集合视图一次仅加载一个单元格

Question

已编辑

我正在使用自定义收集单元格加载到collectionview中。但是，当集合视图加载预期的行为时，cellforindex代表将调用3个indexpath，但在这种情况下，仅调用3个第0个indexpath。

    override func viewDidLoad()
    {
        super.viewDidLoad()
        let nib = UINib(nibName: "cellName", bundle: nil)
        self.collectionvView?.register(nib, forCellWithReuseIdentifier: "cellId")
    }

    func numberOfSections(in collectionView: UICollectionView) -> Int
    {
        return 1
    }

    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int
    {
       return 10
    }

    func collectionView(_ collectionView: UICollectionView,
              cellForItemAt indexPath: IndexPath) -> UICollectionViewCell
    {
        print("indexpath.row ----------------- ",indexPath.row)

        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cellId",for: indexPath) as! DetailCollectionViewCell
         return cell

    }

Answer 1

全部检查

1. self.arrIds.count = 3
2. numberOfSections = 1
3. numberOfItemsInSection
4. cellForItemAt