xcode11鏂伴」鐩垹闄ain.storyboard 涓ょ鏂规硶
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/** 寮冪敤storboard 1銆乮nfo.plist鍘婚櫎 <key>UIApplicationSceneManifest</key> <dict> <key>UIApplicationSupportsMultipleScenes</key> <false/> <key>UISceneConfigurations</key> <dict> <key>UIWindowSceneSessionRoleApplication</key> <array> <dict> <key>UISceneConfigurationName</key> <string>Default Configuration</string> <key>UISceneDelegateClassName</key> <string>SceneDelegate</string> <key>UISceneStoryboardFile</key> <string>Main</string> </dict> </array> </dict> </dict> 2銆佸惎鍔ㄩ〉娉ㄩ噴 - (UISceneConfiguration *)application:(UIApplication *)application configurationForConnectingSceneSession:(UISceneSession *)connectingSceneSession options:(UISceneConnectionOptions *)options { // Called when a new scene session is being created. // Use this method to select a configuration to create the new scene with. return [[UISceneConfiguration alloc] initWithName:@"Default Configuration" sessionRole:connectingSceneSession.role]; } - (void)application:(UIApplication *)application didDiscardSceneSessions:(NSSet<UISceneSession *> *)sceneSessions { // Called when the user discards a scene session. // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions. // Use this method to release any resources that were specific to the discarded scenes, as they will not return. } */
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涔嬪悗鍦ˋppdelegate鐨刣idFinishLaunchingWithOptions鏂规硶涓嚜瀹氫箟window骞惰缃负keyWindow鍜岃瀹冩樉绀猴紝濡備笅鍥?
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Overview
A UISceneSession object manages a unique runtime instance of your scene. When the user adds a new scene to your app, or when you request one programmatically, the system creates a session object to track that scene. The session contains a unique identifier and the configuration details of the scene. UIKit maintains the session information for the lifetime of the scene itself, destroying the session in response to the user closing the scene in the app switcher.
You do not create session objects directly. UIKit creates sessions in response to user interactions with your app. You can also ask UIKit to create a new scene and session programmatically by calling the requestSceneSessionActivation:userActivity:options:errorHandler: method of UIApplication. UIKit initializes the session with default configuration data based on the contents of your app鈥榮 Info.plist file.
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鍥犳xcode11涓瀹炵幇鑷繁鐨勬病鏈夐粯璁ain.storyboard鐨勯」鐩紝灏卞緱灏哠ceneDelegate閲岀殑lifecycle杞氦缁橝ppDelegate锛屾寜鐓т笂闈㈡墍璇达紝杩欎竴姝ユ搷浣滃氨鏄紝鍒犻櫎鎴栨敞閲婁竴涓嬫埅鍥鹃噷鐨勪袱涓柟娉?/p>
鎺ヨ繎鐫€鍒犻櫎鍦╥nfo.plist閲岀殑Application Scene Manifest鏉＄洰
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涔嬪悗鍦ˋppDelegate.swift閲屾坊鍔爓indow灞炴€э紝鍥犱负xcode榛樿鍒犻櫎浜嗚繖涓睘鎬э紝鐜板湪浣犻渶瑕佸皢瀹冮噸鏂版坊鍔犲洖鏉ユ墠琛岋紝濡傛灉鏄疧C鍐欑殑璇濓紝灏卞湪AppDelegate.h閲屾坊鍔犺繖涓獁indow灞炴€с€?/p>
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- (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). self.window = [[UIWindow alloc] initWithWindowScene:(UIWindowScene *)scene]; self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds]; UIViewController *rootVc = [[UIViewController alloc]init]; rootVc.view.backgroundColor = [UIColor purpleColor]; UINavigationController *rootNav = [[UINavigationController alloc]initWithRootViewController:rootVc]; [self.window setRootViewController:rootNav]; [self.window makeKeyAndVisible]; }
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