在 Android 上从适配器内刷新 ExpandableListView
我在如何从其子视图之一刷新 ExpandableListView 时遇到了麻烦。
listView 包含文件列表，我想提供删除这些文件的可能性。但是执行删除后，需要刷新ExpandableListView。 我实现了自己的适配器，它扩展了BaseExpandableListAdapter。似乎无法从覆盖的 getChildView() 方法中获取我的父对象来发送 notifyDataSetChanged() 。 :-s
我考虑过向我的活动发送一个意图，其中包含有关组状态（折叠/展开）的信息并在接收时刷新，但即使如此，我也需要 ExpandableListView 对象。
这怎么能做到呢？
提前致谢！
祝你一切顺利
S。
I'm having trouble on how to refresh an ExpandableListView from within one of its childViews.
The listView contains a list of files, and I want to offer a possibility to delete those files. But after a deletion is performed, the ExpandableListView needs to be refreshed.
I implemented my own adapter which extends the BaseExpandableListAdapter. It seems there is no way to get my parent object from within the overwritten getChildView() method to send a notifyDataSetChanged(). :-s
I thought about sending an intent to my activity which contains information on the state of the groups (collapsed/expanded) and to refresh on receive, but even for this I would need the ExpandableListView object.
How can this be done?
Thanks in advance!
Be well
S.
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您必须
，然后ListView将重新加载数据。
You have to
Then the ListView will reload the data.