一個頁面上的多個UITextFields顯示日期，但只有UITextFields顯示器之一日期從兩個DatePickers

我現在有2個UITextFields，一個需要返回日期和其他需要返回時間slected。一個頁面上的多個UITextFields顯示日期，但只有UITextFields顯示器之一日期從兩個DatePickers

我遇到的問題是，如果我點擊第一個文本字段（即「出生日期：」），我選擇的日期被返回（顯然這正是我想要發生的）但是，如果我點擊第二個文本字段（即「第一頓時間：」），第二個文本字段不會更新，但第一個文本字段是（這是我的第一個問題）。

我遇到的下一個問題是，當我點擊我的第二個文本字段（即「第一頓飯的時間：」）時，日期顯示在選擇器上，而不是時間（我想顯示時間）。

我認爲這兩個問題是相關的，但我無法弄清楚它是什麼，我缺少的兩個採摘區分彼此。

的計劃是再有第三個文本框（即「最後一頓飯的時間」）也顯示時間（到第二個文本字段顯示不同），所以我想，一旦我能得到這兩個問題目前我排序後，我可以將相同的解決方案應用於第三個文本字段。

正如你能想象（基於文本字段我有量），我砍倒代碼只涉及到日期選取器位。

Picture of text fields from my storyboard

Picture of date picker (the same picker shows up for both text fields)

import UIKit 

class ProfileCreator: UIViewController, UIPickerViewDelegate, UITextFieldDelegate, UIPickerViewDataSource { 

var output: Int = 0 
var output2: Int = 0 

// -------------------------------------------------------------------------------------- // 

// DOB Selector From Text Field Start 1 // 

@IBOutlet weak var DOBSelectorTextField: UITextField! 

func textFieldDidBeginEditing(DOBtextField: UITextField) { 
    let DOBPicker = UIDatePicker() 
    DOBtextField.inputView = DOBPicker 
    DOBPicker.datePickerMode = UIDatePickerMode.Date 
    DOBPicker.addTarget(self, action: "DOBpickerchanged:", forControlEvents: .ValueChanged) 
} 

func textFieldShouldReturn(DOBtextField: UITextField) -> Bool { 
    DOBtextField.resignFirstResponder() 
    return true 

} 

func DOBpickerchanged(DOBsender: UIDatePicker) { 
    let DOBformatter = NSDateFormatter() 
    DOBformatter.dateFormat = "dd MMMM yyyy" 
    DOBSelectorTextField.text = DOBformatter.stringFromDate(DOBsender.date) 

} 

// DOB Selector From Text Field End 1 // 

// -------------------------------------------------------------------------------------- //  

// First Meal Time Text Field Start 1 // 

@IBOutlet weak var FirstMealTimeTextField: UITextField! 

@IBAction func FirstMealTimeTextField(FirstMealTimeSender: UITextField) { 

    let FirstMealTimePicker = UIDatePicker() 
    FirstMealTimeSender.inputView = FirstMealTimePicker 
    FirstMealTimePicker.datePickerMode = UIDatePickerMode.Time 
    FirstMealTimePicker.addTarget(self, action: "FirstMealTimeChanged:", forControlEvents: .ValueChanged) 

} 

func FirstMealTimeChanged(FirstMealTimesender: UIDatePicker) { 
    let FirstMealtimeFormatter = NSDateFormatter() 
    FirstMealtimeFormatter.dateFormat = "HH:mm" 
    FirstMealTimeTextField.text = FirstMealtimeFormatter.stringFromDate(FirstMealTimesender.date) 
} 

// First Meal Time Text Field End 1 // 

// -------------------------------------------------------------------------------------- // 

override func viewDidLoad() { 
    super.viewDidLoad() 

// -------------------------------------------------------------------------------------- // 

// DOB Selector From Text Field Start 2 // 

    DOBSelectorTextField.delegate = self 

// DOB Selector From Text Field End 2 // 

// -------------------------------------------------------------------------------------- // 

// First Meal Time Text Field Start 2 // 

    FirstMealTimeTextField.delegate = self 

// First Meal Time Text Field End 2 // 

} 

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

下面是涉及到我的「創建配置文件」頁我的全部代碼。也許這將有助於理解我迄今爲止所做的事情。我非常有信心在創建數據來自數組的數據採集器時，我正在努力的是在同一頁面上執行多個日期選擇器。

import UIKit 

class ProfileCreator: UIViewController, UIPickerViewDelegate, UITextFieldDelegate, UIPickerViewDataSource { 

var output: Int = 0 
var output2: Int = 0 

// -------------------------------------------------------------------------------------- // 

// DOB Selector From Text Field Start 1 // 

@IBOutlet weak var DOBSelectorTextField: UITextField! 

func textFieldDidBeginEditing(DOBtextField: UITextField) { 
    let DOBPicker = UIDatePicker() 
    DOBtextField.inputView = DOBPicker 
    DOBPicker.datePickerMode = UIDatePickerMode.Date 
    DOBPicker.addTarget(self, action: "DOBpickerchanged:", forControlEvents: .ValueChanged) 
} 

func textFieldShouldReturn(DOBtextField: UITextField) -> Bool { 
    DOBtextField.resignFirstResponder() 
    return true 

} 

func DOBpickerchanged(DOBsender: UIDatePicker) { 
    let DOBformatter = NSDateFormatter() 
    DOBformatter.dateFormat = "dd MMMM yyyy" 
    DOBSelectorTextField.text = DOBformatter.stringFromDate(DOBsender.date) 

} 

// DOB Selector From Text Field End 1 // 

// -------------------------------------------------------------------------------------- // 

// Gender Selector From Text Field Start 1 // 

@IBOutlet weak var GenderSelectorTextField: UITextField! 
var GenderSelectorData = ["Male", "Female"] 
var GenderSelectorPicker = UIPickerView() 

// Gender Selector From Text Field End 1 // 

// -------------------------------------------------------------------------------------- // 

// Height Whole Number Text Field Start 1 // 

@IBOutlet weak var HeightWholeNumberTextField: UITextField! 

// Height Whole Number Text Field Start 1 // 

// -------------------------------------------------------------------------------------- // 

// Height Whole Number Unit Selector Text Field Start 1 // 

@IBOutlet weak var HeightWholeNumberUnitSelectorTextField: UITextField! 
var HeightWholeNumberUnitSelectorData = ["m", "ft"] 
var HeightWholeNumberUnitSelectorPicker = UIPickerView() 

// Height Whole Number Unit Selector Text Field Start 1 // 

// -------------------------------------------------------------------------------------- // 

// Height Decimal Number Text Field Start 1 // 

@IBOutlet weak var HeightDecimalTextField: UITextField! 

// Height Decimal Number Text Field End 1 // 

// -------------------------------------------------------------------------------------- // 

// Height Decimal Number Unit Selector Text Field Start 1 // 

@IBOutlet weak var HeightDecimalNumberUnitSelectorTextField: UITextField! 
var HeightDecimalNumberUnitSelectorData = ["cm", "inch"] 
var HeightDecimalNumberUnitSelectorPicker = UIPickerView() 

// Height Decimal Number Unit Selector Text Field End 1 // 

// -------------------------------------------------------------------------------------- // 

// Current Weight Whole Number Text Field Start 1 // 

@IBOutlet weak var CurrentWeightWholeNumberTextField: UITextField! 

// Current Weight Whole Number Text Field Start 1 // 

// -------------------------------------------------------------------------------------- // 

// Current Weight Whole Number Unit Selector Text Field Start 1 // 

@IBOutlet weak var CurrentWeightWholeNumberUnitSelectorTextField: UITextField! 
var CurrentWeightWholeNumberUnitSelectorData = ["kg", "lb"] 
var CurrentWeightWholeNumberUnitSelectorPicker = UIPickerView() 

// Current Weight Whole Number Unit Selector Text Field Start 1 // 

// -------------------------------------------------------------------------------------- // 

// Current Weight Decimal Number Text Field Start 1 // 

@IBOutlet weak var CurrentWeightDecimalNumberTextField: UITextField! 

// Current Weight Decimal Number Text Field End 1 // 

// -------------------------------------------------------------------------------------- // 

// Current Weight Decimal Number Unit Selector Text Field Start 1 // 

@IBOutlet weak var CurrentWeightDecimalNumberUnitSelectorTextField: UITextField! 
var CurrentWeightDecimalNumberUnitSelectorData = ["g", "oz"] 
var CurrentWeightDecimalNumberUnitSelectorPicker = UIPickerView() 

// Current Weight Decimal Number Unit Selector Text Field End 1 // 

// -------------------------------------------------------------------------------------- // 

// Current Fitness Goal Selector Text Field Start 1 // 

@IBOutlet weak var CurrentFitnessGoalSelectorTextField: UITextField! 
var CurrentFitnessGoalSelectorData = ["Lose Fat", "Gain Muscle", "Maintain Physique"] 
var CurrentFitnessGoalSelectorPicker = UIPickerView() 

// Current Fitness Goal Selector Text Field End 1 // 

// -------------------------------------------------------------------------------------- // 

// Weekly Activity Level Text Field Start 1 // 

@IBOutlet weak var WeeklyActivityLevelTextField: UITextField! 
var WeeklyActivityLevelTextFieldData = ["I am sedentary (little or no exercise)", "I am lightly active (light exercise/sports 1-3 days per week)", "I am moderately active (moderate exercise/sports 3-5 days per week)", "I am very active (hard exercise/sports 6-7 days a week)", "I am extra active (very hard exercise/sports & physical job or 2 x training"] 
var WeeklyActivityLevelSelectorPicker = UIPickerView() 

// Weekly Activity Level Text Field End 1 // 

// -------------------------------------------------------------------------------------- // 

// First Meal Time Text Field Start 1 // 

@IBOutlet weak var FirstMealTimeTextField: UITextField! 

@IBAction func FirstMealTimeTextField(FirstMealTimeSender: UITextField) { 

    let FirstMealTimePicker = UIDatePicker() 
    FirstMealTimeSender.inputView = FirstMealTimePicker 
    FirstMealTimePicker.datePickerMode = UIDatePickerMode.Time 
    FirstMealTimePicker.addTarget(self, action: "FirstMealTimeChanged:", forControlEvents: .ValueChanged) 

} 

func FirstMealTimeChanged(FirstMealTimesender: UIDatePicker) { 
    let FirstMealtimeFormatter = NSDateFormatter() 
    FirstMealtimeFormatter.dateFormat = "HH:mm" 
    FirstMealTimeTextField.text = FirstMealtimeFormatter.stringFromDate(FirstMealTimesender.date) 
} 

// First Meal Time Text Field End 1 // 

// -------------------------------------------------------------------------------------- // 

// Last Meal Time Text Field Start 1 // 



// Last Meal Time Text Field End 1 // 

// -------------------------------------------------------------------------------------- // 

// Close keyboard start // 

func closekeyboard() { 
    self.view.endEditing(true) 
} 

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) { 
    closekeyboard() 
} 

// Close keyboard end // 

// -------------------------------------------------------------------------------------- // 

override func viewDidLoad() { 
    super.viewDidLoad() 

// -------------------------------------------------------------------------------------- // 

// DOB Selector From Text Field Start 2 // 

    DOBSelectorTextField.delegate = self 

// DOB Selector From Text Field End 2 // 

// -------------------------------------------------------------------------------------- // 

// Gender Selector From Text Field Start 2 // 

    GenderSelectorPicker.delegate = self 
    GenderSelectorPicker.dataSource = self 
    GenderSelectorTextField.inputView = GenderSelectorPicker 

// Gender Selector From Text Field End 2 // 

// -------------------------------------------------------------------------------------- // 

// Height Whole Number Unit Selector Text Field Start 2 // 

    HeightWholeNumberUnitSelectorPicker.delegate = self 
    HeightWholeNumberUnitSelectorPicker.dataSource = self 
    HeightWholeNumberUnitSelectorTextField.inputView = HeightWholeNumberUnitSelectorPicker 

// Height Whole Number Unit Selector Text Field End 2 // 

// -------------------------------------------------------------------------------------- // 

// Height Decimal Unit Selector Text Field Start 2 // 

    HeightDecimalNumberUnitSelectorPicker.delegate = self 
    HeightDecimalNumberUnitSelectorPicker.dataSource = self 
    HeightDecimalNumberUnitSelectorTextField.inputView = HeightDecimalNumberUnitSelectorPicker 

// Height Decimal Unit Selector Text Field End 2 // 

// -------------------------------------------------------------------------------------- // 

// Current Weight Whole Number Unit Selector Text Field Start 2 // 

    CurrentWeightWholeNumberUnitSelectorPicker.delegate = self 
    CurrentWeightWholeNumberUnitSelectorPicker.dataSource = self 
    CurrentWeightWholeNumberUnitSelectorTextField.inputView = CurrentWeightWholeNumberUnitSelectorPicker 

// Current Weight Whole Number Unit Selector Text Field End 2 // 

// -------------------------------------------------------------------------------------- // 

// Current Weight Decimal Unit Selector Text Field Start 2 // 

    CurrentWeightDecimalNumberUnitSelectorPicker.delegate = self 
    CurrentWeightDecimalNumberUnitSelectorPicker.dataSource = self 
    CurrentWeightDecimalNumberUnitSelectorTextField.inputView = CurrentWeightDecimalNumberUnitSelectorPicker 

// Current Weight Decimal Unit Selector Text Field End 2 // 

// -------------------------------------------------------------------------------------- // 

// Current Fitness Goal Selector Text Field Start 2 // 

    CurrentFitnessGoalSelectorPicker.delegate = self 
    CurrentFitnessGoalSelectorPicker.dataSource = self 
    CurrentFitnessGoalSelectorTextField.inputView = CurrentFitnessGoalSelectorPicker 

// Current Fitness Goal Selector Text Field End 2 // 

// -------------------------------------------------------------------------------------- // 

// Weekly Activity Level Selector Text Field Start 2 // 

    WeeklyActivityLevelSelectorPicker.delegate = self 
    WeeklyActivityLevelSelectorPicker.dataSource = self 
    WeeklyActivityLevelTextField.inputView = WeeklyActivityLevelSelectorPicker 

// Weekly Activity Level Selector Text Field End 2 // 

// -------------------------------------------------------------------------------------- // 

// First Meal Time Text Field Start 2 // 

    FirstMealTimeTextField.delegate = self 

// First Meal Time Text Field End 2 // 

} 

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

// -------------------------------------------------------------------------------------- // 

// Selectors Start 1 // 

func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int { 
    return 1 

} 

func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int { 
    if pickerView == GenderSelectorPicker { 
     output = 1 
    } else if pickerView == HeightWholeNumberUnitSelectorPicker { 
     output = 2 
    } else if pickerView == HeightDecimalNumberUnitSelectorPicker { 
     output = 3 
    } else if pickerView == CurrentWeightWholeNumberUnitSelectorPicker { 
     output = 4 
    } else if pickerView == CurrentWeightDecimalNumberUnitSelectorPicker { 
     output = 5 
    } else if pickerView == CurrentFitnessGoalSelectorPicker { 
     output = 6 
    } else if pickerView == WeeklyActivityLevelSelectorPicker { 
     output = 7 
    } 

    switch output{ 
    case 1: 
     return GenderSelectorData.count 
    case 2: 
     return HeightWholeNumberUnitSelectorData.count 
    case 3: 
     return HeightDecimalNumberUnitSelectorData.count 
    case 4: 
     return CurrentWeightWholeNumberUnitSelectorData.count 
    case 5: 
     return CurrentWeightDecimalNumberUnitSelectorData.count 
    case 6: 
     return CurrentFitnessGoalSelectorData.count 
    case 7: 
     return WeeklyActivityLevelTextFieldData.count 
    default: 
     return 1 
    } 
} 

func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? { 
    if pickerView == GenderSelectorPicker { 
     output2 = 1 
    } else if pickerView == HeightWholeNumberUnitSelectorPicker { 
     output2 = 2 
    } else if pickerView == HeightDecimalNumberUnitSelectorPicker { 
     output2 = 3 
    } else if pickerView == CurrentWeightWholeNumberUnitSelectorPicker { 
     output2 = 4 
    } else if pickerView == CurrentWeightDecimalNumberUnitSelectorPicker { 
     output2 = 5 
    } else if pickerView == CurrentFitnessGoalSelectorPicker { 
     output2 = 6 
    } else if pickerView == WeeklyActivityLevelSelectorPicker { 
     output2 = 7 
    } 

    switch output2{ 
    case 1: 
     return GenderSelectorData[row] 
    case 2: 
     return HeightWholeNumberUnitSelectorData[row] 
    case 3: 
     return HeightDecimalNumberUnitSelectorData[row] 
    case 4: 
     return CurrentWeightWholeNumberUnitSelectorData[row] 
    case 5: 
     return CurrentWeightDecimalNumberUnitSelectorData[row] 
    case 6: 
     return CurrentFitnessGoalSelectorData[row] 
    case 7: 
     return WeeklyActivityLevelTextFieldData[row] 
    default: 
     return "" 
    } 
} 


func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) { 
    if pickerView == GenderSelectorPicker { 
     GenderSelectorTextField.text = GenderSelectorData[row] 
    } else if pickerView == HeightWholeNumberUnitSelectorPicker { 
     HeightWholeNumberUnitSelectorTextField.text = HeightWholeNumberUnitSelectorData[row] 
    } else if pickerView == HeightDecimalNumberUnitSelectorPicker { 
     HeightDecimalNumberUnitSelectorTextField.text = HeightDecimalNumberUnitSelectorData[row] 
    } else if pickerView == CurrentWeightWholeNumberUnitSelectorPicker { 
     CurrentWeightWholeNumberUnitSelectorTextField.text = CurrentWeightWholeNumberUnitSelectorData[row] 
    } else if pickerView == CurrentWeightDecimalNumberUnitSelectorPicker { 
     CurrentWeightDecimalNumberUnitSelectorTextField.text = CurrentWeightDecimalNumberUnitSelectorData[row] 
    } else if pickerView == CurrentFitnessGoalSelectorPicker { 
     CurrentFitnessGoalSelectorTextField.text = CurrentFitnessGoalSelectorData[row] 
    } else if pickerView == WeeklyActivityLevelSelectorPicker { 
     WeeklyActivityLevelTextField.text = WeeklyActivityLevelTextFieldData[row] 
    } 
} 
}

來源

2016-03-05 snoopios

首先 - 創建一個文本框的委託回調文本框沒有任何意義。我看到IBOutlet聲明，所以我假設你正在使用故事板。如果是這樣，那麼你的場景中已經有了所有的textfield實例。剛剛從創建一個出水口的各個文本域控制器，這樣就可以在必要時在代碼中引用它們。

接下來，所有的文本字段將調用相同的委託或目標/行動方法。因此，在這些方法中，您需要找出哪個文本字段正在調用它並特別處理它。

func textFieldDidBeginEditing(textfield: UITextField) { 

    if textField == self.textField1 { 
     //do something to textfield1 
    } 
    else if textfield == textfield2 { 
     //do something to textfield2 
    } 
etc.... 
}

來源

2016-03-05 20:02:15

感謝您的答覆。我應該首先讓你知道，在編碼方面我是一個完全新手（即我以前從來沒有這樣做過，現在我正在從stackoverflow和youtube學習，所以請原諒我缺乏理解。我正在使用故事板來創建這個應用程序，我假設當你說「從每個文本字段創建一個插座」時，我正在用@IBOutlets做什麼？關於「如果」和「其他如果」的陳述，我不知道我應該把它們放在哪裏。我之前用過它們的其他選手，但我正在努力研究如何安排時間選擇。 – snoopios

我有同樣的確切問題，並沿着你做的相同的確切路徑。使用伯爵所給出的解決方案，我能夠解決我的衝突。看看我的代碼，你應該能夠找出你的。我最好給你的建議是不要將字段看作是你所做的兩個獨立的代碼段，而是使用IF語句的一段代碼。

import UIKit 

class AddEventViewController: UIViewController, UITextFieldDelegate { 
    @IBOutlet var eventStartDateTimeText: UITextField! 
    @IBOutlet var eventEndDateTimeText: UITextField! 

    override func viewDidLoad() { 
     super.viewDidLoad() 

     eventStartDateTimeText.delegate = self 
     eventEndDateTimeText.delegate = self 

     // Do any additional setup after loading the view. 
    } 

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

    // MARK: TextField Delegate 

    func datePickerChanged(sender: UIDatePicker) { 
     let formatter = DateFormatter() 

     formatter.dateStyle = .full 
     formatter.timeStyle = .short 
     eventStartDateTimeText.text = formatter.string(from: sender.date) 
    } 

    func datePickerChangedEnd(sender: UIDatePicker) { 
     let formatter = DateFormatter() 

     formatter.dateStyle = .full 
     formatter.timeStyle = .short 
     eventEndDateTimeText.text = formatter.string(from: sender.date) 
    } 


    func textFieldDidBeginEditing(_ textField: UITextField) { 
     if textField == self.eventStartDateTimeText { 
      let datePicker = UIDatePicker() 
      textField.inputView = datePicker 

      datePicker.addTarget(self, action: #selector(datePickerChanged(sender:)), for: .valueChanged) 
     } else if textField == self.eventEndDateTimeText { 
      let datePicker = UIDatePicker() 
      textField.inputView = datePicker 

      datePicker.addTarget(self, action: #selector(datePickerChangedEnd(sender:)), for: .valueChanged) 
     } 
    } 

    func textFieldShouldReturn(_ textField: UITextField) -> Bool { 
     if textField == self.eventStartDateTimeText { 
      eventStartDateTimeText.resignFirstResponder() 
     } else if textField == self.eventEndDateTimeText { 
      eventEndDateTimeText.resignFirstResponder() 
     } 

     return true 
    } 

    // MARK: Helper Methods 

    func closekeyboard() { 
     self.view.endEditing(true) 
    } 

    // MARK: Touch Events 

    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) { 
     closekeyboard() 
    } 

    /* 
    // MARK: - Navigation 

    // In a storyboard-based application, you will often want to do a little preparation before navigation 
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) { 
     // Get the new view controller using segue.destinationViewController. 
     // Pass the selected object to the new view controller. 
    } 
    */ 
}

來源

2016-09-24 03:04:26

一個頁面上的多個UITextFields顯示日期，但只有UITextFields顯示器之一日期從兩個DatePickers

回答

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