Question

I have set up some text fields and labels to look like a simple form which will have to get some user input. My problem is however that whenever some of the text fields are selected and the keyboard slides out, the text fields are covered making it impossible to see the input. My question is how can I move up the text fields so that they stay in view when selected. Maybe someone who is more experienced can help me on this.

Answer 1

A good solution for this which I like to do is listen to when the textfield begins editing with the following delegate function:

- (void)textFieldDidBeginEditing:(UITextField *)textField
{
    //keep a member variable to store where the textField started
    _yPositionStore = textField.frame.origin.y;

    //If we begin editing on the text field we need to move it up to make sure we can still
    //see it when the keyboard is visible.
    //
    //I am adding an animation to make this look better
    [UIView beginAnimations:@"Animate Text Field Up" context:nil];
    [UIView setAnimationDuration:.3];
    [UIView setAnimationBeginsFromCurrentState:YES];

    commentTextField.frame = CGRectMake(commentTextField.frame.origin.x,
                        160 , //this is just a number to put it above the keyboard
                        commentTextField.frame.size.width,
                        commentTextField.frame.size.height);

    [UIView commitAnimations];
}

and then in this callback you can return it to its original location:

- (void)textFieldDidEndEditing:(UITextField *)textField
{

    [UIView beginAnimations:@"Animate Text Field Up" context:nil];
    [UIView setAnimationDuration:.3];
    [UIView setAnimationBeginsFromCurrentState:YES];

    commentTextField.frame = CGRectMake(commentTextField.frame.origin.x,
                        _yPositionStore ,
                        commentTextField.frame.size.width,
                        commentTextField.frame.size.height);

    [UIView commitAnimations];
}

}

You will need to declare _yPositionStore as a member variable of CGFloat and have your textFields delegate be set to the view controller that owns it(either using Interface builder and dragging delegate to files owner or setting yourTextField.delegate = self)

I hope that helps