public int getTotalDragDistance() {
        return mTotalDragDistance;
    }
Change townScale between {@link #TOWN_INITIAL_SCALE} and {@link #TOWN_FINAL_SCALE} depending on {@link #mPercent}
Change townTopOffset between {@link #mTownInitialTopOffset} and {@link #mTownFinalTopOffset} depending on {@link #mPercent}
ptr-demo/src/in/srain/cube/views/ptr/demo/ui/header/RentalsSunDrawable.java