Mobile App Design Mobile App Design 2

Question 1

Which gesture is most commonly used in iOS apps to navigate back to the previous screen?

Accepted Answer

Swipe right from the left edge

Answer

iOS uses an edge swipe-right gesture to navigate back, consistent with its navigation paradigm.

Question 2

What is the recommended minimum tap target size according to Apple's Human Interface Guidelines?

Accepted Answer

44x44 points

Answer

Apple recommends a minimum tap target of 44x44 points to ensure reliable touch interaction.

Question 3

In mobile UX, what does 'progressive disclosure' mean?

Accepted Answer

Revealing information or features only as the user needs them

Answer

Progressive disclosure reduces cognitive load by surfacing advanced options only when relevant to the user's current task.

Question 4

Which color contrast ratio does WCAG 2.1 AA require for normal body text on mobile?

Accepted Answer

4.5:1

Answer

WCAG 2.1 AA requires a minimum contrast ratio of 4.5:1 for normal text to ensure readability for users with low vision.

Question 5

What is the primary purpose of a 'skeleton screen' in mobile app design?

Accepted Answer

To show a placeholder layout while real content is loading

Answer

Skeleton screens give users a visual preview of the incoming layout, reducing perceived wait time during content loading.

Mobile App Design Practice Test