與核心動畫

這裏怪異的觀點是代碼：與核心動畫

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];

不知道爲什麼，當動畫開始時，它被一些迄今數額距離的移動有點權。任何想法？這裏的video

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2012-01-13 xonegirlz

檢查您添加imgView到哪個視圖。我會說'imgFrame.origin.x = 110;'是導致這個問題，檢查與0.這就是我可以幫助這個數量的代碼 – 2012-01-13 08:48:40

嘗試setCenter前beginAnimations

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

您的代碼應該是這樣的：

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];

然後，如果你的目標是iOS 4.0或更高版本，它是更好地使用塊基於動畫的方法，像這裏寫的： http://developer.apple.com/library/ios/#documentation/uikit/reference/UIView_Class/UIView/UIView.html

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2012-01-13 08:58:26 Beppe

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