UICollectionView

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    

    CGFloat itemWidth = (self.view.bounds.size.width - margin*3) / 2;

    CGFloat itemHeight = itemWidth * 0.85 + 100;

    

    UICollectionViewFlowLayout*layout = [[UICollectionViewFlowLayout alloc]init];

    layout.itemSize = CGSizeMake(itemWidth, itemHeight);

    layout.minimumInteritemSpacing = margin;

    layout.minimumLineSpacing = margin;

    layout.sectionInset = UIEdgeInsetsMake(margin, margin, margin, margin);

    

    self.collectionView = [[UICollectionView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height) collectionViewLayout:layout];

    [self.view addSubview:self.collectionView];

    self.collectionView.dataSource = self;

    self.collectionView.delegate = self;

    self.collectionView.backgroundColor = [UIColor whiteColor];

    [self.collectionView registerClass:[HomeCell class] forCellWithReuseIdentifier:HYSquareHotViewCellIdentifier];

 

}

 

#pragma mark Delegate & DataSource

- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView

{

    return 1;

}

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section

{

    return 10;

}

 

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

{

    HomeCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:HYSquareHotViewCellIdentifier forIndexPath:indexPath];

    cell.backgroundColor = [UIColor colorWithRed:((10 * indexPath.row) / 255.0) green:((20 * indexPath.row)/255.0) blue:((30 * indexPath.row)/255.0) alpha:1.0f];

 

    return cell;

}