Android 将BT置于可发现模式,并在Xamarin Droid中接受SPP连接
这是我第一次在Xamarin上使用蓝牙Android 将BT置于可发现模式,并在Xamarin Droid中接受SPP连接,android,xamarin,xamarin.forms,bluetooth,xamarin.android,Android,Xamarin,Xamarin.forms,Bluetooth,Xamarin.android,这是我第一次在Xamarin上使用蓝牙 我需要在应用程序中激活“可发现模式”,然后接受来自外部主机设备的传入连接。 我已经阅读了一些文档,但我不能很好地理解如何实施它。 有人能给我指一下正确的方向吗?我找到了路 首先打开一个意图,将蓝牙置于发现模式 var intent = new Intent(BluetoothAdapter.ActionRequestDiscoverable); StartActivityForResult(intent, 0); 然后,使用ListenusingSecu
我需要在应用程序中激活“可发现模式”,然后接受来自外部主机设备的传入连接。 我已经阅读了一些文档,但我不能很好地理解如何实施它。
有人能给我指一下正确的方向吗?我找到了路 首先打开一个意图,将蓝牙置于发现模式
var intent = new Intent(BluetoothAdapter.ActionRequestDiscoverable);
StartActivityForResult(intent, 0);
然后,使用ListenusingSecureRFCommwith服务记录将BT置于监听模式:
class BluetoothThread : Java.Lang.Thread
{
BluetoothServerSocket _btServerSocket;
BluetoothSocket _btSocket;
Stream _inStream;
Stream _outStream;
private static Java.Util.UUID uuid = Java.Util.UUID.FromString("00001101-0000-1000-8000-00805F9B34FB");
public event EventHandler<String> OnStringReceived;
public bool Cancel { get; set; } = false;
public override void Run()
{
byte[] buffer = new byte[1024];
int bytes;
string _ReceivedStr;
try
{
_btServerSocket =
BluetoothAdapter.DefaultAdapter.ListenUsingInsecureRfcommWithServiceRecord("Test.Droid", uuid);
try
{
_btSocket = _btServerSocket.Accept();
if (_btServerSocket != null)
Log.Info("BluetoothThread", "CONNECTION SUCCEED!");
_inStream = _btSocket.InputStream;
_outStream = _btSocket.OutputStream;
}
catch (Java.IO.IOException e)
{
Log.Error("BluetoothThread", "accept() failed", e);
}
while (!Cancel)
{
// Read from the InputStream
bytes = _inStream.Read(buffer, 0, buffer.Length);
_ReceivedStr = Encoding.ASCII.GetString(buffer);
OnStringReceived?.Invoke(this, _ReceivedStr);
Log.Info("BluetoothThread", $"RECEIVED: {_ReceivedStr}");
}
}
catch (Java.IO.IOException e)
{
Log.Error("BluetoothThread", "listen() failed", e);
}
}
}
class BluetoothThread:Java.Lang.Thread
{
BluetoothServerSocket btServerSocket;
蓝牙插座_btSocket;
河道内的河流;
河流外流;
私有静态Java.Util.UUID UUID=Java.Util.UUID.FromString(“00001101-0000-1000-8000-00805F9B34FB”);
公共事件事件处理程序OnStringReceived;
公共bool Cancel{get;set;}=false;
公共覆盖无效运行()
{
字节[]缓冲区=新字节[1024];
整数字节;
字符串_ReceivedStr;
尝试
{
_btServerSocket=
BluetoothAdapter.DefaultAdapter.ListenusingSecureRFCommwithServiceRecord(“Test.Droid”,uuid);
尝试
{
_btSocket=_btServerSocket.Accept();
如果(_btServerSocket!=null)
Log.Info(“BluetoothThread”,“连接成功!”);
_inStream=_btSocket.InputStream;
_扩展流=_btSocket.OutputStream;
}
捕获(Java.IO.ioe异常)
{
错误(“BluetoothThread”,“accept()失败”,e);
}
而(!取消)
{
//从输入流读取
字节=_inStream.Read(buffer,0,buffer.Length);
_ReceivedStr=Encoding.ASCII.GetString(缓冲区);
OnStringReceived?.Invoke(这个,_ReceivedStr);
Log.Info(“BluetoothThread”,收到$:{u ReceivedStr}”);
}
}
捕获(Java.IO.ioe异常)
{
错误(“BluetoothThread”,“listen()失败”,e);
}
}
}