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  • UIApplicationDelegate协议

    //网络引用

    @protocol UIApplicationDelegate<NSObject>

    @optional

    //常用的:
    - (void)applicationDidFinishLaunching:(UIApplication *)application;//当程序完成载入后调用

    - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0);

    //当程序完成载入,并且可能有额外的启动选项时被调用,建议用此方法来初始化应用程序
    - (void)applicationDidBecomeActive:(UIApplication *)application;//应用程序转为激活状态时被调用
    - (void)applicationWillResignActive:(UIApplication *)application;//应用程序转为后台(非激活)状态时被调用

    - (void)applicationWillTerminate:(UIApplication *)application; //当程序将要退出是被调用,通常是用来保存数据和一些退出前的清理工作。这个需要要设置UIApplicationExitsOnSuspend的键值。
    - (void)applicationDidReceiveMemoryWarning:(UIApplication *)application;      // try to clean up as much memory as possible. next step is to terminate app//内存较低时调用

    - (void)applicationDidEnterBackground:(UIApplication *)application __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_4_0);//当程序被推送到后台的时候调用。所以要设置后台继续运行,则在这个函数里面设置即可
    - (void)applicationWillEnterForeground:(UIApplication *)application __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_4_0);//当程序从后台将要重新回到前台时候调用,这个刚好跟上面的那个方法相反。


    - (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url; //请求委托打开一个URL资源
    - (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_4_2); // no equiv. notification. return NO if the application can't open for some reason //请求委托打开一个URL资源


    - (void)applicationSignificantTimeChange:(UIApplication *)application; // midnight, carrier time update, daylight savings time change //当系统时间发生改变时执行


    //设置 StatusBar 状态
    - (void)application:(UIApplication *)application willChangeStatusBarOrientation:(UIInterfaceOrientation)newStatusBarOrientation duration:(NSTimeInterval)duration; //当StatusBar框方向将要变化时执行
    - (void)application:(UIApplication *)application didChangeStatusBarOrientation:(UIInterfaceOrientation)oldStatusBarOrientation; //当StatusBar框方向改变时执行

    - (void)application:(UIApplication *)application willChangeStatusBarFrame:(CGRect)newStatusBarFrame; // in screen coordinates //当StatusBar框方向将要改变时执行
    - (void)application:(UIApplication *)application didChangeStatusBarFrame:(CGRect)oldStatusBarFrame; //当StatusBar框方向改变时执行


    // one of these will be called after calling -registerForRemoteNotifications
    - (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0);//当一个应用程序成功的注册一个推送服务(APS) 发送到委托去
    - (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *)error __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0);//当一个应用程序注册一个推送服务(APS) 发送到委托中失败时执行

    - (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0);
    //当一个运行着的应用程序收到一个远程的通知 发送到委托去...
    - (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_4_0);//当一个运行着的程序接受一个本地的通知时执行

    - (void)applicationProtectedDataWillBecomeUnavailable:(UIApplication *)application __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_4_0);//通知委托,受保护的文件当前变为不可用的
    - (void)applicationProtectedDataDidBecomeAvailable:(UIApplication *)application    __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_4_0);//通知委托,受保护的文件当前变为可用的
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  • 原文地址:https://www.cnblogs.com/zcl410/p/4597241.html
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