iOS app “next” key won't go to the next text field

Question

I have a simple scene (using storyboard in IB) with a Username and Password text box. I\'ve set the keyboard to close when you are on the Password text field but can\'t get

Answer 1

I got an issue that password textfield get focus and then lose focus immediately. At last I found that we'd better return NO in function textFieldShouldReturn:. If we return YES, the text field will get a insertText: call. Then it will lose focus. Don't know the reason.

I have created a new question for this issue: UITextField get focus and then lose focus immediately due to return YES in textFieldShouldReturn

If anyone knows the reason, please let me know. Thanks.

- (BOOL)textFieldShouldReturn:(UITextField *)theTextField {
    if (theTextField == self.textPassword) {
        [theTextField resignFirstResponder];
    } else if (theTextField == self.textUsername) {
        [self.textPassword becomeFirstResponder];
    }
    // we'd better return NO here
    return NO;
}