iPhone iOS如何翻轉/反射任何UIView的地方？

Question

我知道如何通過在界限內重新繪製UIImage來翻轉/反射/旋轉UIImage。

- (IBAction)reflectImageView:(UIImageView)imageView { 

    UIGraphicsBeginImageContextWithOptions(imageView.bounds.size, NO, 0.0); 
    CGContextRef context = UIGraphicsGetCurrentContext(); 
    CGContextScaleCTM(context, 1.0, -1.0); 
    CGContextTranslateCTM(context, 0.0, -imageView.bounds.size.height); 


    [imageView.layer renderInContext:context]; 
    imageView.image = UIGraphicsGetImageFromCurrentImageContext(); 
    UIGraphicsEndImageContext(); 

} 

但是，如何爲任何UIView創建「翻轉/反射」效果，最好是保持它與以前相同的位置？

謝謝！

Answer 1

[UIView beginAnimations:nil context:nil]; 
    [UIView setAnimationDuration:0.75]; 
    [UIView setAnimationDelegate:self]; 
    [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.activeView cache:YES]; 
    //  [self.activeView removeFromSuperview]; 
    [UIView commitAnimations]; 

    NSNumber* isReflected = [self.activeView.attributedView.attributes valueForKey:kIsReflected]; 
    if(isReflected.boolValue) 
    { 
     self.activeView.transform = CGAffineTransformMakeScale(1,1); 
     [self.activeView.attributedView.attributes setValue: [NSNumber numberWithBool:NO] forKey:kIsReflected]; 
    }else { 
     //do reflection 
     self.activeView.transform = CGAffineTransformMakeScale(-1,1); 
     [self.activeView.attributedView.attributes setValue: [NSNumber numberWithBool:YES] forKey:kIsReflected]; 
    } 

上面的代碼用於UIView動畫。您將在哪裏獲得各種類型動畫的選項。

Answer 2

您可以通過

UIGraphicsBeginImageContext(self.view.frame.size); 
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()]; 
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext(); 
UIGraphicsEndImageContext(); 

做出任何的意見「截圖」，然後翻轉的UIImage，並添加一個UIImageView與視圖下產生的圖像。