UICollectionViewCell重用叠加出问题的解决

http://blog.csdn.net/sadsadaadsd/article/details/51956671

UICollectionViewCell重用叠加出问题的解决 

首先创建一个可变数组，用来存放Cell的唯一标示符

// 用来存放Cell的唯一标示符

@property (nonatomic, strong) NSMutableDictionary *cellDic;

#warning 别忘了初始化哟

self.cellDic = [[NSMutableDictionary alloc] init];

在cellForItemAtIndexPath:这个方法中作相应的一些处理即可，代码如下

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath

{

// 每次先从字典中根据IndexPath取出唯一标识符

NSString *identifier = [_cellDic objectForKey:[NSString stringWithFormat:@"%@", indexPath]];

// 如果取出的唯一标示符不存在，则初始化唯一标示符，并将其存入字典中，对应唯一标示符注册Cell

if (identifier == nil) {

identifier = [NSString stringWithFormat:@"%@%@", DayCell, [NSString stringWithFormat:@"%@", indexPath]];

[_cellDic setValue:identifier forKey:[NSString stringWithFormat:@"%@", indexPath]];

// 注册Cell

[self.collectionView registerClass:[CalendarCollectionViewCell class]  forCellWithReuseIdentifier:identifier];

}

CalendarCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:identifier forIndexPath:indexPath];

// 此处可以对Cell做你想做的操作了...

return cell;

}