如何通过蓝牙在android上发送几个字节

Question

我在Android上通过蓝牙发送字节有一个问题。我从Stackoverflow得到这个代码:

private boolean connected = false;
private BluetoothSocket sock;
private InputStream in;
private OutputStream out;
zee = BluetoothAdapter.getDefaultAdapter().getRemoteDevice(
        "XX:XX:XX:XX:XX:XX");
    m = zee.getClass().getMethod("createRfcommSocket",
        new Class[] { int.class });
    sock = (BluetoothSocket) m.invoke(zee, Integer.valueOf(1));
    sock.connect();
    in = sock.getInputStream();
    out = sock.getOutputStream();
char[] test = { 0x55, 0x0, 0x0, 0x0, 0x0, 0x50, 0x2, 0x0,
        0x30, 0xD7 };
for(int k=0; k < test.lenght; k++){
new DataOutputStream(sock.getOutputStream()).writeByte(test[k]);
}


for(int k=0; k < test.lenght; k++){
new DataOutputStream(sock.getOutputStream()).writeByte(test[k]);
}

Bytes一个接一个…但我需要把它们放在一个包里发送。我需要用什么方法?如何做到这一点?

Answer 1

适合我:

OutputStream outStream = socket.getOutputStream();
byte[] test = {0x03, 0x40, 0x00, (byte) ch2, (byte) 0xC1, (byte) 0xC0};
outStream.write(test);