我一直在搜索论坛,没有任何帮助.
我在一个视图控制器中使用4个文本字段,对于每个文本字段,我使用单独的pickerView作为textFields(4pickers)的inputViews.
我在一个视图控制器中使用4个文本字段,对于每个文本字段,我使用单独的pickerView作为textFields(4pickers)的inputViews.
当我单击第一个textField时,pickerView1成功显示,文本字段显示数据,但是当我单击第二,第三和第四个文本字段时,会出现第一个pickerView.
我怀疑错误在于inputView声明.
如果你能帮助为pickerView添加一个“完成”按钮,我将非常感激.
我的代码:
class ViewController1: UIViewController,UIPickerViewDelegate { @IBOutlet var pickerView1: UIPickerView! @IBOutlet var pickerView2: UIPickerView! @IBOutlet var pickerView3: UIPickerView! @IBOutlet var pickerView4: UIPickerView! @IBOutlet var textField1: UITextField! @IBOutlet var textField2: UITextField! @IBOutlet var textField3: UITextField! @IBOutlet var textField4: UITextField! var hazards = ["a","b","c"] var reasons = ["d","e","f"] var site = ["v","h","i","j"] var line = ["k","l","m","n"] override func viewDidLoad() { super.viewDidLoad() pickerView1 = UIPickerView() pickerView2 = UIPickerView() pickerView3 = UIPickerView() pickerView4 = UIPickerView() pickerView1.delegate = self pickerView2.delegate = self pickerView3.delegate = self pickerView4.delegate = self self.textField1.inputView = self.pickerView1; self.textField2.inputView = self.pickerView2; self.textField3.inputView = self.pickerView3; self.textField4.inputView = self.pickerView4; } func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int { return 1 } func pickerView(pickerView: UIPickerView,numberOfRowsInComponent component: Int) -> Int { if pickerView.tag == 0 { return hazards.count } else if pickerView.tag == 1 { return reasons.count } else if pickerView.tag == 2 { return site.count } else if pickerView.tag == 3 { return line.count } return 1 } func pickerView(pickerView: UIPickerView,titleForRow row: Int,forComponent component: Int) -> String! { if pickerView.tag == 0 { return hazards[row] } else if pickerView.tag == 1 { return reasons[row] } else if pickerView.tag == 2 { return site[row] } else if pickerView.tag == 3 { return line[row] } return "" } func pickerView(pickerView: UIPickerView,didSelectRow row: Int,inComponent component: Int) { if pickerView.tag == 0 { textField1.text = hazards[row] } else if pickerView.tag == 1 { textField2.text = reasons[row] } else if pickerView.tag == 2 { textField3.text = site[row] } else if pickerView.tag == 3 { textField4.text = line[row] } } }