iOS - 设置为 0 时 UICollectionView 间距仍然存在 - 如何设置单元格之间没有间距 [英] iOS - UICollectionView spacing still there when set to 0 - How to set with no spacing between cells

问题描述

我有一个简单的 UICollectionView，我在 InterfaceBuilder 中设置了 0 间距，但是当我用单元格填充集合视图时，仍然有一些间距.为了实际看到一个间距为 0 的集合视图单元格，而不是将其设置为间距为 0，我需要做一些特别且不立即显而易见的事情吗?谢谢.

I have a simple UICollectionView which I have set with 0 spacing in InterfaceBuilder but when I populate the collection view with cells there is still some spacing. Is there something special and not immediately obvious that I need to do in order to actually see a collectionview cell with 0 spacing beyond setting it to have 0 spacing? Thanks.

编辑*一些代码:

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

    UICollectionViewCell *cell = [cv dequeueReusableCellWithReuseIdentifier:@"Cell" forIndexPath:indexPath];

    cell.backgroundColor = [UIColor clearColor];

    UILabel *lbl = [[UILabel alloc] initWithFrame:CGRectMake(2, 2, cell.frame.size.width -4, cell.frame.size.height -4)];
    lbl.backgroundColor = [UIColor clearColor];
    lbl.font = [UIFont boldSystemFontOfSize:20];
    lbl.text = [NSString stringWithFormat:@"$%0.0f", [[amountsArray objectAtIndex:indexPath.row] floatValue]];
    lbl.textAlignment = NSTextAlignmentCenter;
    lbl.layer.borderWidth = 1;

    [cell addSubview:lbl];
    [lbl release];

    return cell;
}

推荐答案

我解决了这个问题，得到了我想要的布局:

I solved this issue and got the layout I desired with the following:

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

UICollectionViewCell *cell = [cv dequeueReusableCellWithReuseIdentifier:@"Cell" forIndexPath:indexPath];



    cell.backgroundColor = [UIColor clearColor];

    //clear any contents on the cell
    for (UIView *subView in [cell subviews]) {
    [subView removeFromSuperview];
    }


    //Label to put on the cell
    UILabel *lbl = [[UILabel alloc] initWithFrame:CGRectMake(2, 2, cell.frame.size.width -4, cell.frame.size.height -4)];
    lbl.backgroundColor = [UIColor clearColor];
    lbl.textColor = [UIColor colorWithRed:[CPExtras RGBtoPercent:70] green:[CPExtras RGBtoPercent:92] blue:[CPExtras RGBtoPercent:105] alpha:1];
    lbl.font = [UIFont boldSystemFontOfSize:20];
    lbl.text = @"100";
    lbl.textAlignment = NSTextAlignmentCenter;

    //Give the cell a border
    cell.layer.borderColor = [[UIColor colorWithRed:[CPExtras RGBtoPercent:70] green:[CPExtras RGBtoPercent:92] blue:[CPExtras RGBtoPercent:105] alpha:0.5] CGColor];
    cell.layer.borderWidth = 0.5;


    [cell addSubview:lbl];

    [lbl release];





return cell;
}

在 IB 中，我为 collectionview 设置了以下测量设置:

In IB I had these measurement settings for the collectionview:

这篇关于iOS - 设置为 0 时 UICollectionView 间距仍然存在 - 如何设置单元格之间没有间距的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！