ios - 从 TextBox 到 Widget 的文本？

Question

所以我正在制作一个iOS应用程序，它允许您在文本框中输入文本，然后有一个按钮将在标签上显示“文本”，并且标签上的“文本”将显示在通知中心，在小部件上，但是出了问题，因为每次我运行应用程序时它都会失败并将我扔到 AppDelegate.Swift 中并突出显示这个特定部分:“class AppDelegate: UIResponder，UIApplicationDelegate {"

出现错误“Thread 1: signal SIGABRT”

我不知道还能做什么；(请帮忙!!

这是 ViewController.Swift 代码:

import UIKit

class ViewController: UIViewController {

    @IBOutlet var UserInput: UITextField!

    @IBOutlet var TextDisplay: UILabel!

    @IBAction func DisplayButton(sender: AnyObject) {

        let Text:String = UserInput.text!

        if  let Text = Int(Text) {

            print("Computer says no!")

        } else {
            TextDisplay.text = (Text)

        }



    }


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


        let SharedDefaults = NSUserDefaults(suiteName: "group.St33v3n.TextOnWidget")

        SharedDefaults?.setObject(UserInput, forKey: "StringKey")

        SharedDefaults?.synchronize()

    }

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


}

这是 TodayView Controller 代码(来自小部件的代码):

import UIKit

import NotificationCenter

class TodayViewController: UIViewController, NCWidgetProviding {


    @IBOutlet var TextToWidget: UILabel!


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

    }

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

    func widgetPerformUpdateWithCompletionHandler(completionHandler: ((NCUpdateResult) -> Void)) {


        let ShareDefaults = NSUserDefaults(suiteName:"group.St33v3n.TextOnWidget")

        self.TextToWidget.text = ShareDefaults?.objectForKey("StringKey") as? String

        completionHandler(NCUpdateResult.NewData)
    }

}

Answer 1

行内

SharedDefaults?.setObject(UserInput, forKey: "StringKey")

您传递的是 UITextField 对象，而不是文本。你应该使用

SharedDefaults?.setObject(UserInput.text, forKey: "StringKey")

我不确定这是否是导致崩溃的原因，但无论如何都需要更正 ;)