Show split screen dialog on the introduction and enrolling page.

Revert ag/22361082 and ag/22460413, show the split screen dialog on
the introduction and enrolling page, instead of relying on the callers
to show the dialog.

Test: atest BiometricsSplitScreenDialogTest
Test: atest FaceEnrollIntroductionTest
Test: atest SetupFingerprintEnrollIntroductionTest
Bug: 299573056

Change-Id: Ieb106a4a623ad5ca0e6eb1633413df75767bef52

tests/robotests/src/com/android/settings/biometrics/BiometricsSplitScreenDialogTest.java

@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2024 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;
+
+import static android.hardware.biometrics.BiometricAuthenticator.TYPE_FACE;
+import static android.hardware.biometrics.BiometricAuthenticator.TYPE_FINGERPRINT;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.DialogInterface;
+import android.hardware.biometrics.BiometricAuthenticator;
+import android.os.Looper;
+import android.widget.Button;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.fragment.app.FragmentActivity;
+
+import com.android.settings.R;
+import com.android.settings.testutils.shadow.ShadowAlertDialogCompat;
+
+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.MockitoRule;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.Shadows;
+import org.robolectric.annotation.Config;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(shadows = ShadowAlertDialogCompat.class)
+public class BiometricsSplitScreenDialogTest {
+    @Rule
+    public final MockitoRule mocks = MockitoJUnit.rule();
+    private FragmentActivity mActivity;
+    private BiometricsSplitScreenDialog mFragment;
+
+    @Before
+    public void setUp() {
+        ShadowAlertDialogCompat.reset();
+        mActivity = Robolectric.buildActivity(FragmentActivity.class).setup().get();
+    }
+
+    @After
+    public void tearDown() {
+        ShadowAlertDialogCompat.reset();
+    }
+
+    @Test
+    public void testTexts_face() {
+        final AlertDialog dialog = setUpFragment(TYPE_FACE, false /*destroyActivity*/);
+
+        final ShadowAlertDialogCompat shadowAlertDialog = ShadowAlertDialogCompat.shadowOf(dialog);
+        assertThat(shadowAlertDialog.getTitle().toString()).isEqualTo(
+                mActivity.getString(R.string.biometric_settings_add_face_in_split_mode_title));
+        assertThat(shadowAlertDialog.getMessage().toString()).isEqualTo(
+                mActivity.getString(R.string.biometric_settings_add_face_in_split_mode_message));
+    }
+
+    @Test
+    public void testTexts_fingerprint() {
+        final AlertDialog dialog = setUpFragment(TYPE_FINGERPRINT, false /*destroyActivity*/);
+
+        final ShadowAlertDialogCompat shadowAlertDialog = ShadowAlertDialogCompat.shadowOf(dialog);
+        assertThat(shadowAlertDialog.getTitle().toString()).isEqualTo(
+                mActivity.getString(
+                        R.string.biometric_settings_add_fingerprint_in_split_mode_title));
+        assertThat(shadowAlertDialog.getMessage().toString()).isEqualTo(
+                mActivity.getString(
+                        R.string.biometric_settings_add_fingerprint_in_split_mode_message));
+    }
+
+    @Test
+    public void testButton_destroyActivity() {
+        final AlertDialog dialog = setUpFragment(TYPE_FACE, true /*destroyActivity*/);
+        final Button button = dialog.getButton(DialogInterface.BUTTON_POSITIVE);
+
+        assertThat(button).isNotNull();
+        button.performClick();
+        Shadows.shadowOf(Looper.getMainLooper()).idle();
+
+        assertThat(dialog.isShowing()).isFalse();
+        assertThat(mActivity.isFinishing()).isTrue();
+    }
+
+    @Test
+    public void testButton_notDestroyActivity() {
+        final AlertDialog dialog = setUpFragment(TYPE_FACE, false /*destroyActivity*/);
+        final Button button = dialog.getButton(DialogInterface.BUTTON_POSITIVE);
+
+        assertThat(button).isNotNull();
+        button.performClick();
+        Shadows.shadowOf(Looper.getMainLooper()).idle();
+
+        assertThat(dialog.isShowing()).isFalse();
+        assertThat(mActivity.isFinishing()).isFalse();
+    }
+
+    private AlertDialog setUpFragment(
+            @BiometricAuthenticator.Modality int biometricsModality, boolean destroyActivity) {
+        mFragment = BiometricsSplitScreenDialog.newInstance(biometricsModality, destroyActivity);
+        mFragment.show(mActivity.getSupportFragmentManager(), null);
+        Shadows.shadowOf(Looper.getMainLooper()).idle();
+
+        final AlertDialog dialog = ShadowAlertDialogCompat.getLatestAlertDialog();
+        assertThat(dialog).isNotNull();
+        return dialog;
+    }
+}

tests/robotests/src/com/android/settings/biometrics/combination/CombinedBiometricProfileSettingsTest.java

@@ -16,8 +16,6 @@
 
 package com.android.settings.biometrics.combination;
 
-import static android.hardware.fingerprint.FingerprintSensorProperties.TYPE_UDFPS_OPTICAL;
-
 import static com.android.settings.biometrics.combination.BiometricsSettingsBase.CONFIRM_REQUEST;
 import static com.android.settings.password.ChooseLockPattern.RESULT_FINISHED;
 
@@ -26,7 +24,6 @@ import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.anyLong;
-import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.doThrow;
@@ -37,11 +34,8 @@ import static org.mockito.Mockito.verify;
 
 import android.content.Context;
 import android.content.Intent;
-import android.hardware.biometrics.ComponentInfoInternal;
-import android.hardware.biometrics.SensorProperties;
 import android.hardware.face.FaceManager;
 import android.hardware.fingerprint.FingerprintManager;
-import android.hardware.fingerprint.FingerprintSensorPropertiesInternal;
 import android.os.Bundle;
 import android.util.AndroidRuntimeException;
 import android.view.LayoutInflater;
@@ -52,15 +46,12 @@ import androidx.annotation.NonNull;
 import androidx.annotation.XmlRes;
 import androidx.fragment.app.FragmentActivity;
 import androidx.fragment.app.FragmentManager;
-import androidx.fragment.app.FragmentTransaction;
 import androidx.preference.Preference;
 import androidx.preference.PreferenceManager;
 import androidx.preference.PreferenceScreen;
 import androidx.test.core.app.ApplicationProvider;
 
 import com.android.settings.R;
-import com.android.settings.biometrics.BiometricStatusPreferenceController;
-import com.android.settings.biometrics.BiometricsSplitScreenDialog;
 import com.android.settings.biometrics.face.FaceStatusPreferenceController;
 import com.android.settings.biometrics.fingerprint.FingerprintStatusPreferenceController;
 import com.android.settings.password.ChooseLockSettingsHelper;
@@ -72,7 +63,6 @@ import com.android.settingslib.core.AbstractPreferenceController;
 
 import org.junit.After;
 import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -112,8 +102,6 @@ public class CombinedBiometricProfileSettingsTest {
     private FaceStatusPreferenceController mFaceStatusPreferenceController;
     @Mock
     private FaceManager mFaceManager;
-    @Mock
-    private FragmentTransaction mFragmentTransaction;
 
     @Before
     public void setUp() {
@@ -350,133 +338,6 @@ public class CombinedBiometricProfileSettingsTest {
         assertThat(capturedPreferences.get(0).getKey()).isEqualTo(mFragment.getFacePreferenceKey());
     }
 
-    @Test
-    public void testClickFingerprintUnlock_inMultiWindow_withoutEnrolledFp_showsDialog() {
-        testClickFingerprintUnlock(true /* isInMultiWindow */, false /* hasEnrolledFingerprint */);
-        verifyShowsDialogAfterClickingUnlock(mFragment.getFingerprintPreferenceKey());
-    }
-
-    @Test
-    public void testClickFingerprintUnlock_inMultiWindow_withEnrolledFp_noDialog() {
-        testClickFingerprintUnlock(true /* isInMultiWindow */, true /* hasEnrolledFingerprint */);
-        verifyNoDialogAfterClickingUnlock(mFragment.getFingerprintPreferenceKey());
-    }
-
-    @Test
-    public void testClickFingerprintUnlock_inFullScreen_withoutEnrolledFp_noDialog() {
-        testClickFingerprintUnlock(false /* isInMultiWindow */, false /* hasEnrolledFingerprint */);
-        verifyNoDialogAfterClickingUnlock(mFragment.getFingerprintPreferenceKey());
-    }
-
-    private void testClickFingerprintUnlock(boolean isInMultiWindow,
-            boolean hasEnrolledFingerprint) {
-        final ArrayList<FingerprintSensorPropertiesInternal> props = new ArrayList<>();
-        props.add(new FingerprintSensorPropertiesInternal(
-                0 /* sensorId */,
-                SensorProperties.STRENGTH_STRONG,
-                1 /* maxEnrollmentsPerUser */,
-                new ArrayList<ComponentInfoInternal>(),
-                TYPE_UDFPS_OPTICAL,
-                true /* resetLockoutRequiresHardwareAuthToken */));
-        doReturn(props).when(mFingerprintManager).getSensorPropertiesInternal();
-
-        doAnswer(invocation -> {
-            final FingerprintManager.GenerateChallengeCallback callback =
-                    invocation.getArgument(1);
-            callback.onChallengeGenerated(0, 0, 1L);
-            return null;
-        }).when(mFingerprintManager).generateChallenge(anyInt(), any());
-        doReturn(new byte[]{1}).when(mFragment).requestGatekeeperHat(any(), anyLong(), anyInt(),
-                anyLong());
-        FragmentManager fragmentManager = mock(FragmentManager.class);
-        doReturn(fragmentManager).when(mActivity).getSupportFragmentManager();
-        doReturn(mFragmentTransaction).when(fragmentManager).beginTransaction();
-        doReturn(isInMultiWindow).when(mActivity).isInMultiWindowMode();
-        doReturn(hasEnrolledFingerprint).when(mFingerprintManager).hasEnrolledFingerprints(
-                anyInt());
-
-        // Start fragment
-        mFragment.onAttach(mContext);
-        mFragment.onCreate(null);
-        mFragment.onCreateView(LayoutInflater.from(mContext), mock(ViewGroup.class), Bundle.EMPTY);
-        mFragment.onResume();
-
-        // User clicks on "Fingerprint Unlock"
-        final Preference preference = new Preference(mContext);
-        preference.setKey(mFragment.getFingerprintPreferenceKey());
-        mFragment.onPreferenceTreeClick(preference);
-    }
-
-    @Test
-    @Ignore("b/295325503")
-    public void testClickFaceUnlock_inMultiWindow_withoutEnrolledFp_showsDialog() {
-        testClickFaceUnlock(true /* isInMultiWindow */, false /*hasEnrolledFace*/);
-        verifyShowsDialogAfterClickingUnlock(mFragment.getFacePreferenceKey());
-    }
-
-    @Test
-    public void testClickFaceUnlock_inMultiWindow_withEnrolledFp_noDialog() {
-        testClickFaceUnlock(true /* isInMultiWindow */, true /* hasEnrolledFace */);
-        verifyNoDialogAfterClickingUnlock(mFragment.getFacePreferenceKey());
-    }
-
-    @Test
-    public void testClickFaceUnlock_inFullScreen_withoutEnrolledFp_noDialog() {
-        testClickFaceUnlock(false /* isInMultiWindow */ , false /* hasEnrolledFace */);
-        verifyNoDialogAfterClickingUnlock(mFragment.getFacePreferenceKey());
-    }
-
-    private void testClickFaceUnlock(boolean isInMultiWindow, boolean hasEnrolledFace) {
-        doAnswer(invocation -> {
-            final FaceManager.GenerateChallengeCallback callback =
-                    invocation.getArgument(1);
-            callback.onGenerateChallengeResult(0, 0, 1L);
-            return null;
-        }).when(mFaceManager).generateChallenge(anyInt(), any());
-        doReturn(new byte[] { 1 }).when(mFragment).requestGatekeeperHat(any(), anyLong(), anyInt(),
-                anyLong());
-        FragmentManager fragmentManager = mock(FragmentManager.class);
-        doReturn(fragmentManager).when(mActivity).getSupportFragmentManager();
-        doReturn(mFragmentTransaction).when(fragmentManager).beginTransaction();
-        doReturn(isInMultiWindow).when(mActivity).isInMultiWindowMode();
-        doReturn(hasEnrolledFace).when(mFaceManager).hasEnrolledTemplates(
-                anyInt());
-
-        // Start fragment
-        mFragment.onAttach(mContext);
-        mFragment.onCreate(null);
-        mFragment.onCreateView(LayoutInflater.from(mContext), mock(ViewGroup.class), Bundle.EMPTY);
-        mFragment.onResume();
-
-        // User clicks on "Face Unlock"
-        final Preference preference = new Preference(mContext);
-        preference.setKey(mFragment.getFacePreferenceKey());
-        mFragment.onPreferenceTreeClick(preference);
-    }
-
-    private void verifyNoDialogAfterClickingUnlock(String preferenceKey) {
-        final BiometricStatusPreferenceController controller =
-                preferenceKey.equals(mFragment.getFacePreferenceKey())
-                        ? mFaceStatusPreferenceController
-                        : mFingerprintStatusPreferenceController;
-        verify(controller).handlePreferenceTreeClick(mPreferenceCaptor.capture());
-        List<Preference> capturedPreferences = mPreferenceCaptor.getAllValues();
-        assertThat(capturedPreferences).hasSize(1);
-        assertThat(capturedPreferences.get(0).getKey()).isEqualTo(preferenceKey);
-        verify(mFragmentTransaction, never()).add(any(),
-                eq(BiometricsSplitScreenDialog.class.getName()));
-    }
-
-    private void verifyShowsDialogAfterClickingUnlock(String preferenceKey) {
-        final BiometricStatusPreferenceController controller =
-                preferenceKey.equals(mFragment.getFacePreferenceKey())
-                        ? mFaceStatusPreferenceController
-                        : mFingerprintStatusPreferenceController;
-        verify(controller, never()).handlePreferenceTreeClick(any());
-        verify(mFragmentTransaction).add(any(),
-                eq(BiometricsSplitScreenDialog.class.getName()));
-    }
-
     @Test
     public void testNoCrashIfDetachActivityDuringGeneratingChallengeThroughFaceManager() {
         doAnswer(invocation -> {

tests/robotests/src/com/android/settings/biometrics/face/FaceEnrollIntroductionTest.java

@@ -38,6 +38,7 @@ import static org.mockito.Mockito.when;
 
 import android.app.Activity;
 import android.content.Context;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.res.Configuration;
 import android.content.res.Resources;
@@ -46,12 +47,15 @@ import android.hardware.face.FaceManager;
 import android.hardware.face.FaceSensorProperties;
 import android.hardware.face.FaceSensorPropertiesInternal;
 import android.hardware.face.IFaceAuthenticatorsRegisteredCallback;
+import android.os.Looper;
 import android.os.UserHandle;
 import android.view.View;
+import android.widget.Button;
 import android.widget.TextView;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
 import androidx.test.core.app.ApplicationProvider;
 
 import com.android.internal.widget.LockPatternUtils;
@@ -62,6 +66,7 @@ import com.android.settings.biometrics.BiometricUtils;
 import com.android.settings.password.ChooseLockSettingsHelper;
 import com.android.settings.testutils.FakeFeatureFactory;
 import com.android.settings.testutils.shadow.SettingsShadowResources;
+import com.android.settings.testutils.shadow.ShadowAlertDialogCompat;
 import com.android.settings.testutils.shadow.ShadowDevicePolicyManager;
 import com.android.settings.testutils.shadow.ShadowLockPatternUtils;
 import com.android.settings.testutils.shadow.ShadowSensorPrivacyManager;
@@ -101,7 +106,8 @@ import java.util.List;
         ShadowUtils.class,
         ShadowDevicePolicyManager.class,
         ShadowSensorPrivacyManager.class,
-        SettingsShadowResources.class
+        SettingsShadowResources.class,
+        ShadowAlertDialogCompat.class
 })
 public class FaceEnrollIntroductionTest {
 
@@ -123,8 +129,8 @@ public class FaceEnrollIntroductionTest {
     enum GateKeeperAction {CALL_SUPER, RETURN_BYTE_ARRAY, THROW_CREDENTIAL_NOT_MATCH}
 
     public static class TestFaceEnrollIntroduction extends FaceEnrollIntroduction {
-
         private int mRecreateCount = 0;
+        public boolean mIsMultiWindowMode;
 
         public int getRecreateCount() {
             return mRecreateCount;
@@ -161,6 +167,11 @@ public class FaceEnrollIntroductionTest {
         protected boolean launchPostureGuidance() {
             return super.launchPostureGuidance();
         }
+
+        @Override
+        public boolean isInMultiWindowMode() {
+            return mIsMultiWindowMode;
+        }
     }
 
     @Before
@@ -178,6 +189,7 @@ public class FaceEnrollIntroductionTest {
     public void tearDown() {
         ShadowUtils.reset();
         ShadowLockPatternUtils.reset();
+        ShadowAlertDialogCompat.reset();
     }
 
     private void setupActivity() {
@@ -596,4 +608,37 @@ public class FaceEnrollIntroductionTest {
         assertThat(result).isEqualTo(0);
     }
 
+    @Test
+    public void multiWindow_showsDialog() {
+        mController = Robolectric.buildActivity(TestFaceEnrollIntroduction.class);
+        mActivity  = (TestFaceEnrollIntroduction) mController.get();
+        mActivity.mIsMultiWindowMode = true;
+        mController.setup().get();
+
+        Shadows.shadowOf(Looper.getMainLooper()).idle();
+        final AlertDialog dialog = ShadowAlertDialogCompat.getLatestAlertDialog();
+        assertThat(dialog).isNotNull();
+
+        final ShadowAlertDialogCompat shadowAlertDialog = ShadowAlertDialogCompat.shadowOf(dialog);
+        assertThat(shadowAlertDialog.getTitle().toString()).isEqualTo(
+                mActivity.getString(R.string.biometric_settings_add_face_in_split_mode_title));
+        assertThat(shadowAlertDialog.getMessage().toString()).isEqualTo(
+                mActivity.getString(R.string.biometric_settings_add_face_in_split_mode_message));
+
+        final Button button = dialog.getButton(DialogInterface.BUTTON_POSITIVE);
+        assertThat(button).isNotNull();
+        button.performClick();
+        Shadows.shadowOf(Looper.getMainLooper()).idle();
+        assertThat(dialog.isShowing()).isFalse();
+        assertThat(mActivity.isFinishing()).isTrue();
+    }
+
+    @Test
+    public void singleWindow_noDialog() {
+        Robolectric.buildActivity(TestFaceEnrollIntroduction.class).setup().get();
+        Shadows.shadowOf(Looper.getMainLooper()).idle();
+
+        final AlertDialog dialog = ShadowAlertDialogCompat.getLatestAlertDialog();
+        assertThat(dialog).isNull();
+    }
 }

tests/robotests/src/com/android/settings/biometrics/fingerprint/FingerprintSettingsFragmentTest.java

@@ -20,9 +20,7 @@ import static android.hardware.fingerprint.FingerprintSensorProperties.TYPE_POWE
 import static android.hardware.fingerprint.FingerprintSensorProperties.TYPE_UDFPS_OPTICAL;
 
 import static com.android.settings.biometrics.fingerprint.FingerprintSettings.FingerprintSettingsFragment;
-import static com.android.settings.biometrics.fingerprint.FingerprintSettings.FingerprintSettingsFragment.ADD_FINGERPRINT_REQUEST;
 import static com.android.settings.biometrics.fingerprint.FingerprintSettings.FingerprintSettingsFragment.CHOOSE_LOCK_GENERIC_REQUEST;
-import static com.android.settings.biometrics.fingerprint.FingerprintSettings.FingerprintSettingsFragment.KEY_FINGERPRINT_ADD;
 import static com.android.settings.biometrics.fingerprint.FingerprintSettings.FingerprintSettingsFragment.KEY_REQUIRE_SCREEN_ON_TO_AUTH;
 
 import static com.google.common.truth.Truth.assertThat;
@@ -34,9 +32,7 @@ import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doNothing;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.spy;
-import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 
 import android.content.Context;
@@ -57,10 +53,8 @@ import android.view.ViewGroup;
 import androidx.fragment.app.FragmentActivity;
 import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentTransaction;
-import androidx.preference.Preference;
 import androidx.test.core.app.ApplicationProvider;
 
-import com.android.settings.biometrics.BiometricsSplitScreenDialog;
 import com.android.settings.password.ChooseLockSettingsHelper;
 import com.android.settings.testutils.FakeFeatureFactory;
 import com.android.settings.testutils.shadow.ShadowFragment;
@@ -132,35 +126,6 @@ public class FingerprintSettingsFragmentTest {
         ShadowUtils.reset();
     }
 
-    @Test
-    public void testAddFingerprint_inFullScreen_noDialog() {
-        setUpFragment(false);
-        // Click "Add Fingerprint"
-        final Preference preference = new Preference(mContext);
-        preference.setKey(KEY_FINGERPRINT_ADD);
-        mFragment.onPreferenceTreeClick(preference);
-
-        verify(mFragment).startActivityForResult(any(), eq(ADD_FINGERPRINT_REQUEST));
-        verify(mFragmentTransaction, never()).add(any(),
-                eq(BiometricsSplitScreenDialog.class.getName()));
-
-    }
-
-    @Test
-    public void testAddFingerprint_inMultiWindow_showsDialog() {
-        setUpFragment(false);
-
-        doReturn(true).when(mActivity).isInMultiWindowMode();
-
-        // Click "Add Fingerprint"
-        final Preference preference = new Preference(mContext);
-        preference.setKey(KEY_FINGERPRINT_ADD);
-        mFragment.onPreferenceTreeClick(preference);
-
-        verify(mFragment, times(0)).startActivityForResult(any(), eq(ADD_FINGERPRINT_REQUEST));
-        verify(mFragmentTransaction).add(any(), eq(BiometricsSplitScreenDialog.class.getName()));
-    }
-
     @Test
     public void testChooseLockKeyForFingerprint() {
         setUpFragment(true);

tests/robotests/src/com/android/settings/biometrics/fingerprint/SetupFingerprintEnrollIntroductionTest.java

@@ -21,6 +21,7 @@ import static com.google.common.truth.Truth.assertWithMessage;
 
 import static org.robolectric.RuntimeEnvironment.application;
 
+import android.app.Activity;
 import android.app.KeyguardManager;
 import android.content.Intent;
 import android.content.pm.PackageManager;
@@ -28,14 +29,18 @@ import android.hardware.biometrics.ComponentInfoInternal;
 import android.hardware.biometrics.SensorProperties;
 import android.hardware.fingerprint.FingerprintSensorProperties;
 import android.hardware.fingerprint.FingerprintSensorPropertiesInternal;
+import android.os.Looper;
 import android.view.View;
 import android.widget.Button;
 
+import androidx.appcompat.app.AlertDialog;
+
 import com.android.settings.R;
 import com.android.settings.biometrics.BiometricEnrollBase;
 import com.android.settings.biometrics.BiometricEnrollIntroduction;
 import com.android.settings.password.SetupSkipDialog;
 import com.android.settings.testutils.FakeFeatureFactory;
+import com.android.settings.testutils.shadow.ShadowAlertDialogCompat;
 import com.android.settings.testutils.shadow.ShadowFingerprintManager;
 import com.android.settings.testutils.shadow.ShadowLockPatternUtils;
 import com.android.settings.testutils.shadow.ShadowStorageManager;
@@ -66,12 +71,23 @@ import java.util.List;
     ShadowFingerprintManager.class,
     ShadowLockPatternUtils.class,
     ShadowStorageManager.class,
-    ShadowUserManager.class
+    ShadowUserManager.class,
+    ShadowAlertDialogCompat.class
 })
 public class SetupFingerprintEnrollIntroductionTest {
 
     private ActivityController<SetupFingerprintEnrollIntroduction> mController;
 
+    public static class TestSetupFingerprintEnrollIntroductionInMultiWindowMode
+            extends SetupFingerprintEnrollIntroduction {
+        public boolean mIsMultiWindowMode = true;
+
+        @Override
+        public boolean isInMultiWindowMode() {
+            return mIsMultiWindowMode;
+        }
+    }
+
     @Before
     public void setUp() {
         Shadows.shadowOf(application.getPackageManager())
@@ -105,6 +121,36 @@ public class SetupFingerprintEnrollIntroductionTest {
     @After
     public void tearDown() {
         ShadowStorageManager.reset();
+        ShadowAlertDialogCompat.reset();
+    }
+
+    @Test
+    public void multiWindow_showsDialog() {
+        Activity activity = Robolectric.buildActivity(
+                TestSetupFingerprintEnrollIntroductionInMultiWindowMode.class).setup().get();
+        Shadows.shadowOf(Looper.getMainLooper()).idle();
+        final AlertDialog dialog = ShadowAlertDialogCompat.getLatestAlertDialog();
+        assertThat(dialog).isNotNull();
+
+        final ShadowAlertDialogCompat shadowAlertDialog = ShadowAlertDialogCompat.shadowOf(dialog);
+        assertThat(shadowAlertDialog.getTitle().toString()).isEqualTo(
+                activity.getString(
+                        R.string.biometric_settings_add_fingerprint_in_split_mode_title));
+        assertThat(shadowAlertDialog.getMessage().toString()).isEqualTo(
+                activity.getString(
+                        R.string.biometric_settings_add_fingerprint_in_split_mode_message));
+
+        // TODO(b/299573056): Make WizardManagerHelper.isAnySetupWizard(getIntent()) correct and
+        //  test button click not finishing the activity.
+    }
+
+    @Test
+    public void singleWindow_noDialog() {
+        Robolectric.buildActivity(SetupFingerprintEnrollIntroduction.class).setup().get();
+        Shadows.shadowOf(Looper.getMainLooper()).idle();
+
+        final AlertDialog dialog = ShadowAlertDialogCompat.getLatestAlertDialog();
+        assertThat(dialog).isNull();
     }
 
     @Test