本文介绍了将焦点集中在ExpandableListView中的扩展组上的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我在NavigationDrawer中具有ExpandableListview.当组展开时,我折叠了以前的展开组,但是当组折叠时,展开的组失去了焦点(ExpandableListview的位置下降了).这是代码:
I have ExpandableListview inside NavigationDrawer. When group is expanded I collapse the previous expanded group, but when group is collapsed expanded group loses the focus (position of ExpandableListview goes down). Here's the code:
@Override
public boolean onGroupClick(ExpandableListView expandableListView, View view, int i, long l) {
if (mListView.isGroupExpanded(i)) {
mListView.collapseGroupWithAnimation(i);
} else {
mListView.expandGroupWithAnimation(i);
if(i!=lastExpandedGroupPosition )
mListView.collapseGroupWithAnimation(lastExpandedGroupPosition);
lastExpandedGroupPosition = i;
}
return true;
}
推荐答案
在扩展列表时,将函数 setSelectedGroup(groupPosition)
与 expandablelistview
对象一起使用.这将为该组设置焦点,您单击的是谁的视图!快乐的编码:)
Use the function setSelectedGroup(groupPosition)
with the expandablelistview
object while expanding the list. This would set the focus for the group , who's view you had clicked!Happy coding :)
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