UIViewController

AppDelegate.m

 

//程序开启后执行

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    return YES;
}
- (void)applicationWillResignActive:(UIApplication *)application {
    // 当前应用程序进入非活动状态，挂到后台，不再接收事件（按钮不能再交互，但是推送和下载还在）
}
- (void)applicationDidEnterBackground:(UIApplication *)application {
    //应用程序被推入后台（远程推送、线程下载等后台活动仍然运行）
}
- (void)applicationWillEnterForeground:(UIApplication *)application {
    //当应用程序将要从后台挂起的状态重新回到前台的时候调用
}
- (void)applicationDidBecomeActive:(UIApplication *)application {
    //应用程序进入活动状态
}
- (void)applicationWillTerminate:(UIApplication *)application {
    //应用程序将要被推退出时调用,通常用来保存数据和推出前的清理工作
}

@end

 

/*************************************************************/

 

ViewController.m

 

- (void)viewDidLoad {//视图加载入口<1>
    [super viewDidLoad];
}
-(void)viewWillAppear:(BOOL)animated{}//视图将要出现<2>
-(void)viewDidAppear:(BOOL)animated{}//视图已经出现<3>
-(void)viewWillDisappear:(BOOL)animated{}//视图将要消失<4>
-(void)viewDidDisappear:(BOOL)animated{}//视图已经消失<5>
- (void)didReceiveMemoryWarning {//内存警告
    [super didReceiveMemoryWarning];
}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{}//开始触摸
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{}//正在触摸
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{}//结束触摸
-(void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event{}//滑动取消

@end