內部編譯器錯誤：總線錯誤

Question

我有下面的代碼（見下文），如果我編譯它是因爲我得到「內部編譯器錯誤：總線錯誤」。如果我註釋掉最後一個ImageOne.transform，一切正常。如果文件以.m結尾，那麼它會編譯好，如果我將其更改爲.mm，那麼它有問題。有任何想法嗎？

[UIView animateWithDuration:duration1 delay:delay options:UIViewAnimationCurveEaseIn animations:^{ 
      ImageOne.transform = CGAffineTransformMakeScale(scale1, scale1); 
      ImageOne.alpha = 1.0f; 

     } 
         completion:^(BOOL finished){ 
          [UIView animateWithDuration:SecondDuration delay:SecondDelay options:UIViewAnimationCurveEaseOut animations:^{ 
           ImageOne.transform = CGAffineTransformMakeScale(scale2, scale2); 
          } 
               completion:^(BOOL finished){ 
                [UIView animateWithDuration:SecondDuration delay:SecondDelay options:UIViewAnimationCurveEaseOut animations:^{ 
                 ImageOne.transform = CGAffineTransformMakeScale(scale1, scale1); //results in bus error, i think its due to nesting 

                } 
                    completion:nil]; 
               }]; 
         }]; 
    } 

Answer 1

你爲什麼巢另一個塊，而不是僅僅增加

ImageOne.transform = CGAffineTransformMakeScale(scale1, scale1);

進入第一塊，像這樣

completion:^(BOOL finished) 
{ 
    [UIView animateWithDuration:SecondDuration delay:SecondDelay options:UIViewAnimationCurveEaseOut animations:^{ 
       ImageOne.transform = CGAffineTransformMakeScale(scale1, scale1); 
       ImageOne.transform = CGAffineTransformMakeScale(scale2, scale2); 

希望這有助於。 :)