Dynamically generate tree

[Albert-Jan Plate]

Hi! First off, I love how this Widget works! Thank you so much!

I initialize the controller in my didChangeDependencies() like this:

_treeViewController = TreeViewController(
      children: [
        Node(
          label: 'Location',
          key: 'location',
        ),
      ],
    );

But for some reason I’m not able to dynamically add items to it from my stream:

_treeViewController.addNode('location', Node(key: 'id0', label: 'Sub location name'));

Am I missing something? Would love to hear from you

[Kevin Armstrong]

Hi, you are very close in your implementation but the addNode method only returns a new list object:

List<Node>

You have to explicitly set the state yourself to see an update.
Somewhere in your code you should add the following statement where the state will be updated:

‌

...
setState((){
  //add line below
 _treeViewController = _treeViewController.withAddNode('location', Node(key: 'id0', label: 'Sub location name'));
});
...

‌

[Albert-Jan Plate]

Thanks for the clarification, everything is working as expected now! Thanks for this great widget!