好不容易找到了,写下来避免忘了
//展开所有父项
rhp_adapter 是适配器
elv是ExpandableListView
for (int i = 0, length = rhp_adapter.getGroupCount(); i < length; i++) {elv.expandGroup(i);
}
好不容易找到了,写下来避免忘了
//展开所有父项
rhp_adapter 是适配器
elv是ExpandableListView
for (int i = 0, length = rhp_adapter.getGroupCount(); i < length; i++) {