Java 蓝牙不能与其他设备自动播放
我有一个应用程序，我想在蓝牙打开后立即与最近的设备自动播放。下面是我的代码Java 蓝牙不能与其他设备自动播放,java,android,bluetooth,Java,Android,Bluetooth,我有一个应用程序，我想在蓝牙打开后立即与最近的设备自动播放。下面是我的代码 BluetoothAdapter BA; BLE_PIN ="1234"; private final BroadcastReceiver broadcastReceiver=new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action =intent.
BluetoothAdapter BA;
BLE_PIN ="1234";
private final BroadcastReceiver broadcastReceiver=new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action =intent.getAction();
if (BluetoothDevice.ACTION_FOUND.equals(action)){
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
device.createBond();
}else if (BluetoothDevice.ACTION_PAIRING_REQUEST.equals(action)){
BluetoothDevice bluetoothDevice=intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
bluetoothDevice.setPin(BLE_PIN.getBytes());
Log.e(TAG, "Auto-entering pin:"+BLE_PIN);
Toast.makeText(getApplicationContext(),"Pin entered"+BLE_PIN,Toast.LENGTH_SHORT).show();
bluetoothDevice.createBond();
Toast.makeText(getApplicationContext(),"Pin entered request sent",Toast.LENGTH_SHORT).show();
Log.e(TAG,"pin entered and request sent...");}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
BA=BluetoothAdapter.getDefaultAdapter()
if (BA.isEnabled()){
startService(new Intent(getBaseContext(), MyService.class));
IntentFilter filter=new IntentFilter(BluetoothDevice.ACTION_FOUND);
filter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);
getApplicationContext().registerReceiver(broadcastReceiver,filter);
BA.startDiscovery();
a.setText("turn off bluetooth");
Intent getvis=new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
getvis.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION,0);
startActivity(getvis);