@Override
public Drawable mutate() {
if (!mMutated && super.mutate() == this) {
final int N = mDrawableContainerState.getChildCount();
final Drawable[] drawables = mDrawableContainerState.getChildren();
for (int i = 0; i < N; i++) {
if (drawables[i] != null) drawables[i].mutate();
}
mMutated = true;
}
return this;
}
