makeKeyAndVisible

最新推荐文章于 2023-11-21 11:46:36 发布
原创 最新推荐文章于 2023-11-21 11:46:36 发布 · 5k 阅读 · 0 ·
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#iphone #os

本文介绍了一个方便的方法，用于将当前窗口设置为前台显示的主要窗口，并提供了如何使用隐藏属性来实现窗口隐藏与显示的操作指南。

 makeKeyAndVisible

Makes the receiver the key window and makes that window visible.

- (void)makeKeyAndVisible

Discussion

This is a convenience method to make the receiver the main window and displays it in front of other windows. You can also hide and reveal a window using the inheritedhidden UIView property.

Availability
  • Available in iPhone OS 2.0 and later.
See Also
UIWindow 原理与巧妙使用 makeKeyAndVisible、makeKeyWindow、becomeKeyWindow、resignKeyWindow.你真的懂了吗？...
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UIWindow 简介 UIWindow 是 UIView 的子类,其在 UIView 添加了一些视图层级,管理视图,转发 UIEvent 对象的属性和 Method。 其官方定义是这样的: The backdrop for your app’s user interface and the object ...
window.rootViewController = navController window.makeKeyAndVisible() navController.setViewControllers([mainVC], animated: true). 短暂黑屏如何解决
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window.makeKeyAndVisible() navController.setViewControllers([mainVC], animated: false) ``` 这样，在视图控制器切换时就不会出现动画效果，从而避免了短暂的黑屏。 2. 在切换视图控制器前添加一个半透明的...
// // AppDelegate.swift // SplitViews // // Created by Sergey Lukaschuk on 10.12.2021. // import UIKit @main class AppDelegate: UIResponder, UIApplicationDelegate { var window: UIWindow? func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { let masterController = MasterController() let masterNavigationController = UINavigationController(rootViewController: masterController) let detailController = DetailController() let detailNavigationController = UINavigationController(rootViewController: detailController) let splitViewController = UISplitViewController() splitViewController.viewControllers = [masterNavigationController, detailNavigationController] splitViewController.preferredDisplayMode = UISplitViewController.DisplayMode.oneBesideSecondary splitViewController.delegate = self splitViewController.preferredPrimaryColumnWidthFraction = 0.5 splitViewController.maximumPrimaryColumnWidth = 2000 self.window = UIWindow(frame: UIScreen.main.bounds) self.window!.rootViewController = splitViewController self.window!.makeKeyAndVisible() return true } } extension AppDelegate: UISplitViewControllerDelegate { func splitViewController(_ splitViewController: UISplitViewController, collapseSecondary secondaryViewController: UIViewController, onto primaryViewController: UIViewController) -> Bool { return true } }
最新发布
09-29
.makeKeyAndVisible() ``` - 创建窗口并设置 `splitViewController` 为根控制器，显示应用界面。 #### 5. 实现代理方法 ```swift func splitViewController(_ splitViewController: UISplitViewController, ...
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#import <UIKit/UIKit.h> #import <ReactiveObjC/ReactiveObjC.h> NS_ASSUME_NONNULL_BEGIN #pragma mark - Model @interface StoryScene : NSObject @property (nonatomic, copy) NSString *sceneTitle; @property (nonatomic, copy) NSString *visualDescription; @property (nonatomic, strong) NSArray<NSString *> *symbolicElements; @end @implementation StoryScene @end @interface DigitalTool : NSObject @property (nonatomic, copy) NSString *toolName; @property (nonatomic, copy) NSString *usageDescription; @property (nonatomic, strong) NSArray<NSString *> *appliedScenes; @end @implementation DigitalTool @end @interface InteractionPlan : NSObject @property (nonatomic, copy) NSString *platform; @property (nonatomic, strong) NSArray<NSString *> *engagementMethods; @end @implementation InteractionPlan @end #pragma mark - ViewModel @interface StoryViewModel : NSObject @property (nonatomic, strong) NSArray<StoryScene *> *scenes; @property (nonatomic, strong) RACCommand *loadScenesCommand; @end @implementation StoryViewModel - (instancetype)init { self = [super init]; if (self) { @weakify(self); _loadScenesCommand = [[RACCommand alloc] initWithSignalBlock:^RACSignal *(id _) { @strongify(self); return [RACSignal createSignal:^RACDisposable *(id<RACSubscriber> subscriber) { [self fetchScenesFromService]; [subscriber sendCompleted]; return nil; }]; }]; } return self; } - (void)fetchScenesFromService { StoryScene *scene1 = [StoryScene new]; scene1.sceneTitle = @"黑暗中的微光"; scene1.visualDescription = @"黑白基调牢房，霉变米饭特写"; StoryScene *scene2 = [StoryScene new]; scene2.sceneTitle = @"铁窗下的课堂"; scene2.symbolicElements = @[@"树枝笔", @"棉灰墨", @"半截铅笔"]; _scenes = @[scene1, scene2]; } @end @interface ToolViewModel : NSObject @property (nonatomic, strong) NSArray<DigitalTool *> *tools; @property (nonatomic, strong) RACSubject *toolSelectedSubject; @end @implementation ToolViewModel - (instancetype)init { self = [super init]; if (self) { _toolSelectedSubject = [RACSubject subject]; [self setupTools]; } return self; } - (void)setupTools { DigitalTool *tool1 = [DigitalTool new]; 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} @end #pragma mark - Coordinator @interface AppCoordinator : NSObject @property (nonatomic, strong) UINavigationController *navigationController; - (void)start; @end @implementation AppCoordinator - (void)start { MainViewController *mainVC = [MainViewController new]; mainVC.storyVM = [StoryViewModel new]; mainVC.toolVM = [ToolViewModel new]; _navigationController = [[UINavigationController alloc] initWithRootViewController:mainVC]; } @end #pragma mark - AppDelegate @interface AppDelegate : UIResponder <UIApplicationDelegate> @property (nonatomic, strong) UIWindow *window; @property (nonatomic, strong) AppCoordinator *coordinator; @end @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { _window = [[UIWindow alloc] initWithFrame:UIScreen.mainScreen.bounds]; _coordinator = [AppCoordinator new]; [_coordinator start]; _window.rootViewController = _coordinator.navigationController; [_window makeKeyAndVisible]; return YES; } @end NS_ASSUME_NONNULL_END
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在iOS开发中，MVVM架构与响应式编程框架（如ReactiveObjC）的结合，能够有效降低视图层与业务逻辑之间的耦合度，同时提升代码的可维护性和可测试性。以下是一个基于Objective-C、ReactiveObjC和UIKit的示例，展示...
ios-day11-01(UIWindow的常用方法。makeKeyWindow、makeKeyAndVisible、获取当前应用的主窗口和所有窗口)
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UIWindow的常用方法： - (void)makeKeyWindow; 让当前UIWindow变成keyWindow（主窗口） - (void)makeKeyAndVisible;  让当前UIWindow变成keyWindow，并显示出来 UIWindow的获得： [UIApplication sharedAppli
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weixin_30362083的博客
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[self.window makeKeyAndVisible]; 这个是便捷方法，去使被使用对象的主窗口显示到屏幕的最前端。你也可以使用hiddenUIView方法隐藏这个窗口 转载于:https://www.cnblogs.com/mawenqiangios/p/5195454.html...
makeKeyAndVisible的功能
weixin_30251587的博客
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makeKeyAndVisible的作用 [self.window makeKeyAndVisible] 由于iPhone是单窗口程序，所以也就只有这么一个Window对象，而且是UIWindow，不是NSWindow。而根据文档上所说：“这个是便捷方法，去使被使用对象的主窗口显示到屏幕的最前端。你也可以使用hiddenUIView方法隐藏这个窗口”所以基本上来说，对于编程者的区别仅仅在于在其...
UIWindow的makeKeyAndVisible不调用rootviewController 的viewDidLoad的问题
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UIWindow的makeKeyAndVisible不调用rootviewController 的viewDidLoad的问题
【三种加载自定义控制器的方式 Objective-C语言】
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xcode两个小知识
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self.window makeKeyAndVisible
iOS 【程序启动原理/手动创建UIWindow/UIApplicationMain做了些什么/makeKeyAndVisible底层实现】
CoderZYWang
07-23 2426
一、什么是UIWindow（★★★ ） UIWindow是一种特殊的UIView，通常在一个app中至少有一个UIWindow iOS程序启动完毕后，创建的第一个视图控件就是UIWindow，接着创建控制器的view， 最后将控制器的view添加到UIWindow上，于是控制器的view就显示在屏幕上了 一个iOS程序之所以能显示到屏幕上，完全是因为它有UIWindow 二、程序启动
UIWindow
globalYK的博客
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Window的作用 在iOS中，一个window（也就是一个UIWindow对象）主要有这样几个作用： 展示app的可视内容；将事件分发给视图以及其他对象；和app的view controller一起处理屏幕旋转。 其实在大多数情况下，第三方程序员不用做任何事情，window就能完成这些工作。所以很多时候，只有当这个app需要支持另一个外设的屏幕的时候，程序员才会对window进行操
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