iPhone Keyboard Next Button

How do I use the next button (the done button) in the bottom left of the keyboard on the iPh开发者_运维百科one?

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if i understand the question.

Here is solution

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Code snippit from link:

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    if (textField == field1TextField) {
        [textField resignFirstResponder];
        [field2TextField becomeFirstResponder];
    } 
    else if (textField == field2TextField) {
        [textField resignFirstResponder];
        [field3TextField becomeFirstResponder];
    }
    else if (textField == field3TextField) {
        [textField resignFirstResponder];
    }
    return YES;
}