![]() ![]() When a scrolling event was started, the UIButton event wasnt fired off, I think. If I recall correctly, this was never the case pre-iOS7. ![]() If I happen to touch a button as I start my scroll, the Touch Down event is triggered as well as the scrolling event of the UICollectionView. When we adjust the bounds, we make sure to only allow valid values. The UICollectionView these cells are apart of is a scrolling one. CustomScrollView.h UIKit CustomScrollView : UIView ( nonatomic ) CGSize contentSize // CustomScrollView.m #import CustomScrollView - ( id ) initWithFrame :( CGRect ) frame like the real UIScrollView, our class has a contentSize property that must be set from the outside to define the extent of the scrollable area. Everything outside the bounds is still there, only hidden: 2 The view becomes a viewport into the coordinate system plane, displaying a small part of the entire plane. Say our view’s bounds rectangle has a width and height of 320 by 480 points and its origin is the default (0, 0). And the view’s bounds express the location and size of this rectangle. The bounds rectangle … describes the view’s location and size in its own coordinate system.Ī view can be considered a window or viewport into a rectangular area of the plane defined by its coordinate system. The UIView documentation says this about the bounds property: backgroundColor = UIView * yellowView = initWithFrame : CGRectMake ( 100, 600, 180, 150 )] yellowView. backgroundColor = UIView * blueView = initWithFrame : CGRectMake ( 40, 400, 200, 150 )] blueView. backgroundColor = UIView * greenView = initWithFrame : CGRectMake ( 150, 160, 150, 200 )] greenView. If you Command-click on the UIScrolLViewDelegate, it will pull up the list of events for the UIScrollView. UIView * redView = initWithFrame : CGRectMake ( 20, 20, 100, 100 )] redView. ![]()
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