如何在UICollectionViewCell中删除间距？

Question

我正在使用第三方UiCollection查看KRLCollectionViewGridLayout 在这里我在屏幕截图中附加了以下问题。

见上面的截图。 collectionview单元格中有一个额外的空间 我的问题是如何删除收集单元格中的这些额外空间，以及如何在两个单元格之间添加分隔符？

这是我的代码：

- (KRLCollectionViewGridLayout *)layout
{
    return (id)self.collectionView.collectionViewLayout;
}

- (IBAction)changeColumnsTapped:(id)sender {
    [[[UIActionSheet alloc] initWithTitle:@"Choose how many columns"
                                 delegate:self
                        cancelButtonTitle:nil
                   destructiveButtonTitle:nil
                        otherButtonTitles:@"1",@"2", nil]
     showInView:self.view];
}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    self.layout.numberOfItemsPerLine = [[actionSheet buttonTitleAtIndex:buttonIndex] integerValue];
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    UISearchBar *searchBar = [[UISearchBar alloc]initWithFrame:CGRectMake(0, -44, self.view.frame.size.width, 44.0)];
    [self.collectionView addSubview:searchBar];
    [self.collectionView setContentInset:UIEdgeInsetsMake(44, 0, 0, 0)];

    self.layout.numberOfItemsPerLine = 1;
    self.layout.aspectRatio = 1;
    self.layout.sectionInset = UIEdgeInsetsMake(10, 10, 10, 10);
    self.layout.interitemSpacing = 10;
    self.layout.lineSpacing = 10;

    // Uncomment the following line to preserve selection between presentations
    // self.clearsSelectionOnViewWillAppear = NO;

    // Register cell classes
    [self.collectionView registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:reuseIdentifier];

    //recipePhotos = [NSMutableArray arrayWithObjects:@"image1.png",@"image2.png",@"image3.png", nil];
     recipePhotos = [NSMutableArray arrayWithObjects:@"image1.png", nil];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
    return 1;
}

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
    return [recipePhotos count];
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"Cell1" forIndexPath:indexPath];

    //cell.contentView.backgroundColor = [UIColor blueColor];
    UIImageView *recipeImageView = (UIImageView *)[cell viewWithTag:100];
    recipeImageView.image = [UIImage imageNamed:[recipePhotos objectAtIndex:indexPath.row]];

    cell.layer.borderWidth = 0.5;

    return cell;
}

Answer 1

试试这个。查看此链接Cell spacing in UICollectionView

- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section {
   return 2.0;
}

- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section {
  return 2.0;
}

// Layout: Set Edges
- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
  // return UIEdgeInsetsMake(0,8,0,8);  // top, left, bottom, right
     return UIEdgeInsetsMake(0,0,0,0);  // top, left, bottom, right
}

Answer 2

在界面中添加 UICollectionViewDelegateFlowLayout 委托 和ipmplement

-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    return IPAD ? CGSizeMake(75, 75) : CGSizeMake(55, 55);
}

根据您的要求改变大小。