How to detect if view has finished re-drawing

Question

I have an ImageView and I want to change it's size in runtime. So I do the following:

LayoutParams params = (LayoutParams) imgView.getLayoutParams();
params.width = size;
params.height = size
imgView.setLayoutParams(params);

The problem is that based on these new width and height I want to change my another ImageView, but seems like LayoutParams are not applied immedately, because Log put just after setLayoutParams prints old width value. So here is a question: is there any way to force ImageView to update (I already tried View.invalidate() and View.requestLayout but no success), or is there any way to detect if ImageView has finished updating, so I can use it's new parameters?

See: http://stackoverflow.com/questions/21086859/setlayoutparams-doesnt-work-second-time — Udo Klimaschewski, Jun 30 '14 at 09:24

score 1 · Accepted Answer · edited May 23 '17 at 12:05

1

you can attach a viewTreeObserver. Which will get called every time layout is changed

You can follow this link

edited May 23 '17 at 12:05

Community

1
1

answered Jun 30 '14 at 09:32

vipul mittal

17,343
3
41
44

How to detect if view has finished re-drawing

1 Answers1