//确定section的个数
-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
return 1;
}
//确定每个section对应的item的个数
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return self.imageArray.count;
}
//创建cell
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
MusicCollectionViewCell * cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"cell" forIndexPath:indexPath];
//赋值
[cell.imageView setImage:[UIImage imageNamed:self.imageArray[indexPath.item]]];
cell.titleLabel.text = self.nameArray[indexPath.item];
return cell;
}
//设置item的大小
-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
return CGSizeMake((SCREEN_W - 20) / 2, 150);
}
//设置垂直间距,默认的垂直和水平间距都是10
-(CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section
{
return 5;
}
//设置水平间距
-(CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section
{
return 5;
}
//四周的边距
-(UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section
{
return UIEdgeInsetsMake(5, 5, 5, 5);
}
//设置header的大小
-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section
{
return CGSizeMake(60, 30);
}
//设置footer的大小
-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout referenceSizeForFooterInSection:(NSInteger)section
{
return CGSizeMake(60, 30);
}
//设置header和footer的view
-(UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{
MusicCollectionReusableView * view = [collectionView dequeueReusableSupplementaryViewOfKind:kind withReuseIdentifier:@"view" forIndexPath:indexPath];
//分别给header和footer赋值
if (kind == UICollectionElementKindSectionHeader) {
view.titleLabel.text = @"段头";
}
else
{
view.titleLabel.text = @"段尾";
}
return view;
}
//设置选中
-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
MusicDetailViewController * vc = [[MusicDetailViewController alloc]init];
//传值
vc.typeString = self.nameArray[indexPath.item];
vc.urlString = self.urlArray[indexPath.item];
vc.hidesBottomBarWhenPushed = YES;
[self.navigationController pushViewController:vc animated:YES];
}
