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我目前正在开发一个 android 应用程序。我必须通过蓝牙将 Polar Wearlink 腰带与手机配对（或连接）。

我已经尝试了多个网站或主题，但每次我尝试某些东西时，我都会强行关闭。

这是我最后一次尝试：

public class BluetoothConnectionManager {

// Context
private Context c;

// Bluetooth adapter
private BluetoothAdapter btAdapter;

// Bluetooth device
private BluetoothDevice device;

// Dialog
private AlertDialog dialogDetected;

public BluetoothConnectionManager(Context cont, BluetoothDevice dev, BluetoothAdapter ba){
    c = cont;
    device = dev;
    btAdapter = ba;

}


public void start() {
    ConnectThread ct = new ConnectThread(device);
    ct.run();
}

private class ConnectThread extends Thread {
    private final UUID MY_UUID = UUID.randomUUID();
    private final BluetoothSocket mmSocket;
    private final BluetoothDevice mmDevice;

    public ConnectThread(BluetoothDevice device) {
        BluetoothSocket tmp = null;
        mmDevice = device;
        try {
            tmp = device.createRfcommSocketToServiceRecord(MY_UUID);
        } catch (IOException e) { }
        mmSocket = tmp;
    }

    public void run() {
        btAdapter.cancelDiscovery();
        try {
            String tag = "text";
            Log.d(tag ,"FORCE CLOSE HERE");
            mmSocket.connect();
        } catch (IOException connectException) {
            try {
                mmSocket.close();
            } catch (IOException closeException) { }
            return;
        }
        manageConnectedSocket(mmSocket);
    }

    public void cancel() {
        try {
            mmSocket.close();
        } catch (IOException e) { }
    }
}

这是日志

  • 01-19 20:53:11.617：E/AndroidRuntime（7362）：致命异常：主要
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): java.lang.NullPointerException
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): 在 android.os.ParcelUuid.toString(ParcelUuid.java:72)
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): 在 android.sec.enterprise.BluetoothUtils.isSocketAllowedBySecurityPolicy(BluetoothUtils.java:95)
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): 在 android.bluetooth.BluetoothSocket.connect(BluetoothSocket.java:221)
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): at com.breath.bluetoothmodule.BluetoothConnectionManager$ConnectThread.run(BluetoothConnectionManager.java:62)
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): at com.breath.bluetoothmodule.BluetoothConnectionManager.start(BluetoothConnectionManager.java:40)
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): at com.breath.bluetoothmodule.BluetoothHandler$1$1.onClick(BluetoothHandler.java:75)
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): 在 com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:168)
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): 在 android.os.Handler.dispatchMessage(Handler.java:99)
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): 在 android.os.Looper.loop(Looper.java:137)
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): 在 android.app.ActivityThread.main(ActivityThread.java:4514)
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): 在 java.lang.reflect.Method.invokeNative(Native Method)
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): 在 java.lang.reflect.Method.invoke(Method.java:511)
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): 在 com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:993)
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): 在 com.android.internal.os.ZygoteInit.main(ZygoteInit.java:760)
  • 01-19 20:53:11.617: E/AndroidRuntime(7362): at dalvik.system.NativeStart.main(Native Method)
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