如何在SystemUI类中获取当前活动的当前视图或应用程序上下文

Question

I have a big problem. In systemUI/PhoneStatusBar class, I want to add a childView to parrent of current View of running Activity . How to done it in PhoneStatusBar.java in systemUI . I tried to using some method, example

View.getRootView() 

or so on, but cannot get expected result. Hope to get success from everyone. Thanks very much

Thanks for help from you. But i would like to emphasized that "I want to get current view of running activity". I it must be done in android/frameworks/base/packages//Systemui/statusbar/phone/PhoneStatusBar.java. I very very hope to continue receiving helps from everyone

Answer 1

Try

View.getContext();

It should work.

Answer 2

To add a view, you need to cast it as a ViewGroup:

ViewGroup addViewHere = (ViewGroup)myView;

Or you may need to get the parent if the problem is that you cannot add the view to the correct place in the view hierarchy:

ViewGroup addViewHere = (ViewGroup)myView.getParent();

Then assuming all layout params are correct, add it:

addViewHere.addView(newView);

Answer 3

You can try this:

findViewById(android.R.id.content).getRootView()

It should give you the root view of the activity including status bar on top