创建TabBaritem和自定义Tabbar工具栏

Posted 2022-06-22 pengyuan_D

AppDelegate.m

#import "AppDelegate.h"

@implementation AppDelegate

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

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    
    //创建视图控制器
    UIViewController *homeCtrl =[[UIViewController alloc] init];
    UIViewController *messageCtrl =[[UIViewController alloc] init];
    UIViewController *searchCtrl =[[UIViewController alloc] init];
    UIViewController *discoverCtrl =[[UIViewController alloc] init];
    UIViewController *moreCtrl =[[UIViewController alloc] init];
    
    //创建标签控制器
    UITabBarController *tabbarCtrl = [[UITabBarController alloc] init];
    tabbarCtrl.viewControllers = @[homeCtrl,messageCtrl,searchCtrl,discoverCtrl,moreCtrl];
    self.window.rootViewController = tabbarCtrl;
    
    /*_______________________<span style="color:#cc0000;">创建tabbaritem</span>__________________________*/
    //1.第一种：使用系统方法
    UITabBarItem *tabbarItem1 = [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemFeatured tag:1];
    homeCtrl.tabBarItem = tabbarItem1;
    
    UITabBarItem *tabbarItem2 = [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemBookmarks tag:2];
    messageCtrl.tabBarItem = tabbarItem2;
    
    UITabBarItem *tabbarItem5 = [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemMore tag:5];
    moreCtrl.tabBarItem = tabbarItem5;

    //2.第二种：使用自定义图片和标题
    UITabBarItem *tabbarItem3 = [[UITabBarItem alloc] initWithTitle:@"search" image:[UIImage imageNamed:@"tabbar_discover_highlighted"] tag:3];
    searchCtrl.tabBarItem = tabbarItem3;
    
    UITabBarItem *tabbarItem4 = [[UITabBarItem alloc] initWithTitle:@"个人中心" image:[UIImage imageNamed:@"tabbar_profile_highlighted"] tag:4];
    discoverCtrl.tabBarItem = tabbarItem4;

    /*_______________________<span style="color:#cc0000;">创建tabbar工具栏</span>__________________________*/
    UITabBar *tabbar = tabbarCtrl.tabBar;   //取得标签工具栏
    
    //设置背景颜色
    //在ios7中没用
//    tabbar.tintColor = [UIColor redColor];
    
    //使用图片设置工具栏的背景颜色
    tabbar.backgroundImage = [UIImage imageNamed:@"navbg"];
    
    //设置选中的item的图片颜色
    tabbar.selectedImageTintColor = [UIColor redColor];
    
    //设置选中后覆盖的视图
    tabbar.selectionIndicatorImage = [UIImage imageNamed:@"选中"];
    
    //设置提示图标
    tabbarItem2.badgeValue = @"new";
    
    
    return YES;



@end