Android code calls Setbackgroundresource caused by padding problem

Recently, when I was working on a voice video call module, there was a strange problem with the UI, as follows:

In the voice video call process, the other side refused or ended the call, the interface of the answer, hang up and other button background switch to gray, resulting in the voice and the end button size (in fact, the layout of the padding is invalid), the original layout as follows (XML, the main red):

After hanging, change UI, code Settings button background is as follows:

if (btend! = null) {Btend.setbackgroundresource (R.DRAWABLE.END_VOIP_BTN_BG); btend.setenabled (false);}

The results appear as follows:

After the UI button is significantly larger, the icon is stretched, careful observation can be found, in fact, padding failure.

Workaround:

When setting the background in the code, the padding is also set:

if (btend! = null) {Btend.setbackgroundresource (R.DRAWABLE.END_VOIP_BTN_BG); int bottom = Btend.getpaddingbottom (); int top = Btend.getpaddingtop (), int right = Btend.getpaddingright (), int left = Btend.getpaddingleft (); Btend.setpadding ( Left, top, right, bottom); btend.setenabled (false);}

Android code calls Setbackgroundresource caused by padding problem