来自android开发者(创建列表和卡片):

RecyclerView小部件是一个更高级和灵活的版本 列表视图。

好吧,这听起来很酷,但当我看到这张示例图片时,我真的很困惑这两者之间的区别。

上面的图片可以通过ListView使用自定义适配器轻松创建。

那么,在什么情况下应该使用RecyclerView呢?


当前回答

RecyclerView是一个新的ViewGroup,准备渲染任何 以类似的方式创建基于适配器的视图。它应该是 ListView和GridView的继承者,它可以在 最新的support-v7版本。已经开发了RecyclerView 考虑到可扩展性,因此可以创建任何类型的 你能想到的布局,但也不能没有一点恼人的地方 剂量。

安东尼奥·莱瓦的回答

 compile 'com.android.support:recyclerview-v7:27.0.0'

RecyclerView确实是一个比ListView强大的视图。 欲了解更多详情,请访问此页面。

其他回答

以下是RecyclerView和ListView之间的几个关键点/区别。明智地接电话。

If ListView works for you, there is no reason to migrate. If you are writing a new UI, you might be better off with RecyclerView. RecylerView has inbuilt ViewHolder, doesn't need to implement our own like in listView. It support notify at particular index as well Things like animating the addition or removal of items are already implemented in the RecyclerView without you having to do anything We can associate a layout manager with a RecyclerView, this can be used for getting random views in recycleview while this was limitation in ListView In a ListView, the only type of view available is the vertical ListView. There is no official way to even implement a horizontal ListView. Now using a RecyclerView, we can have a i) LinearLayoutManager - which supports both vertical and horizontal lists, ii) StaggeredLayoutManager - which supports Pinterest like staggered lists, iii) GridLayoutManager - which supports displaying grids as seen in Gallery apps. And the best thing is that we can do all these dynamically as we want.

ListView和RecyclerView之间有很多区别,但你应该特别注意以下几点:

ViewHolder模式在ListView中是完全可选的,但它被烘焙到RecyclerView中。 ListView只支持垂直滚动,但RecyclerView并不局限于垂直滚动列表。

我用RecyclerView工作了一点,仍然喜欢ListView。

当然,它们都使用ViewHolders,所以这不是一个优势。 RecyclerView在编码方面更加困难。 RecyclerView不包含页眉和页脚,所以它是一个减号。 ListView不需要创建ViewHolder。如果你想要一个带有分段或子标题的列表,那么创建独立的项(没有ViewHolder)是个好主意,这样更容易,也不需要单独的类。

除了以上差异之外,还有以下几个:

RV separates view creation and binding of data to view. In LV, you need to check if convertView is null or not for creating view, before binding data to it. So, in case of RV, view will be created only when it is needed but in case of LV, one can miss the check for convertview and will create view everytime. Switching between Grid and List is more easy now with LayoutManager. No need to notify and update all items, even if only single item is changed. One had to implement view caching in case of LV. It is provided in RV by default. (There is difference between view caching n recycling.) Very easy item animations in case of RV.

为了使列表视图具有良好的性能,您需要实现holder模式,这很容易搞砸,特别是当您想用几种不同类型的视图填充列表时。

RecyclerView烘焙了这个模式,使它更难以搞砸。它也更灵活,更容易处理不同的布局,不是直线,如网格。