将应用程序置于与最近活动中按应用程序相同的前台？

Question

与用户在“ 最近活动”活动中按应用程序图标/图像时一样，我该如何使应用程序回到前台。

Answer 1

You just do what Android does when the user presses the application icon/image:

Intent intent = new Intent(context, MyRootActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

Make sure that you specify the root activity of your application (ie: the one with ACTION=MAIN and CATEGORY=LAUNCHER).

Answer 2

Do you need to bring back your app based on some global keyevents?

Couple of things that came in my mind.. You can to write a view and listen to the global touch. Something like this thats stated in example