由网友(埋葬过去)分享简介:当我展开一个新的组,可我崩溃的最后一个扩展的?When I expand a new group, can I collapse the last one expanded?推荐答案尝试把这个在你的 ExpandableListAdapter ,的ListView 是引用 ExpandableListView 本...
当我展开一个新的组,可我崩溃的最后一个扩展的?
When I expand a new group, can I collapse the last one expanded?
推荐答案
尝试把这个在你的 ExpandableListAdapter
,的ListView
是引用 ExpandableListView
本身。而 lastExpandedGroupPosition
里面定义了一个整数成员变量的 ExpandableListAdapter
。
Try putting this in your ExpandableListAdapter
, listView
is a reference to the ExpandableListView
itself. And lastExpandedGroupPosition
is a integer member variable defined inside your ExpandableListAdapter
.
@Override
public void onGroupExpanded(int groupPosition){
//collapse the old expanded group, if not the same
//as new group to expand
if(groupPosition != lastExpandedGroupPosition){
listView.collapseGroup(lastExpandedGroupPosition);
}
super.onGroupExpanded(groupPosition);
lastExpandedGroupPosition = groupPosition;
}
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