UITableView Using Swift

谁说我不能喝 提交于 2020-01-09 09:03:06

问题


My TapCell1.swift

This is Custom UITableViewCell View

import UIKit

class TapCell1: UITableViewCell
{
    @IBOutlet var labelText : UILabel

    init(style: UITableViewCellStyle, reuseIdentifier: String!)
    {
        println("Ente")
        super.init(style: UITableViewCellStyle.Value1, reuseIdentifier: reuseIdentifier)
    }

    override func setSelected(selected: Bool, animated: Bool)
    {

        super.setSelected(selected, animated: animated)
    }
}

My ViewController.swift

Its All DataSource and Delegates are set correctly.But My custom Cell is not displaying.

import UIKit

class NextViewController: UIViewController, UITableViewDelegate, UITableViewDataSource
    {
        @IBOutlet var label: UILabel

        @IBOutlet var tableView : UITableView

        var getvalue = NSString()

        override func viewDidLoad()
        {
            super.viewDidLoad()

            label.text="HELLO GOLD"

            println("hello : \(getvalue)")
            self.tableView.registerClass(TapCell1.self, forCellReuseIdentifier: "Cell")
        }

        func tableView(tableView:UITableView!, numberOfRowsInSection section:Int)->Int
        {
            return 5
        }

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

        func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell!
        {
            var cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as TapCell1
            cell.labelText.text="Cell Text"
            return cell
        }

        override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
        }
}

The Problem is My custom cell is Not displayed. Please suggest anything i did wrong.

Note: here is My code My File Download Link


回答1:


I finally did it.

For TapCell1.swift

import UIKit

class TapCell1: UITableViewCell {

    @IBOutlet var labelTitle: UILabel

    init(style: UITableViewCellStyle, reuseIdentifier: String!) {
        super.init(style: UITableViewCellStyle.Value1, reuseIdentifier: reuseIdentifier)
    }
}

For NextViewController.swift

import UIKit

class NextViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {

    @IBOutlet var tableView: UITableView

    var ListArray=NSMutableArray()

    override func viewDidLoad() {
        super.viewDidLoad()

        let nibName = UINib(nibName: "TapCell1", bundle:nil)
        self.tableView.registerNib(nibName, forCellReuseIdentifier: "Cell")

        for i in 0...70 {
            ListArray .addObject("Content: \(i)")
        }
    }


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

    func tableView(tableView: UITableView!, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
        return 51
    }

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

    func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as TapCell1

        //cell.titleLabel.text = "\(ListArray.objectAtIndex(indexPath.item))"

        cell.labelTitle.text = "\(ListArray.objectAtIndex(indexPath.row))"

        return cell
    }
}

My working code link: CUSTOMISED TABLE




回答2:


You should register the class for the cell. For that do change this line of code to

self.tableView.registerClass(TapCell1.classForCoder(), forCellReuseIdentifier: "Cell")

Edit

You code is looks fine i checked it

//cell.labelText.text="Cell Text"

cell.textLabel.text="Cell Text"   // use like this



回答3:


The solution is most likely pinpointed to setting the cell height manually as such:

override func tableView(tableView:UITableView!, heightForRowAtIndexPath indexPath:NSIndexPath)->CGFloat
{
    return 44
}

I believe it's an Xcode beta 6 bug.




回答4:


I have now been able to get Custom UITableViewCell to work.

Works on

  • Runs on Xcode 6 beta 6
  • Runs on Xcode 6 beta 5

  • iOS is 7.1

How

  • I have created a ".xib" file for the cell.
  • I copy it into the storyboard.
  • Via the storyboard I give it a Identifier.
  • I make sure it is a sub child of a tableview

Doing it this way, you do not need to register a class / nib etc.

This is my custom cell.

import UIKit

class TestCell: UITableViewCell {

    @IBOutlet var titleImageView: UIImageView!
    @IBOutlet var titleLabel: UILabel!

    override init(style: UITableViewCellStyle, reuseIdentifier: String!) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
    }

    override func awakeFromNib() {
        super.awakeFromNib()
        // Initialization code
    }

    required init(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }
}

In your view, or where ever you extend "UITableViewDataSource". Make sure "cell2" is the same as the "Identifier" that you gave it via the storyboard.

func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell! {

    var cell:TestCell = tableView.dequeueReusableCellWithIdentifier("cell2", forIndexPath: indexPath) as TestCell

    // Example of using the custom elements.
    cell.titleLabel.text = self.items[indexPath.row]

    var topImage = UIImage(named: "fv.png")
    cell.titleImageView.image = topImage

    return cell
}

uitableviewcell




回答5:


Check your Story board select the cell and look at the "identity inspector in that select CLASS type your CustomClass and MODULE type your project name

I have done this It works perfectly try this tip to avoid error to see below image and code

override func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath?) -> UITableViewCell? {

 // let cell = UITableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: nil)

  //  cell.textLabel.text = array[indexPath!.row] as String

let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as CustomTableViewCell

    cell.nameLabel.text = array[indexPath!.row] as String
    cell.RestaurentView.image = UIImage(named:images[indexPath!.row])

    return cell
}



回答6:


Try this following code

var cell:CustomTableViewCell = tableView.dequeueReusableCellWithIdentifier("CustomTableViewCell") as CustomTableViewCell

https://github.com/iappvk/TableView-Swift




回答7:


If you are not using Storyboard then create a new file as subclass of UITableViewCell check the checkbox "also create xib files" after that set your custom cell .and here is the code for tableview

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
   {

    var customcell:CustomTableViewCellClass? = tableView.dequeueReusableCellWithIdentifier("cell") as? CustomTableViewCellClass
    if  (customcell==nil)
    {
        var nib:NSArray=NSBundle.mainBundle().loadNibNamed("CustomTableViewCellClass", owner: self, options: nil)

        customcell = nib.objectAtIndex(0) as? CustomTableViewCell
    }

    return customcell!


}



回答8:


Try this following code:

var cell = tableView.dequeueReusableCell(withIdentifier: "CustomCellTableView") as? CustomCellTableView



回答9:


Extention of NSOject

extension NSObject {    
    var name: String {
        return String(describing: type(of: self))
    } 
    class var name: String {
        return String(describing: self)
    }
}

Properties on Custom TableViewCell

class var nib: UINib {
    return UINib(nibName:YourTableViewCell.name, bundle: nil)
}
class var idetifier: String {
    return YourTableViewCell.name
}

Add in UIViewController

self.tableView.registerNib(YourTableViewCell.nib, forCellReuseIdentifier: YourTableViewCell.idetifier)

let cell = tableView.dequeueReusableCellWithIdentifier(YourTableViewCell.idetifier, forIndexPath: indexPath) as! YourTableViewCell



回答10:


It is Purely swift notation an working for me

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell 
{ 
var cellIdentifier:String = "CustomFields" 
var cell:CustomCell? = tableView.dequeueReusableCellWithIdentifier(cellIdentifier) as? CustomCell
 if (cell == nil) 
{ 
var nib:Array = NSBundle.mainBundle().loadNibNamed("CustomCell", owner: self, options: nil) cell = nib[0] as? CustomCell
 } 
return cell! 
}


来源:https://stackoverflow.com/questions/24056183/uitableview-using-swift

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