Build beautiful apps | Android Developers

Animations in your Android app can:

Add visual cues about what's going on in your app.

Add a polished look to your app.

Help the user see what changed.

All of the above.

Spring animation is based on:

Start and end values over the specified duration.

Damping ratio and stiffness.

Snapshot values specified at different timestamps.

Interpolation between two keyframe values.

Spring animation is a physics-based animation driven by spring force.

True

False

In the Material theming, the ___ color is the color displayed most frequently across your app's screens and components.

primary

secondary

surface

background

The following file is used to define shapes of components in Compose.

Theme.kt

Color.kt

Shape.kt

Colors.kt

You can only have one @Preview composable

True

False

A hex color code starts with a pound (#) character, and is followed by six letters and/or numbers that represent the red, green, and blue (RGB) components of that color.

True

False

The ___ file is the file that holds all the information about the theme of the app which is defined through color, shape, and typography.

Theme.kt

Color.kt

Shape.kt

Colors.kt

___ creates contrast between the Card and the background by adding a shadow to make the app look more realistic and visually interesting?

Elevation

Shape

Color

Theme

What are reasons that someone may use Dark Theme on their device?

It can reduce power usage by a significant amount (depending on the device’s screen technology).

It improves visibility for users with low vision and those who are sensitive to bright light.

It makes it easier for anyone to use a device in a low-light environment.

All of the above.

TalkBack allows a user to navigate an app using switches instead of the touchscreen.

True

False

Which attribute allows TalkBack to speak a meaningful representation of an image or icon?

elevation

shape

contentDescription

style