蓝牙PTT触发公网对讲机代码

以下是使用蓝牙PTT触发公网对讲机的代码示例：

import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.os.AsyncTask;
import android.util.Log;
import java.io.IOException;
import java.io.OutputStream;
import java.util.UUID;

public class PttTriggerTask extends AsyncTask<Void, Void, Void> {

    private static final String TAG = "PttTriggerTask";
    private static final UUID SERIAL_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
    private static final byte[] PTT_ON_COMMAND = new byte[] { (byte) 0x80 };
    private static final byte[] PTT_OFF_COMMAND = new byte[] { (byte) 0x00 };

    private BluetoothAdapter mBluetoothAdapter;
    private BluetoothDevice mDevice;
    private BluetoothSocket mSocket;

    public PttTriggerTask(BluetoothAdapter bluetoothAdapter, BluetoothDevice device) {
        mBluetoothAdapter = bluetoothAdapter;
        mDevice = device;
    }

    @Override
    protected Void doInBackground(Void... voids) {
        try {
            mSocket = mDevice.createInsecureRfcommSocketToServiceRecord(SERIAL_UUID);
            mSocket.connect();
            OutputStream outputStream = mSocket.getOutputStream();
            outputStream.write(PTT_ON_COMMAND);
            Thread.sleep(1000);
            outputStream.write(PTT_OFF_COMMAND);
            outputStream.flush();
            mSocket.close();
        } catch (IOException | InterruptedException e) {
            Log.e(TAG, "Error triggering PTT", e);
        }
        return null;
    }

    @Override
    protected void onPostExecute(Void aVoid) {
        super.onPostExecute(aVoid);
    }
}

这段代码可以通过蓝牙连接到公网对讲机，然后触发 PTT（Push To Talk）按钮来进行语音通讯。其中，PTT_ON_COMMAND 和 PTT_OFF_COMMAND 数组分别表示 PTT 按钮按下和松开的命令，根据实际情况可以进行修改。请注意，这段代码只是一个示例，实际使用时需要根据具体情况进行修改和适配。