删除回调处理程序无法正常工作 [英] Remove callback for handler not work
问题描述
我已经写调用该方法,每次间隔的处理程序。我想在删除处理程序上的destroy()。在code I的使用如下,在OnCreate()
I have written a handler that calls the method every time interval. I want to remove that handler in on destroy(). The code i use as follows, In Oncreate()
private final Handler _handler = new Handler();
public int DATA_INTERVAL = 30 * 1000;
Runnable getData;
getData = new Runnable()
{
@Override
public void run()
{
recieveData();
}
};
_handler.postDelayed(getData, DATA_INTERVAL);
和中的OnDestroy(),我使用,
and in ondestroy(), i use,
_handler.removeCallbacks(getData);
但removecallbacks无法正常工作。它退出活动后调用。
But removecallbacks not work. It calls after exiting the activity.
推荐答案
removeCallbacks(Runnable接口R)一>:
删除在消息队列的Runnable为r的任何未决的帖子。
Remove any pending posts of Runnable r that are in the message queue.
所以 removeCallbacks(..)
只停未决消息(的Runnable)目前没有运行可运行的,所以如果要停止正在运行的可运行的,然后使用布尔varaible的回采主题当用户退出从您的应用程序。
so removeCallbacks(..)
only stops pending messages (Runnables) not currently running runnable so if you want to stop currently running Runable then use a Boolean varaible for Stoping Thread when user Exit from your app.
看到这个帖子的<一个href=\"http://stackoverflow.com/questions/5844308/removecallbacks-not-stopping-runnable\">removeCallbacks没有阻止可运行
这篇关于删除回调处理程序无法正常工作的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!