transitionViewForCurrentTransition未设置，演示文稿控制器在演示期间被解雇

TransitionViewForCurrentTransition未设置，演示文稿控制器在演示过程中被解散？（< _UIFullscreenPresentationController： 如何解决它，没有例外的是打印，但上述错误显示的主叫transitionViewForCurrentTransition未设置，演示文稿控制器在演示期间被解雇

-(IBAction)presume:(id)sender 
{ 
     [self returnToRootViewController]; 

} 



- (UIViewController*)topmostViewController 
    { 
     UIViewController* vc = [[[UIApplication sharedApplication] keyWindow] rootViewController]; 
     while(vc.presentedViewController) { 
      vc = vc.presentedViewController; 
     } 
     return vc; 
    } 

    - (void)returnToRootViewController 
    { 
     UIViewController* vc = [self topmostViewController]; 
     while (vc) { 
      if(vc.presentingViewController) { 
       if ([vc isKindOfClass:[CarDetailVC class]]) 
       { 

        @try { 



         [vc dismissViewControllerAnimated:NO completion:^{}]; 

        } @catch (NSException *exception) { 

         NSLog(@"exception=%@",exception); 
        } @finally { 

        } 


       } 

      } 
      vc = vc.presentingViewController; 
     } 



    }

来源

2017-04-01 iphonemaclover

我看到这里的关系，你刚才的问题1上。你只是想解雇，直到CarDetailVC最高？ – danh

是的，我尝试了以上的解决方案，并坚持它 – iphonemaclover

让我们先从一个更直接的路径与目标VC（CarDetailVC的实例）

- (UIViewController*)vcWithClass:(Class)klass { 
    UIViewController* vc = [[[UIApplication sharedApplication] keyWindow] rootViewController]; 
    while(![vc.presentedViewController isKindOfClass:klass]) { 
     vc = vc.presentedViewController; 
    } 
    return vc; 
}

现在，得到它，消除它提出的VC。

- (void)returnToCarVC { 
    CarDetailVC *carVC =(CarDetailVC*) [self vcWithClass:[CarDetailVC self]]; 
    UIViewController *presented = carVC.presentedViewController; 
    [presented dismissViewControllerAnimated:NO completion:^{}]; 
}

来源

2017-04-01 14:46:09 danh

警告在不兼容的指针类型初始化CarDetailVC *与UIViewcontroller类型的表达式 CarDetailVC * carVC = [self vcWithClass：[CarDetailVC self]]; – iphonemaclover

不再靠近开发机器，但那是微不足道的：只是施放结果* carVC =（CarDetailVC）... – danh

感谢丹你不仅仅保存我的一天，而是整个周末。 – iphonemaclover

transitionViewForCurrentTransition未设置，演示文稿控制器在演示期间被解雇

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