Android Setbackgroundresource and Setbackgrounddrawable and usage

两个方法的效果是一样，只是区别于效率！

Playbtn.setbackgroundresource (R.drawable.pause_selecor);

From the above can be seen from the resource file to get the Pause_selecor object in drawable, if it is a frequently used drawable object, you can make it a member variable to use,

For example: When OnCreate, read the resource file and convert it to drawable object.

Java code:

Pauseselecor =  mycontext.getresources (). getdrawable (R.drawable.pause_selecor);

When you need to change the background, you do not need to go to the resource file to find, but can pass:

Java code:

Pauseselecor. setbackgrounddrawable (OnPause);  

Android Setbackgroundresource and Setbackgrounddrawable and usage