getting Null Pointer Exception in View.getDrawingCache()

Question

I am trying to get View converted in bitmap. In emulator my program is working fine and running as expected but when I run the same code in Device it gives null pointer Exception at particular line :

Bitmap b = Bitmap.createBitmap(view.getDrawingCache());

where view is object of RelativeLayout having Layout of current Activity. Can someone guide how can I resolve this issue. Thanks.

Answer 1

You need to call measure and layout on your view before using getDrawingCache(). Otherwise it will return null.