package com.ckr.behavior.listener; import android.support.design.widget.AppBarLayout; /** * Created by PC大佬 on 2018/2/9. */ public interface OnSmoothScrollListener extends OnScrollListener { void addOnOffsetChangedListener(AppBarLayout.OnOffsetChangedListener listener); void removeOnOffsetChangedListener(AppBarLayout.OnOffsetChangedListener listener); }