客户提出需求,要求分组列表单击一个group其他的group应该关闭,这个group的group标题应该顶头。
我网上大致找了一圈没找到相关的,于是去google group里搜索了下 ,发现有人提出了他的解决方法:
http://groups.google.com/group/Android-developers/browse_thread/thread/638f7ae1cb75b710/0154a631a2f38717?lnk=gst&q=setOnGroupClickListener#0154a631a2f38717
受此启发我想出了自己的方法,重写setOnGroupClickListener方法,使用flag控制:
定义flag记录列表状态
int expandFlag = -1;//控制列表的展开
重写onGroupClick方法
ExpandableListView listView = getExpandableListView();
listView.setOnGroupClickListener(new OnGroupClickListener() {
@Override
public boolean onGroupClick(ExpandableListView listView, View v,
int groupPosition, long id) {
if (expandFlag == -1) {
//展开被选的group
listView.expandGroup(groupPosition);
//设置被选中的group置于顶端
listView.setSelectedGroup(groupPosition);
expandFlag = groupPosition;
} else if (expandFlag == groupPosition) {
listView.collapseGroup(expandFlag);
expandFlag = -1;
} else {
listView.collapseGroup(expandFlag);
//展开被选的group
listView.expandGroup(groupPosition);
//设置被选中的group置于顶端
listView.setSelectedGroup(groupPosition);
expandFlag = groupPosition;
}
return true;
}
});