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

It changes the page size dynamically.

It scrolls to a specific page with animation.

It scrolls to a specific page instantly without animation.

It adjusts the scroll speed of the pager.

None

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

It requires an XML layout to function.

It allows paging only in the horizontal direction.

It displays content that users can scroll vertically.

It does not support programmatic scrolling.

None

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

horizontalAlignment

centerAlignment

verticalAlignment

gravityAlignment

None

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

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.

By using the size parameter in the VerticalPager or HorizontalPager.

None

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

It determines the animation style for page transitions.

It helps Compose track page changes efficiently.

It defines the data type used in each page.

It sets the default page size for the pager.

None

What does the 'beyondBoundsPageCount' property control?

The total number of pages in the pager.

The scroll speed between pages.

The height of each page in a VerticalPager.

The number of pages loaded outside the visible bounds.

None

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

From the onCreate() method of an Activity.

In the XML layout file.

Directly in the Composable function.

From within a coroutine.

None

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

It determines the animation speed of page transitions.

It defines the content to be displayed on each page.

It sets the size of each page.

It controls the scroll behavior between pages.

None

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

10.

How do you determine if a pager is currently scrolling?

Through the onScrollChanged() method.

By checking the size of the pageContent lambda.

Using the isScrollInProgress property of pagerState.

With the userScrollEnabled property set to false.

None

11.

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

Disables user interactions with the pager.

Displays pages in the opposite direction.

Inverts the colors of each page.

Reverses the order of page numbers.

None

12.

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

An XML layout file for each book cover.

A drawable resource and an Image composable.

An XML vector graphic for each image.

A RecyclerView with a custom adapter.

None

13.

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

To manage asynchronous data loading.

To create complex nested layouts with multiple columns.

To display lists of data with infinite scrolling.

To enable paging through content using swipe gestures.

None

14.

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

Using the userScrollEnabled property.

Through the pageContent lambda.

By adjusting the state property.

By setting the modifier parameter.

None

15.

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

rememberCoroutineScope()

createCoroutineScope()

launchNewScope()

CoroutineScopeProvider

None

16.

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

17.

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.

Determining the current page number in a pager.

Defining the background color of a Button.

None

18.

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

horizontalAlignment

centerAlignment

alignContent

verticalAlignment

None

19.

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

snapToPage()

scrollToPosition()

animateScrollToPage()

scrollToPage()

None

20.

Which property is mandatory when using VerticalPager or HorizontalPager composables?

modifier

pageSize

state

userScrollEnabled

None