从 Swift 中的 Eureka Forms 获取值

Question

我是 Swift 编程新手，我正在尝试使用 Eureka 库创建一个表单。

该表格已经可以使用，但我无法从表格中获取数据。

我试图将数据一一存储到全局变量中，以便在按下按钮时打印。

问题是代码总是被破坏，我不知道如何纠正它。

这是我的代码：

import UIKit
import Eureka

class ViewController: FormViewController
{
    //Creating Global Variables
    var name: String = ""
    var data: Date? = nil

    @IBAction func testebutton(_ sender: Any)
    {
        print(name)
        print(data)
    }

    override func viewDidLoad()
    {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        form +++ Section()
            <<< TextRow()
                {
                    row in
                row.title = "Name"
                row.tag = "name"
            }
            <<< DateRow()
                {
                $0.title = "Birthdate"
                $0.value = Date()
                $0.tag = "date"
                }

        //Gets value from form
        let row: TextRow? = form.rowBy(tag: "name")
        let nome = row?.value

        name = nome!

    }

谢谢你的时间

Answer 1

一旦 DateRow 或 TextRow 更改，您需要使用 来.onChange更新您的值，或者您可以直接访问该值并转换为您可以使用基本代码在此示例代码中form.rowBy(tag: "tagName")访问的正确类型的行我使用这两种方法.value

import UIKit
import Eureka

class GettingDataViewController: FormViewController {

    //Creating Global Variables
    var name: String = ""
    var data: Date? = nil

    @IBAction func testebutton(_ sender: Any)
    {
        print(name)
        print(data)
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        form +++ Section()
            <<< TextRow()
                {
                    row in
                    row.title = "Name"
                    row.tag = "name"
                }.onChange({ (row) in
                    self.name = row.value != nil ? row.value! : "" //updating the value on change
                })
            <<< DateRow()
                {
                    $0.title = "Birthdate"
                    $0.value = Date()
                    $0.tag = "date"
                }.onChange({ (row) in
                    self.data = row.value  //updating the value on change
                })
            <<< ButtonRow(tag: "test").onCellSelection({ (cell, row) in
                print(self.name)
                print(self.data)

                //Direct access to value
                if let textRow = self.form.rowBy(tag: "name") as? TextRow
                {
                    print(textRow.value)
                }

                if let dateRow = self.form.rowBy(tag: "date") as? DateRow
                {
                    print(dateRow.value)
                }

            })

    }

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

}