titleForHeaderInSection bewegen sich nicht

Question

Ich habe einen UITableViewController mit einem Kopfansicht ähnlich:

https://github.com/andersonkxiass/UITableViewHeader

Aber ich brauche einen Titel Header in meinem Tisch haben, an erster Stelle, es ist richtig, aber wenn ich starten den Tabellentitel bleibt statisch

dies ist mein Code zu bewegen:

class tableComent: UITableViewController { 

    var testComentName = [String]() 


    var headerView = UIView() 

    var viewHeight:CGFloat = 350 { 
     didSet { 
      moveHeader() 
     } 
    } 

    var scrollOffset:CGFloat = 0 { 
     didSet { 
      moveHeader() 
     } 
    } 

    private func loadNib() -> UIView { 
     let bundle = NSBundle(forClass: self.dynamicType) 
     return bundle.loadNibNamed("headerTable", owner: nil, options: nil)[0] as! UIView 
    } 

    func moveHeader() { 
     let viewHeight = (scrollOffset >= 0) ? self.viewHeight : self.viewHeight - scrollOffset 
     headerView.frame = CGRect(x: 0, y: -viewHeight, width: view.bounds.width, height: viewHeight) 
    } 

    var backView = UIView() 

    override func viewDidLoad() { 
     super.viewDidLoad() 
     headerView = loadNib() 

     backView.frame = CGRect(x: 0, y: 0 , width: view.bounds.width, height: view.bounds.height) 
     backView.backgroundColor = tableView.backgroundColor 

     view.addSubview(backView) 
     view.sendSubviewToBack(backView) 

     // Set the contentInset to make room for the image. 
     tableView.contentInset = UIEdgeInsets(top: viewHeight, left: 0, bottom: 0, right: 0) 

     // Add the imageView to the TableView and send it to the back. 
     view.addSubview(headerView) 
     view.sendSubviewToBack(headerView) 


     self.tableView.separatorStyle = UITableViewCellSeparatorStyle.None 

     testComentName = ["Andres Gómez","Beatriz Gómez", "Francisco Manzo", "Rodolfo Martínez","Enrique Vega","Ana Lemus"] 
     loadTable() 

    } 

    override func viewWillAppear(animated: Bool) { 
     loadTable() 
    } 

    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
    } 

    override func viewDidLayoutSubviews() { 
     // Update the image position after layout changes. 
     moveHeader() 
    } 

    // Update scrollOffset on tableview scroll 
    override func scrollViewDidScroll(scrollView: UIScrollView) { 
     scrollOffset = tableView.contentOffset.y + viewHeight 
    } 

    override func numberOfSectionsInTableView(tableView: UITableView) -> Int { 
     return 1 
    } 

    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int { 
     return testComentName.count 
    } 

    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { 
      let cell = tableView.dequeueReusableCellWithIdentifier("CellComentYo", forIndexPath: indexPath) as! celdaComentYo 
      cell.selectionStyle = .None 
      cell.nomLabel.text = testComentName[indexPath.row] 
      return cell 
    } 

    override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat { 
     return UITableViewAutomaticDimension 
    } 

    override func tableView(tableView: UITableView, estimatedHeightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat { 
     return UITableViewAutomaticDimension 
    } 

    override func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? { 

     return "My Title:" 
    } 

    func loadTable() { 
     self.tableView.reloadData() 
    } 

} 

ich denke, das Problem in scrollViewDidScroll ist, aber ich weiß nicht, ho w um den Scroll-Header zu aktivieren.

Danke!

Answer 1

Ich habe es immer so gemacht:

1. einen Imageview hinzufügen an der Oberseite des Controllers

2. Fügen Sie den Tableview mit einem leeren Header (gleiche Größe wie Bild

   //ImageView 
       imageView.frame = CGRect(x: 0, y: 0, width: screenWidth, height: self.headerHeight) 
       imageView.image = UIImage(assetIdentifier: headerImageAsset) 
       imageView.contentMode = UIViewContentMode.ScaleAspectFill 
       imageView.clipsToBounds = true 
   
       //Create empty header for the table 
       let headerView = UIView(frame: CGRect(x: 0, y: 0, width: screenWidth, height: self.headerHeight)) 
       headerView.backgroundColor = UIColor.clearColor() 
       tableView.tableHeaderView = headerView 
   

Und auf dem Scroll-Delegaten:

func scrollViewDidScroll(scrollView: UIScrollView) { 
     let yScroll = scrollView.contentOffset.y 

     if yScroll < 0.0 { 
      imageView.frame = CGRectMake(yScroll, 0, screenWidth - (yScroll * 2), self.headerHeight - yScroll) 
     } else { 
      self.imageView.frame = CGRectMake(0, -yScroll/3, screenWidth, self.headerHeight) 
     } 
    }