從選擇中刪除字符串從UIPicker

我正在創建一個預訂應用程序。我正在使用UIPickers顯示打開的時間。我有選擇器功能齊全，但不知道如何在用戶從提供的選項中選擇一個後刪除預訂時間。我對Xcode比較陌生，所以任何信息都非常感謝！從選擇中刪除字符串從UIPicker

import Foundation 
import UIKit 
import Firebase 
import FirebaseDatabase 

class sTimeSelectionViewController:UIViewController,UIPickerViewDataSource,UIPickerViewDelegate { 
    @IBOutlet weak var myPicker: UIPickerView! 
    @IBOutlet weak var myLabel: UILabel! 
    let pickerData = ["9:30","10:30","11:30","12:30","1:30","2:30"] 
    override func viewDidLoad() { 
     super.viewDidLoad() 
     myPicker.dataSource = self 
     myPicker.delegate = self 
     myPicker.tag = 1 
    } 
    func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int { 
     return 1 
    } 
    func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int { 
     return pickerData.count 
    } 
    func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? { 
     return pickerData[row] 
    } 
    func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) { 
     myLabel.text = pickerData[row] 
    } 
    @IBAction func postData(sender: AnyObject) { 
     let ref = FIRDatabase.database().referenceFromURL("deleted URL") 
     ref.child("Time").setValue(myLabel.text) 
    } 
}

謝謝！

來源

2017-04-19 Mitchell Markoff

首先從改變你的不斷聲明pickerData變量

var pickerData = ["9:30","10:30","11:30","12:30","1:30","2:30"].

接下來，您將需要您的myLabel.text代碼後刪除數組元素在你的方法didSelectRow

pickerData.removeAtIndex(row)

並重裝選擇器

myPicker.reloadAllComponents()

來源

2017-04-19 16:58:45

嗨，獅子座。感謝您的代碼！我有一個問題。我已經將您的代碼添加到我的項目中，並且在按下按鈕選擇該行之前數據正在刪除自己（當您滾動數據時，數據會自動刪除）。任何想法如何可以修復？ –

從選擇中刪除字符串從UIPicker

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