[求助]iOS调用reloadData()不刷新数据，不调用cellForRowAt方法

代码如下：主线程调用了tableView的reloadData()之后只调用了numberOfRowsInSection，没有调用cellForRowAt一直找不到解决的方法还有出错的原因，希望有大神知道原因的能指点一下，感激不尽

import UIKitprotocol SearchViewDelegate {    ///点击排序按钮调用    func searchView(clickSortBtn btn: UIButton)    ///选中商品调用    func searchView(clickShopCell indexPath: IndexPath)}class SearchView: UIView, UITableViewDataSource, UITableViewDelegate {    ///代理属性    var chDelegate: SearchViewDelegate?    var snapBtn = UIButton()    let btnTitles = ["相关", "销量", "价格", "新品"]    var bottomLine = UIView()    var shopTableV = UITableView()    ///模型数组    var models: [SearchShopResultModel] = []    override init(frame: CGRect) {        super.init(frame: frame)        self.backgroundColor = UIColor.chBackGroundColor        self.shopTableV.register(SearchViewShopCell.self, forCellReuseIdentifier: "searchShopCell")        shopTableV.dataSource = self        shopTableV.delegate = self    }    required init?(coder aDecoder: NSCoder) {        fatalError("init(coder:) has not been implemented")    }    ///布局子视图    override func layoutSubviews() {        ///1. 排序分类按钮        let btnBackV = UIView()        btnBackV.frame = CGRect(x: 0, y: 0, width: self.frame.width, height: 40)        btnBackV.backgroundColor = UIColor.white        self.addSubview(btnBackV)        for i in 0..<btnTitles.count {            let btn = UIButton.init(type: .custom)            btn.setTitle(btnTitles[i], for: .normal)            btn.setTitle(btnTitles[i], for: .highlighted)            btn.setTitleColor(UIColor.gray, for: .normal)            btn.setTitleColor(UIColor.red, for: .highlighted)            btn.titleLabel?.font = UIFont.systemFont(ofSize: 13)            btn.addTarget(self, action: #selector(typeBtnClick(btn:)), for: .touchUpInside)            ///frame            let btnW: CGFloat = self.frame.width / CGFloat(btnTitles.count)            let btnH: CGFloat = btnBackV.frame.height            let btnX: CGFloat = btnW * CGFloat(i)            let btnY: CGFloat = btnBackV.frame.minY            btn.frame = CGRect(x: btnX, y: btnY, width: btnW, height: btnH)            btnBackV.addSubview(btn)            if i == 0 {                ///添加下划线                let bottomLine = UIView()                bottomLine.backgroundColor = UIColor.red                let lineX: CGFloat = btn.frame.minX + 10                let lineY: CGFloat = btn.frame.maxY - 2                let lineW: CGFloat = btn.frame.width - 20                let lineH: CGFloat = 2                bottomLine.frame = CGRect(x: lineX, y: lineY, width: lineW, height: lineH)                btnBackV.addSubview(bottomLine)                self.bottomLine = bottomLine                ///发送点击事件                typeBtnClick(btn: btn)            }        }        ///2. 搜索结果列表        let tableY: CGFloat = btnBackV.frame.maxY + 10        let tableX: CGFloat = 0        let tableW: CGFloat = UIScreen.screenWidth        let tableH: CGFloat = UIScreen.screenHeight - tableY        self.shopTableV.frame = CGRect(x: tableX, y: tableY, width: tableW, height: tableH)        self.addSubview(shopTableV)    }    //MARK: - UITableViewDataSource    func numberOfSections(in tableView: UITableView) -> Int {        return 1    }    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {        return models.count    }    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {        let cell = SearchViewShopCell.cellWithTable(tableView: tableView)        let model = models[indexPath.row]        cell.detailText = model.goodsName        return cell    }    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {        return 100    }    //MARK: - UITableViewDelegate    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {        print("点击了\(indexPath.row)")    }    ///点击事件    func typeBtnClick(btn: UIButton) {        snapBtn.setTitleColor(UIColor.gray, for: .normal)        btn.setTitleColor(UIColor.red, for: .normal)        snapBtn = btn        ///添加下划线        bottomLine.backgroundColor = UIColor.red        let lineX: CGFloat = btn.frame.minX + 10        let lineY: CGFloat = btn.frame.maxY - 2        let lineW: CGFloat = btn.frame.width - 20        let lineH: CGFloat = 2        UIView.animate(withDuration: 0.2) {             self.bottomLine.frame = CGRect(x: lineX, y: lineY, width: lineW, height: lineH)        }    }    //MARK: - 外部方法    public func reloadView() {        DispatchQueue.main.async {            //刷新表格数据            self.shopTableV.reloadData()        }    }}