UIView에서 하나의 요소 만 회전하는 방법

Question

UIScrollView와 같은 많은 항목이 포함 된 UIView가 있습니다.

내 장치 (또는 iPhone 시뮬레이터)의 위치를 ​​변경할 때 UIScrollView를 에만 회전하도록 지정할 수 있습니까?

감사합니다.

Answer 1

• 반환 :

[[NSNotificationCenter defaultCenter] addObserver:self 
              selector:@selector(didRotate:) 
               name:UIDeviceOrientationDidChangeNotification 
               object:nil]; 

• 와 당신이 원하는 바로보기 회전 : 나는 CGAffineTransformMakeRotation()를 사용하려고

self.theView.transform = CGAffineTransformIdentity; 
self.theView.transform = CGAffineTransformMakeRotation(degreesToRadians(-90)); 

Answer 2

UIView *localView = [mainView viewWithTag:tagOfScrollViewToRotate]; 
UIInterfaceOrientation deviceOrientation = [UIApplicationsharedApplication].statusBarOrientation; 

      float angle; 
      switch (deviceOrientation) { 
       case UIInterfaceOrientationPortraitUpsideDown: 
       { 
        angle = M_PI; 
        CGAffineTransform transform = CGAffineTransformMakeRotation(angle); 
        [localView setTransform:transform]; 

        break; 
       } 
       case UIInterfaceOrientationLandscapeLeft: 
       { 
        angle = -M_PI/2; 
        CGAffineTransform transform = CGAffineTransformMakeRotation(angle); 
        [localView setTransform:transform]; 
        localView.frame = CGRectMake(0, 0, 768, 1024); 

        break; 
       } 
       case UIInterfaceOrientationLandscapeRight: 
       { 
        angle = M_PI/2; 
        CGAffineTransform transform = CGAffineTransformMakeRotation(angle); 
        [localView setTransform:transform]; 
        localView.frame = CGRectMake(0, 0, 768, 1024); 
        break; 
       } 

       default: 
       { 
        angle = 0; 
        break; 
       } 
      } 

행운을 빌어 요, : D NO에서

- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration 

• 장치 회전 통지를 직접 처리