safe Focus
try to focus a drawable, without throwing an exception.
Return
true if the drawable was focused successfully, and false if it is not Drawable.focusable, or if it is already focused.
Since
1.0.4
try to focus a drawable, without throwing an exception.
true if the drawable was focused successfully, and false if it is not Drawable.focusable, or if it is already focused.
1.0.4