How to get Activity's content view?

Question

this.getWindow().getDecorView().findViewById(android.R.id.content)

or

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

or

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

You can get the view Back if you put an ID to your Layout.

<RelativeLayout
    android:id="@+id/my_relative_layout_id"

And call it from findViewById ...

How about

View view = Activity.getCurrentFocus();

You may want to try View.getRootView().

You can also override onContentChanged() which is among others fired when setContentView() has been called.