广播接收器的onReceive

广播接收器的onReceive

本文介绍了广播接收器的onReceive()线程安全的?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

的onReceive()的方法广播接收器线程安全的或者我需要实现我自己的同步?

如果我有的正在的onReceive()方法中使用的任何类级别的变量,而的onReceive()方法被多次调用速度非常快,它会造成一个问题?

 公共类MyBroadCastReceiver扩展广播接收器{    布尔isFirstTrigger = TRUE;    @覆盖
    公共无效的onReceive(上下文的背景下,意图ARG1){
      如果(isFirstTrigger)
       {
        //做一些费时
        isFirstTrigger = FALSE;
       }
      }


解决方案

It will only ever be called on the main application thread. Hence, it is thread-safe with respect to anything else running on the main application thread.

If the BroadcastReceiver is registered in the manifest, a new instance is created for each broadcast. This is why you do not normally see data members on a BroadcastReceiver.

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07-28 01:53