参考：/mu399/article/details/38516039
程序加载时获取有线耳机状态：
AudioManager audoManager = (AudioManager)getSystemService(Context.AUDIO_SERVICE);mContext = getApplicationContext();mContext.registerReceiver(mReceiver, makeFilter());if(audoManager.isWiredHeadsetOn()){Toast.makeText(MainActivity.this,"耳机ok",Toast.LENGTH_SHORT).show();}else{Toast.makeText(MainActivity.this,"耳机不ok",Toast.LENGTH_SHORT).show();}
程序加载时获取蓝牙耳机与有限耳机的状态：
public int getheadsetStatsu(){AudioManager audoManager = (AudioManager)getSystemService(Context.AUDIO_SERVICE);//IntentFilter iFilter = new IntentFilter(Intent.ACTION_HEADSET_PLUG);//Intent iStatus = registerReceiver(null, iFilter);//boolean isConnected = iStatus.getIntExtra("state", 0) == 1;////if(isConnected){// Toast.makeText(MainActivity.this,"耳机ok",Toast.LENGTH_SHORT).show();//}if(audoManager.isWiredHeadsetOn()){return 1;}else{Toast.makeText(MainActivity.this,"耳机不ok",Toast.LENGTH_SHORT).show();}ba = BluetoothAdapter.getDefaultAdapter();//int isBlueCon;//蓝牙适配器是否存在，即是否发生了错误if (ba == null){// isBlueCon = -1;//error return -1;}else if(ba.isEnabled()) {int a2dp = ba.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 = ba.getProfileConnectionState(BluetoothProfile.HEADSET); //蓝牙头戴式耳机，支持语音输入输出 int health = ba.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 int flag = -1; if (a2dp == BluetoothProfile.STATE_CONNECTED) {flag = a2dp; } else if (headset == BluetoothProfile.STATE_CONNECTED) {flag = headset; } else if (health == BluetoothProfile.STATE_CONNECTED) {flag = health; }//说明连接上了三种设备的一种 if (flag != -1) {// isBlueCon = 1; //connected return 2; }}return -2; }
添加蓝牙耳机与有限耳机的监听：
private int isheadset=2;
//默认值为2，这样，软件启动时，默认耳机是正常的：
private void registerHeadsetPlugReceiver() {IntentFilter intentFilter = new IntentFilter(); intentFilter.addAction("android.intent.action.HEADSET_PLUG"); registerReceiver(headsetPlugReceiver, intentFilter); // for bluetooth headset connection receiver IntentFilter bluetoothFilter = new IntentFilter(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED); registerReceiver(headsetPlugReceiver, bluetoothFilter);}private BroadcastReceiver headsetPlugReceiver = new BroadcastReceiver() {@Override public void onReceive(Context context, Intent intent) {String action = intent.getAction();if (BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED.equals(action)) {BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); if(BluetoothProfile.STATE_DISCONNECTED== adapter.getProfileConnectionState(BluetoothProfile.HEADSET)) {isheadset--; //Bluetooth headset is now disconnected }else{isheadset++; }} else if ("android.intent.action.HEADSET_PLUG".equals(action)) {if (intent.hasExtra("state")) {if (intent.getIntExtra("state", 0) == 0) {isheadset--; }else if(intent.getIntExtra("state", 0) == 1){isheadset++; }}}}};
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