How to add UIDatePicker date to UITextField?

Question

I ask users for a date of birth on the registration screen of my application. I cannot figure out how to get the UIDatePicker birth UIDatePicker to display. I tried using the following code, but it only displays the date and time:

  UIDatePicker *dp = [[UIDatePicker alloc]init]; _textBirthday.inputView = dp; 

Also, how would I set it to accept only users born after a certain year?

Answer 1

1) in the .h file of your view controller, make sure you assign a text field delegate:

 @interface YourViewController : UIViewController <UITextFieldDelegate> 

as well as IBOutlet for the birthday text box

2) declare the date selection as a class variable to make it available from all the different methods in the class. in the .m file after import and before implementation, do the following:

 @interface YourViewController () { UIDatePicker *datePicker; } @end 

3) in viewdidload:

 // make the textfield its own delegate self.BirthdateTextfield.delegate = self; // alloc/init your date picker, and (optional) set its initial date datePicker = [[UIDatePicker alloc]init]; [datePicker setDate:[NSDate date]]; //this returns today date // theMinimumDate (which signifies the oldest a person can be) and theMaximumDate (defines the youngest a person can be) are the dates you need to define according to your requirements, declare them: // the date string for the minimum age required (change according to your needs) NSString *maxDateString = @"01-Jan-1996"; // the date formatter used to convert string to date NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; // the specific format to use dateFormatter.dateFormat = @"dd-MMM-yyyy"; // converting string to date NSDate *theMaximumDate = [dateFormatter dateFromString: maxDateString]; // repeat the same logic for theMinimumDate if needed // here you can assign the max and min dates to your datePicker [datePicker setMaximumDate:theMaximumDate]; //the min age restriction [datePicker setMinimumDate:theMinimumDate]; //the max age restriction (if needed, or else dont use this line) // set the mode [datePicker setDatePickerMode:UIDatePickerModeDate]; // update the textfield with the date everytime it changes with selector defined below [datePicker addTarget:self action:@selector(updateTextField:) forControlEvents:UIControlEventValueChanged]; // and finally set the datePicker as the input mode of your textfield [self.BirthdateTextfield setInputView:datePicker]; 

4) in the same .m file, define a selector that will update the text field every time the date selection changes:

 -(void)updateTextField:(id)sender { UIDatePicker *picker = (UIDatePicker*)self.BirthdateTextfield.inputView; self.BirthdateTextfield.text = [self formatDate:picker.date]; } 

5) last but not least: it is a method called before a date is set in textfield.text (textfield.text requires a string, not a date):

 - (NSString *)formatDate:(NSDate *)date { NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateStyle:NSDateFormatterShortStyle]; [dateFormatter setDateFormat:@"dd-MMM-yyyy"]; NSString *formattedDate = [dateFormatter stringFromDate:date]; return formattedDate; } 

enjoy coding!

Answer 2

Use the following code, which you will receive automatically:

 - (void)viewDidLoad { [super viewDidLoad]; UIDatePicker *datePicker = [[UIDatePicker alloc]init]; [datePicker setDate:[NSDate date]]; datePicker.datePickerMode = UIDatePickerModeDate; [datePicker addTarget:self action:@selector(dateTextField:) forControlEvents:UIControlEventValueChanged]; [self.dobTextField setInputView:datePicker]; } -(void) dateTextField:(id)sender{ UIDatePicker *picker = (UIDatePicker*)self.dobTextField.inputView; [picker setMaximumDate:[NSDate date]]; NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init]; NSDate *eventDate = picker.date; [dateFormat setDateFormat:@"dd/MM/yyyy"]; NSString *dateString = [dateFormat stringFromDate:eventDate]; self.dobTextField.text = [NSString stringWithFormat:@"%@",dateString]; } 

Here is the Swift 4 code:

 override func viewDidLoad() { super.viewDidLoad() showDatePicker() } //MARK: Show Date Picker func showDatePicker(){ //Formate Date datePicker.datePickerMode = .date //ToolBar let toolbar = UIToolbar(); toolbar.sizeToFit() //done button & cancel button let doneButton = UIBarButtonItem(title: "Done", style: .plain, target: self, action: #selector(donedatePicker)) let spaceButton = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil) let cancelButton = UIBarButtonItem(title: "Cancel", style: .plain, target: self, action: #selector(cancelDatePicker)) toolbar.setItems([cancelButton,spaceButton,doneButton], animated: false) // add toolbar to textField dateOfBirthTxtFldRef.inputAccessoryView = toolbar // add datepicker to textField dateOfBirthTxtFldRef.inputView = datePicker } @objc func donedatePicker(){ //For date formate let formatter = DateFormatter() formatter.dateFormat = "dd MMMM yyyy" dateOfBirthTxtFldRef.text! = formatter.string(from: datePicker.date) //dismiss date picker dialog self.view.endEditing(true) } @objc func cancelDatePicker(){ //cancel button dismiss datepicker dialog self.view.endEditing(true) } 

Answer 3

Set datePickerMode to UIDatePickerModeDate .

 datePicker.datePickerMode = UIDatePickerModeDate; 

Apple Docs : The date picker lists months, days of the month, and years. The exact order of these elements depends on the locale setting. An example of this mode is [November | 15 | 2007]. Available in iOS 2.0 and later.