CustomTabBarViewController

//  AppDelegate.m

//  CustomTabBar

//

//  Created by qianfeng on 15/7/9.

//  Copyright (c) 2015年 qianfeng. All rights reserved.

//



#import "AppDelegate.h"

#import "CustomTabBarViewController.h"

@interface AppDelegate ()



@end



@implementation AppDelegate





- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    // Override point for customization after application launch.

    CustomTabBarViewController *customTabBar= [[CustomTabBarViewController alloc]init];

    self.window.rootViewController=customTabBar;

    return YES;

}







//

//  ViewController.h

//  CustomTabBar

//

//  Created by qianfeng on 15/7/9.

//  Copyright (c) 2015年 qianfeng. All rights reserved.

//



#import <UIKit/UIKit.h>



@interface ViewController : UIViewController





@end





//  ViewController.m

//  CustomTabBar

//

//  Created by qianfeng on 15/7/9.

//  Copyright (c) 2015年 qianfeng. All rights reserved.

//



#import "ViewController.h"



@interface ViewController ()



@end



@implementation ViewController



- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

}



- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}



@end

 

//  CustomTabBarViewController.h

//  CustomTabBar

//

//  Created by qianfeng on 15/7/9.

//  Copyright (c) 2015年 qianfeng. All rights reserved.

//



#import <UIKit/UIKit.h>



@interface CustomTabBarViewController : UITabBarController



@end





//

//  CustomTabBarViewController.m

//  CustomTabBar

//

//  Created by qianfeng on 15/7/9.

//  Copyright (c) 2015年 qianfeng. All rights reserved.

//



#import "CustomTabBarViewController.h"

#import "FirstViewController.h"

#import "SecondViewController.h"

#import "ThirdViewController.h"

#import "FourthViewController.h"

@interface CustomTabBarViewController ()



@end



@implementation CustomTabBarViewController



- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view.

    //隐藏系统tabbar

    self.tabBar.hidden=YES;

    

    //创建视图控制器数组

    [self creatViewController];

    

    //

    //创建tabbar

    UIImageView *bgView =[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"tabbg"]];

    bgView.tag=499;

    bgView.frame=CGRectMake(0, self.view.frame.size.height-49, self.view.frame.size.width, 49);

    [self.view addSubview:bgView];

    self.view.backgroundColor=[UIColor cyanColor];

    //打开用户交互使能

    bgView.userInteractionEnabled=YES;

    CGFloat space =(self.view.frame.size.width-4*30)/5;

    

    for (int i=0; i<4; i++) {

        UIButton *btn =[UIButton buttonWithType:UIButtonTypeCustom];

        btn.frame=CGRectMake(space+i*(30+space),9, 30, 30);

        NSString *imageName =[NSString stringWithFormat:@"tab_%i",i];

        NSString *selectimageName =[NSString stringWithFormat:@"tab_c%i",i];

        //设置正常状态图片

        [btn setBackgroundImage:[UIImage imageNamed:imageName] forState:UIControlStateNormal];

        //设置选中状态图片

        [btn setBackgroundImage:[UIImage imageNamed:selectimageName] forState:UIControlStateSelected];

        //添加点击事件

        [btn addTarget:self action:@selector(btnClicked:) forControlEvents:UIControlEventTouchUpInside];

        btn.tag=100+i;

        

        //设置选中状态的btn

        if(btn.tag==100)

        {

            btn.selected=YES;

        }

        [bgView addSubview:btn];

    }

    

    UILabel *label =[[UILabel alloc]initWithFrame:CGRectMake(space, 40, 30, 4)];

    label.backgroundColor=[UIColor orangeColor];

    label.tag=498;

    [bgView addSubview:label];

    

    

}



-(void)btnClicked:(UIButton *)btn

{

    

    //self.selectedIndex=3;

    //记录选中的button

    NSInteger index =btn.tag-100;

    UIView *bgView =[self.view viewWithTag:499];

    for (UIView *view in bgView.subviews) {

        if(view.tag!=498)

        {

            if(btn.tag==view.tag)

            {

                //btn.selected=YES;

                ((UIButton *)view).selected=YES;

                

            }

            else{

                //btn.selected=NO;

                ((UIButton *)view).selected=NO;

            }

        }

    }

    self.selectedIndex=index;

    

    

    UILabel *label =(UILabel *)[bgView viewWithTag:498];

    CGFloat space =(self.view.frame.size.width-4*30)/5;

    [UIView animateWithDuration:0.3 animations:^(void){

        CGRect frame =label.frame;

        frame.origin.x  =space+(space +30)*index;

        label.frame=frame;

    }];

}



-(void)creatViewController

{

    FirstViewController *firstVC=[[FirstViewController alloc]init];

    SecondViewController *secondVC=[[SecondViewController alloc]init];

    ThirdViewController *thirdVC=[[ThirdViewController alloc]init];

    FourthViewController *fourthVC =[[FourthViewController alloc]init];

    

    NSArray *viewController =[NSArray arrayWithObjects:firstVC,secondVC,thirdVC,fourthVC, nil];

    self.viewControllers=viewController;

    //self.tabBarController.viewControllers=viewController;

}



- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}



/*

 #pragma mark - Navigation

 

 // In a storyboard-based application, you will often want to do a little preparation before navigation

 - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {

 // Get the new view controller using [segue destinationViewController].

 // Pass the selected object to the new view controller.

 }

 */



@end

 

//  FourthViewController.h

//  CustomTabBar

//

//  Created by qianfeng on 15/7/9.

//  Copyright (c) 2015年 qianfeng. All rights reserved.

//



#import <UIKit/UIKit.h>



@interface FourthViewController : UIViewController



@end





//  FourthViewController.m

//  CustomTabBar

//

//  Created by qianfeng on 15/7/9.

//  Copyright (c) 2015年 qianfeng. All rights reserved.

//



#import "FourthViewController.h"



@interface FourthViewController ()



@end



@implementation FourthViewController



- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view.

    self.view.backgroundColor=[UIColor redColor];

}



- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}







//  ThirdViewController.h

//  CustomTabBar

//

//  Created by qianfeng on 15/7/9.

//  Copyright (c) 2015年 qianfeng. All rights reserved.

//



#import <UIKit/UIKit.h>



@interface ThirdViewController : UIViewController



@end







//  ThirdViewController.m

//  CustomTabBar

//

//  Created by qianfeng on 15/7/9.

//  Copyright (c) 2015年 qianfeng. All rights reserved.

//



#import "ThirdViewController.h"



@interface ThirdViewController ()



@end



@implementation ThirdViewController



- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view.

    self.view.backgroundColor=[UIColor blueColor];

}



- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}







//  SecondViewController.h

//  CustomTabBar

//

//  Created by qianfeng on 15/7/9.

//  Copyright (c) 2015年 qianfeng. All rights reserved.

//



#import <UIKit/UIKit.h>



@interface SecondViewController : UIViewController



@end







//  SecondViewController.m

//  CustomTabBar

//

//  Created by qianfeng on 15/7/9.

//  Copyright (c) 2015年 qianfeng. All rights reserved.

//



#import "SecondViewController.h"



@interface SecondViewController ()



@end



@implementation SecondViewController



- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view.

    self.view.backgroundColor=[UIColor cyanColor];

}



- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}





//  FirstViewController.h

//  CustomTabBar

//

//  Created by qianfeng on 15/7/9.

//  Copyright (c) 2015年 qianfeng. All rights reserved.

//



#import <UIKit/UIKit.h>



@interface FirstViewController : UIViewController



@end





//  FirstViewController.m

//  CustomTabBar

//

//  Created by qianfeng on 15/7/9.

//  Copyright (c) 2015年 qianfeng. All rights reserved.

//



#import "FirstViewController.h"



@interface FirstViewController ()



@end



@implementation FirstViewController



- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view.

    self.view.backgroundColor=[UIColor yellowColor];

}



- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}