我无法在扩展新组时关闭之前扩展的组。我读过类似的问题,但我无法从中提取概念。我尝试使用 crashGroup (groupPosition) 方法,但它不起作用。
您好,请尝试下面的代码。
int lastExpandedGroupPosition = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final ExpandableListView listView = (ExpandableListView) findViewById(R.id.listView);
listView.setOnGroupExpandListener(new OnGroupExpandListener() {
@Override
public void onGroupExpand(int groupPosition) {
// TODO Auto-generated method stub
if (groupPosition != lastExpandedGroupPosition) {
listView.collapseGroup(lastExpandedGroupPosition);
}
lastExpandedGroupPosition = groupPosition;
}
});
adapter = new ExpandableListAdapter(this, new ArrayList<String>(),
new ArrayList<ArrayList<Vehicle>>());
// Set this blank adapter to the list view
listView.setAdapter(adapter);
}
导入以下行。
import android.widget.ExpandableListView.OnGroupExpandListener;
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