How can I create a 2 level or 3 level expandable ListView?

Question

I am planning to create an expandable Listview that has more than 2 levels. How can I do this?

score 1 · Answer 1 · edited May 23 '17 at 12:18

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You can achieve an n-level ExpandableListView, if you use it with your custom BaseExpandableListAdapter.

In this extended adapter, you override the

public View getGroupView(int groupPosition, boolean isExpanded, 
    View convertView, ViewGroup parent)

method, assign an ExpandableListView instance to the convertView, and return it.

If you have overriden all the necessary methods in your adapter, this should work.

In this thread you can find a working sample of ExpandableListView using BaseExpandableListAdapter. If you modify its getGroupView method to return an other ExpandableListView instance, you'll have a multilevel listview.

edited May 23 '17 at 12:18

Community

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answered Apr 15 '11 at 17:40

rekaszeru

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Surely that should be ExpandableListView, not BaseExpandableListAdapter in the convertView? – Phil Lello Apr 15 '11 at 17:56
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Thanks for pointing that out! :) stupid mistake, i've corrected it – rekaszeru Apr 15 '11 at 18:00
You missed one (directly below the override) - I've tried to edit for you, it's stuck in peer review ATM – Phil Lello Apr 15 '11 at 21:05
Thanks rekaszeru, I will try out that. – James Apr 16 '11 at 01:18
Can you give me a little sample here. I am so stucked. – Andro Selva Jul 29 '11 at 04:51

How can I create a 2 level or 3 level expandable ListView?

1 Answers1