Compose Pagers Quiz – Answertopia

This quiz focuses on the use of VerticalPager and HorizontalPager composables in Jetpack Compose. These composables enable users to swipe through content horizontally or vertically, making them ideal for displaying multiple items in a paginated format. In this quiz, you will test your understanding of how to configure pagers, manage pager states, navigate programmatically, and utilize various properties to customize the paging behavior. Each question is designed to challenge your knowledge and deepen your understanding of using pagers in a Compose-based Android project.

What does the 'beyondBoundsPageCount' property control?

The total number of pages in the pager.

The height of each page in a VerticalPager.

The scroll speed between pages.

The number of pages loaded outside the visible bounds.

None

What is the primary purpose of the VerticalPager and HorizontalPager composables in Jetpack Compose?

To enable paging through content using swipe gestures.

To create complex nested layouts with multiple columns.

To display lists of data with infinite scrolling.

To manage asynchronous data loading.

None

What is the purpose of the 'pageContent' lambda in the pager composables?

It sets the size of each page.

It determines the animation speed of page transitions.

It defines the content to be displayed on each page.

It controls the scroll behavior between pages.

None

Which of the following statements is true about the VerticalPager composable?

It displays content that users can scroll vertically.

It does not support programmatic scrolling.

It requires an XML layout to function.

It allows paging only in the horizontal direction.

None

Which property is mandatory when using VerticalPager or HorizontalPager composables?

modifier

state

userScrollEnabled

pageSize

None

How do you determine if a pager is currently scrolling?

Using the isScrollInProgress property of pagerState.

Through the onScrollChanged() method.

With the userScrollEnabled property set to false.

By checking the size of the pageContent lambda.

None

Which of the following is required to display a book cover in a HorizontalPager?

An XML layout file for each book cover.

An XML vector graphic for each image.

A drawable resource and an Image composable.

A RecyclerView with a custom adapter.

None

What is the purpose of the modifier parameter in the VerticalPager or HorizontalPager composables?

It sets the number of pages displayed simultaneously.

It is used to modify the appearance and layout of the pager.

It defines the scrolling direction of the pager.

It adjusts the page transition speed.

None

Which of the following is a valid use of pagerState?

Defining the background color of a Button.

Determining the current page number in a pager.

Controlling the alignment of items within a Row.

Adjusting the font size of Text composables.

None

10.

Which alignment is used to center content vertically in a HorizontalPager?

horizontalAlignment

verticalAlignment

centerAlignment

gravityAlignment

None

11.

What is the role of the 'key' parameter in a pager?

It defines the data type used in each page.

It sets the default page size for the pager.

It determines the animation style for page transitions.

It helps Compose track page changes efficiently.

None

12.

When using animateScrollToPage(), from where should it be called?

In the XML layout file.

From within a coroutine.

From the onCreate() method of an Activity.

Directly in the Composable function.

None

13.

Which method is recommended for creating a coroutine scope in Compose?

launchNewScope()

CoroutineScopeProvider

rememberCoroutineScope()

createCoroutineScope()

None

14.

What does the 'reverseLayout' property do in a pager?

Inverts the colors of each page.

Reverses the order of page numbers.

Disables user interactions with the pager.

Displays pages in the opposite direction.

None

15.

How can you enable or disable user scrolling in a pager?

Using the userScrollEnabled property.

By setting the modifier parameter.

Through the pageContent lambda.

By adjusting the state property.

None

16.

What is the function of the 'scrollToPage()' method in pager state?

It scrolls to a specific page instantly without animation.

It adjusts the scroll speed of the pager.

It changes the page size dynamically.

It scrolls to a specific page with animation.

None

17.

What type of alignment is used in a VerticalPager for horizontal content alignment?

horizontalAlignment

verticalAlignment

alignContent

centerAlignment

None

18.

How can you specify the number of pages in a pager?

By using the size parameter in the VerticalPager or HorizontalPager.

By setting the pageCount property directly on the pager.

By passing the number of pages to the rememberPagerState function.

By declaring the number of pages in the pageSize property.

None

19.

How do you define a fixed number of columns in a VerticalPager?

With the columns parameter set to StaggeredGridCells.Fixed.

Using the columnCount property.

By setting the horizontalArrangement property.

By defining a fixed width for each page.

None

20.

What method should be used to navigate to a specific page with an animated transition?

animateScrollToPage()

scrollToPage()

snapToPage()

scrollToPosition()

None