UICollectionViewFlowLayout 设置九宫格的大小间距

//设置九宫格的大小间距
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout
alloc] init];
layout.itemSize =
CGSizeMake(80,110);
layout.sectionInset =
UIEdgeInsetsMake(5,
10, 5,
10);
layout.minimumLineSpacing =
5;

[self.collectionView
setCollectionViewLayout:layout];