Change the date format of date picker - ios

Question

I would like to change the format of like the image attached
from YYYY/MM/DD to dd/MMM hh:min a but unfortunately i cannot do that
Here is my work in view controller 3
#import "ViewController3.h"
#interface ViewController3 ()
#end
#implementation ViewController3
#synthesize text;
- (void)viewDidLoad {
[super viewDidLoad];
datePicker=[[UIDatePicker alloc]init];
datePicker.datePickerMode=UIDatePickerModeDate;
[self.text setInputView:datePicker];
UIToolbar *toolBar=[[UIToolbar alloc]initWithFrame:CGRectMake(0, 0, 320, 44)];
[toolBar setTintColor:[UIColor grayColor]];
UIBarButtonItem *doneBtn=[[UIBarButtonItem alloc]initWithTitle:#"Done" style:UIBarButtonItemStyleBordered target:self action:#selector(ShowSelectedDate)];
UIBarButtonItem *space=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
[toolBar setItems:[NSArray arrayWithObjects:space,doneBtn, nil]];
[self.text setInputAccessoryView:toolBar];
}
-(void)ShowSelectedDate
{ NSDateFormatter *formatter=[[NSDateFormatter alloc]init];
[formatter setDateFormat:#"dd/MMM hh:min a"];
self.text.text=[NSString stringWithFormat:#"%#",[formatter stringFromDate:datePicker.date]];
[self.text resignFirstResponder];
}
#end
Do you have any other idea?

Answer 1

You'll want to set up your date formatter in the original date format, and then convert the result to the new date format.
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:#"YYYY/MM/DD"];
NSString *originalDateString = [dateFormatter stringFromDate:datePicker.date];
[dateFormatter setDateFormat:#"dd/MMM hh:mm a"];
NSDate *newDate = [dateFormatter dateFromString:origianalDateString];
self.text.text = [NSString stringWithFormat:#"%#", [dateFormatter stringFromDate:newDate]];