Lesson 13: App UI design

1. Which tag is used to define themes?

   <style>

   <theme>

   <meta-tag>

   <styling>

2. Which of the following is NOT a good use of styles?

   Unify the font size across views.

   Specify the background color of headings.

   Specify the text color for a group of views.

   Specify the constraints of a view.

3. What is the difference between themes and styles?

   Themes cannot inherit from other themes, but styles can inherit from other styles.

   Themes apply to the entire app, while you can apply styles to specific views.

   Styles cannot inherit from other styles, but themes can inherit from other themes.

   Themes are provided by the Android system, while styles are defined by the developer.

4. Which of the following is true about the floating action button (FAB)?

   The FAB is usually associated with a primary action the user can take on the screen.

   The FAB must be positioned in the bottom-right corner, 16 dp from the edge of the screen.

   The FAB uses a special click handler so that you do not have to write your own ViewModel code.

   The FAB is a mandatory element for apps that implement Material Design principles.

5. Which ViewGroup allows you to stack views on top of each other?

   StackedViewsLayout

   ConstraintLayout

   CoordinatorLayout

   You cannot stack views

6. Which of the following is NOT a good use of styles?

   Choose as many answers as you see fit.

   They are designed to be beautiful, functional, and work together.

   They help you make your app accessible for vision impaired users.

   They help you create an app that uses consistent styling.

   Android Studio will give you a warning if you are using a poor color scheme.

7. What is a theme overlay for? Select all that are true.

   Choose as many answers as you see fit.

   Allows you to apply attributes from a different theme to a view and all its children.

   With a theme overlay, all the styles of that theme are applied automatically.

   You create a theme overlay by defining styles in XML.

   When you apply a theme to a view, you can use that theme attribute for the view and all its children.

8. Which of the following are reasons for defining and using dimensions? Select all that apply.

   Choose as many answers as you see fit.

   Makes it easier to apply the same measurements across the app.

   Allows you to give meaningful semantic names to measurements.

   Makes it easier to change measurements across your app.

   Dimensions are required for using Material Design.

9. Which of the following is mandatory for supporting RTL languages?

   Replace Left and Right in properties with Start and End

   Switch to an RTL language

   Make sure all icons use android:autoMirrored="true"

   Provide content descriptions

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