| /* |
| * Copyright (C) 2016 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.systemui.volume.car; |
| |
| import android.car.Car; |
| import android.car.CarNotConnectedException; |
| import android.car.media.CarAudioManager; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.ServiceConnection; |
| import android.os.IBinder; |
| import android.util.Log; |
| |
| import com.android.systemui.volume.VolumeDialogControllerImpl; |
| |
| /** |
| * A volume dialog controller for the automotive use case. |
| * |
| * {@link android.car.media.CarAudioManager} is the source of truth to get the stream volumes. |
| * And volume changes should be sent to the car's audio module instead of the android's audio mixer. |
| */ |
| public class CarVolumeDialogController extends VolumeDialogControllerImpl { |
| private static final String TAG = "CarVolumeDialogController"; |
| |
| private final Car mCar; |
| private CarAudioManager mCarAudioManager; |
| |
| private final ServiceConnection mConnection = new ServiceConnection() { |
| @Override |
| public void onServiceConnected(ComponentName componentName, IBinder iBinder) { |
| try { |
| mCarAudioManager = (CarAudioManager) mCar.getCarManager(Car.AUDIO_SERVICE); |
| setVolumeController(); |
| CarVolumeDialogController.this.getState(); |
| } catch (CarNotConnectedException e) { |
| Log.e(TAG, "Car is not connected!", e); |
| } |
| } |
| |
| @Override |
| public void onServiceDisconnected(ComponentName componentName) { |
| Log.e(TAG, "Car service is disconnected"); |
| } |
| }; |
| |
| public CarVolumeDialogController(Context context) { |
| super(context); |
| mCar = Car.createCar(context, mConnection); |
| mCar.connect(); |
| } |
| |
| @Override |
| protected void setAudioManagerStreamVolume(int stream, int level, int flag) { |
| if (mCarAudioManager == null) { |
| Log.d(TAG, "Car audio manager is not initialized yet"); |
| return; |
| } |
| try { |
| mCarAudioManager.setStreamVolume(stream, level, flag); |
| } catch (CarNotConnectedException e) { |
| Log.e(TAG, "Car is not connected", e); |
| } |
| } |
| |
| @Override |
| protected int getAudioManagerStreamVolume(int stream) { |
| if(mCarAudioManager == null) { |
| Log.d(TAG, "Car audio manager is not initialized yet"); |
| return 0; |
| } |
| |
| try { |
| return mCarAudioManager.getStreamVolume(stream); |
| } catch (CarNotConnectedException e) { |
| Log.e(TAG, "Car is not connected", e); |
| return 0; |
| } |
| } |
| |
| @Override |
| protected int getAudioManagerStreamMaxVolume(int stream) { |
| if(mCarAudioManager == null) { |
| Log.d(TAG, "Car audio manager is not initialized yet"); |
| return 0; |
| } |
| |
| try { |
| return mCarAudioManager.getStreamMaxVolume(stream); |
| } catch (CarNotConnectedException e) { |
| Log.e(TAG, "Car is not connected", e); |
| return 0; |
| } |
| } |
| |
| @Override |
| protected int getAudioManagerStreamMinVolume(int stream) { |
| if(mCarAudioManager == null) { |
| Log.d(TAG, "Car audio manager is not initialized yet"); |
| return 0; |
| } |
| |
| try { |
| return mCarAudioManager.getStreamMinVolume(stream); |
| } catch (CarNotConnectedException e) { |
| Log.e(TAG, "Car is not connected", e); |
| return 0; |
| } |
| } |
| |
| @Override |
| public void setVolumeController() { |
| if (mCarAudioManager == null) { |
| Log.d(TAG, "Car audio manager is not initialized yet"); |
| return; |
| } |
| try { |
| mCarAudioManager.setVolumeController(mVolumeController); |
| } catch (CarNotConnectedException e) { |
| Log.e(TAG, "Car is not connected", e); |
| } |
| } |
| } |