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

To create complex nested layouts with multiple columns.

To display lists of data with infinite scrolling.

To enable paging through content using swipe gestures.

To manage asynchronous data loading.

None

What does the 'beyondBoundsPageCount' property control?

The number of pages loaded outside the visible bounds.

The total number of pages in the pager.

The scroll speed between pages.

The height of each page in a VerticalPager.

None

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

Through the pageContent lambda.

By setting the modifier parameter.

Using the userScrollEnabled property.

By adjusting the state property.

None

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

verticalAlignment

horizontalAlignment

gravityAlignment

centerAlignment

None

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

createCoroutineScope()

launchNewScope()

rememberCoroutineScope()

CoroutineScopeProvider

None

Which property is mandatory when using VerticalPager or HorizontalPager composables?

state

userScrollEnabled

modifier

pageSize

None

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

Displays pages in the opposite direction.

Inverts the colors of each page.

Reverses the order of page numbers.

Disables user interactions with the pager.

None

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

It helps Compose track page changes efficiently.

It determines the animation style for page transitions.

It defines the data type used in each page.

It sets the default page size for the pager.

None

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

centerAlignment

alignContent

verticalAlignment

horizontalAlignment

None

10.

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

With the columns parameter set to StaggeredGridCells.Fixed.

By setting the horizontalArrangement property.

By defining a fixed width for each page.

Using the columnCount property.

None

11.

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

It adjusts the scroll speed of the pager.

It changes the page size dynamically.

It scrolls to a specific page with animation.

It scrolls to a specific page instantly without animation.

None

12.

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

It allows paging only in the horizontal direction.

It requires an XML layout to function.

It does not support programmatic scrolling.

It displays content that users can scroll vertically.

None

13.

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

A drawable resource and an Image composable.

An XML vector graphic for each image.

An XML layout file for each book cover.

A RecyclerView with a custom adapter.

None

14.

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

15.

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

By setting the pageCount property directly on the pager.

By declaring the number of pages in the pageSize property.

By using the size parameter in the VerticalPager or HorizontalPager.

By passing the number of pages to the rememberPagerState function.

None

16.

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

It defines the scrolling direction of the pager.

It adjusts the page transition speed.

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

It sets the number of pages displayed simultaneously.

None

17.

How do you determine if a pager is currently scrolling?

Using the isScrollInProgress property of pagerState.

With the userScrollEnabled property set to false.

By checking the size of the pageContent lambda.

Through the onScrollChanged() method.

None

18.

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

Directly in the Composable function.

From the onCreate() method of an Activity.

From within a coroutine.

In the XML layout file.

None

19.

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

scrollToPosition()

animateScrollToPage()

scrollToPage()

snapToPage()

None

20.

Which of the following is a valid use of pagerState?

Controlling the alignment of items within a Row.

Adjusting the font size of Text composables.

Defining the background color of a Button.

Determining the current page number in a pager.

None