什么时候会调用textFieldDidEndEditing：textField？

Question

I have 2 UITextField in a ViewController. One brings up a UIDatePicker another brings up a KeyBoard(number pad). I then assign user inputs to two class variables, a NSDate variable and a NSNumber variable, in the following method.

-(void)textFieldDidEndEditing:(UITextField *)textField{
    if (textField == self.datePickerTextField){
        //update xxtime
        self.xxTime = self.datePicker.date;
        NSLog(@"...%@",self.xxTime);
    }
     if (textField == self.numberTextField) {
        int val = [textField.text intValue];
        self.xxNumber = [NSNumber numberWithInt:val];
        NSLog(@"...%@",self.xxNumber);
    }

}

If I tap the datePickerTextField first then the numberTextField, this method won't get called after I finish typing in the numberTextField.

So my question is how do I make this method to get called? Should I specify "resignFirstResponder" somewhere?

TIA

Answer 1

It will invoke didEndEditing once another control gains focus

According to the API ,

This method is called after the text field resigns its first responder status.

So if you want didEndEditing to be invoked, you need to call

[textField resignFirstResponder];

Answer 2

Yo are right you need to specify resignFirstResponder

- (BOOL)textFieldShouldReturn:(UITextField *)textField {//Text Field Delegate
    if (textField == textField1) {
        [textField1 becomeFirstResponder];
    }else{
        [textField resignFirstResponder];
    }
    return TRUE; }

this can used with textFieldDidEndEditing also

Answer 3

Please check what iOS you are using. Remember that if you are using iOS 10, there is a method that is replacing the old textFieldDidEndEditing called func textFieldDidEndEditing(_ textField: UITextField, reason: UITextFieldDidEndEditingReason)