Add handoff activity to parental consent flow.

Bug: 188847063
Test: manual
Change-Id: Ib6f38aae487a536fb8e85d608a22378a17c1bc64

src/com/android/settings/biometrics/BiometricHandoffActivity.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2021 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 android.app.settings.SettingsEnums;
+import android.os.Bundle;
+import android.view.View;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import com.android.settings.R;
+
+import com.google.android.setupcompat.template.FooterBarMixin;
+import com.google.android.setupcompat.template.FooterButton;
+import com.google.android.setupdesign.GlifLayout;
+
+/**
+ * Prompts the user to hand the device to their parent or guardian.
+ */
+public class BiometricHandoffActivity extends BiometricEnrollBase {
+
+    @Nullable
+    private FooterButton mPrimaryFooterButton;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.biometric_handoff);
+
+        setHeaderText(R.string.biometric_settings_hand_back_to_guardian);
+
+        final GlifLayout layout = getLayout();
+        mFooterBarMixin = layout.getMixin(FooterBarMixin.class);
+        mFooterBarMixin.setPrimaryButton(getPrimaryFooterButton());
+    }
+
+    @NonNull
+    protected FooterButton getPrimaryFooterButton() {
+        if (mPrimaryFooterButton == null) {
+            mPrimaryFooterButton = new FooterButton.Builder(this)
+                    .setText(R.string.biometric_settings_hand_back_to_guardian_ok)
+                    .setButtonType(FooterButton.ButtonType.NEXT)
+                    .setListener(this::onNextButtonClick)
+                    .setTheme(R.style.SudGlifButton_Primary)
+                    .build();
+        }
+        return mPrimaryFooterButton;
+    }
+
+    @Override
+    protected void onNextButtonClick(View view) {
+        setResult(RESULT_OK);
+        finish();
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        // TODO (b/188847063): add new category
+        return SettingsEnums.BIOMETRIC_ENROLL_ACTIVITY;
+    }
+}