本文介绍了带有XIB Swift的UITableViewCell子类的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我有一个 UITableViewCell 子类 NameInput 连接到带有自定义 init的xib 方法。

I have a UITableViewCell subclass NameInput that connects to an xib with a custom init method.

class NameInput: UITableViewCell {

    class func make(label: String, placeholder: String) -> NameInput {

        let input = NSBundle.mainBundle().loadNibNamed("NameInput", owner: nil, options: nil)[0] as NameInput

        input.label.text = label
        input.valueField.placeholder = placeholder
        input.valueField.autocapitalizationType = .Words

        return input
    }

}

我有没有办法在 viewDidLoad 方法仍然可以重用它?或者我是否必须使用重用标识符注册类本身?

Is there a way I can initialize this cell in the viewDidLoad method and still reuse it? Or do I have to register the class itself with a reuse identifier?

推荐答案

习惯的NIB过程是:


  1. 使用重用标识符注册NIB。在Swift 3中:

  1. Register your NIB with the reuse identifier. In Swift 3:

override func viewDidLoad() {
    super.viewDidLoad()

    tableView.register(UINib(nibName: "NameInput", bundle: nil), forCellReuseIdentifier: "Cell")
}

在Swift 2中:

override func viewDidLoad() {
    super.viewDidLoad()

    tableView.registerNib(UINib(nibName: "NameInput", bundle: nil), forCellReuseIdentifier: "Cell")
}


  • 定义您的自定义单元格类:

  • Define your custom cell class:

    import UIKit
    
    class NameInput: UITableViewCell {
    
        @IBOutlet weak var firstNameLabel: UILabel!
        @IBOutlet weak var lastNameLabel: UILabel!
    
    }
    


  • 在Interface Builder中创建一个NIB文件(带有步骤1)中引用的相同名称:

  • Create a NIB file in Interface Builder (with the same name referenced in step 1):


    • 指定NIB中tableview单元格的基类以引用自定义单元格class(在步骤2中定义)。

    • Specify the base class of the tableview cell in the NIB to reference your custom cell class (defined in step 2).

    将NIB中单元格中的控件之间的引用连接到 @IBOutlet 自定义单元格类中的引用。

    Hook up references between the controls in the cell in the NIB to the @IBOutlet references in the custom cell class.

    您的 cellForRowAtIndexPath然后将实例化单元格并设置标签。在Swift 3中:

    Your cellForRowAtIndexPath would then instantiate the cell and set the labels. In Swift 3:

    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! NameInput
    
        let person = people[indexPath.row]
        cell.firstNameLabel.text = person.firstName
        cell.lastNameLabel.text = person.lastName
    
        return cell
    }
    

    在Swift 2中:

    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! NameInput
    
        let person = people[indexPath.row]
        cell.firstNameLabel.text = person.firstName
        cell.lastNameLabel.text = person.lastName
    
        return cell
    }
    


  • 我从你的例子中不完全确定你在你的单元格上放置了什么控件,但上面有两个 UILabel 控件。连接 @IBOutlet 引用对您的应用有意义。

    I wasn't entirely sure from your example what controls you placed on your cell, but the above has two UILabel controls. Hook up whatever @IBOutlet references make sense for your app.

    这篇关于带有XIB Swift的UITableViewCell子类的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

    08-14 08:01