StackOverflow2013

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plurals

PO
primarykey
Id
18955791
data
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0
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2013-09-23T09:25:09.120
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2013-09-23T09:25:09.120
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888545
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Score
13
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LastEditorDisplayName
text
Body
The best solution was proposed by Zsolt in the comments: <blockquote> <a href="http://github.com/evgenyneu/ios-imagescroll" rel="noreferrer">http://github.com/evgenyneu/ios-imagescroll</a> check this out. Works perfectly for me. </blockquote> The solution proposed in this repository is to adjust the minimum and current zoom level before displaying the image: <pre><code>@interface MyViewController () <UIScrollViewDelegate> @property (weak, nonatomic) IBOutlet UIScrollView *scrollView; @property (weak, nonatomic) IBOutlet UIImageView *imageView; @end @implementation MyViewController - (void)viewDidLoad { [super viewDidLoad]; self.scrollView.delegate = self; [self initZoom]; } - (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation { [self initZoom]; } // Zoom to show as much image as possible - (void) initZoom { float minZoom = MIN(self.view.bounds.size.width / self.imageView.image.size.width, self.view.bounds.size.height / self.imageView.image.size.height); if (minZoom > 1) return; self.scrollView.minimumZoomScale = minZoom; self.scrollView.zoomScale = minZoom; } - (UIView*)viewForZoomingInScrollView:(UIScrollView *)scrollView { return self.imageView; } </code></pre> However sample conatins issue with zooming out. Image is not getting centered. This can be easily fixed by using the custom scroll view class with the following code in it: <pre><code>@interface MyScrollView : UIScrollView @end @implementation MyScrollView -(void)layoutSubviews { [super layoutSubviews]; UIView* v = [self.delegate viewForZoomingInScrollView:self]; CGFloat svw = self.bounds.size.width; CGFloat svh = self.bounds.size.height; CGFloat vw = v.frame.size.width; CGFloat vh = v.frame.size.height; CGRect f = v.frame; if (vw < svw) f.origin.x = (svw - vw) / 2.0; else f.origin.x = 0; if (vh < svh) f.origin.y = (svh - vh) / 2.0; else f.origin.y = 0; v.frame = f; } @end </code></pre>
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Title
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PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POZooming UIImageView inside UIScrollView with autolayout
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 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USAnton Matosov
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1. VO
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2. VO
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1. This table or related slice is empty.

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