Why does calling getWidth() on a View in onResume() return 0?

Question

Everything I\'ve read says you can\'t call getWidth() or getHeight() on a View in a constructor, but I\'m calling them in onResu

Answer 1

you have to wait that the the current view's hierarchy is at least measured before getWidth and getHeigth return something != 0. What you could do is to retrieve the "root" layout and post a runnable. Inside the runnable you should be able to retrieve width and height successfully

root.post(new Runnable() {
     public void run() {
         LinearLayout test = (LinearLayout) findViewById(R.id.myview);
         double widthpx = test.getWidth();
     }
});