最新消息:20190717 VPS服务器:Vultr新加坡,WordPress主题:大前端D8,统一介绍入口:关于

【已解决】iOS11中UITableView显示不出来

iOS crifan 453浏览 0评论

代码中,对于UITableView,已经通过autolayout设置了frame的约束条件

也设置了datasource和viewdelegate的代理

class NewsDetailViewController: UIViewController, UITableViewDelegate,UITableViewDataSource {
    let attachFileListTableView:UITableView
    init(singleNews: SingleNews) {
        attachFileListTableView = UITableView()
        scrollView.addSubview(attachFileListTableView)
        constrain(self.dateNameLabel, self.attachFileListTableView) { (dateNameLabel, attachFileListTableView) in
            attachFileListTableView.top == dateNameLabel.bottom + 25
            attachFileListTableView.left == attachFileListTableView.superview!.left
            attachFileListTableView.right == attachFileListTableView.superview!.right
            //attachFileListTableView.bottom == attachFileListTableView.superview!.bottom
            attachFileListTableView.height == ScreenHeight – 10 – 20 – 13 – 25
        }
        scrollView.backgroundColor = UIColor.white//UIColor(hexString: “#E6E6E6”)
        //for debug
        self.scrollView.backgroundColor = UIColor.blue
        self.attachFileListTableView.backgroundColor = UIColor.yellow
        scrollView.isScrollEnabled = true
    }
    override func viewDidLoad() {
        self.attachFileListTableView.delegate = self
        self.attachFileListTableView.dataSource = self
        updateNewsInfo()
}
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        getDetailNewsInfo()
    }
    /***************************************************************************
     * UITableViewDataSource Functions
     ***************************************************************************/
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        let attachFileCount = self.singleNews.filesInfo.count
        return attachFileCount
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        var curFileItemCell = FileTableViewCell(reuseIdentifier: FileTableViewCellId)
        if(indexPath.row < self.singleNews.filesInfo.count) {
            let curFileItem = self.singleNews.filesInfo[indexPath.row]
            curFileItemCell = FileTableViewCell(
                reuseIdentifier: FileTableViewCellId,
                fileName: curFileItem.name,
                fileType: curFileItem.type
            )
        }
        return curFileItemCell
    }
    
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        let cellHeight:CGFloat = UITableViewAutomaticDimension
        return cellHeight
    }
    
    /***************************************************************************
     * UITableViewDelegate functions
     ***************************************************************************/
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        gLog.debug(“indexPath=\(indexPath)”)
        if(indexPath.row < self.singleNews.filesInfo.count) {
            let curFileItem = self.singleNews.filesInfo[indexPath.row]
            let fileId = curFileItem.id
            if let downloadFileUrl = NSURL(string: ServerApi.getDownloadFileUrl(id: fileId))  {
                UIApplication.shared.openURL(downloadFileUrl as URL)
            }
        }
    }
    
    //get detail news info, include attachment file list
    func getDetailNewsInfo(){
        self.pleaseWait()
        
        getUrlRespJson_async(
            httpMethod: .get,
            url:  ServerApi.getNoticeInfoUrl(noticeId: singleNews.id),
            parameters: nil,
            //respJsonHandle: { [weak self] (response) in
            respJsonHandle: { (response) in
                self.clearAllNotice()
                if response.isSuccess {
                    let singleNewsJson = response.successValue
                    gLog.debug(“singleNewsJson=\(singleNewsJson)”)
                    self.singleNews = SingleNews(fromJson: singleNewsJson)
                    self.updateNewsInfo()
                } else if response.isFailure {
                    self.noticeInfo(response.failedMessage)
                }
        })
    }
    
    func updateNewsInfo(){
        dispatchMain_async {
            self.titleLabel.text = self.singleNews.title
            self.subtitleLabel.text = self.singleNews.subtitle
            if let publishDate = self.singleNews.publishDate, let publisherName = self.singleNews.publisherName {
                self.dateNameLabel.text = “\(publishDate) 发布人:\(publisherName)”
            }
            self.attachFileListTableView.reloadData()
        }
    }

但是tableview显示不出来:

以为是没有给tableview设置高度,所以去改为:

            attachFileListTableView.height == ScreenHeight – 10 – 20 – 13 – 25

问题依旧。

关键是:

cellForRowAt

heightForRowAt

都没有执行到。

此处确保numberOfRowsInSection返回不是空,是6了。

ios 11 uitableview now show

ios 11 uitableview changes

ios 11 uitableview now display

Apple releases iOS 11 developer beta 9 and public beta 8 | 9to5Mac

swift – iOS 11 UITableView bug – Stack Overflow

去把相关的attachFileListTableView的代码,布局的代码等,

从init换到viewDidLoad

结果问题依旧。

改为:

//        attachFileListTableView = UITableView()

        attachFileListTableView = UITableView(frame: CGRect.zero)

结果:问题依旧。

加上frame的定义:

        attachFileListTableView.frame = CGRect(x: 0, y:90 , width: ScreenWidth, height: 44 * 6)

结果:问题依旧。

难道是:

scrollView中不能加入UITableView?

ios11 uitableview scrollview

ios11 uitableview UIscrollview

uitableview inside uiscrollview

iphone – How to use UITableView inside UIScrollView and receive a cell click? – Stack Overflow

就不应该把UITableView放到UIScrollView中

ios – I want a UITableView inside of a UIScrollView to extend to the bottom of the UIScrollView and not get cut off by initial screen – Stack Overflow

objective c – Scrolling a UITableView inside a UIScrollView – Stack Overflow

【总结】

所以此处之所以UITableView不显示,不是iOS11中有何变化,而是之前就知道的:

UITableVIew是继承自UIScrollView,所以官网不允许UITableVIew嵌套在UIScrollView里面,否则会出现各种奇怪的问题。

所以此处去掉UIScrollView

import UIKit
import Cartography
//let NewsBackgoudColor = UIColor(hexString: “#E6E6E6”)!
let NewsBackgoudColor = UIColor.white
//class NewsDetailViewController: UIViewController, NJKWebViewProgressDelegate, UIWebViewDelegate {
class NewsDetailViewController: UIViewController, UITableViewDelegate,UITableViewDataSource {
    var singleNews: SingleNews
    
    let titleLabel: UILabel
    let dateNameLabel: UILabel
    let subtitleLabel: UILabel
    
//    let newsWebView: UIWebView
//    var progressProxy: NJKWebViewProgress
//    var progressView: NJKWebViewProgressView
    
    let attachFileListTableView:UITableView
//    var scrollView = UIScrollView()
    
    init(singleNews: SingleNews) {
        self.singleNews = singleNews
        
        titleLabel = UILabel()
        dateNameLabel = UILabel()
        subtitleLabel = UILabel()
//        newsWebView = UIWebView()
//        progressProxy = NJKWebViewProgress()
//        progressView = NJKWebViewProgressView()
        
        attachFileListTableView = UITableView()
        
        super.init(nibName: nil, bundle: nil)
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError(“init(coder:) has not been implemented”)
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        self.navigationItem.title = “政策通知详情”
        self.view.backgroundColor = NewsBackgoudColor
        
//        scrollView.frame = CGRect(x: 0, y: 10, width: ScreenWidth, height: ScreenHeight – 10)
//        scrollView.backgroundColor = UIColor.white//UIColor(hexString: “#E6E6E6”)
//        scrollView.isScrollEnabled = true
//        self.view.addSubview(scrollView)
        titleLabel.frame = CGRect(x: 0, y: 10, width: ScreenWidth, height: 20)
        subtitleLabel.frame = CGRect(x: 0, y: 40, width: ScreenWidth, height: 16)
        dateNameLabel.frame = CGRect(x: 0, y: 66, width: ScreenWidth, height: 16)
        //        newsWebView.frame = CGRect(x: 0, y:90 , width: ScreenWidth, height: ScreenHeight – 90)
//        scrollView.addSubview(titleLabel)
//        scrollView.addSubview(subtitleLabel)
//        scrollView.addSubview(dateNameLabel)
//        //        scrollView.addSubview(newsWebView)
//        scrollView.addSubview(attachFileListTableView)
        self.view.addSubview(titleLabel)
        self.view.addSubview(subtitleLabel)
        self.view.addSubview(dateNameLabel)
        self.view.addSubview(attachFileListTableView)
        
        constrain(self.dateNameLabel, self.attachFileListTableView) { (dateNameLabel, attachFileListTableView) in
            attachFileListTableView.top == dateNameLabel.bottom + 25
            attachFileListTableView.left == attachFileListTableView.superview!.left
            attachFileListTableView.right == attachFileListTableView.superview!.right
            attachFileListTableView.bottom == attachFileListTableView.superview!.bottom
        }
        titleLabel.textColor = UIColor(hexString: “#333333”)
        titleLabel.textAlignment = .center
        titleLabel.font = UIFont.systemFont(ofSize: 16)
        titleLabel.numberOfLines = 2
        
        subtitleLabel.textColor = UIColor(hexString: “#333333”)
        subtitleLabel.textAlignment = .center
        subtitleLabel.font = UIFont.systemFont(ofSize: 14)
        
        dateNameLabel.textColor = UIColor(hexString: “#333333”)
        dateNameLabel.textAlignment = .center
        dateNameLabel.font = UIFont.systemFont(ofSize: 13)
        
        //newsWebView.scrollView.bounces = false
        //        newsWebView.backgroundColor = UIColor.red
        //newsWebView.scrollView.isScrollEnabled = false
        
        //        newsWebView.delegate = progressProxy;
        //        progressProxy.webViewProxyDelegate = self
        //        progressProxy.progressDelegate = self
        //
        //        progressView.progressBarView.backgroundColor = UIColor(hexString: “#FFD200”)
        
        self.attachFileListTableView.delegate = self
        self.attachFileListTableView.dataSource = self
        self.attachFileListTableView.tableFooterView = UIView()
        self.attachFileListTableView.backgroundColor = self.view.backgroundColor
        
//        let progressBarHeight: CGFloat = 2
//        let navigationBarBounds = SingletonRootNC().navigationBar.bounds
//        let barFrame = CGRect(x: 0, y: navigationBarBounds.size.height – progressBarHeight, width: navigationBarBounds.size.width, height: progressBarHeight)
//        progressView = NJKWebViewProgressView(frame: barFrame)
//        progressView.autoresizingMask = [.flexibleWidth, .flexibleTopMargin]
        
//        setupControls()
        updateNewsInfo()
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        
//        SingletonRootNC().navigationBar.addSubview(progressView)
        getDetailNewsInfo()
    }
    
    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillDisappear(animated)
        
//        progressView.removeFromSuperview()
    }
    
    /***************************************************************************
     * UITableViewDataSource Functions
     ***************************************************************************/
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        let attachFileCount = self.singleNews.filesInfo.count
        return attachFileCount
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        var curFileItemCell = FileTableViewCell(reuseIdentifier: FileTableViewCellId)
        if(indexPath.row < self.singleNews.filesInfo.count) {
            let curFileItem = self.singleNews.filesInfo[indexPath.row]
            curFileItemCell = FileTableViewCell(
                reuseIdentifier: FileTableViewCellId,
                fileName: curFileItem.name,
                fileType: curFileItem.type,
                backgroundColor: NewsBackgoudColor
            )
        }
        return curFileItemCell
    }
    
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
//        let cellHeight:CGFloat = UITableViewAutomaticDimension
//        return cellHeight
        return FileTableViewCellHeight
    }
    
    /***************************************************************************
     * UITableViewDelegate functions
     ***************************************************************************/
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        gLog.debug(“indexPath=\(indexPath)”)
        if(indexPath.row < self.singleNews.filesInfo.count) {
            let curFileItem = self.singleNews.filesInfo[indexPath.row]
            let fileId = curFileItem.id
            if let downloadFileUrl = NSURL(string: ServerApi.getDownloadFileUrl(id: fileId))  {
                UIApplication.shared.openURL(downloadFileUrl as URL)
            }
        }
    }
    
    //get detail news info, include attachment file list
    func getDetailNewsInfo(){
        self.pleaseWait()
        
        getUrlRespJson_async(
            httpMethod: .get,
            url:  ServerApi.getNoticeInfoUrl(noticeId: singleNews.id),
            parameters: nil,
            //respJsonHandle: { [weak self] (response) in
            respJsonHandle: { (response) in
                self.clearAllNotice()
                if response.isSuccess {
                    let singleNewsJson = response.successValue
                    gLog.debug(“singleNewsJson=\(singleNewsJson)”)
                    self.singleNews = SingleNews(fromJson: singleNewsJson)
                    self.updateNewsInfo()
                } else if response.isFailure {
                    self.noticeInfo(response.failedMessage)
                }
        })
    }
    
    func updateNewsInfo(){
        dispatchMain_async {
            self.titleLabel.text = self.singleNews.title
            self.subtitleLabel.text = self.singleNews.subtitle
            if let publishDate = self.singleNews.publishDate, let publisherName = self.singleNews.publisherName {
                self.dateNameLabel.text = “\(publishDate) 发布人:\(publisherName)”
            }
            self.attachFileListTableView.reloadData()
        }
    }
}

然后就可以了:

转载请注明:在路上 » 【已解决】iOS11中UITableView显示不出来

发表我的评论
取消评论

表情

Hi,您需要填写昵称和邮箱!

  • 昵称 (必填)
  • 邮箱 (必填)
  • 网址
57 queries in 0.087 seconds, using 18.87MB memory