Android Studio BroadcastReceiver无法正常工作

问题描述

大家好，我要添加一个广播接收器，以便在自动设置了引脚之后找到具有给定名称的蓝牙设备。 但是广播接收器无法正常工作（可能是onReceive未触发）。请帮助我找出我的错误

我添加了以下权限：

    <uses-permission android:name="android.permission.BLUETOOTH" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

这是活动：

public class ActivityBtConnection extends AppCompatActivity {
public static Context context;
BroadcastReceiver mReceiver;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_xaxss);
    context = this;

    mReceiver = new BroadcastReceiver() {
        @RequiresApi(api = Build.VERSION_CODES.KITKAT)
        @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);
                String name = device.getName();
                if (name != null && name.contains("HC-06")) {
                    device.createBond();
                }
            } else if (BluetoothDevice.ACTION_PAIRING_REQUEST.equals(action)) {
                BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
                String name = device.getName();
                if (name.contains("HC-06")) {
                    try {
                        byte[] pin = (byte[]) BluetoothDevice.class.getMethod("convertPinToBytes",String.class).invoke(BluetoothDevice.class,"1234");
                        Method m = device.getClass().getMethod("setPin",byte[].class);
                        m.invoke(device,pin);
                        device.getClass().getMethod("setPairingConfirmation",boolean.class).invoke(device,true);
                        device.getClass().getMethod("cancelPairingUserInput",boolean.class).invoke(device);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                    Intent i = new Intent(context,ActivityMoney2Device.class);
                    context.startActivity(i);
                }
            }
        }
    };

}

@Override
protected void onResume() {
    IntentFilter filter = new IntentFilter();
    filter.addAction(BluetoothDevice.ACTION_PAIRING_REQUEST);
    filter.addAction(BluetoothDevice.ACTION_FOUND);
    registerReceiver(mReceiver,filter);
    super.onResume();
}

@Override
protected void onPause() {
    unregisterReceiver(mReceiver);
    super.onPause();
}

解决方法

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