LayoutAnimation in React Native - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is LayoutAnimation in React Native?

LayoutAnimation is a React Native API that allows you to animate layout changes smoothly, like when views change size or position.

beginner

How do you trigger a LayoutAnimation in React Native?

You call LayoutAnimation.configureNext() before the state change that causes the layout update.

beginner

Name one built-in animation preset in LayoutAnimation.

Examples include LayoutAnimation.Presets.easeInEaseOut, spring, and linear.

intermediate

Why do you need to enable LayoutAnimation on Android explicitly?

Because on Android, you must enable it with UIManager.setLayoutAnimationEnabledExperimental(true) for it to work.

beginner

What kind of UI changes can LayoutAnimation animate?

It animates layout changes like view size, position, and adding or removing views.

Which method triggers a layout animation in React Native?

A LayoutAnimation.configureNext()

B Animated.timing()

C setTimeout()

D useEffect()

LayoutAnimation.configureNext() tells React Native to animate the next layout change.

What must you do on Android to use LayoutAnimation?

A Nothing special, it works by default

B Import Animated from react-native

C Use a third-party library

D Call UIManager.setLayoutAnimationEnabledExperimental(true)

On Android, you must enable LayoutAnimation explicitly with UIManager.setLayoutAnimationEnabledExperimental(true).

Which of these is NOT a LayoutAnimation preset?

A linear

B spring

C bounce

D easeInEaseOut

bounce is not a built-in LayoutAnimation preset.

When should you call LayoutAnimation.configureNext()?

A Before the layout change

B After the layout change

C Only on app start

D Only on Android

You call it before the state change that triggers the layout update.

What does LayoutAnimation animate?

A Only color changes

B Layout changes like size and position

C Text changes

D Network requests

LayoutAnimation animates changes in layout such as size and position.

Explain how to use LayoutAnimation to animate a view resizing in React Native.

Think about when and how to call the animation before changing the view size.

Describe why LayoutAnimation is useful for improving user experience in mobile apps.

Consider how animations help users understand changes on screen.