如何完成每一项活动在堆栈中除第一个在Android中 [英] How to finish every activity on the stack except the first in Android

问题描述

我移植一个iPhone应用程序到Android，我似乎无法找到弹出每个活动堆栈除了根活动的一种手段。

I'm porting an iPhone app to Android and I can't seem to find a means to pop each activity on the stack except the root activity.

在Objective-C中我会做类似下面的

In objective-c I would do something like the below

[navController popToRootViewControllerAnimated:YES];

任何人都知道我是否能有效地调用每个活动结束（）的一些动作之后？

Anyone know if I can effectively call "finish()" on each activity after some action?

推荐答案

如果你想开始一个活动，比方说，您的主屏幕，并删除你的应用程序的堆栈所有其他活动，你可以使用：

If you want to start one Activity, say, your homescreen, and remove every other Activity in your application's stack, you can use:

Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); // Removes other Activities from stack
startActivity(intent);

如果您也想提供该事件的MainActivity（如标志点击标题栏），您可以添加 FLAG_ACTIVITY_SINGLE_TOP 标志以及确保它不添加自己的另一个实例堆栈。

If you also want to provide this event in the MainActivity (such as a logo click in the title bar), you can add the FLAG_ACTIVITY_SINGLE_TOP flag as well to make sure it does not add another instance of itself to the stack.

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