Question

For a UIViewController, in case its view is unloaded, I want to save (to an NSString ivar) the text string that a user has entered into a UITextView (or UITextField).

Where should I do this?

I’m assuming the UITextView will already have been reset to nil in viewDidUnload, correct?

So, I want to do something like this:

- (void)viewWillUnload {
    UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:
                             [NSIndexPath indexPathForRow:2 inSection:0]];
    UITextView *textView = (UITextView *)[cell viewWithTag:TEXT_VIEW_TAG];
    self.stringIvar = textView.text;
    [super viewWillUnload];
}

But what’s the viewWillUnload method? Is it didReceiveMemoryWarning?

Answer 1

Your assumptions are correct. Use didReceiveMemoryWarning.