Find root layout in activity [duplicate]

Question

Is there a dynamic way to get at the root layout (the one that is the parent to all the other Layouts) in the XML currently set to my Activity?

What I'm after is rather than giving my root layout an explicit id and finding it via findViewById, I'm hoping to get something along the lines of

pseudo code:

this.findTopLayout();

having already called setContentView(R.layout.foo);

I'm not seeing anything in the spec that would do the trick, am I just missing it, or is there no way to do this?

Answer 1

You try out this way to get the root layout:

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

OR

getWindow().getDecorView().getRootView();

Answer 2

Note that apart from the method described by Grishu, you can also use the method getParent on any view (this includes buttons, imageviews, layouts, etc) to get the parent of that view (the parent returned might also have a parent). Hence, an alternative method would be to loop on getParent from a particular view until getParent returns null. At that point, you would have found the root view of your content view.