UICollectionView在xcode16编译闪退问题

使用xcode15运行工程,控制台会出现如下提示:

Expected dequeued view to be returned to the collection view in preparation for display. When the collection view's data source is asked to provide a view for a given index path, ensure that a single view is dequeued and returned to the collection view. Avoid dequeuing views without a request from the collection view. For retrieving an existing view in the collection view, use -[UICollectionView cellForItemAtIndexPath:] or -[UICollectionView supplementaryViewForElementKind:atIndexPath:]. Dequeued view: <IQEngUICollectionViewCell: 0x130215e00; baseClass = UICollectionViewCell; frame = (396 0; 396 98.1547); clipsToBounds = YES; backgroundColor = UIExtendedGrayColorSpace 0 0; layer = <CALayer: 0x301e371a0>>; Collection view: <UICollectionView: 0x1300caa00; frame = (0 0; 396 98.1547); clipsToBounds = YES; gestureRecognizers = <NSArray: 0x300b706f0>; backgroundColor = <UIDynamicSystemColor: 0x3002a3380; name = systemBackgroundColor>; layer = <CALayer: 0x301d5a080>; contentOffset: {0, 0}; contentSize: {3168, 98.154666666666671}; adjustedContentInset: {0, 0, 0, 0}; layout: <IQEngCollectionViewFlowLayout: 0x1237e7480>; dataSource: IQEngCarouselView:<IQEngCarouselView: 0x130117e00; frame = (16 11.4133; 396 98.1547); clipsToBounds = YES; layer = <CALayer: 0x301d59f20>>> This will become an assert in a future version.

然后在xcode16运行是会直接闪退的,控制台会显示

*** Assertion failure in -[UICollectionView _updateVisibleCellsNow:], UICollectionView.m:5673

*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Expected dequeued view to be returned to the collection view in preparation for display. When the collection view's data source is asked to provide a view for a given index path, ensure that a single view is dequeued and returned to the collection view. Avoid dequeuing views without a request from the collection view. For retrieving an existing view in the collection view, use -[UICollectionView cellForItemAtIndexPath:] or -[UICollectionView supplementaryViewForElementKind:atIndexPath:]. Dequeued view: <IQEngUICollectionViewCell: 0x1627b4780; baseClass = UICollectionViewCell; frame = (396 0; 396 98.1547); clipsToBounds = YES; backgroundColor = UIExtendedGrayColorSpace 0 0; layer = <CALayer: 0x302bc77a0>>; Collection view: <UICollectionView: 0x15fd0c000; frame = (0 0; 396 98.1547); clipsToBounds = YES; gestureRecognizers = <NSArray: 0x3030c4570>; backgroundColor = <UIDynamicSystemColor: 0x303a1f880; name = systemBackgroundColor>; layer = <CALayer: 0x302663260>; contentOffset: {0.33333333333333331, 0}; contentSize: {3168, 98.154666666666671}; adjustedContentInset: {0, 0, 0, 0}; layout: <IQEngCollectionViewFlowLayout: 0x15fb53480>; dataSource: IQEngCarouselView:<IQEngCarouselView: 0x15fcab800; frame = (16 11.4133; 396 98.1547); clipsToBounds = YES; layer = <CALayer: 0x3026630a0>>>'

问题原因在于,轮播图在自动轮播的时候调用的方法有问题

objectivec 复制代码
这个代码是有问题的    
UICollectionViewCell *cell = [self collectionView:self.collectionView cellForItemAtIndexPath:indexPath];
    CGFloat f1_minX = cell.frame.origin.x;
    CGPoint point = CGPointZero;
    point.x = f1_minX;
    CGPoint nextPoint = [self.collectionViewLayout targetContentOffsetForProposedContentOffset:point withScrollingVelocity:CGPointZero];
    [self.collectionView setContentOffset:nextPoint animated:animated];

将上面代码换成

objectivec 复制代码
    [self.collectionView scrollToItemAtIndexPath:indexPath
                                atScrollPosition:UICollectionViewScrollPositionLeft
                                        animated:animated];

可以解决问题

相关推荐
用户870568130453 小时前
iOS 异步渲染:从 CALayer 切入的实现与优化
ios
敲代码的鱼哇1 天前
跳转原生系统设置插件 支持安卓/iOS/鸿蒙UTS组件
android·ios·harmonyos
在下历飞雨1 天前
Kuikly基础之状态管理与数据绑定:让“孤寡”计数器动起来
ios·harmonyos
在下历飞雨1 天前
Kuikly基础之Kuikly DSL基础组件实战:构建青蛙主界面
ios·harmonyos
鹏多多.1 天前
flutter-使用fluttertoast制作丰富的高颜值toast
android·前端·flutter·ios
他们都不看好你,偏偏你最不争气1 天前
【iOS】多界面传值
ios
MaoJiu2 天前
Flutter混合开发:在iOS工程中嵌入Flutter Module
flutter·ios
2501_915921432 天前
小团队如何高效完成 uni-app iOS 上架,从分工到工具组合的实战经验
android·ios·小程序·uni-app·cocoa·iphone·webview
2501_916008892 天前
uni-app iOS 文件管理与 itools 配合实战,多工具协作的完整流程
android·ios·小程序·https·uni-app·iphone·webview
Digitally2 天前
如何将视频从 iPhone 转移到 Mac
macos·ios·iphone