AppDelegate方法

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AppDelegate方法

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- (BOOL)application:(UIApplication *)application willFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    NSLog(@"①告诉代理进程启动但还没进入状态保存");

    return YES;
}
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- (BOOL)application:(UIApplication *)application　didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    NSLog(@"②告诉代理启动基本完成程序准备开始运行");

    return YES;
}
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- (void)applicationWillResignActive:(UIApplication *)application {

    NSLog(@"③当应用程序将要入非活动状态执行，在此期间，应用程序不接收消息或事件，比如来电话");

}
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- (void)applicationDidBecomeActive:(UIApplication *)application {

    NSLog(@"④当应用程序进入活动状态执行");
}
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- (void)applicationDidEnterBackground:(UIApplication *)application {

    NSLog(@"⑤当程序被推送到后台的时候调用");

}

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- (void)applicationWillEnterForeground:(UIApplication *)application {

     NSLog(@"⑥当程序从后台将要重新回到前台时候调用");
}
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- (void)applicationWillTerminate:(UIApplication *)application {

    NSLog(@"⑦当程序将要退出是被调用");

}

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- (void)applicationDidFinishLaunching:(UIApplication *)application {

     NSLog(@"⑧当程序载入后执行");

}