IOS15最标准的纯代码搭建项目

环境

ios 15
xCode13

Xnip2021-12-06_09-28-46.jpg Xnip2021-12-06_09-33-51.jpg

如今手机更新速度快。屏幕大小不一，要求代码能力也越来越高。
既要适配iphone12，13以上产品，还要兼顾iphone8等产品。

storyBoard今天不提，可以做到二者都兼容。
创建项目，把Main有关的都删掉，info.plist都删掉，
在SceneDelegate.m里面书写。

- (void)scene:(UIScene *)scene willConnectToSession:(UISceneSession *)session options:(UISceneConnectionOptions *)connectionOptions {
    UIWindowScene *windowScene = (UIWindowScene *)scene;
    self.window = [[UIWindow alloc] initWithWindowScene:windowScene];
    self.window.rootViewController = [[LaunchViewController alloc]init];
    [self.window makeKeyAndVisible];
}

创建一个控制器，继承于: UITabBarController,命名 LJMainTabBarController
在viewDidLoad调用如下函数。

- (void)addVCs {
    NSArray* navNameArray = @[@"LJNewsViewController",
                              @"LJReaderViewController",
                              @"LJMediaViewController",
                              @"LJFoundViewController",
                              @"LJMeViewController"];
    NSMutableArray* navArray = [[NSMutableArray alloc] init];
    
    NSArray* titleArray = @[@"新闻",@"阅读",@"视听",@"发现",@"我"];
    NSArray* imageArray = @[@"news",@"reader",@"media",@"found",@"me"];
    for ( int i = 0; i < 5; i++) {
        //添加视图控制器
        UIViewController* vc = [[NSClassFromString(navNameArray[i]) alloc] init];
        LJNavigationController* nav = [[LJNavigationController alloc] initWithRootViewController:vc];
        [navArray addObject:nav];
        //设置tabbarItem
        NSString* imgNormalName = [NSString stringWithFormat:@"tabbar_icon_%@_normal",imageArray[i]];
        NSString* imgHighlightName = [NSString stringWithFormat:@"tabbar_icon_%@_highlight",imageArray[i]];
        UITabBarItem* tabBarItem = [[UITabBarItem alloc] initWithTitle:titleArray[i] image:[UIImage imageNamed:imgNormalName] tag:i+100];
        tabBarItem.selectedImage = [UIImage imageNamed:imgHighlightName];
        nav.tabBarItem = tabBarItem;
    }
    self.viewControllers = navArray;
    self.tabBar.tintColor = kNetEaseRedColor;
}