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  • UIcollectionView详解自定义间距列距



    -(void)initBaseDatas{
        self.view.backgroundColor=[UIColor whiteColor];
        CGRect rect=CGRectMake(0, 72, self.view.frame.size.width, self.view.frame.size.height-80);
        self.colleView=[[UICollectionView alloc]initWithFrame:rect collectionViewLayout:[[UICollectionViewFlowLayout alloc]init]];
        self.colleView.dataSource=self;
        self.colleView.delegate=self;
        self.colleView.backgroundColor=[UIColor whiteColor];
        [self.colleView registerNib:[UINib nibWithNibName:@"PictureMessageCell" bundle:nil] forCellWithReuseIdentifier:ID];
        [self.view addSubview:self.colleView];
    }
    #pragma mark ---de

    -(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
        return 10;
    }
    -(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
        
        PictureMessageCell *cell=(PictureMessageCell *)[self.colleView dequeueReusableCellWithReuseIdentifier:ID forIndexPath:indexPath];
        cell.iconImg.image=[UIImage imageNamed:@"messligh"];
        return cell;
    }
    -(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
    {
        PictureMessageCell * cell = (PictureMessageCell *)[collectionView cellForItemAtIndexPath:indexPath];
    //    cell.backgroundColor = [UIColor whiteColor];
    }
    - (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
    {
        return CGSizeMake(self.view.frame.size.width/3.0-15, self.view.frame.size.width/3.0-15);
        
    }
    - (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section
    {
        return 10.0;
    }
    -(UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section
    {
        return UIEdgeInsetsMake(8, 10, 8, 10);
    }

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  • 原文地址:https://www.cnblogs.com/transcendent/p/4810776.html
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