耳机监听

项目中有监听耳有监听耳机使用时长的需求 ,根据需求首先要判断是否有耳机连接,耳机又分为了有线耳机和无线耳机两种 ,所以只要解决了耳机插拔的监听, 在插入耳机时开始计时, 耳机拔掉后停止计时 ,并且随时可以判断当前是否有耳机连接,问题就基本解决了

• 自定义耳机监听广播

public abstract class HeadsetReceiver extends BroadcastReceiver {
  
    private boolean mIsRegistered = false;s
    private Context mContext;

    public synchronized void register(Context context) {
        if (mIsRegistered) {
            return;
        }
        mIsRegistered = true;
        mContext = context;
        registeUserPresentReceiver();
    }

    public void registeUserPresentReceiver() {
        IntentFilter filter = new IntentFilter();
        //检测是否插入耳机
        filter.addAction(Intent.ACTION_HEADSET_PLUG);//有线耳机
        filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);//蓝牙状态变化
        filter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);//蓝牙链接
        filter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED);//断开
        filter.addAction("android.media.VOLUME_CHANGED_ACTION");//音量变化
        mContext.registerReceiver(this, filter);
    }

    public synchronized void unregister() {
        if (!mIsRegistered) {
            return;
        }
        mIsRegistered = false;

        mContext.unregisterReceiver(this);
        mContext = null;
    }

    protected abstract void onPackageChanged(Intent intent);

    @Override
    public final void onReceive(Context context, Intent intent) {
        onPackageChanged(intent);
    }
}

• 注册广播

 headsetReceiver.register(context);

• 接受到广播后处理

 private HeadsetReceiver headsetReceiver = new HeadsetReceiver() {
        @Override
        protected void onPackageChanged(Intent intent) {
            if (intent == null) {
                Log.w(TAG, "onReceive, input intent is null !!!");
                return;
            }
            String action = intent.getAction();
            if (action == null || action.isEmpty()) {
                Log.w(TAG, "onReceive, action is null or empty !!!");
                return;
            }
            Log.d(TAG, "onReceive, action=" + action);
       if (intent.getAction().equals(Intent.ACTION_HEADSET_PLUG)) {
            if (intent.getIntExtra("state", 0) == 0) {
                //外放
            } else if (intent.getIntExtra("state", 0) == 1) {
                //耳机
            }
        } else if (intent.getAction().equals(BluetoothDevice.ACTION_ACL_CONNECTED)) {
            //蓝牙耳机连接
        } else if (intent.getAction().equals(BluetoothDevice.ACTION_ACL_DISCONNECTED)) {
            //蓝牙耳机拔出
        } else if (intent.getAction().equals("android.media.VOLUME_CHANGED_ACTION")) {
            //声音变化监听
        }
        }
    };

2. 判断耳机时是否连接工具类

public boolean getHeadSetStatus() {
        boolean headSetStatus = false;
        AudioManager audioManager = (AudioManager)    context.getSystemService(Context.AUDIO_SERVICE); // 获取声音管理器
        if (audioManager.isWiredHeadsetOn()) { // 有线耳机是否连接
            headSetStatus = true;
        }
        BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); // 蓝牙耳机
        if (bluetoothAdapter != null) {
            if (bluetoothAdapter.isEnabled()) {
                int a2dp = bluetoothAdapter.getProfileConnectionState(BluetoothProfile.A2DP); // 可操控蓝牙设备，如带播放暂停功能的蓝牙耳机
                int headset = bluetoothAdapter.getProfileConnectionState(BluetoothProfile.HEADSET); // 蓝牙头戴式耳机，支持语音输入输出
                //int health = bluetoothAdapter.getProfileConnectionState(BluetoothProfile.HEALTH); // 蓝牙穿戴式设备
                // 查看是否蓝牙是否连接到三种设备的一种，以此来判断是否处于连接状态还是打开并没有连接的状态
                if (a2dp == BluetoothProfile.STATE_CONNECTED) {
                    headSetStatus = true;
                } else if (headset == BluetoothProfile.STATE_CONNECTED) {
                    headSetStatus = true;
                }
            }
        }
        return headSetStatus ;
    }

• 常见输出设备标识