When should I get Width View in Fragment

Question

I adding View (button) programally in Linearlayout.LinearLayout is layouted by XML in Fragment.

I want to get button width, but always return 0.

I googled this problem,

getWidth work only onWindowFocusChanged.

 public void onWindowFocusChanged(boolean hasFocus) { }

but Fragment do not have this method.

How to get View width in Fragment?

Answer 1

I'd had a similar problem and solved it in the Fragment callback onViewCreated() like this:

@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    view.post(new Runnable() {
        @Override
        public void run() {
            // do operations or methods involved
            // View.getWidth(); or View.getHeight();
            // here
        }
    });
}

run() runs after all views were rendered...