UITextField settext not working

Question

This is frustrating the hell out of me. I am a beginner programmer and cannot figure out why the text is not being changed.

Here is my method which is supposed to set the text of a UITextField:

-(void)updateDays:(NSInteger)days
{
    NSString* daysString = [[NSString alloc] initWithFormat:@"%d", days];
    [daysTextField setText:daysString];
    [daysString release];
}

For whatever reason nothing is happening.

Help appreaciated!

Answer 1

Anytime you have a frustration along the lines of "why isn't this line working", use the debugger or just add an NSLog before it to print out the relevant data:

NSLog(@"updateDays: %@ %@ <= %@", daysTextField, daysTextField.text, daysString);

Then you know the line (a) is getting executed, (b) the variables are the ones you think they are, and (c) the values are reasonable.

Answer 2

I have experienced this several times, but I think all of them was reasoned by that the UITextField was not initialized at that point.

Set a breakpoint and use debugger to make sure that your UITextField is not nil. You should also check the connection between the .xib file and your code.