a simple TabView controller in unity3D, require NGUI

TabController.cs

using UnityEngine;
using System.Collections;
using System.Collections.Generic;


public class TabController : IgnoreTimeScale {
	public List<UICheckbox> tabs;
    public bool canStartUncalled = true;
	public int StartedTabNumber = 0; // there should be one tab started as checked
    public delegate void OnTabSelected(int tabNumber);
    public OnTabSelected onTabSelected;
    public bool canDisabled = true; // whether tabs can be disabled

    private bool _inited = false;
    bool isFirstTime;
    private List<BoxCollider> _tabColliders = new List<BoxCollider>();

	// Use this for initialization
	void Start () {
        InitTabs();
	}

    void OnEnable() {
        TabsSetActive(true);
        isFirstTime = true;
    }

	private void InitTabs(){
        if (_inited) {
            return;
        }
		for(int i = 0; i < tabs.Count; i++){
            TabChecker tabChecker = new TabChecker(i, this);
            tabs[i].onStateChange = tabChecker.eventHandler;
        }
		if(!canStartUncalled){
            tabs[StartedTabNumber].isChecked = true;
		}
        TabsSetActive(true); 
        //onTabSelected += DisableTabs;
        _inited = true;
	}

    public void CheckTab(int num){
        if (num >= tabs.Count) {
            Debug.LogError("Tab intended to check does not exit");
            return;
        }
        if (!_inited) {
            InitTabs();
        }
        tabs[num].isChecked = true;
    }

	// after initTabs you can append tab;
	public void AppendTab(UICheckbox tab,bool startedChecked){
		if(!tabs.Contains(tab)){
			tabs.Add(tab);
			TabChecker tabChecker = new TabChecker(tabs.Count-1,this);
			tabs[tabs.Count-1].onStateChange = tabChecker.eventHandler;
			tab.isChecked = false;
			tab.radioButtonRoot = transform;
			if(startedChecked){
				tab.isChecked = true;
			}
		}
		
	}
	
	// Update is called once per frame
	void Update () {
        if (isFirstTime && !canStartUncalled) {
            tabs[StartedTabNumber].isChecked = true;
            isFirstTime = false;
        }
	}

    // paramets are only for matching the delegate needs
    void DisableTabs(int num) {
        TabsSetActive(false);
    }

    void TabsSetActive(bool state) {
        if (!canDisabled) {
            return;
        }
        if (_tabColliders.Count < tabs.Count) {
            _tabColliders.Clear();
            foreach (UICheckbox tab in tabs) {
                _tabColliders.Add(tab.GetComponent<BoxCollider>());
            }
        }
        foreach(BoxCollider collider in _tabColliders){
            collider.enabled = state;
        }
    }
}

// check whether that tab was selected and call a delegate with _tabNumber
public class TabChecker {
    int _tabNumber;
    public TabController _tabController;

    public TabChecker(int tabNumber, TabController tabController) {
        _tabNumber = tabNumber;
        _tabController = tabController;
    }
    
    public void eventHandler(bool state){
        if (state == true && _tabController.onTabSelected != null) {
            _tabController.onTabSelected(_tabNumber);
        }
    }

}