UI-自定义TabBar

MyCustomTabBar.h文件

#import <UIKit/UIKit.h>

@interface MyCustomTabBar : UITabBarController

@end

MyCustomTabBar.m文件

#import "MyCustomTabBar.h"

#define kDeviceHeigh [UIScreen mainScreen].bounds.size.height

@interface MyCustomTabBar ()<UITabBarDelegate>

@end

@implementation MyCustomTabBar

-(void)viewDidLoad{

[super viewDidLoad ];

//自定义TabBar

UITabBar *tabBar = [[UITabBar alloc]initWithFrame:self.tabBar.frame];

tabBar.userInteractionEnabled = YES;

[self.view addSubview:tabBar];

tabBar.backgroundImage = [UIImage imageNamed:@"tabbg"];

// 添加5个

for (int i = 1 ; i <= 5 ; i ++ ) {

// 获取按钮普通状态和选中状态的两个图片的名称

NSString *imgName = [NSString stringWithFormat:@"TabBar%d", i];

NSString *selImgName = [NSString stringWithFormat:@"TabBar%dSel", i];

// 创建按钮

UIButton *tabBtn = [[UIButton alloc]init ];

CGFloat width = self.view.bounds.size.width / 5;

// 设置按钮的frame

tabBtn.frame =CGRectMake((i-1) * width , 0 , width , 44);

if ( i == 3 ) {

tabBtn.frame = CGRectMake(tabBtn.frame.origin.x , tabBtn.frame.origin.y - 20, tabBtn.frame.size.width, 44 + 20 );

[tabBtn setBackgroundImage:[UIImage imageNamed:@"logoff_btn_n"] forState:UIControlStateNormal];

}else{

// 设置按钮普通状态和选中状态显示的图片

[tabBtn setBackgroundImage:[UIImage imageNamed:imgName] forState:UIControlStateNormal];

[tabBtn setBackgroundImage:[UIImage imageNamed:selImgName] forState:UIControlStateSelected ];

}

tabBtn.tag = 10 + i;

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

[tabBar addSubview:tabBtn];

}

}

-(void)btnClicked:(UIButton *)button{

for (int i = 1  ; i <= 5 ; i++ ) {

UIButton *btn = (UIButton *)  [ self.view viewWithTag:10 + i];

if (btn != button) {

btn.selected = NO;

}

}

button.selected = YES;

if (button.tag == 13) {

UIViewController *vc = [[UIViewController alloc]init];

vc.view.backgroundColor = [UIColor orangeColor];

[self presentViewController:vc animated:YES completion:nil];

return;

}

self.selectedIndex = button.tag - 11;

}

@end

AppDelegate.m文件

#import "AppDelegate.h"

#import "MyCustomTabBar.h"

#import "FifthVC.h"

#import "SecondVc.h"

#import "ThirdVC.h"

#import "FourthVC.h"

#import "FirstVC.h"

@interface AppDelegate ()

@end

@implementation AppDelegate

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

// Override point for customization after application launch.

//先创建五个控制器对象

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

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

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

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

FifthVC *fifthVC = [[FifthVC alloc]init];

// 创建TabBar控制器对象

MyCustomTabBar *tabBarVC = [[MyCustomTabBar alloc]init];

// 设置Tabbar的子控制器对象, 需要注意的是，TabBar控制器最多只能显示五个子视图，如果超过5个，它会只显示4个，把其他的放More选项中

tabBarVC.viewControllers = @[firstVC, secondVC, thirdVC, fourthVC, fifthVC];

self.window = [[UIWindow alloc]initWithFrame:[UIScreen mainScreen].bounds];

self.window.rootViewController = tabBarVC;

[self.window makeKeyAndVisible];

return YES;

}