Can't Call resignFirstResponder from textFieldDidBeginEditing ? (iPhone)

[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开发者_开发问答 an NSLog inside the method and it is being called.

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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.

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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
 ];