如何把一个活动的前景（堆栈的顶部）？ [英] How to bring an activity to foreground (top of stack)?

问题描述

在Android的，我定义的活动为ExampleActivity。

In Android, I defined an activity ExampleActivity.

在我的应用程序的启动，创建此A-活动的一个实​​例，说这是 A 。 当用户点击在 A 按钮，对B-活动的另一个实例，B已创建。现在的任务堆栈B-A，用乙在顶部。然后，用户点击B，C-活动的另一个实例的一个按钮，和C已创建。现在的任务堆栈CBA，用C在顶部

When my application was launched, an instance of this A-Activity was created, say it is A. When user clicked a button in A, another instance of B-Activity, B was created. Now the task stack is B-A, with B at the top. Then, user clicked a button on B, another instance of C-Activity, and C was created. Now the task stack is C-B-A, with C at the top.

现在，当用户点击℃的按钮，我希望应用程序带来的前景，也就是使一个是在任务堆栈的顶部，ACB。

Now, when user click a button on C, I want the application to bring A to the foreground, i.e. make A to be at the top of task stack, A-C-B.

我怎么能写code来做到这一点？

How can I write the code to make it happen?

推荐答案

您可以试试这个<一href="http://developer.android.com/reference/android/content/Intent.html#FLAG_ACTIVITY_REORDER_TO_FRONT"><$c$c>FLAG_ACTIVITY_REORDER_TO_FRONT （该文件描述正是你想要）

You can try this FLAG_ACTIVITY_REORDER_TO_FRONT (the document describes exactly what you want to)

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