I am trying to display my UIPickerView in a TextField, I have done it so it displays one of the rows but not all of them.
Here is my code:
class ViewController: UIViewController {
static var isAlreadyLaunchedOnce = false
var ref: DatabaseReference!
@IBOutlet weak var txtDate: UITextField!
@IBOutlet weak var inputpickerdate: UIPickerView!
var pickerDate: [[String]] = [[String]] ()
var selected: String?
override func viewDidLoad() {
super.viewDidLoad()
self.inputpickerdate.delegate = self
self.inputpickerdate.dataSource = self
pickerDate = [["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"], ["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", "Sept", "Oct", "Nov", "Dec"]]
if FirebaseApp.app() == nil {
FirebaseApp.configure()
}
}
extension ViewController: UIPickerViewDelegate, UIPickerViewDataSource {
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 3
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
//return pickerList.count
return pickerDate [component].count
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return pickerDate [component] [row]
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
txtDate.text = pickerDate[component][row]
self.view.endEditing(false)
}
}
In the textview I only see the month not the full date, I want to show something like:
mon day year
Not sure how to do this, basically needs to show all rows not just one.
The reason is that you are are setting the text in your UITextField only to the text of the component you are selecting pickerDate[component][row].
There are multiple ways you could achieve what you want to do with a UIPicker, albeit quite convoluted...
e.g.
A much better way to pick dates would be to use a UIDatePicker instead.
class ViewController: UIViewController {
@IBOutlet weak var txtDate: UITextField!
@IBOutlet weak var datepicker: UIDatePicker!
let dateFormatter = DateFormatter()
override func viewDidLoad() {
super.viewDidLoad()
dateFormatter.dateStyle = .medium
datepicker.addTarget(self, action: #selector(dateChanged(_:)), for: .valueChanged)
}
@objc func dateChanged(_ sender: UIDatePicker) {
txtDate.text = dateFormatter.string(from: sender.date)
}
}
If you do want to go down the route of using a UIPickerView you could persist the value of each component and use those values to build up the string you want to display.
class ViewController: UIViewController {
@IBOutlet weak var txtDate: UILabel!
@IBOutlet weak var picker: UIPickerView!
let pickerData: [[String]] = [
["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"],
["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", "Sept", "Oct", "Nov", "Dec"]
]
var weekDay: String = ""
var dayOfMonth: String = ""
var month: String = ""
override func viewDidLoad() {
super.viewDidLoad()
self.picker.delegate = self
self.picker.dataSource = self
// Give the label a default value
weekDay = pickerData[0][0]
dayOfMonth = pickerData[1][0]
month = pickerData[2][0]
updateDateText()
}
func updateDateText() {
txtDate.text = "\(weekDay) \(dayOfMonth) \(month)"
}
}
extension ViewController: UIPickerViewDataSource {
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return pickerData.count
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return pickerData [component].count
}
}
extension ViewController: UIPickerViewDelegate {
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return pickerData[component][row]
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
switch component {
case 0:
weekDay = pickerData[component][row]
case 1:
dayOfMonth = pickerData[component][row]
case 2:
month = pickerData[component][row]
default:
break
}
updateDateText()
}
}