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Update Recyclerview和Listview的异同.md #109

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Update Recyclerview和Listview的异同.md #109

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4 changes: 2 additions & 2 deletions Part1/Android/Recyclerview和Listview的异同.md
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Expand Up @@ -2,7 +2,7 @@
---

* ViewHolder是用来保存视图引用的类，无论是ListView亦或是RecyclerView。只不过在ListView中，ViewHolder需要自己来定义，且这只是一种推荐的使用方式，不使用当然也可以，这不是必须的。只不过不使用ViewHolder的话，ListView每次getView的时候都会调用findViewById(int)，这将导致ListView性能展示迟缓。而在RecyclerView中使用RecyclerView.ViewHolder则变成了必须，尽管实现起来稍显复杂，但它却解决了ListView面临的上述不使用自定义ViewHolder时所面临的问题。
* 我们知道ListView只能在垂直方向上滚动，Android API没有提供ListView在水平方向上面滚动的支持。或许有多种方式实现水平滑动，但是请想念我，ListView并不是设计来做这件事情的。但是RecyclerView相较于ListView，在滚动上面的功能扩展了许多。它可以支持多种类型列表的展示要求，主要如下：
* 我们知道ListView只能在垂直方向上滚动，Android API没有提供ListView在水平方向上面滚动的支持。或许有多种方式实现水平滑动，但是请相信我，ListView并不是设计来做这件事情的。但是RecyclerView相较于ListView，在滚动上面的功能扩展了许多。它可以支持多种类型列表的展示要求，主要如下：

1. LinearLayoutManager，可以支持水平和竖直方向上滚动的列表。
2. StaggeredGridLayoutManager，可以支持交叉网格风格的列表，类似于瀑布流或者Pinterest。
Expand Down Expand Up @@ -49,4 +49,4 @@ long id, boolean checked) { ... }
```
而RecyclerView则没有此功能。

[http://www.cnblogs.com/littlepanpc/p/4497290.html](http://www.cnblogs.com/littlepanpc/p/4497290.html)
[http://www.cnblogs.com/littlepanpc/p/4497290.html](http://www.cnblogs.com/littlepanpc/p/4497290.html)