启动活动与后退按钮 [英] Starting Activity with back button

问题描述

我在开发Android的应用程序，在那里我正在寻找一个解决方案。

I'm developing an application in android, where i'm looking for a solution.

有一个活动（例如A1），从其中通过点击一个按钮，用户进入到另一个活动（说A2）。现在，一旦用户与A2的活动结束后，他点击后退按钮，返回到previous活动A1。 以及这是一个非常公知的事实，即，A1将在此时自动恢复。

There is an Activity(say A1) from which by clicking a button, user goes to another Activity(say A2). Now once the user has finished with A2 activity, he clicks back-button, to go back to previous activity A1. Well this is a very known fact that, A1 will resume automatically at this point.

但我想它以不同的方式（因为我的应用程序要求）。

But I want it in a different way (because my application demands that).

在，如果我去从A1活动A2，A1被破坏;和，而在A 2为如果被点击后退按钮，A1被重新创建。

Once if i go to activity A2 from A1, A1 is destroyed; and while being in A2 if back-button is clicked, A1 is created again.

谁能告诉我如何使这项工作？

Can anyone tell me how to make this work?

推荐答案

您可以使用：

public void onBackPressed()  
{  
    //do whatever you want the 'Back' button to do  
    //as an example the 'Back' button is set to start a new Activity named 'NewActivity'  
    this.startActivity(new Intent(YourActivity.this,NewActivity.class));  

    return;  
}  

在这里看看：<一href="http://www.41post.com/1685/programming/android-changing-the-back-button-behaviour">http://www.41post.com/1685/programming/android-changing-the-back-button-behaviour

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