ios - UICollectionView，导航栏覆盖了单元格

Question

要删除collectionView单元格下面的空间:

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中添加它:

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