JSON值是相同的，那么為什么在Swift中計算tableview的分頁變化-有解無憂

我需要每 5 場比賽增加計數

如果 total_count 為0,1,2,3,4,5pageNum = 1
如果 total_count 為5,6,7,8,9,10pageNum = 2...

例如。如果 total_count 為 50，則 pageNum = 50/5 = 10

here total_count= 3 但是當我每次重繪時currentPageNumberVM都在增加，但是為什么呢？

代碼：對于上述邏輯，我撰寫了這樣的代碼currentPageNumberVM = 1 Int((self.paginationData?.result?.total_count ?? 0 - 1) / 5)。但這里total_count保持不變。但是當我重繪時一直currentPageNumberVM在增加。如何解決這個問題？

var currentPageNumberVM: Int = 1
var isLoadingList: Bool = false

override func viewDidLoad() {
    super.viewDidLoad()
    self.currentPageNumberVM = 1
    self.PagenationMachesService(currentPageNumberVM)
}

private var paginationData = PaginationMaches(dictionary: NSDictionary())

func PagenationMachesService(_ pageNumber: Int) {

    let param = ["slug": slugVal ?? "", "page_no": currentPageNumberVM] as [String: Any]

    APIReqeustManager.sharedInstance.serviceCall(
        param: param as [String: Any], method: .post, url: CommonUrl.get_matches
    ) { [weak self] (resp) in

        if (self?.currentPageNumberVM)! > 1 {
            if (PaginationMaches(dictionary: resp.dict as NSDictionary? ?? NSDictionary())?.result?
                .matches ?? [Matches]()).count != 0
            {
                self?.paginationData?.result?.matches!  =
                    PaginationMaches(dictionary: resp.dict as NSDictionary? ?? NSDictionary())?
                    .result?.matches ?? [Matches]()
            } else {
                self?.showSingleButtonAlertWithoutAction(title: "NO more data to show")
            }
        } else {
            self?.paginationData = PaginationMaches(
                dictionary: resp.dict as NSDictionary? ?? NSDictionary())
        }

        self?.isLoadingList = false
        self?.machesTable.reloadData()
    }
}

@objc func refresh() {
    self.currentPageNumberVM  = 1   Int((self.paginationData?.result?.total_count ?? 0 - 1) / 5)
    self.PagenationMachesService(currentPageNumberVM)
}

extension MatchesVC {
    func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool) {

        if (scrollView.contentOffset.y   scrollView.frame.size.height)
            >= scrollView.contentSize.height
        {
            self.isLoadingList = true
            self.refresh()
        }
    }
}

uj5u.com熱心網友回復：

您正在增加的值，currentPageNumberVM因為您使用的是“加法賦值運算子” =。

將其更改為“賦值”運算子=，它應該可以正常作業。

self.currentPageNumberVM = 1   Int((self.paginationData?.result?.total_count ?? 0 - 1) / 5)

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標籤：json 迅速合适的视图数数分页

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