package android.graphics.drawable; import android.graphics.Canvas; public class TransitionDrawable extends LayerDrawable { public TransitionDrawable(Drawable[] layers) { super(layers); } public void setCrossFadeEnabled(boolean enabled) {} public void startTransition(int duration) {} @Override public void draw(Canvas canvas) { // always draw the target drawable mLayerState.mChildren[1].mDrawable.draw(canvas); } }