Android的重写onBack pressed（） [英] Android Overriding onBackPressed()

问题描述

是否有可能重写onBack pressed（）只有一个活动？

Is it possible to override onBackPressed() for only one activity ?

在后退按钮点击我要调用具体活动的对话，但在所有其他活动，我希望像以前（去previous活动）工作它的工作。 。

On back button click I want to call a dialog on a specific Activity, but in all other activities i want it to work as it worked before (going to previous activities) . . .

感谢事先你anwsers。

Thanks For your anwsers in advance.

EDITED

感谢大家对你的anwsers，我已经一切都像你告诉我，但我的问题是，当我点击后退按钮上的其他活动，我要我的previous活动（唯一在那里我有后退按钮重写），我认为这是不工作，我认为这是压倒一切的onBack pressed（）在整个应用程序，现在我明白了：D

Thank you everyone for your anwsers, I already had everything like you told me, but my problem was that when i was clicking back button on another Activity, I was going to my previous Activity (The one where i had back button Overriden) and i thought that it wasn't working, i thought it was overriding onBackPressed() in whole Application, now i got it :D

推荐答案

是的。只有覆盖它在一个活动与

Yes. Only override it in that one Activity with

@Override
public void onBackPressed()
{
     // code here to show dialog
     super.onBackPressed();  // optional depending on your needs
}

不要把这个code在任何​​其他活动

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