iOS如何监听用户点击应用图标

AppDelegate.m

- (void)applicationWillResignActive:(UIApplication*)application{
    NSLog(@"从应用前台，切换到后台");
}
- (void)applicationDidBecomeActive:(UIApplication*)application{
    NSLog(@"点击应用图标，进入打开应用");

}

扩展运行程序的逻辑

//首次运行：
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
- (void)applicationDidBecomeActive:(UIApplication *)application
 
//首次关闭（home）：
- (void)applicationWillResignActive:(UIApplication *)application
- (void)applicationDidEnterBackground:(UIApplication *)application
 
//再次运行：
- (void)applicationWillEnterForeground:(UIApplication *)application
- (void)applicationDidBecomeActive:(UIApplication *)application
 
//再次关闭：
- (void)applicationWillResignActive:(UIApplication *)application
- (void)applicationDidEnterBackground:(UIApplication *)application

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions  
{  
    // Override point for customization after application launch.  
    NSLog(@"\n ===> 程序开始 !");   
      
    return YES;  
}  
                              
- (void)applicationWillResignActive:(UIApplication *)application  
{  
      
    NSLog(@"\n ===> 程序暂行 !");   
}  
  
- (void)applicationDidEnterBackground:(UIApplication *)application  
{  
      
     NSLog(@"\n ===> 程序进入后台 !");   
}  
  
- (void)applicationWillEnterForeground:(UIApplication *)application  
{  
      
     NSLog(@"\n ===> 程序进入前台 !");   
}  
  
- (void)applicationDidBecomeActive:(UIApplication *)application  
{  
    NSLog(@"\n ===> 程序重新激活 !");   
      
}  
  
- (void)applicationWillTerminate:(UIApplication *)application  
{  
    NSLog(@"\n ===> 程序意外暂行 !");   
  
    UIDevice *device = [UIDevice currentDevice];  
      
}  

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