If I call getMeasuredWidth() or getWidth() for layout in onResume they return 0

You cannot use the width/height/getMeasuredWidth/getMeasuredHeight on a View before the system renders it (typically from onCreate/onResume).

Simple solution for this is to post a Runnable to the layout. The runnable will be executed after the View has been laid out.

BoxesLayout = (RelativeLayout) findViewById(R.id.BoxesLinearLayout);BoxesLayout.post(new Runnable() {    @Override    public void run() {        int w = BoxesLayout.getMeasuredWidth();        int h = BoxesLayout.getMeasuredHeight();        ...    }});

This answer says:

Use the ViewTreeObserver on the View to wait for the first layout. Only after the first layout will getWidth()/getHeight()/getMeasuredWidth()/getMeasuredHeight() work.

ViewTreeObserver viewTreeObserver = view.getViewTreeObserver();if (viewTreeObserver.isAlive()) {  viewTreeObserver.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {    @Override    public void onGlobalLayout() {      view.getViewTreeObserver().removeGlobalOnLayoutListener(this);      viewWidth = mediaGallery.getWidth();      viewHeight = mediaGallery.getHeight();    }  });}

you can override onLayout() in your view; this is used by android to position each of the children the view has, so you could do the stuff you want to do there after the super(..) call.