我想把所有的蓝牙设备都放在列表中查看这个代码在Java中工作,但是我希望它能被C XXAMARIN帮助吗?
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
// Discovery has found a device. Get the BluetoothDevice
// object and its info from the Intent.
BluetoothDevice device =
intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
String deviceName = device.getName();
String deviceHardwareAddress = device.getAddress(); // MAC address
}
}
};
最佳答案
首先,在android设备上获取默认BluetoothAdapter
的一个实例,并检查它是否已启用:
BluetoothAdapter adapter = BluetoothAdapter.DefaultAdapter;
if(adapter == null)
throw new Exception("No Bluetooth adapter found.");
if(!adapter.IsEnabled)
throw new Exception("Bluetooth adapter is not enabled.");
然后获取一个表示要连接到的物理设备的
BluetoothDevice
实例。您可以使用适配器的BondedDevices
集合获取当前已配对设备的列表。我使用一些简单的LINQ
来查找我要查找的设备:BluetoothDevice device = (from bd in adapter.BondedDevices
where bd.Name == "NameOfTheDevice" select bd).FirstOrDefault();
if(device == null)
throw new Exception("Named device not found.");
最后,使用设备的
CreateRfCommSocketToServiceRecord
方法,它将返回可用于连接和通信的BluetoothSocket
。注意,下面指定的UUID
是UUID
的标准SPP
:_socket = device.CreateRfcommSocketToServiceRecord(UUID.FromString("00001101-0000-1000-8000-00805f9b34fb"));
await _socket.ConnectAsync();
现在设备已连接,通信通过
InputStream
和OutputStream
属性进行,这些属性位于BluetoothSocket
对象上。这些属性是标准的.NET流对象,可以完全按照您的预期使用:// Read data from the device
await _socket.InputStream.ReadAsync(buffer, 0, buffer.Length);
// Write data to the device
await _socket.OutputStream.WriteAsync(buffer, 0, buffer.Length);