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最新推荐文章于 2023-06-26 19:32:18 发布

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// AppDelegate.m

// tabBarChang

// Created by CJW on 16/12/29.

#import "AppDelegate.h"

#import "OneViewController.h"

#import "TwoViewController.h"

#import "ThreeViewController.h"

#import "FourViewController.h"

@interface AppDelegate ()

@end

@implementation AppDelegate

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

// Override point for customization after application launch.

//创建window

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

self.window.backgroundColor=[UIColor whiteColor];

[self.window makeKeyAndVisible];

//创建tabBarController;它是一个容器，承装viewController

UITabBarController * tabBarC=[[UITabBarController alloc]init];

self.window.rootViewController=tabBarC;

//创建tabBarController的viewControllrs

OneViewController * oneVC=[[OneViewController alloc]init];

//设置按钮的图片和标题

oneVC.tabBarItem=[[UITabBarItem alloc]initWithTitle:@"首页" image:[UIImage imageNamed:@"tab_0"] selectedImage:[UIImage imageNamed:@"tab_c0"]];

TwoViewController * twoVC=[[TwoViewController alloc]init];

twoVC.tabBarItem=[[UITabBarItem alloc]initWithTitle:@"收藏" image:[UIImage imageNamed:@"tab_1"] selectedImage:[UIImage imageNamed:@"tab_c1"]];

ThreeViewController * threeVC=[[ThreeViewController alloc]init];

threeVC.tabBarItem=[[UITabBarItem alloc]initWithTitle:@"位置" image:[UIImage imageNamed:@"tab_2"] selectedImage:[UIImage imageNamed:@"tab_c2"]];

FourViewController * fourVC=[[FourViewController alloc]init];

fourVC.tabBarItem=[[UITabBarItem alloc]initWithTitle:@"设置" image:[UIImage imageNamed:@"tab_3"] selectedImage:[UIImage imageNamed:@"tab_c3"]];

tabBarC.viewControllers=@[oneVC,twoVC,threeVC,fourVC];

tabBarC.selectedIndex=0;

[UITabBar appearance].tintColor = [UIColor orangeColor];

return YES;

}

@end