android 获取蓝牙已连接设备
16lz
2021-01-23
蓝牙如果手动配对并已连接，获取连接的设备：
1.检测连接状态：
int a2dp = bluetoothAdapter.getProfileConnectionState(BluetoothProfile.A2DP);int headset = bluetoothAdapter.getProfileConnectionState(BluetoothProfile.HEADSET);int health = bluetoothAdapter.getProfileConnectionState(BluetoothProfile.HEALTH);
2,根据是否有连接获取已连接的设备：
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;}if (flag != -1) {bluetoothAdapter.getProfileProxy(MainActivity.this, new ServiceListener() {@Overridepublic void onServiceDisconnected(int profile) {// TODO Auto-generated method stub}@Overridepublic void onServiceConnected(int profile, BluetoothProfile proxy) {// TODO Auto-generated method stubList<BluetoothDevice> mDevices = proxy.getConnectedDevices();if (mDevices != null && mDevices.size() > 0) {for (BluetoothDevice device : mDevices) {Log.i("W", "device name: " + device.getName());}} else {Log.i("W", "mDevices is null");}}}, flag);}
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