TreeNode

Every item on our Tree is a TreeNode, and you can use the default one or create your own custom tree node if needed.

To create a Default Tree Node

TreeNode node = new TreeNode(value, R.layout.list_item);

Once it created it will be at level 0 with no children and no parent.

Maybe in some cases you want to create a custom TreeNode, all you need is to create a class that extend it and add your own functions and variables, please check the log example for practical example.

public class CustomTreeNode extends TreeNode {

    public CustomTreeNode(Object value, int layoutId) {
        super(message, layoutId);
    }
}

TreeNode has many method to set and get values

To add new child

treeNode.addChild(TreeNode child)

Change the value

treeNode.setValue(Object value);

Get the current value

Object value = treeNode.getValue();

Get the node parent

TreeNode parent = treeNode.getParent();

To make the node expanded or collapsed

treeNode.setExpanded(isExpanded);

Check if it expanded

boolean isExpanded = treeNode.isExpanded();

Check if it selected or not

boolean isSelected = treeNode.isSelected();

Get the node level

int level = treeNode.getLevel();