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

It sets the number of pages displayed simultaneously.

It adjusts the page transition speed.

It defines the scrolling direction of the pager.

None

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

animateScrollToPage()

snapToPage()

scrollToPosition()

scrollToPage()

None

What does the 'beyondBoundsPageCount' property control?

The height of each page in a VerticalPager.

The number of pages loaded outside the visible bounds.

The total number of pages in the pager.

The scroll speed between pages.

None

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

To manage asynchronous data loading.

To enable paging through content using swipe gestures.

To display lists of data with infinite scrolling.

To create complex nested layouts with multiple columns.

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

Which property is mandatory when using VerticalPager or HorizontalPager composables?

pageSize

state

userScrollEnabled

modifier

None

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

horizontalAlignment

gravityAlignment

verticalAlignment

centerAlignment

None

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

It determines the animation speed of page transitions.

It sets the size of each page.

It controls the scroll behavior between pages.

It defines the content to be displayed on each page.

None

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

Inverts the colors of each page.

Displays pages in the opposite direction.

Reverses the order of page numbers.

Disables user interactions with the pager.

None

10.

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

It sets the default page size for the 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.

None

11.

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

verticalAlignment

centerAlignment

alignContent

horizontalAlignment

None

12.

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

By setting the modifier parameter.

By adjusting the state property.

Through the pageContent lambda.

Using the userScrollEnabled property.

None

13.

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

rememberCoroutineScope()

CoroutineScopeProvider

createCoroutineScope()

launchNewScope()

None

14.

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

It does not support programmatic scrolling.

It requires an XML layout to function.

It displays content that users can scroll vertically.

It allows paging only in the horizontal direction.

None

15.

How do you determine if a pager is currently scrolling?

By checking the size of the pageContent lambda.

Through the onScrollChanged() method.

Using the isScrollInProgress property of pagerState.

With the userScrollEnabled property set to false.

None

16.

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

A RecyclerView with a custom adapter.

An XML layout file for each book cover.

A drawable resource and an Image composable.

An XML vector graphic for each image.

None

17.

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

By passing the number of pages to the rememberPagerState function.

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.

None

18.

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

In the XML layout file.

From within a coroutine.

Directly in the Composable function.

From the onCreate() method of an Activity.

None

19.

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

By defining a fixed width for each page.

By setting the horizontalArrangement property.

With the columns parameter set to StaggeredGridCells.Fixed.

Using the columnCount property.

None

20.

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

It changes the page size dynamically.

It scrolls to a specific page instantly without animation.

It scrolls to a specific page with animation.

It adjusts the scroll speed of the pager.

None