Ios 如何在一个页面中实现多个UIPickerView?
我正在文本字段中实现Ios 如何在一个页面中实现多个UIPickerView?,ios,swift,uipickerview,Ios,Swift,Uipickerview,我正在文本字段中实现UIPickerView,如下所示: public func numberOfComponents(in pickerView: UIPickerView) -> Int{ return 1 } public func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int { return states.count // stat
UIPickerView
,如下所示:
public func numberOfComponents(in pickerView: UIPickerView) -> Int{
return 1
}
public func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return states.count // states is an array of strings
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return states[row]
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
textField.text = states[row]
self.view.endEditing(false)
}
我想要另一个实现
UIPickerView
的文本字段。我该怎么做?我可以更改上面实现的方法以包含两个文本字段吗?您可以轻松地为每个pickerView设置一个标记值,例如:
let firstPV = UIPickerView()
pickerV.tag = 1
let secondPV = UIPickerView()
secondPV.tag = 2
这样,您只需评估PickerView协议中的标记属性,如:
func numberOfComponents(in pickerView: UIPickerView) -> Int {
switch pickerView.tag {
case 1:
return 1
case 2:
return 3
default:
return 0
}
}