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cntreenode

Welcome to the documentation for the CNTreeNode framework. This framework provides an easy-to-use implementation of a tree data structure in Objective-C.

Getting Started

To begin using CNTreeNode in your project, follow these steps:

  1. Install CNTreeNode using Cocoapods or manually by cloning the repository.
  2. Add the CNTreeNode framework to your Xcode project.
  3. Import the CNTreeNode header file into your desired class.

Usage

Creating a Tree Node

To create a new tree node, use the following code snippet:


CNTreeNode *treeNode = [[CNTreeNode alloc] initWithValue:@"Root"];

Adding Child Nodes

You can add child nodes to a tree node using the addChild: method. Here’s an example:


CNTreeNode *childNode1 = [[CNTreeNode alloc] initWithValue:@"Child Node 1"];
CNTreeNode *childNode2 = [[CNTreeNode alloc] initWithValue:@"Child Node 2"];

[treeNode addChild:childNode1];
[treeNode addChild:childNode2];

Traversing the Tree

You can traverse the tree using depth-first or breadth-first search. Here are some examples:

Depth-First Search

You can perform a depth-first search using the traverseDepthFirstWithBlock: method. Here’s how:


[treeNode traverseDepthFirstWithBlock:^(CNTreeNode *node) {
NSLog(@"Value: %@", node.value);
}];

Breadth-First Search

To perform a breadth-first search, use the traverseBreadthFirstWithBlock: method. Here’s an example:


[treeNode traverseBreadthFirstWithBlock:^(CNTreeNode *node) {
NSLog(@"Value: %@", node.value);
}];

Querying a Node

CNTreeNode provides convenient methods to query the tree. Here are a few examples:

Checking if Node is a Leaf

Use the isLeaf property to check if a node is a leaf (i.e., has no children):


if (treeNode.isLeaf) {
NSLog(@"This is a leaf node.");
}

Getting the Parent Node

You can retrieve the parent node of a given node using the parent property:


CNTreeNode *parentNode = treeNode.parent;
NSLog(@"Parent Node: %@", parentNode.value);

Conclusion

Congratulations! You have completed the basic usage guide for the CNTreeNode framework. For more detailed information, please refer to the API documentation.