UICollectionView，单元格与导航栏重叠

Question

想要删除collectionView单元格下方的空间：

UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
[flowLayout setItemSize:CGSizeMake(300, 435)];
[flowLayout setMinimumInteritemSpacing:0.0f];
[flowLayout setMinimumLineSpacing:20.0f];
[flowLayout setSectionInset:UIEdgeInsetsMake(0, 10, 0, 10)];

[flowLayout setScrollDirection:UICollectionViewScrollDirectionHorizontal];

[self.collectionView setCollectionViewLayout:flowLayout];

Answer 1

尝试在-viewDidLoad添加：

if ([self respondsToSelector:@selector(edgesForExtendedLayout)])
    self.edgesForExtendedLayout = UIRectEdgeNone;