Expand all children in expandable list view

user_6482 0
Viewed 63561

I would like to expand all children while the expandable list view is populated. Currently my code looks like this:

ExpandableListView listView = (ExpandableListView) findViewById(R.id.view);
int count = viewAdapted.getGroupCount();
for (int position = 1; position <= count; position++)
    listView.expandGroup(position - 1);

which is pretty ugly. Is there a nicer way to do this?

expandablelistview android
5 Answers

You can expand it in getGroupView in your custom adapter:

@Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
    View v = super.getGroupView(groupPosition, isExpanded, convertView, parent);
    ExpandableListView mExpandableListView = (ExpandableListView) parent;
    mExpandableListView.expandGroup(groupPosition);
    return v;
}

Gluck!

user_28102310

I have tried the responses listed but i found that i can use the getGroupCount() method to get the number of groups.

Using this method i can iterate and expand every group of my ExpandableListView

for (int i = 0; i < myExpandableListView.getExpandableListAdapter().getGroupCount(); i++) {
      //Expand group
      myExpandableListView.expandGroup(i);
 }
user_2502600
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