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

It defines the scrolling direction of the pager.

It sets the number of pages displayed simultaneously.

It adjusts the page transition speed.

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

None

How do you determine if a pager is currently scrolling?

Through the onScrollChanged() method.

With the userScrollEnabled property set to false.

By checking the size of the pageContent lambda.

Using the isScrollInProgress property of pagerState.

None

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

alignContent

verticalAlignment

centerAlignment

horizontalAlignment

None

Which of the following is a valid use of pagerState?

Controlling the alignment of items within a Row.

Defining the background color of a Button.

Determining the current page number in a pager.

Adjusting the font size of Text composables.

None

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

scrollToPosition()

snapToPage()

scrollToPage()

animateScrollToPage()

None

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

A drawable resource and an Image composable.

An XML layout file for each book cover.

A RecyclerView with a custom adapter.

An XML vector graphic for each image.

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?

Disables user interactions with the pager.

Displays pages in the opposite direction.

Reverses the order of page numbers.

Inverts the colors of each page.

None

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

It allows paging only in the horizontal direction.

It does not support programmatic scrolling.

It requires an XML layout to function.

It displays content that users can scroll vertically.

None

10.

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

In the XML layout file.

From the onCreate() method of an Activity.

From within a coroutine.

Directly in the Composable function.

None

11.

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

Using the userScrollEnabled property.

By adjusting the state property.

By setting the modifier parameter.

Through the pageContent lambda.

None

12.

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

It sets the size of each page.

It defines the content to be displayed on each page.

It determines the animation speed of page transitions.

It controls the scroll behavior between pages.

None

13.

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

verticalAlignment

horizontalAlignment

gravityAlignment

centerAlignment

None

14.

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

To display lists of data with infinite scrolling.

To enable paging through content using swipe gestures.

To manage asynchronous data loading.

To create complex nested layouts with multiple columns.

None

15.

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

16.

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

Using the columnCount property.

With the columns parameter set to StaggeredGridCells.Fixed.

By setting the horizontalArrangement property.

By defining a fixed width for each page.

None

17.

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

18.

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

By using the size parameter in the VerticalPager or HorizontalPager.

By declaring the number of pages in the pageSize property.

By passing the number of pages to the rememberPagerState function.

By setting the pageCount property directly on the pager.

None

19.

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 helps Compose track page changes efficiently.

It determines the animation style for page transitions.

None

20.

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

rememberCoroutineScope()

launchNewScope()

CoroutineScopeProvider

createCoroutineScope()

None