[Pair hearing devices] Add "Saved devices" to show bonded but not connected hearing devices

* BaseHearingDevicePreferenceController will also be used in "Hearing devices", so extract to parent class first. Bug: 237625815 Test: make RunSettingsRoboTests ROBOTEST_FILTER="(SavedHearingDeviceUpdaterTest|BaseBluetoothDevicePreferenceControllerTest|BluetoothDeviceUpdaterTest|AvailableMediaBluetoothDeviceUpdaterTest|ConnectedBluetoothDeviceUpdaterTest|SavedBluetoothDeviceUpdaterTest)" Change-Id: I8a492866f48e3a664b9ff78bce5a4f082c0dc465
2022-12-30 03:11:48 +08:00
parent 48d56420ce
commit c1fb0ae240
20 changed files with 573 additions and 66 deletions
--- a/src/com/android/settings/accessibility/SavedHearingDevicePreferenceController.java
+++ b/src/com/android/settings/accessibility/SavedHearingDevicePreferenceController.java
@@ -0,0 +1,89 @@
+/*
+ * 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.accessibility;
+
+import android.content.Context;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.bluetooth.BluetoothDeviceUpdater;
+import com.android.settings.connecteddevice.DevicePreferenceCallback;
+import com.android.settings.dashboard.DashboardFragment;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnResume;
+import com.android.settingslib.core.lifecycle.events.OnStart;
+import com.android.settingslib.core.lifecycle.events.OnStop;
+
+/**
+ * Controller to update the {@link androidx.preference.PreferenceCategory} for all
+ * saved ((bonded but not connected)) hearing devices, including ASHA and HAP profile.
+ * Parent class {@link BaseBluetoothDevicePreferenceController} will use
+ * {@link DevicePreferenceCallback} to add/remove {@link Preference}.
+ */
+public class SavedHearingDevicePreferenceController extends
+        BaseBluetoothDevicePreferenceController implements LifecycleObserver, OnStart, OnResume,
+        OnStop {
+
+    private BluetoothDeviceUpdater mSavedHearingDeviceUpdater;
+
+    public SavedHearingDevicePreferenceController(Context context,
+            String preferenceKey) {
+        super(context, preferenceKey);
+    }
+
+    /**
+     * Initializes objects in this controller. Need to call this before onStart().
+     *
+     * <p>Should not call this more than 1 time.
+     *
+     * @param fragment The {@link DashboardFragment} uses the controller.
+     */
+    public void init(DashboardFragment fragment) {
+        if (mSavedHearingDeviceUpdater != null) {
+            throw new IllegalStateException("Should not call init() more than 1 time.");
+        }
+        mSavedHearingDeviceUpdater = new SavedHearingDeviceUpdater(fragment.getContext(), this,
+                fragment.getMetricsCategory());
+    }
+
+    @Override
+    public void onStart() {
+        mSavedHearingDeviceUpdater.registerCallback();
+    }
+
+    @Override
+    public void onResume() {
+        mSavedHearingDeviceUpdater.refreshPreference();
+    }
+
+    @Override
+    public void onStop() {
+        mSavedHearingDeviceUpdater.unregisterCallback();
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+
+        if (isAvailable()) {
+            final Context context = screen.getContext();
+            mSavedHearingDeviceUpdater.setPrefContext(context);
+            mSavedHearingDeviceUpdater.forceUpdate();
+        }
+    }
+}