听了这套课程以后有种醍醐灌顶的感觉。之前看的知识都串联起来了。

https://github.com/ZhangJin233/MyDemo iOS13版本，供大家参考

感谢朱老师，深入浅出讲解了iOS体系课程，让我们这些迷茫的开发者清晰了好多。

老师真的讲的好细致

像追剧一样追课，给老师的课赞一个👍后期如果有再出Object-c语法方面的就更棒了，毕竟语法好枯燥啊，看完有的又忘记了。

iOS13中appdelegate的职责发现了改变： iOS13之前，Appdelegate的职责全权处理App生命周期和UI生命周期； iOS13之后，Appdelegate的职责是： 1、处理 App 生命周期 2、新的 Scene Session 生命周期 那UI的生命周期交给新增的Scene Delegate处理 - (void)scene:(UIScene *)scene willConnectToSession:(UISceneSession *)session options:(UISceneConnectionOptions *)connectionOptions { // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`. // If using a storyboard, the `window` property will automatically be initialized and attached to the scene. // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead). UIWindowScene *windowScene = (UIWindowScene *)scene; self.window = [[UIWindow alloc] initWithWindowScene:windowScene]; self.window.frame = windowScene.coordinateSpace.bounds; UITabBarController *tabbarController = [[UITabBarController alloc] init]; UIViewController *controller1 = [[UIViewController alloc] init]; controller1.view.backgroundColor = [UIColor redColor]; controller1.tabBarItem.title = @"新闻"; UIViewController *controller2 = [[UIViewController alloc] init]; controller2.view.backgroundColor = [UIColor yellowColor]; controller2.tabBarItem.title = @"视频"; UIViewController *controller3 = [[UIViewController alloc] init]; controller3.view.backgroundColor = [UIColor blueColor]; controller3.tabBarItem.title = @"推荐"; UIViewController *controller4 = [[UIViewController alloc] init]; controller4.view.backgroundColor = [UIColor greenColor]; controller4.tabBarItem.title = @"我的"; // 将四个页面的 UIViewController 加入到 UITabBarController 之中 [tabbarController setViewControllers: @[controller1, controller2, controller3, controller4]]; self.window.rootViewController = tabbarController; [self.window makeKeyAndVisible]; }

有收获，适合我

收获很大，看完就找到了心仪的工作，期待老师可以再出点优化方面等高阶课程

一路走来，收获颇丰，感恩老师！

确实是国内最好最新的iOS入门课程了，高级Android开发工程师路过，毫无压力地上手了，老师加油！！！