"activity.onCreate()"是否正常?多次调用的方法 [英] Is it normal for the "activity.onCreate()" method to be called multiple times

问题描述

我在Activity的onCreate方法中有一些代码，并注意到它被调用了3次.这是正常行为吗?谢谢.

I have some code in the onCreate method an Activity and noticed that it is being called three times. Is it normal behaviour? Thanks.

推荐答案

您可能需要通读 OnCreate一次.但是，在许多情况下，可能会导致您的活动被杀死并重获新生.因此，onCreate将再次被调用.

OnCreate will only be called one time for each lifetime of the Activity. However, there are a number of situations that can cause your activity to be killed and brought back to life. Thus, onCreate will be called again.

要正确地支持此功能，可以将状态信息保存在onSaveInstanceState中，并从创建时获得的状态捆绑包中还原状态信息.

To support this properly, you can save state information in onSaveInstanceState and restore it fron the state bundle you get in on create.

这篇关于"activity.onCreate()"是否正常?多次调用的方法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！