Can't Call resignFirstResponder from textFieldDidBeginEditing ? (iPhone)

Question

[myTextField becomeFirstResponder];
[myTextField resignFirstResonder];

When I do this -(BOOL)textFieldShouldReturn:(UITextField *)textField , it works. But when I use the same code inside -(void)textFieldDidBeginEditing:(UITextField *)textField , it does not work.

I am certain that it is calling textFieldDidBeginEditing. I have an NSLog inside the method and it is being called.

Why would you want the textField to resign firstResponder status as soon as editing begins? Also, note that the call to `-becomeFirstResponder` is superfluous -- the textField would have to be firstResponder if it got either of these delegate messages. — jlehr, Apr 19 '10 at 00:14
Because I am trying to make a DatePicker appear in place of the keyboard. — Chris, Apr 19 '10 at 00:56
I see the date on this comment is super old, but if anybody is looking for this similar behaviour - just assign the date picker to the text field's .inputView property — Mathieson, May 05 '17 at 03:39

score 7 · Answer 1 · answered Sep 26 '12 at 19:18

This is years back, but needing something identical and this answer being at the top of my search results, I ended up playing and came up with this:

[myTextField performSelector:@selector(resignFirstResponder)
                  withObject:nil
                  afterDelay:0
 ];

score 7 · Accepted Answer · answered Apr 19 '10 at 18:03

Before resigning firstResponder status, the textField makes a callback to its own -canResignFirstResponder method, which returns NO if the textField is currently in an edit session. You can implement -textFieldShouldBeginEditing: delegate method to return NO if you want to prevent the editing session from beginning.

Can't Call resignFirstResponder from textFieldDidBeginEditing ? (iPhone)

2 Answers2