The Core iOS Developer’s Cookbook, Fifth Edition

Hints

Assign the accessibilityHint property to set an element’s hint. Hints tell users what to expect from interaction. In particular, they describe any nonobvious results. For example, consider an interface where tapping on a name—for example, John Smith—attempts to call that person by telephone. The name itself offers no information about the interaction outcome, so offer a hint telling the user about it—for example, “Places a phone call to this person,” or, even better, “Places a phone call to John Smith.” Here are tips for building better hints:

Use sentence form. Start with a capital letter and end with a period. Do this even though each ...