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我試圖使用標籤中的文本填充選擇器視圖。 我已經嘗試過在網上搜索和在書中如何做到這一點,但沒有運氣。 什麼我迄今未顯示任何錯誤,但仍然會無法運行隨機選擇器使用選擇器視圖與swift
感謝
進口的UIKit
類的ViewController:UIViewController中,UIPickerViewDelegate,UIPickerViewDataSource,UITextFieldDelegate {
@IBOutlet weak var label3: UILabel!
@IBOutlet weak var label2: UILabel!
@IBOutlet weak var label: UILabel!
@IBOutlet weak var textField: UITextField!
@IBOutlet weak var textField2: UITextField!
@IBOutlet weak var textField3: UITextField!
@IBAction func button(sender: UIButton) {
label.text = textField.text
label2.text = textField2.text
label3.text = textField3.text
self.textField.resignFirstResponder()
self.textField2.resignFirstResponder()
self.textField3.resignFirstResponder()
}
func textFieldShouldReturn(textField: UITextField) -> Bool {
textField.resignFirstResponder()
return false
}
override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
self.view.endEditing(true)
}
var pickerLabels: [UILabel!] {
return [label,label2,label3]
}
func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int{
return 1
}
func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component:Int) -> Int{
return pickerLabels.count
}
func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> NSArray{
return pickerLabels
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
編輯你的問題,:更改文字的壁分離具有合理標點和語法的段落。顯示你到目前爲止的代碼。不需要笑臉。請注意,使用帶有選取器視圖但不需要的數組是很常見的。但想象一下:如果按下按鈕用文本字段中的文本更新數組,然後告訴picker視圖重新加載,該怎麼辦? – Anna 2015-02-07 13:09:15