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2014/10/15 ¤U¤È 10:13:40
iphone Programming Glossary: scrollviewdidendzoomingNested UISCrollViews - Preventing Parent Scrollview from scrolling when zoomed on child http://stackoverflow.com/questions/1010489/nested-uiscrollviews-preventing-parent-scrollview-from-scrolling-when-zoomed-o UIScrollView scrollView1 return innerScrollViews objectAtIndex self indexOfComicViewWithOffset currentOffset void scrollViewDidEndZooming UIScrollView scrollView1 withView UIView view atScale float scale if scale 1 zooming NO outerScrollView setScrollEnabled..
Center content of UIScrollView when smaller http://stackoverflow.com/questions/1316451/center-content-of-uiscrollview-when-smaller known bug in zoomToRect animated In the next release after 3.0 this workaround will no longer be necessary void scrollViewDidEndZooming UIScrollView scrollView withView UIView view atScale float scale scrollView setZoomScale scale 0.01 animated NO scrollView..
Zoom UILabel & Re-render font at correct size http://stackoverflow.com/questions/1990458/zoom-uilabel-re-render-font-at-correct-size works well however my UILabel 's font looks rather gross at any zoom level other than 1. I can handle this method void scrollViewDidEndZooming UIScrollView scrollView withView UIView view atScale float scale in order to re size the font of my UILabel to something.. of the process in this answer . You'll need to keep track of the scale factor of the content view manually then in the scrollViewDidEndZooming withView atScale delegate method you'll apply that scale. For your UILabel that will mean changing the font size to reflect..
Handling touch events within a child UIScrollView http://stackoverflow.com/questions/241152/handling-touch-events-within-a-child-uiscrollview method to return the appropriate UIImageView when the user pinches in out. I have overriden the scrollViewDidEndZooming method to set the parent view's canCancelContentTouches property to NO if the zoom scale is greater than 1. So users are..
performSelector:withObject:afterDelay: not working from scrollViewDidZoom http://stackoverflow.com/questions/2865760/performselectorwithobjectafterdelay-not-working-from-scrollviewdidzoom performSelector @selector positionLock withObject nil afterDelay 0.4 void positionLock NSLog @ position locked void scrollViewDidEndZooming UIScrollView scrollView withView UIView view atScale float scale NSLog @ deleting timer NSObject cancelPreviousPerformRequestsWithTarget..
Redrawing UIScrollView contents after every zoom http://stackoverflow.com/questions/3313947/redrawing-uiscrollview-contents-after-every-zoom resize the content as appropriate. UIView viewForZoomingInScrollView UIScrollView aScrollView return contentView void scrollViewDidEndZooming UIScrollView aScrollView withView UIView view atScale float scale CGFloat oldZoomScale contentView.zoomScale CGSize size..
How do I reset after a UIScrollView zoom? http://stackoverflow.com/questions/448285/how-do-i-reset-after-a-uiscrollview-zoom that the next time the user zooms the transform starts from the current view. If I reset the transform to Identity in scrollViewDidEndZooming it works in the simulator but throws an EXC_BAD_ACCSES on the device. This doesn't even solve the issue entirely on the.. scaling of the view without having to redraw it each frame. At the end of the zoom operation your delegate method scrollViewDidEndZooming withView atScale will be called and give you a chance to do a more high quality rendering of your view at the new scale.. previousScale is a float instance variable of the view. I then implement the zooming delegate method as follows void scrollViewDidEndZooming UIScrollView scrollView withView UIView view atScale float scale contentView setTransformWithoutScaling CGAffineTransformIdentity..
Vector like drawing for zoomable UIScrollView http://stackoverflow.com/questions/5538394/vector-like-drawing-for-zoomable-uiscrollview contentsScale to get a higher quality render after zooming. Implement this UIScrollViewDelegate method void scrollViewDidEndZooming UIScrollView scrollView withView UIView view atScale float scale CATransaction begin CATransaction setValue NSNumber numberWithBool..
Unwanted scrolling when animating zoomScale in UIScrollView http://stackoverflow.com/questions/7301744/unwanted-scrolling-when-animating-zoomscale-in-uiscrollview viewDidLoad handleTapFrom recognizer and zoomOut to ZoomingPDFViewerViewController in PDFScrollview.m commented out scrollViewDidEndZooming withView atScale and scrollViewWillBeginZooming withView because they do stuff in the image background that distracts from..
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