ios 如何快速使用 Textfield 制作 UITableview？

How to make UITableview with Textfield in swift?

提问by Zablah

I want to make a table view with textfields in each cell,

我想在每个单元格中制作一个带有文本字段的表格视图，

I have a custom class in a swift file:

我在 swift 文件中有一个自定义类：

import UIKit

public class TextInputTableViewCell: UITableViewCell{

    @IBOutlet weak var textField: UITextField!
    public func configure(#text: String?, placeholder: String) {
        textField.text = text
        textField.placeholder = placeholder

        textField.accessibilityValue = text
        textField.accessibilityLabel = placeholder
    }
}

Then in my ViewController I have

然后在我的 ViewController 我有

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

    let cell = tableView.dequeueReusableCellWithIdentifier("TextInputCell") as! TextInputTableViewCell

    cell.configure(text: "", placeholder: "Enter some text!")

     text = cell.textField.text

    return cell

}

That works well:

这很好用：

But when the user enters text in the textfield and press the button I want to store the strings of each textfield in an array. I have tried with

但是当用户在文本字段中输入文本并按下按钮时，我想将每个文本字段的字符串存储在一个数组中。我试过

text = cell.textField.text
println(text)

But it prints nothing like if it was empty

但它不会打印任何东西，就像它是空的一样

How can I make it work?

我怎样才能让它工作？

回答by Fred Faust

In your view controller become a UITextFieldDelegate

在您的视图控制器中成为 UITextFieldDelegate

View Controller

视图控制器

class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate, UITextFieldDelegate {

    var allCellsText = [String]()

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

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

        cell.theField.delegate = self // theField is your IBOutlet UITextfield in your custom cell

        cell.theField.text = "Test"

        return cell
    }

    func textFieldDidEndEditing(textField: UITextField) {
        allCellsText.append(textField.text!)
        println(allCellsText)
    }
}

This will always append the data from the textField to the allCellsText array.

这将始终将 textField 中的数据附加到 allCellsText 数组。

回答by knownUnknown

create a variable

创建一个变量

var arrayTextField = [UITextField]()

after this in your func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell{} add

在此之后func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell{} 添加

self.arrayTextField.append(textfield)

before returning cell, after this to display the values using

在返回单元格之前，在此之后使用显示值

for textvalue in arrayTextField{
        println(textvalue.text)
    }

回答by user2680768

this method is init the cell,u have not model to save this datas,so

这个方法是初始化单元格，你没有模型来保存这些数据，所以

text = cell.textfield.text

is nothing! you can init var textStringin viewcontroller,an inherit UITextFieldDelegate

没什么！您可以var textString在视图控制器中初始化，继承 UITextFieldDelegate

optional func textFieldDidEndEditing(_ textField: UITextField)
{
     textString = _textField.text
}
optional func textFieldShouldReturn(_ textField: UITextField) -> Bool{
    return true
}

and cell.textField.text = textString

和 cell.textField.text = textString

回答by justdan0227

So here is a way to do it using the suggestion of having a textfield array. It uses the tag of the textfield to ensure it does not get added multiple times when you scroll.

所以这是一种使用文本字段数组的建议来做到这一点的方法。它使用文本字段的标签来确保滚动时不会多次添加它。

// Assumes that you have a label and a textfield as a part of you tableViewCell

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    guard let cell = tableView.dequeueReusableCell(withIdentifier: "cell") as? BodyStatsTableViewCell else {
        return UITableViewCell()
    }
    cell.rowLabel.text = bodyTableArray[indexPath.row].rowTitle
    let tagValue = indexPath.row + 100
    var newRow = true
    for textvalue in arrayTextField{
        if textvalue.tag == tagValue {
            newRow = false
        }
    }
    if newRow {
        cell.rowTextField.tag = tagValue
        self.arrayTextField.append(cell.rowTextField)
        cell.rowTextField.text = bodyTableArray[indexPath.row].rowValue
    }
    return cell
}

// And then you cam get the values when you want to save with where tag - 100 will be the array index value to update

// 然后你可以在你想用 where 标签保存时获取值 - 100 将是要更新的数组索引值

for textvalue in arrayTextField{ print(textvalue.text) }

用于 arrayTextField 中的文本值{ print(textvalue.text) }