Question

我正在使用搜索附近蓝牙的应用程序。我使用以下代码，它可以在5.0中找到它返回附近的蓝牙设备但是当我在6.0.1中测试时BluetoothDevice.ACTION_FOUND未被调用时，仅调用BluetoothAdapter.ACTION_DISCOVERY_STARTED和BluetoothAdapter.ACTION_DISCOVERY_FINISHED。

@Override
protected void onCreate(Bundle savedInstanceState) {
    BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
    bluetoothAdapter = bluetoothManager.getAdapter();
    Intent discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
    discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION,0);
    startActivity(discoverableIntent);
}
private final BroadcastReceiver bReciever = new BroadcastReceiver() {
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        System.out.println(action);
        if (BluetoothDevice.ACTION_FOUND.equals(action)) {
            BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
            System.out.println(device);
        }
    }
};
public void onSearch(View v){
    if (bluetoothAdapter.isDiscovering()) {
        bluetoothAdapter.cancelDiscovery();
    }
    System.out.println(bluetoothAdapter.startDiscovery());
    IntentFilter intentFilter = new IntentFilter();
    intentFilter.addAction(BluetoothDevice.ACTION_FOUND);
    intentFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
    intentFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
    registerReceiver(bReciever, intentFilter);

}

我的问题是为什么在6.0.1中没有调用BluetoothDevice.ACTION_FOUND？谢谢。

Answer 1

您是否检查过应用程序管理器中的权限？

转到＆＃34; 设置＆＃34; - ＆GT; ＆＃34;的应用＆＃34; - ＆GT; ＆＃34; 您的应用＆＃34; - ＆gt; ＆＃34;的权限＆＃34;

并检查是否给出了蓝牙许可。

在6.0.1中搜索附近的蓝牙

1 个答案: