在我的项目中添加了天和月 如何在(日期和时间)UIPickerView 中添加两个字段。 在我的代码中是
class TableViewController: UITableViewController ,UITextFieldDelegate,UIPickerViewDelegate,UIPickerViewDataSource{
@available(iOS 2.0, *)
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
@IBOutlet var dateTextfield:UITextField!
@IBOutlet var dateLabel:UILabel!
var pickerDaysYear = [["1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17","18","19","20","21","22","23","24","25","26","27","28","29","30","31"],["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]];
override func viewDidLoad() {
super.viewDidLoad()
self.pickerview.delegate = self
}
func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {
return 2
}
numberOfRowsInComponent component: Int) -> Int {
return self.pickerDaysYear[component].count
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
if(component == 0)
{
return self.pickerDaysYear[component][row]
}
else
{
return self.pickerDaysYear[component][row]
}
// return pickerDaysYear[component][row]
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
let days = pickerDaysYear[0][pickerView.selectedRow(inComponent: 0)]
let month = pickerDaysYear[1][pickerView.selectedRow(inComponent: 1)]
dateTextfield.text = days + " " + month
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
view.endEditing(false)
}
输出是:
[图片丢失]
我期待这样的输出:
最佳答案
class TableViewController: UITableViewController ,UITextFieldDelegate,UIPickerViewDelegate,UIPickerViewDataSource{
@IBOutlet var dateTextfield:UITextField!
@IBOutlet var dateLabel:UILabel!
let datePicker = UIPickerView()
override func viewDidLoad() {
super.viewDidLoad()
self.dateTextfield.delegate = self
self.datePicker.dataSource = self
self.datePicker.delegate = self
self.dateTextfield.inputView = self.datePicker
let toolBar = UIToolbar()
toolBar.barStyle = UIBarStyle.default
toolBar.isTranslucent = true
toolBar.tintColor = UIColor(red: 76/255, green: 217/255, blue: 100/255, alpha: 1)
toolBar.sizeToFit()
let doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.plain, target: self, action: #selector(self.doneButtonTapped))
toolBar.setItems([doneButton], animated: false)
self.dateTextfield.inputAccessoryView = toolBar
}
func doneButtonTapped(){
self.dateTextfield.resignFirstResponder()
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
view.endEditing(true)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
//---------------- PickerView delegate Method --------------------------------//
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 2
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return self.pickerDaysmonth[component].count
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return self.pickerDaysmonth[component][row]
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
let days = pickerDaysmonth[0][pickerView.selectedRow(inComponent: 0)]
let month = pickerDaysmonth[1][pickerView.selectedRow(inComponent: 1)]
dateTextfield.text = days + " " + month
}
在 UIPickerView() 中为文本字段分配输入 View
let datePicker = UIPickerView()
self.dateTextfield.inputView = self.datePicker
为toolBar中的textfield分配inputAccessoryView
let toolBar = UIToolbar()
self.dateTextfield.inputAccessoryView = toolBar
一切正常
关于ios - "UIPickerView"中的多列,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/44701199/