The elegance of the Block

This show how to use an inline block to better organize your code. Isn’t this more elegant? You can clearly see all the instruction that lead to the UICollectionView initialization.

__weak typeof(self) weakSelf = self;

self.collectionView = (UICollectionView *)^{
    UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
    UICollectionView *collectionView       = [[UICollectionView alloc] initWithFrame:weakSelf.view.bounds
                                                                collectionViewLayout:flowLayout];
    collectionView.delegate   = weakSelf;
    collectionView.dataSource = weakSelf;

    return collectionView;
}();