Android-BlutoothBle,蓝牙中心设备(peripheral)向外围设备(GattServer)连续写入多个Characteristic的注意事项

新写入一个characteristic时,应该等上一个写入characteristic操作结束后,在回调函数里面得到返回状态过后,再能继续写入下一个characteristic

 

新写入一个characteristic时,

 

public static boolean Write_Characteristic_Callback_Success = true;


    Thread t1=new Thread(new Runnable() {
    @Override
    public void run() {
      //上一次回调是否成功,不成功继续等待
      while(!Write_Characteristic_Callback_Success){}
      //开始写入之前,把Write_Characteristic_Callback_Success置为false
      Write_Characteristic_Callback_Success=false;
      mBluetoothLeService.writeCharacteristic(finalBluetoothGattCharacteristic);
    }
  });
  t1.start();
  try {
    //等待该线程执行结束
    t1.join();
  } catch (InterruptedException e) {
    e.printStackTrace();
  }
 

 

 

在回调函数里面得到返回状态

 

        @Override
        public void onCharacteristicWrite(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) {

            if(status==BluetoothGatt.GATT_SUCCESS){
                Write_Characteristic_Callback_Success=true;//自定义的全局静态变量,记录上一个写入操作回调函数得到的状态
                broadcastUpdate(ACTION_DATA_WRITE_SUCCESS, characteristic);
            }
        }

 

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