我怎樣才能得到應用程序將終止我的視圖控制器中的委託？

Question

我想在應用程序終止時調用方法。我不想在應用程序委託中執行此操作，我想在視圖控制器中調用該方法。 請幫我。

Answer 1

試試這個

[[NSNotificationCenter defaultCenter] 
         addObserver:self 
          selector:@selector(applicationWillTerminate:) 
           name:UIApplicationWillTerminateNotification 
           object:[UIApplication sharedApplication]]; 

-(void)applicationWillTerminate:(NSNotification *)notify{ 
    //do your task 
} 

或者

[[NSNotificationCenter defaultCenter]addObserverForName:UIApplicationWillTerminateNotification object:[UIApplication sharedApplication] queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification * _Nonnull note) { 
     //do your task 
    }]; 

Answer 2

嘗試通知方法

[[NSNotificationCenter defaultCenter] 
        addObserver:self 
         selector:@selector(callOnApplicationTerminated:) 
          name:UIApplicationWillTerminateNotification 
          object:[UIApplication sharedApplication]];