Question

我正在iOS中构建一个应用程序，我希望我的CollectionView中的单元格在触摸时突出显示，非常像普通按钮。如何在 didSelectItemAtIndexPath：（NSIndexPath *）indexPath 方法中实现此目的？

Answer 1

尝试这样的事情：

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
    .....
    if (cell.selected) {
        cell.backgroundColor = [UIColor colorWithRed:255/255.0 green:255/255.0 blue:153/255.0 alpha:1]; // highlight selection
    }
    else
    {
        cell.backgroundColor = [UIColor clearColor]; // Default color
    }
    return cell;
}

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{
    UICollectionViewCell* cell = [collectionView  cellForItemAtIndexPath:indexPath];
    cell.backgroundColor = [UIColor colorWithRed:255/255.0 green:255/255.0 blue:153/255.0 alpha:1]; //     //cell.lblImgTitle.text = @"xxx";
}

- (void)collectionView:(UICollectionView *)collectionView didDeselectItemAtIndexPath:(NSIndexPath *)indexPath{
    UICollectionViewCell* cell = [collectionView  cellForItemAtIndexPath:indexPath];
    cell.backgroundColor = [UIColor clearColor];
}

Answer 2

如果您将单元格类子类化，请将其放在.m文件中

- (void)setSelected:(BOOL)selected
{
    if(selected)
    {
        self.backgroundColor = [UIColor colorWithWhite:0.1 alpha:0.5];
    }
    else
    {
        self.backgroundColor = [UIColor whiteColor];
    }
}

Answer 3

试试这个

cell.selectedBackgroundView.backgroundColor = [UIColor greenColor];

Answer 4

为什么不能通过可可豆荚改变背景颜色？我新增了一个用户定义的collectionView单元类`

   - (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{
        CHSMenuControlCell *cell = (CHSMenuControlCell*)[collectionView  cellForItemAtIndexPath:indexPath];
        cell.backgroundColor = [UIColor colorWithRed:255/255.0 green:255/255.0 blue:153/255.0 alpha:1]; //     //cell.lblImgTitle.text = @"xxx";
    }

    - (void)collectionView:(UICollectionView *)collectionView didDeselectItemAtIndexPath:(NSIndexPath *)indexPath{
    CHSMenuControlCell *cell = (CHSMenuControlCell *)[collectionView  cellForItemAtIndexPath:indexPath];
    cell.backgroundColor = [UIColor clearColor];
}

在CollectionView中突出显示单元格

4 个答案: