# Cagn TreeView
This widget is listed as flutter_treeview on pub.dev.
# Overview
The TreeView is hierarchical data widget for your flutter apps. It offers a number of options for customizing the appearance and handling user interaction. It also offers some convenience methods for importing data into the tree.
# Description
This TreeView widget can be used to display hierarchical data in your project. Examples are:
- directory structures
- organization charts
- nested screen relationships
- inheritance trees, etc.
This widget uses a controller to manage the data. This allows the user to manipulate the data outside of the Flutter widget build method. The data must be a list of type Node. Each node can have its own children list of type Node, thus creating the nested structure. The appearance of the TreeView can be controlled using a TreeViewTheme.
# Features
- Separately customize child and parent labels
- Add any icon to a node
- Build node display with default or custom builder
- Attach data object to each tree node
- Choose from different expander icons and several modifiers for adjusting shape, outline, and fill.
- Import data from a Map
- Includes ability to handle expandChange, tap, and double tap user interactions
- Includes convenience methods for adding, updating and deleting nodes
# Usage
To use this package, add flutter_treeview as a dependency in your pubspec.yaml file.
# API Reference
The complete API reference can be found here (opens new window).