• 建立一个继承UITabBarController类 ，并且实现委UITabBarDelegate@H_404_4@

//
// ChartViewController.swift
// iLiveTraffic
//
// Created by 徐泽宇 on 15/8/14.
// Copyright (c) 2015年 徐泽宇. All rights reserved.
//

import UIKit

class ChartTabBarController: UITabBarController,UITabBarDelegate {


    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    override func tabBar(tabBar: UITabBar,didSelectItem item: UITabBarItem!) {
        NSLog("tabbar item 被点击")
        switch item.tag{
            case 0:
                //是退出按钮
                self.dismissViewControllerAnimated(true,completion: nil)
            case 1:
                NSLog("点击图表1")
            case 2:
                NSLog("点击图表2")
            case 3:
                NSLog("点击图表3")
            case 4:
                NSLog("点击图表4")
            default:
                NSLog("未知按钮")
        }
    }
}

• 在storyboard中建立UITabBarController和各个UIViewController之间的关系
  @H_404_4@
• 在需要打开这个UITabBarController 地方弹开这个TabBarController@H_404_4@

var chartTabBarController: ChartTabBarController! = UIStoryboard(name: "Main",bundle: nil).instantiateViewControllerWithIdentifier("chartTabBarController") as! ChartTabBarController
presentViewController(chartTabBarController,animated: true,completion: nil)

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