   private lateinit var orientationStateViewModel: OrientationStateViewModel
   private lateinit var underTest: FingerprintEnrollFindSensorViewModel
+  private lateinit var backgroundViewModel: BackgroundViewModel
   private val context: Context = ApplicationProvider.getApplicationContext()
   private val accessibilityManager: AccessibilityManager =
     context.getSystemService(AccessibilityManager::class.java)!!
@@ -93,12 +96,18 @@ class FingerprintEnrollFindSensorViewModelV2Test {
           fakeFingerprintManagerInteractor,
           gatekeeperViewModel,
           canSkipConfirm = true,
+          Default,
         )
         .create(FingerprintEnrollNavigationViewModel::class.java)
+
+    backgroundViewModel =
+      BackgroundViewModel.BackgroundViewModelFactory().create(BackgroundViewModel::class.java)
+    backgroundViewModel.inForeground()
     enrollViewModel =
       FingerprintEnrollViewModel.FingerprintEnrollViewModelFactory(
           fakeFingerprintManagerInteractor,
-          backgroundDispatcher
+          gatekeeperViewModel,
+          navigationViewModel,
         )
         .create(FingerprintEnrollViewModel::class.java)
     accessibilityViewModel =
@@ -114,6 +123,7 @@ class FingerprintEnrollFindSensorViewModelV2Test {
           navigationViewModel,
           enrollViewModel,
           gatekeeperViewModel,
+          backgroundViewModel,
           accessibilityViewModel,
           foldStateViewModel,
           orientationStateViewModel
@@ -123,6 +133,7 @@ class FingerprintEnrollFindSensorViewModelV2Test {
     // Navigate to Education page
     navigationViewModel.nextStep()
   }
+
   @After
   fun tearDown() {
     Dispatchers.resetMain()

tests/unit/src/com/android/settings/fingerprint2/ui/enrollment/modules/enrolling/rfps/viewmodel/RFPSIconTouchViewModelTest.kt

@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.fingerprint2.ui.enrollment.modules.enrolling.rfps.viewmodel
+
+import androidx.arch.core.executor.testing.InstantTaskExecutorRule
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.modules.enrolling.rfps.ui.viewmodel.RFPSIconTouchViewModel
+import com.google.common.truth.Truth.assertThat
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.test.StandardTestDispatcher
+import kotlinx.coroutines.test.TestScope
+import kotlinx.coroutines.test.resetMain
+import kotlinx.coroutines.test.runCurrent
+import kotlinx.coroutines.test.runTest
+import kotlinx.coroutines.test.setMain
+import org.junit.After
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.junit.MockitoJUnit
+import org.mockito.junit.MockitoJUnitRunner
+
+@RunWith(MockitoJUnitRunner::class)
+class RFPSIconTouchViewModelTest {
+  @JvmField @Rule var rule = MockitoJUnit.rule()
+
+  @get:Rule val instantTaskRule = InstantTaskExecutorRule()
+
+  private var backgroundDispatcher = StandardTestDispatcher()
+  private var testScope = TestScope(backgroundDispatcher)
+  private lateinit var rfpsIconTouchViewModel: RFPSIconTouchViewModel
+
+  @Before
+  fun setup() {
+    Dispatchers.setMain(backgroundDispatcher)
+    testScope = TestScope(backgroundDispatcher)
+    rfpsIconTouchViewModel =
+      RFPSIconTouchViewModel()
+  }
+
+  @After
+  fun tearDown() {
+    Dispatchers.resetMain()
+  }
+
+  @Test
+  fun initShouldNotShowDialog() =
+    testScope.runTest {
+      var shouldShowDialog = false
+
+      val job = launch { rfpsIconTouchViewModel.shouldShowDialog.collect { shouldShowDialog = it } }
+
+      runCurrent()
+
+      assertThat(shouldShowDialog).isFalse()
+      job.cancel()
+    }
+
+  @Test
+  fun shouldShowDialogTest() =
+    testScope.runTest {
+      var shouldShowDialog = false
+
+      val job = launch { rfpsIconTouchViewModel.shouldShowDialog.collect { shouldShowDialog = it } }
+
+      rfpsIconTouchViewModel.userTouchedFingerprintIcon()
+      rfpsIconTouchViewModel.userTouchedFingerprintIcon()
+      rfpsIconTouchViewModel.userTouchedFingerprintIcon()
+
+      runCurrent()
+
+      assertThat(shouldShowDialog).isTrue()
+      job.cancel()
+    }
+
+  @Test
+  fun stateShouldBeFalseAfterReset() =
+    testScope.runTest {
+      var shouldShowDialog = false
+
+      val job = launch { rfpsIconTouchViewModel.shouldShowDialog.collect { shouldShowDialog = it } }
+
+      rfpsIconTouchViewModel.userTouchedFingerprintIcon()
+      rfpsIconTouchViewModel.userTouchedFingerprintIcon()
+      rfpsIconTouchViewModel.userTouchedFingerprintIcon()
+
+      runCurrent()
+
+      assertThat(shouldShowDialog).isTrue()
+
+      rfpsIconTouchViewModel.userTouchedFingerprintIcon()
+      runCurrent()
+
+      assertThat(shouldShowDialog).isFalse()
+
+      job.cancel()
+    }
+
+  @Test
+  fun toggleMultipleTimes() =
+    testScope.runTest {
+      var shouldShowDialog = false
+
+      val job = launch { rfpsIconTouchViewModel.shouldShowDialog.collect { shouldShowDialog = it } }
+
+      rfpsIconTouchViewModel.userTouchedFingerprintIcon()
+      rfpsIconTouchViewModel.userTouchedFingerprintIcon()
+      rfpsIconTouchViewModel.userTouchedFingerprintIcon()
+
+      runCurrent()
+
+      assertThat(shouldShowDialog).isTrue()
+
+      rfpsIconTouchViewModel.userTouchedFingerprintIcon()
+      runCurrent()
+
+      assertThat(shouldShowDialog).isFalse()
+
+      rfpsIconTouchViewModel.userTouchedFingerprintIcon()
+      rfpsIconTouchViewModel.userTouchedFingerprintIcon()
+
+      runCurrent()
+      assertThat(shouldShowDialog).isTrue()
+
+      job.cancel()
+    }
+}

tests/unit/src/com/android/settings/fingerprint2/ui/enrollment/viewmodel/FingerprintEnrollEnrollingViewModelTest.kt

@@ -0,0 +1,153 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.fingerprint2.ui.enrollment.viewmodel
+
+import androidx.arch.core.executor.testing.InstantTaskExecutorRule
+import com.android.settings.biometrics.fingerprint2.shared.model.Default
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.BackgroundViewModel
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.Enrollment
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollEnrollingViewModel
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollNavigationViewModel
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintEnrollViewModel
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.FingerprintGatekeeperViewModel
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.GatekeeperInfo
+import com.android.settings.biometrics.fingerprint2.ui.enrollment.viewmodel.NavState
+import com.android.settings.testutils2.FakeFingerprintManagerInteractor
+import com.google.common.truth.Truth.assertThat
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.test.StandardTestDispatcher
+import kotlinx.coroutines.test.TestScope
+import kotlinx.coroutines.test.resetMain
+import kotlinx.coroutines.test.runCurrent
+import kotlinx.coroutines.test.runTest
+import kotlinx.coroutines.test.setMain
+import org.junit.After
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.junit.MockitoJUnit
+import org.mockito.junit.MockitoJUnitRunner
+
+@RunWith(MockitoJUnitRunner::class)
+class FingerprintEnrollEnrollingViewModelTest {
+  @JvmField @Rule var rule = MockitoJUnit.rule()
+
+  @get:Rule val instantTaskRule = InstantTaskExecutorRule()
+
+  private var backgroundDispatcher = StandardTestDispatcher()
+  private lateinit var enrollEnrollingViewModel: FingerprintEnrollEnrollingViewModel
+  private lateinit var backgroundViewModel: BackgroundViewModel
+  private lateinit var gateKeeperViewModel: FingerprintGatekeeperViewModel
+  private lateinit var navigationViewModel: FingerprintEnrollNavigationViewModel
+  private val defaultGatekeeperInfo = GatekeeperInfo.GatekeeperPasswordInfo(byteArrayOf(1, 3), 3)
+  private var testScope = TestScope(backgroundDispatcher)
+
+  private lateinit var fakeFingerprintManagerInteractor: FakeFingerprintManagerInteractor
+
+  private fun initialize(gatekeeperInfo: GatekeeperInfo = defaultGatekeeperInfo) {
+    fakeFingerprintManagerInteractor = FakeFingerprintManagerInteractor()
+    gateKeeperViewModel =
+      FingerprintGatekeeperViewModel.FingerprintGatekeeperViewModelFactory(
+          gatekeeperInfo,
+          fakeFingerprintManagerInteractor
+        )
+        .create(FingerprintGatekeeperViewModel::class.java)
+
+    navigationViewModel =
+      FingerprintEnrollNavigationViewModel(
+        backgroundDispatcher,
+        fakeFingerprintManagerInteractor,
+        gateKeeperViewModel,
+        Enrollment,
+        NavState(true),
+        Default,
+      )
+
+    backgroundViewModel =
+      BackgroundViewModel.BackgroundViewModelFactory().create(BackgroundViewModel::class.java)
+    backgroundViewModel.inForeground()
+    val fingerprintEnrollViewModel =
+      FingerprintEnrollViewModel.FingerprintEnrollViewModelFactory(
+          fakeFingerprintManagerInteractor,
+          gateKeeperViewModel,
+          navigationViewModel,
+        )
+        .create(FingerprintEnrollViewModel::class.java)
+    enrollEnrollingViewModel =
+      FingerprintEnrollEnrollingViewModel.FingerprintEnrollEnrollingViewModelFactory(
+          fingerprintEnrollViewModel,
+          backgroundViewModel,
+        )
+        .create(FingerprintEnrollEnrollingViewModel::class.java)
+  }
+
+  @Before
+  fun setup() {
+    Dispatchers.setMain(backgroundDispatcher)
+    initialize()
+  }
+
+  @After
+  fun tearDown() {
+    Dispatchers.resetMain()
+  }
+
+  @Test
+  fun testEnrollShouldBeFalse() =
+    testScope.runTest {
+      var shouldEnroll = false
+
+      val job = launch {
+        enrollEnrollingViewModel.enrollFlowShouldBeRunning.collect { shouldEnroll = it }
+      }
+
+      assertThat(shouldEnroll).isFalse()
+      runCurrent()
+
+      enrollEnrollingViewModel.canEnroll()
+      runCurrent()
+
+      assertThat(shouldEnroll).isTrue()
+      job.cancel()
+    }
+
+  @Test
+  fun testEnrollShouldBeFalseWhenBackground() =
+    testScope.runTest {
+      var shouldEnroll = false
+
+      val job = launch {
+        enrollEnrollingViewModel.enrollFlowShouldBeRunning.collect { shouldEnroll = it }
+      }
+
+      assertThat(shouldEnroll).isFalse()
+      runCurrent()
+
+      enrollEnrollingViewModel.canEnroll()
+      runCurrent()
+
+      assertThat(shouldEnroll).isTrue()
+
+      backgroundViewModel.wentToBackground()
+      runCurrent()
+      assertThat(shouldEnroll).isFalse()
+
+      job.cancel()
+    }
+}

tests/unit/src/com/android/settings/fingerprint2/ui/settings/FingerprintSettingsNavigationViewModelTest.kt

@@ -18,7 +18,7 @@ package com.android.settings.fingerprint2.ui.settings
 
 import androidx.arch.core.executor.testing.InstantTaskExecutorRule
 import com.android.settings.biometrics.BiometricEnrollBase
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintData
 import com.android.settings.biometrics.fingerprint2.ui.settings.viewmodel.EnrollFirstFingerprint
 import com.android.settings.biometrics.fingerprint2.ui.settings.viewmodel.FingerprintSettingsNavigationViewModel
 import com.android.settings.biometrics.fingerprint2.ui.settings.viewmodel.FinishSettings
@@ -208,7 +208,7 @@ class FingerprintSettingsNavigationViewModelTest {
   fun enrollAdditionalFingerprints_fails() =
     testScope.runTest {
       fakeFingerprintManagerInteractor.enrolledFingerprintsInternal =
-        mutableListOf(FingerprintViewModel("a", 1, 3L))
+        mutableListOf(FingerprintData("a", 1, 3L))
       fakeFingerprintManagerInteractor.challengeToGenerate = Pair(4L, byteArrayOf(3, 3, 1))
 
       var nextStep: NextStepViewModel? = null
@@ -227,7 +227,7 @@ class FingerprintSettingsNavigationViewModelTest {
   fun enrollAdditional_success() =
     testScope.runTest {
       fakeFingerprintManagerInteractor.enrolledFingerprintsInternal =
-        mutableListOf(FingerprintViewModel("a", 1, 3L))
+        mutableListOf(FingerprintData("a", 1, 3L))
 
       var nextStep: NextStepViewModel? = null
       val job = launch { underTest.nextStep.collect { nextStep = it } }
@@ -245,7 +245,7 @@ class FingerprintSettingsNavigationViewModelTest {
   fun confirmDeviceCredential_withEnrolledFingerprint_showsSettings() =
     testScope.runTest {
       fakeFingerprintManagerInteractor.enrolledFingerprintsInternal =
-        mutableListOf(FingerprintViewModel("a", 1, 3L))
+        mutableListOf(FingerprintData("a", 1, 3L))
       fakeFingerprintManagerInteractor.challengeToGenerate = Pair(10L, byteArrayOf(1, 2, 3))
 
       var nextStep: NextStepViewModel? = null
@@ -320,7 +320,7 @@ class FingerprintSettingsNavigationViewModelTest {
   fun showSettings_shouldFinish() =
     testScope.runTest {
       fakeFingerprintManagerInteractor.enrolledFingerprintsInternal =
-        mutableListOf(FingerprintViewModel("a", 1, 3L))
+        mutableListOf(FingerprintData("a", 1, 3L))
 
       var nextStep: NextStepViewModel? = null
       val job = launch { underTest.nextStep.collect { nextStep = it } }

tests/unit/src/com/android/settings/fingerprint2/ui/settings/FingerprintSettingsViewModelTest.kt

@@ -17,8 +17,8 @@
 package com.android.settings.fingerprint2.ui.settings
 
 import androidx.arch.core.executor.testing.InstantTaskExecutorRule
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptViewModel
-import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintViewModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintAuthAttemptModel
+import com.android.settings.biometrics.fingerprint2.shared.model.FingerprintData
 import com.android.settings.biometrics.fingerprint2.ui.settings.viewmodel.FingerprintSettingsNavigationViewModel
 import com.android.settings.biometrics.fingerprint2.ui.settings.viewmodel.FingerprintSettingsViewModel
 import com.android.settings.biometrics.fingerprint2.ui.settings.viewmodel.PreferenceViewModel
@@ -103,7 +103,7 @@ class FingerprintSettingsViewModelTest {
           FingerprintSensorType.UDFPS_OPTICAL,
         )
       fakeFingerprintManagerInteractor.enrolledFingerprintsInternal =
-        mutableListOf(FingerprintViewModel("a", 1, 3L))
+        mutableListOf(FingerprintData("a", 1, 3L))
 
       underTest =
         FingerprintSettingsViewModel.FingerprintSettingsViewModelFactory(
@@ -114,7 +114,7 @@ class FingerprintSettingsViewModelTest {
           )
           .create(FingerprintSettingsViewModel::class.java)
 
-      var authAttempt: FingerprintAuthAttemptViewModel? = null
+      var authAttempt: FingerprintAuthAttemptModel? = null
       val job = launch { underTest.authFlow.take(5).collectLatest { authAttempt = it } }
 
       underTest.shouldAuthenticate(true)
@@ -139,7 +139,7 @@ class FingerprintSettingsViewModelTest {
           FingerprintSensorType.UDFPS_ULTRASONIC,
         )
       fakeFingerprintManagerInteractor.enrolledFingerprintsInternal =
-        mutableListOf(FingerprintViewModel("a", 1, 3L))
+        mutableListOf(FingerprintData("a", 1, 3L))
 
       underTest =
         FingerprintSettingsViewModel.FingerprintSettingsViewModelFactory(
@@ -150,7 +150,7 @@ class FingerprintSettingsViewModelTest {
           )
           .create(FingerprintSettingsViewModel::class.java)
 
-      var authAttempt: FingerprintAuthAttemptViewModel? = null
+      var authAttempt: FingerprintAuthAttemptModel? = null
       val job = launch { underTest.authFlow.take(5).collectLatest { authAttempt = it } }
 
       underTest.shouldAuthenticate(true)
@@ -173,8 +173,8 @@ class FingerprintSettingsViewModelTest {
           FingerprintSensorType.POWER_BUTTON
         )
       fakeFingerprintManagerInteractor.enrolledFingerprintsInternal =
-        mutableListOf(FingerprintViewModel("a", 1, 3L))
-      val success = FingerprintAuthAttemptViewModel.Success(1)
+        mutableListOf(FingerprintData("a", 1, 3L))
+      val success = FingerprintAuthAttemptModel.Success(1)
       fakeFingerprintManagerInteractor.authenticateAttempt = success
 
       underTest =
@@ -186,7 +186,7 @@ class FingerprintSettingsViewModelTest {
           )
           .create(FingerprintSettingsViewModel::class.java)
 
-      var authAttempt: FingerprintAuthAttemptViewModel? = null
+      var authAttempt: FingerprintAuthAttemptModel? = null
 
       val job = launch { underTest.authFlow.take(5).collectLatest { authAttempt = it } }
       underTest.shouldAuthenticate(true)
@@ -200,7 +200,7 @@ class FingerprintSettingsViewModelTest {
 
   @Test
   fun deleteDialog_showAndDismiss() = runTest {
-    val fingerprintToDelete = FingerprintViewModel("A", 1, 10L)
+    val fingerprintToDelete = FingerprintData("A", 1, 10L)
     fakeFingerprintManagerInteractor.enrolledFingerprintsInternal =
       mutableListOf(fingerprintToDelete)
 
@@ -236,7 +236,7 @@ class FingerprintSettingsViewModelTest {
 
   @Test
   fun renameDialog_showAndDismiss() = runTest {
-    val fingerprintToRename = FingerprintViewModel("World", 1, 10L)
+    val fingerprintToRename = FingerprintData("World", 1, 10L)
     fakeFingerprintManagerInteractor.enrolledFingerprintsInternal =
       mutableListOf(fingerprintToRename)
 
@@ -274,7 +274,7 @@ class FingerprintSettingsViewModelTest {
 
   @Test
   fun testTwoDialogsCannotShow_atSameTime() = runTest {
-    val fingerprintToDelete = FingerprintViewModel("A", 1, 10L)
+    val fingerprintToDelete = FingerprintData("A", 1, 10L)
     fakeFingerprintManagerInteractor.enrolledFingerprintsInternal =
       mutableListOf(fingerprintToDelete)
 
@@ -311,9 +311,9 @@ class FingerprintSettingsViewModelTest {
   fun authenticatePauses_whenPaused() =
     testScope.runTest {
       val fingerprints = setupAuth()
-      val success = FingerprintAuthAttemptViewModel.Success(fingerprints.first().fingerId)
+      val success = FingerprintAuthAttemptModel.Success(fingerprints.first().fingerId)
 
-      var authAttempt: FingerprintAuthAttemptViewModel? = null
+      var authAttempt: FingerprintAuthAttemptModel? = null
 
       val job = launch { underTest.authFlow.take(5).collectLatest { authAttempt = it } }
 
@@ -325,7 +325,7 @@ class FingerprintSettingsViewModelTest {
       assertThat(authAttempt).isEqualTo(success)
 
       fakeFingerprintManagerInteractor.authenticateAttempt =
-        FingerprintAuthAttemptViewModel.Success(10)
+        FingerprintAuthAttemptModel.Success(10)
       underTest.shouldAuthenticate(false)
       advanceTimeBy(400)
       runCurrent()
@@ -340,7 +340,7 @@ class FingerprintSettingsViewModelTest {
     testScope.runTest {
       val fingerprints = setupAuth()
 
-      var authAttempt: FingerprintAuthAttemptViewModel? = null
+      var authAttempt: FingerprintAuthAttemptModel? = null
       val job = launch { underTest.authFlow.take(1).collectLatest { authAttempt = it } }
       underTest.shouldAuthenticate(true)
       navigationViewModel.onConfirmDevice(true, 10L)
@@ -357,7 +357,7 @@ class FingerprintSettingsViewModelTest {
     testScope.runTest {
       val fingerprints = setupAuth()
 
-      var authAttempt: FingerprintAuthAttemptViewModel? = null
+      var authAttempt: FingerprintAuthAttemptModel? = null
       val job = launch { underTest.authFlow.take(1).collectLatest { authAttempt = it } }
       underTest.shouldAuthenticate(true)
       navigationViewModel.onConfirmDevice(true, 10L)
@@ -370,7 +370,7 @@ class FingerprintSettingsViewModelTest {
       assertThat(authAttempt).isEqualTo(null)
     }
 
-  private fun setupAuth(): MutableList<FingerprintViewModel> {
+  private fun setupAuth(): MutableList<FingerprintData> {
     fakeFingerprintManagerInteractor.sensorProp =
       FingerprintSensor(
         0 /* sensorId */,
@@ -379,9 +379,9 @@ class FingerprintSettingsViewModelTest {
         FingerprintSensorType.POWER_BUTTON
       )
     val fingerprints =
-      mutableListOf(FingerprintViewModel("a", 1, 3L), FingerprintViewModel("b", 2, 5L))
+      mutableListOf(FingerprintData("a", 1, 3L), FingerprintData("b", 2, 5L))
     fakeFingerprintManagerInteractor.enrolledFingerprintsInternal = fingerprints
-    val success = FingerprintAuthAttemptViewModel.Success(1)
+    val success = FingerprintAuthAttemptModel.Success(1)
     fakeFingerprintManagerInteractor.authenticateAttempt = success
 
     underTest =