Handler.post（Runnable的r）和Activity.runOnUiThread（Runnable的R）之间的区别 [英] Difference between Handler.post(Runnable r) and Activity.runOnUiThread(Runnable r)

问题描述

海兰一切！ 我想知道是否有与

Hy all! I want to know if there a difference between

new Handler.post(Runnable r);

和

activity.runOnUiThread(Runnable r)

谢谢！

推荐答案

runOnUiThread 基本上适合显示进度对话框或<$ C $之前做一些UI操作C>的AsyncTask 通话。 如果您想更新UI线程中的执行过程中，那么最好的方法是创建一个处理程序将更新你的用户界面，并让该线程继续运行，例如，几秒钟后周期性地更新一个文本视图，说的定时器功能。

runOnUiThread is basically suited to show a progress dialog or do some UI manipulations before an AsyncTask call. If you want to update the UI in the middle of a thread execution, then the best approach is to create a Handler which will update your UI, and let the thread continue running, for example, updating a text view periodically after a few sec, say timer functionality.

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