When emerging values, finger block view. Suggest change
While not ideal, because of the iPhone’s small screen size this was the only viable trade off for having a UI that is quick and responsive while changing multiple related values. The alternative was to create UI that was spread across multiple popup screens or to have longer scrolling screens, which would have hidden the vital information from being viewed all at once.
One thing to check is to make sure you have the speaker volume turned up on your device as these UI controls give an audible feedback when tapped. This should help you in knowing what the values are even if you can’t fully see them while changing them.