与核心动画

这里怪异的观点是代码：与核心动画

UIImageView * imgView = [[UIImageView alloc] initWithImage:image]; 



       CGRect imgFrame = imgView.frame; 
       imgFrame.size.width = originalImageSize.width; 
       imgFrame.size.height = originalImageSize.height; 
       imgFrame.origin.x = 110; 
       imgFrame.origin.y = 215; 
       imgView.frame = imgFrame; 

[UIView beginAnimations:nil context:NULL]; 
       [UIView setAnimationDuration:10]; 

       CGRect frame = imgView.frame; 
       frame.size.width = SCREEN_WIDTH_PORTRAIT; 
       [imgView setFrame:frame]; 
       [imgView setCenter:CGPointMake(SCREEN_WIDTH_PORTRAIT/2, (SCREEN_HEIGHT_PORTRAIT)/2)]; 

[fullSizeImageView setBackgroundColor:[UIColor blackColor]]; 
       [UIView commitAnimations];

不知道为什么，当动画开始时，它被一些迄今数额距离的移动有点权。任何想法？这里的video

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2012-01-13 xonegirlz

检查您添加imgView到哪个视图。我会说'imgFrame.origin.x = 110;'是导致这个问题，检查与0.这就是我可以帮助这个数量的代码 – 2012-01-13 08:48:40

尝试setCenter前beginAnimations

imgView.center = CGPointMake(SCREEN_WIDTH_PORTRAIT/2, yYouLike);

您的代码应该是这样的：

UIImageView * imgView = [[UIImageView alloc] initWithImage:image]; 

       CGRect imgFrame = imgView.frame; 
       imgFrame.size.width = originalImageSize.width; 
       imgFrame.size.height = originalImageSize.height; 
       imgFrame.origin.x = 110; 
       imgFrame.origin.y = 215; 
       imgView.frame = imgFrame; 

imgView.center = CGPointMake(SCREEN_WIDTH_PORTRAIT/2, yYouLike); 

[UIView beginAnimations:nil context:NULL]; 
       [UIView setAnimationDuration:10]; 

       CGRect frame = imgView.frame; 
       frame.size.width = SCREEN_WIDTH_PORTRAIT; 
       [imgView setFrame:frame]; 
       [imgView setCenter:CGPointMake(SCREEN_WIDTH_PORTRAIT/2, (SCREEN_HEIGHT_PORTRAIT)/2)]; 

[fullSizeImageView setBackgroundColor:[UIColor blackColor]]; 
       [UIView commitAnimations];

然后，如果你的目标是iOS 4.0或更高版本，它是更好地使用块基于动画的方法，像这里写的： http://developer.apple.com/library/ios/#documentation/uikit/reference/UIView_Class/UIView/UIView.html

来源

2012-01-13 08:58:26 Beppe

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