| /* |
| * Copyright (C) 2019 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.media; |
| |
| import android.bluetooth.BluetoothProfile; |
| import android.content.Context; |
| import android.net.Uri; |
| import android.util.Log; |
| |
| import com.android.settings.bluetooth.Utils; |
| import com.android.settings.slices.SliceBackgroundWorker; |
| import com.android.settingslib.bluetooth.BluetoothCallback; |
| import com.android.settingslib.bluetooth.CachedBluetoothDevice; |
| import com.android.settingslib.bluetooth.LocalBluetoothManager; |
| |
| import java.io.IOException; |
| |
| /** |
| * Listener for background change from {@code BluetoothCallback} to update media output indicator. |
| */ |
| public class MediaOutputIndicatorWorker extends SliceBackgroundWorker implements BluetoothCallback { |
| |
| private static final String TAG = "MediaOutputIndicatorWorker"; |
| |
| private LocalBluetoothManager mLocalBluetoothManager; |
| |
| public MediaOutputIndicatorWorker(Context context, Uri uri) { |
| super(context, uri); |
| } |
| |
| @Override |
| protected void onSlicePinned() { |
| mLocalBluetoothManager = Utils.getLocalBtManager(getContext()); |
| if (mLocalBluetoothManager == null) { |
| Log.e(TAG, "Bluetooth is not supported on this device"); |
| return; |
| } |
| mLocalBluetoothManager.getEventManager().registerCallback(this); |
| } |
| |
| @Override |
| protected void onSliceUnpinned() { |
| if (mLocalBluetoothManager == null) { |
| Log.e(TAG, "Bluetooth is not supported on this device"); |
| return; |
| } |
| mLocalBluetoothManager.getEventManager().unregisterCallback(this); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| mLocalBluetoothManager = null; |
| } |
| |
| @Override |
| public void onBluetoothStateChanged(int bluetoothState) { |
| // To handle the case that Bluetooth on and no connected devices |
| notifySliceChange(); |
| } |
| |
| @Override |
| public void onActiveDeviceChanged(CachedBluetoothDevice activeDevice, int bluetoothProfile) { |
| if (bluetoothProfile == BluetoothProfile.A2DP) { |
| notifySliceChange(); |
| } |
| } |
| |
| @Override |
| public void onAudioModeChanged() { |
| notifySliceChange(); |
| } |
| } |