SDWebImage fade in effect

cell.m

[photoImgeView setImageWithURL:[NSURL URLWithString:photoPath] 
    completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType) {
        if (cacheType == SDImageCacheTypeNone) {
            photoImgeView.alpha = 0;
            [UIView animateWithDuration:0.3 animations:^{
                photoImgeView.alpha = 1;
            }];
        } else {
            photoImgeView.alpha = 1;
        }
    }];