添加动画的ExpandableListView [英] Add animation to an ExpandableListView

问题描述

有没有办法来打开的可扩展列表在Android中，当添加动画？ 我想这样，当用户点击扩展列表上，它有一个动画/效果就像我开的滑动抽屉。

Is there a way to add animation when opening an expandable list in Android? I want it so that when the user clicks on the expandable list, it has an animation/effect like I'm opening a sliding drawer.

它移动缓慢，直到它完全打开。

It moves slow until it is completely opened.

推荐答案

我已经花了很多时间，没有运气搜索。现有的解决方案，只是不够光滑 - 如果你的布局是东西不仅仅是2个按钮比较复杂，它成为laggy

I've spent a lot of time searching with no luck. The existing solutions are just not smooth enough - if your layout is something more complex than just 2 buttons, it becomes laggy.

所以，我创建了自己的 ListAdapter 的缓存全貌成位图键，然后执行动画上缓存的视图，而不是观点本身。它的工作原理多快。

So, I've created my own ListAdapter that caches the whole view into a Bitmap and then performs the animation on the cached view instead of the view itself. It works much faster.

这是： https://github.com/dmitry-zaitsev/ExpandableAdapter

好消息是，你并不需要重写一堆code - 只是包装我的 ExpandableAdapter 在你的适配器，并提供视图的ID将充当像切换按钮和视图的id持有第二级的含量：

The good news is that you don't need to rewrite a bunch of code - just wrap my ExpandableAdapter around your adapter and provide the id of the view that will act like a toggle button and the id of the view that holds the content of the second level:

new ExpandableAdapter(context, yourAdapter, R.id.switch, R.id.holder);

这就是一切。

And that is all.

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