android蓝牙多次后,android – 如何防止BluetoothGattCallback一次多次执行

我的服务有一个BluetoothGattCallback实例

public class MyService extends Service {

private BluetoothGattCallback callback;

@Override

public void onCreate() {

super.onCreate();

callback = new BluetoothGattCallback() {

@Override

public synchronized void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {

Log.i("onConnectionStateChanged", "Status " + status);

Log.i("onConnectionStateChanged", "New State " + newState);

}

};

}

// registration of bluetooth adapter and blah blah blah

}

当我启动应用程序时,它工作正常,回调只被调用一次,但经过几次尝试,它被调用两次.

样本日志

10-22 13:29:18.731 26944-26961/redacted.lollipop I/onConnectionStateChange: Status 0

10-22 13:29:18.731 26944-26961/redacted.lollipop I/onConnectionStateChange: New State