a customized LayoutManager - fade and shrink the head itemView when scrolling.
Dribbble设计:链接
IOS实现:VegaScroll
RecyclerView最顶部的itemView,会随着手指滑动实现收缩隐藏与放大显示,并伴随recycler的回收与复用。
代码比较简单粗暴,使用自定义的LayoutManger,内置SnapHelper。
由于想要在任意时刻都能snap到第一个子View,所以在LayoutManager中用了比较讨巧的方法去设定scroll的最大值。
compile 'com.stone.vega.library:VegaLayoutManager:1.0.6'
recyclerView.setLayoutManager(new VegaLayoutManager());
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