Merge changes I13495cad,I3a44c4c4,I15bff230,I8a492866,Ia7ffe34a

* changes:
  [Pair hearing devices] Add pair hearing device functionality
  [Pair hearing devices] Extract common behavior in BluetoothPairingDetail into Base class
  [Pair hearing devices] Add "Hearing devices" to show connected hearing devices
  [Pair hearing devices] Add "Saved devices" to show bonded but not connected hearing devices
  [Audio routing] Setup basic structure for audio routing page

src/com/android/settings/accessibility/AccessibilityHearingAidPreferenceController.java

@@ -29,7 +29,6 @@ import android.content.IntentFilter;
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.util.FeatureFlagUtils;
-import android.util.Log;
 
 import androidx.annotation.VisibleForTesting;
 import androidx.fragment.app.FragmentManager;
@@ -55,8 +54,6 @@ import com.android.settingslib.core.lifecycle.events.OnStop;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Set;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.FutureTask;
 import java.util.stream.Collectors;
 
 /**
@@ -84,7 +81,8 @@ public class AccessibilityHearingAidPreferenceController extends BasePreferenceC
 
     public AccessibilityHearingAidPreferenceController(Context context, String preferenceKey) {
         super(context, preferenceKey);
-        mLocalBluetoothManager = getLocalBluetoothManager();
+        mLocalBluetoothManager = com.android.settings.bluetooth.Utils.getLocalBluetoothManager(
+                context);
         mProfileManager = mLocalBluetoothManager.getProfileManager();
         mCachedDeviceManager = mLocalBluetoothManager.getCachedDeviceManager();
         mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
@@ -269,19 +267,6 @@ public class AccessibilityHearingAidPreferenceController extends BasePreferenceC
         return false;
     }
 
-    private LocalBluetoothManager getLocalBluetoothManager() {
-        final FutureTask<LocalBluetoothManager> localBtManagerFutureTask = new FutureTask<>(
-                // Avoid StrictMode ThreadPolicy violation
-                () -> com.android.settings.bluetooth.Utils.getLocalBtManager(mContext));
-        try {
-            localBtManagerFutureTask.run();
-            return localBtManagerFutureTask.get();
-        } catch (InterruptedException | ExecutionException e) {
-            Log.w(TAG, "Error getting LocalBluetoothManager.", e);
-            return null;
-        }
-    }
-
     @VisibleForTesting(otherwise = VisibleForTesting.NONE)
     void setPreference(Preference preference) {
         mHearingAidPreference = preference;

src/com/android/settings/accessibility/AccessibilityHearingAidsFragment.java

@@ -19,6 +19,7 @@ package com.android.settings.accessibility;
 import static android.os.UserManager.DISALLOW_CONFIG_BLUETOOTH;
 
 import android.content.ComponentName;
+import android.content.Context;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -44,6 +45,13 @@ public class AccessibilityHearingAidsFragment extends AccessibilityShortcutPrefe
         super(DISALLOW_CONFIG_BLUETOOTH);
     }
 
+    @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+        use(AvailableHearingDevicePreferenceController.class).init(this);
+        use(SavedHearingDevicePreferenceController.class).init(this);
+    }
+
     @Override
     public void onCreate(Bundle savedInstanceState) {
         mFeatureName = getContext().getString(R.string.accessibility_hearingaid_title);

src/com/android/settings/accessibility/AvailableHearingDevicePreferenceController.java

@@ -0,0 +1,109 @@
+/*
+ * 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.bluetooth.BluetoothProfile;
+import android.content.Context;
+
+import androidx.fragment.app.FragmentManager;
+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.bluetooth.BluetoothCallback;
+import com.android.settingslib.bluetooth.CachedBluetoothDevice;
+import com.android.settingslib.bluetooth.LocalBluetoothManager;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+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
+ * connected hearing devices, including ASHA and HAP profile.
+ * Parent class {@link BaseBluetoothDevicePreferenceController} will use
+ * {@link DevicePreferenceCallback} to add/remove {@link Preference}.
+ */
+public class AvailableHearingDevicePreferenceController extends
+        BaseBluetoothDevicePreferenceController implements LifecycleObserver, OnStart, OnStop,
+        BluetoothCallback {
+
+    private static final String TAG = "AvailableHearingDevicePreferenceController";
+
+    private BluetoothDeviceUpdater mAvailableHearingDeviceUpdater;
+    private final LocalBluetoothManager mLocalBluetoothManager;
+    private FragmentManager mFragmentManager;
+
+    public AvailableHearingDevicePreferenceController(Context context,
+            String preferenceKey) {
+        super(context, preferenceKey);
+        mLocalBluetoothManager = com.android.settings.bluetooth.Utils.getLocalBluetoothManager(
+                context);
+    }
+
+    /**
+     * 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 (mAvailableHearingDeviceUpdater != null) {
+            throw new IllegalStateException("Should not call init() more than 1 time.");
+        }
+        mAvailableHearingDeviceUpdater = new AvailableHearingDeviceUpdater(fragment.getContext(),
+                this, fragment.getMetricsCategory());
+        mFragmentManager = fragment.getParentFragmentManager();
+    }
+
+    @Override
+    public void onStart() {
+        mAvailableHearingDeviceUpdater.registerCallback();
+        mAvailableHearingDeviceUpdater.refreshPreference();
+        mLocalBluetoothManager.getEventManager().registerCallback(this);
+    }
+
+    @Override
+    public void onStop() {
+        mAvailableHearingDeviceUpdater.unregisterCallback();
+        mLocalBluetoothManager.getEventManager().unregisterCallback(this);
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+
+        if (isAvailable()) {
+            final Context context = screen.getContext();
+            mAvailableHearingDeviceUpdater.setPrefContext(context);
+            mAvailableHearingDeviceUpdater.forceUpdate();
+        }
+    }
+
+    @Override
+    public void onActiveDeviceChanged(CachedBluetoothDevice activeDevice, int bluetoothProfile) {
+        if (activeDevice == null) {
+            return;
+        }
+
+        if (bluetoothProfile == BluetoothProfile.HEARING_AID) {
+            HearingAidUtils.launchHearingAidPairingDialog(mFragmentManager, activeDevice);
+        }
+    }
+}

src/com/android/settings/accessibility/AvailableHearingDeviceUpdater.java

@@ -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.accessibility;
+
+import android.bluetooth.BluetoothDevice;
+import android.content.Context;
+
+import com.android.settings.bluetooth.AvailableMediaBluetoothDeviceUpdater;
+import com.android.settings.connecteddevice.DevicePreferenceCallback;
+import com.android.settingslib.bluetooth.CachedBluetoothDevice;
+
+/**
+ * Maintains and updates connected hearing devices, including ASHA and HAP profile.
+ */
+public class AvailableHearingDeviceUpdater extends AvailableMediaBluetoothDeviceUpdater {
+
+    private static final String PREF_KEY = "connected_hearing_device";
+
+    public AvailableHearingDeviceUpdater(Context context,
+            DevicePreferenceCallback devicePreferenceCallback, int metricsCategory) {
+        super(context, devicePreferenceCallback, metricsCategory);
+    }
+
+    @Override
+    public boolean isFilterMatched(CachedBluetoothDevice cachedDevice) {
+        final BluetoothDevice device = cachedDevice.getDevice();
+        final boolean isConnectedHearingAidDevice = (cachedDevice.isConnectedHearingAidDevice()
+                && (device.getBondState() == BluetoothDevice.BOND_BONDED));
+
+        return isConnectedHearingAidDevice && isDeviceInCachedDevicesList(cachedDevice);
+    }
+
+    @Override
+    protected String getPreferenceKey() {
+        return PREF_KEY;
+    }
+}

src/com/android/settings/accessibility/BaseBluetoothDevicePreferenceController.java

@@ -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.accessibility;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.connecteddevice.DevicePreferenceCallback;
+import com.android.settings.core.BasePreferenceController;
+
+/**
+ * Abstract base class for bluetooth preference controller to handle UI logic, e.g. availability
+ * status, preference added, and preference removed.
+ */
+public abstract class BaseBluetoothDevicePreferenceController extends BasePreferenceController
+        implements DevicePreferenceCallback {
+
+    private PreferenceCategory mPreferenceCategory;
+
+    public BaseBluetoothDevicePreferenceController(Context context,
+            String preferenceKey) {
+        super(context, preferenceKey);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return (mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH))
+                ? AVAILABLE
+                : CONDITIONALLY_UNAVAILABLE;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+
+        mPreferenceCategory = screen.findPreference(getPreferenceKey());
+        mPreferenceCategory.setVisible(false);
+    }
+
+    @Override
+    public void onDeviceAdded(Preference preference) {
+        if (mPreferenceCategory.getPreferenceCount() == 0) {
+            mPreferenceCategory.setVisible(true);
+        }
+        mPreferenceCategory.addPreference(preference);
+    }
+
+    @Override
+    public void onDeviceRemoved(Preference preference) {
+        mPreferenceCategory.removePreference(preference);
+        if (mPreferenceCategory.getPreferenceCount() == 0) {
+            mPreferenceCategory.setVisible(false);
+        }
+    }
+}

src/com/android/settings/accessibility/HearingDevicePairingDetail.java

@@ -0,0 +1,82 @@
+/*
+ * 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.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothUuid;
+import android.bluetooth.le.ScanFilter;
+
+import androidx.annotation.VisibleForTesting;
+
+import com.android.settings.R;
+import com.android.settings.bluetooth.BluetoothDevicePairingDetailBase;
+import com.android.settingslib.bluetooth.CachedBluetoothDevice;
+
+import java.util.Collections;
+
+/**
+ * HearingDevicePairingDetail is a page to scan hearing devices. This page shows scanning icons and
+ * pairing them.
+ */
+public class HearingDevicePairingDetail extends BluetoothDevicePairingDetailBase {
+
+    private static final String TAG = "HearingDevicePairingDetail";
+    @VisibleForTesting
+    static final String KEY_AVAILABLE_HEARING_DEVICES = "available_hearing_devices";
+
+    public HearingDevicePairingDetail() {
+        super();
+        final ScanFilter filter = new ScanFilter.Builder()
+                .setServiceData(BluetoothUuid.HEARING_AID, new byte[]{0}, new byte[]{0})
+                .build();
+        setFilter(Collections.singletonList(filter));
+    }
+
+    @Override
+    public void onStart() {
+        super.onStart();
+        mAvailableDevicesCategory.setProgress(mBluetoothAdapter.isEnabled());
+    }
+
+    @Override
+    public void onDeviceBondStateChanged(CachedBluetoothDevice cachedDevice, int bondState) {
+        super.onDeviceBondStateChanged(cachedDevice, bondState);
+
+        mAvailableDevicesCategory.setProgress(bondState == BluetoothDevice.BOND_NONE);
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        // TODO(b/262839191): To be updated settings_enums.proto
+        return 0;
+    }
+
+    @Override
+    protected int getPreferenceScreenResId() {
+        return R.xml.hearing_device_pairing_detail;
+    }
+
+    @Override
+    protected String getLogTag() {
+        return TAG;
+    }
+
+    @Override
+    public String getDeviceListKey() {
+        return KEY_AVAILABLE_HEARING_DEVICES;
+    }
+}

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();
+        }
+    }
+}

src/com/android/settings/accessibility/SavedHearingDeviceUpdater.java

@@ -0,0 +1,53 @@
+/*
+ * 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.bluetooth.BluetoothDevice;
+import android.content.Context;
+
+import com.android.settings.bluetooth.SavedBluetoothDeviceUpdater;
+import com.android.settings.connecteddevice.DevicePreferenceCallback;
+import com.android.settingslib.bluetooth.CachedBluetoothDevice;
+
+/**
+ * Maintains and updates saved (bonded but not connected) hearing devices, including ASHA and HAP
+ * profile.
+ */
+public class SavedHearingDeviceUpdater extends SavedBluetoothDeviceUpdater {
+
+    private static final String PREF_KEY = "saved_hearing_device";
+
+    public SavedHearingDeviceUpdater(Context context,
+            DevicePreferenceCallback devicePreferenceCallback, int metricsCategory) {
+        super(context, devicePreferenceCallback, /* showConnectedDevice= */ false, metricsCategory);
+    }
+
+    @Override
+    public boolean isFilterMatched(CachedBluetoothDevice cachedDevice) {
+        final BluetoothDevice device = cachedDevice.getDevice();
+        final boolean isSavedHearingAidDevice = cachedDevice.isHearingAidDevice()
+                && device.getBondState() == BluetoothDevice.BOND_BONDED
+                && !device.isConnected();
+
+        return isSavedHearingAidDevice && isDeviceInCachedDevicesList(cachedDevice);
+    }
+
+    @Override
+    protected String getPreferenceKey() {
+        return PREF_KEY;
+    }
+}