Question

我需要在UICollectionView的单元格中显示相同的图像，但具有以下逻辑：

我有14个不同的背景图片
我需要为每个14的倍数的单元格重复相同的图像。

例如：

indexPath.row == 1 ,   
indexPath.row == 14,   
indexPath.row == 28

等等，放一张图片

indexPath.row == 2 ,   
indexPath.row == 15,   
indexPath.row == 29

设置另一张图片，依此类推。

如何修复此请求？

我已经尝试过这段代码，但似乎没有成功:(

- (void)setImageForCell:(UICollectionViewCell *)curCell forIndexPath:(NSIndexPath *)indexPath
{
//=>    Get service image
UIImageView *imgService = (UIImageView *)[curCell viewWithTag:101];

for (NSUInteger i = 0; i < 14; i++)
{
    if (i == indexPath.row && indexPath.row % 13 == 0)
    {
        imgService.image        = [UIImage imageNamed:[NSString stringWithFormat:@"service_%d" , i]];
    }
}
}

由于

Answer 1

试试这个：

if(indexPath.row < 14)
{
    imgService.image = [UIImage imageNamed:[NSString stringWithFormat:@"service_%d" , indexPath.row]];
}
else
{
     if (indexPath.row % 14 == 0)
     {
         for (NSUInteger i = 0; i < 14; i++)
         {
            imgService.image = [UIImage imageNamed:[NSString stringWithFormat:@"service_%d" , i]];
         }
     }
}

或

imgService.image = [UIImage imageNamed:[NSString stringWithFormat:@"service_%d" , indexPath.row % 14]];

Answer 2

试试这个：

- (void)setImageForCell:(UICollectionViewCell *)curCell forIndexPath:(NSIndexPath *)indexPath
{
    // I would prefer to subclass the cell instead of using tag
    UIImageView *imgService = (UIImageView *)[curCell viewWithTag:101];
    imgService.image = [UIImage imageNamed:[NSString stringWithFormat:@"service_%d.png", indexPath.row % 14]];
}

（注意：我在Xcode之外键入了这个，我假设你的图像以service_0.png开头。如果不是，请相应调整。）

顺便说一下，

indexPath.row == 0,  <-- should start with 0 instead of 1   
indexPath.row == 14,   
indexPath.row == 28 
...
indexPath.row == 1,   <-- should be 1
indexPath.row == 15,   
indexPath.row == 29

在UICollectionView的单元格中显示相同的图像

2 个答案: