Question

I’m trying to add a new cell to a tableview, and pop up an alert with a UITextField to allow the user to input the title they wish to give the new cell. I have code to pop up an alert with a UITextField when the “+” button is pressed, and the code to add a new cell, however I don’t know how to get the text from the UITextField to insert it into the cell’s title.

This is my code to pop up the alert:

UIAlertView* alertPopUp = [[UIAlertView alloc] init];
 [alertPopUp setDelegate:self];
 [alertPopUp setTitle:@"Enter event title"];
 [alertPopUp setMessage:@" "];
 [alertPopUp addButtonWithTitle:@"Cancel"];
 [alertPopUp addButtonWithTitle:@"OK"];

 UITextField * eventNameField = [[UITextField alloc] initWithFrame:CGRectMake(20.0, 45.0, 245.0, 25.0)];
 [eventNameField setBackgroundColor:[UIColor whiteColor]];
 [alertPopUp addSubview:eventNameField];
 [alertPopUp show];

and my alertView action is:

    - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
 NSString *buttonTitle=[alertView buttonTitleAtIndex:buttonIndex];
 if([buttonTitle isEqualToString:@"Cancel"]) {
  return;
 }
 else if([buttonTitle isEqualToString:@"Ok"]) {

 }

}

What can I do to get the text from eventNameField when “Ok” is pressed and add it to a mutablearray named eventList? Thanks!

Answer 1

Set the tag on eventNameField to something meaningful

eventNameField.tag = 1001;

Then inside of the alertViewDelegate you can get the TextField by using – [UIView viewWithTag:]

UITextField* textField = (UITextField*)[alertView viewWithTag:1001];