活动之间的切换在Android的？ [英] Switching between activities in android?

问题描述

在我的Andr​​oid应用程序中，我有以下的要求。

In my android application, I have following requirement.

活动A - >活动B（去选项） - >活动C（去一个选项，请转到B选）

Activity A --> Activity B(Go to A Option) --> Activity C(Go To A Option,Go To B Option)

1）去从b活动我已经使用活动A onBack pressed（）方法。

1) To Go To Activity A from Activity B i have used onBackPressed() method.

2）去从活动三我已经使用b活动 onBack pressed（）方法了。

2) To Go To Activity B from Activity C i have used onBackPressed()method again.

这是工作的罚款。

3）现在我想去的活动C（活动一个没有意图调用）。

3) Now i want to go to Activity A from Activity C (without Intent calling).

我怎样才能做到这一点？

How can i do this?

编辑1：

活动A是我的主要活动我不想用Intent.i要恢复活动一个从活动c。重新启动该活动。（就像我从b活动确实使用onBack pressed）。

Activity A is my Main activity i don't want restart the activity by using Intent.i want to resume Activity A from activity c.(like i did from activity B by using onBackPressed).

编辑2（附答案）：

好球员。在我的question.finally给我的帮助，谢谢大家，我发现类似@Paresh Mayani的回答一个简单的答案。

Ok guys. Thanks everyone for giving me your help on my question.finally i found a simple answer similar to @Paresh Mayani's answer.

答：

        Intent a = new Intent(getApplicationContext(),ActivityA.class);
        a.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);
        startActivity(a);

我用这个<一个得到这个很好的解决方案href="http://stackoverflow.com/questions/8688099/android-switch-to-activity-without-restarting-it">link这解决了我的问题。感谢大家再次，我真的AP preciate了。

i got this nice solution by using this link that solved my problem. thanks to everyone again and i really appreciate that.

推荐答案

我以为你不想要的，因为当你使用意向的转向活性的pressing返回键移动到$ p来使用意向$ pvious活动（活动C）。在这种情况下，我建议你包括 FLAG_ACTIVITY_CLEAR_TOP 标志。它会破坏所有的previous活动，让你移动到活动一个。

I assume that you don't want to use Intent because whenever you use Intent for moving to activity A pressing Back key will move to the previous activity (activity C). In this case I would suggest you to include FLAG_ACTIVITY_CLEAR_TOP flag. It will destroy all the previous activity and let you to move to Activity A.

 Intent a = new Intent(this,A.class);
 a.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
 startActivity(a);

另外，您也可以尝试 FLAG_ACTIVITY_REORDER_TO_FRONT 标志来代替，这将移动到活动一个不清除任何活动。

Alternatively, you can try the FLAG_ACTIVITY_REORDER_TO_FRONT flag instead, which will move to activity A without clearing any activity.

有关更多详情，请这。

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