ios - UICollectionView 单元格未在 reloadData 上清除

Question

我有与这些类似的问题，但似乎无法解决我的问题..

1. > UICollectionView reload data Issue
2. > ios UICollectionView cells not refreshing after scroll
3. > UILabel overloading in UICollectionView

我在单元格中有一个带有自定义UIViews的CollectionView，在reloadData时重新添加自定义UIViews > 而不是删除已经显示的那些。这是我的 cellForItemAtIndexPath…

-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
UICollectionViewCell *collectionViewCell = [collectionView dequeueReusableCellWithReuseIdentifier:@"LiveTileCell" forIndexPath:indexPath];

NSDictionary *cellDataDictionary = [self.dataArray objectAtIndex:indexPath.row];
UIView *customView = [[UIView alloc] initWithFrame:collectionViewCell.contentView.frame];
customView.tag = 1002;


LiveTileView *liveTile = [[LiveTileView alloc] initWithFrame:CGRectMake(0, 0, collectionViewCell.frame.size.width, collectionViewCell.frame.size.height)];
liveTile.tag = 1001;

[liveTile initialize:[cellDataDictionary valueForKey:@"backgroundColor"] titleFont:[cellDataDictionary valueForKey:@"titleFont"] titleText:[cellDataDictionary valueForKey:@"titleText"] titleColor:[UIColor whiteColor] titleImage:[cellDataDictionary valueForKey:@"titleImage"] badge:[[cellDataDictionary valueForKey:@"badge"] intValue] detailViewImage:[cellDataDictionary valueForKey:@"detailViewImage"] compactView:nil isLiveTile:[[cellDataDictionary valueForKey:@"isLiveTile"] boolValue] animationTime:[[cellDataDictionary valueForKey:@"animationTime"] floatValue] elementIndex:indexPath.item];

[customView addSubview:liveTile];
[collectionViewCell addSubview:customView];

return collectionViewCell;
}

任何帮助都会很棒..提前致谢

Answer 1

试试这个

UICollectionViewCell *collectionViewCell = [collectionView dequeueReusableCellWithReuseIdentifier:@"LiveTileCell" forIndexPath:indexPath]; 


//    for(UIView *view in collectionViewCell.contentView.subviews)

 for(UIView *view in collectionViewCell.subviews)
 {
    for(UIView *subView in view.subviews)
    {

        [subView removeFromSuperview];
    }
    [view removeFromSuperview];
}
// write your code here