using addRelation method of TreeBuilder shouldnt require to use the level number in the adapter. about tree-view-list-android HOT 5 CLOSED

It's not needed. The ID is recorded in the TreeManager (builder is there only 
to make tree building easier, manager is there to keep the actual tree). You 
call manager.getLevel(id) or manger.getNodeInfo(id) in case you need more 
information after adding the node.

Im not following, the demo SimpleStandardAdapter class constructor takes the 
LEVEL_NUMBER which represents the tree max level value am i right??? 

private static final int LEVEL_NUMBER = 4;
simpleAdapter = new SimpleStandardAdapter(this, selected, manager,
                LEVEL_NUMBER);

So going by this, and what you're saying, i can build the tree without the 
TreeBuilder class? with the InMemoryTreeManager class??
My case is i have a list of say Person objects and each object might have 
another Person reference to the Parent. So im just having difficulty in how do 
i build the tree if i dont know the level size of it.

regards,

It's not good for unknown number of levels. Anyhow tree view is bad on mobile, 
for more than 2-3 levels. You should make list navigation instead and show only 
one level at a time.

That's what i suspected but do you know where can i start searching about the 
use of lists to show one level at a time, i assume you only use on activity and 
listview for this system.

regards.

I guess you have to write it  yourself.