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.

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

Directly in the Composable function.

In the XML layout file.

From within a coroutine.

From the onCreate() method of an Activity.

None

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

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

centerAlignment

verticalAlignment

horizontalAlignment

alignContent

None

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

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.

It defines the scrolling direction of the pager.

None

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

It scrolls to a specific page with animation.

It adjusts the scroll speed of the pager.

It changes the page size dynamically.

It scrolls to a specific page instantly without animation.

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 does the 'reverseLayout' property do in a pager?

Inverts the colors of each page.

Disables user interactions with the pager.

Displays pages in the opposite direction.

Reverses the order of page numbers.

None

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

CoroutineScopeProvider

launchNewScope()

rememberCoroutineScope()

createCoroutineScope()

None

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

By setting the pageCount property directly on the pager.

By using the size parameter in the VerticalPager or HorizontalPager.

By passing the number of pages to the rememberPagerState function.

By declaring the number of pages in the pageSize property.

None

10.

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 allows paging only in the horizontal direction.

It displays content that users can scroll vertically.

None

11.

How do you determine if a pager is currently scrolling?

With the userScrollEnabled property set to false.

Using the isScrollInProgress property of pagerState.

By checking the size of the pageContent lambda.

Through the onScrollChanged() method.

None

12.

What does the 'beyondBoundsPageCount' property control?

The total number of pages in the pager.

The scroll speed between pages.

The number of pages loaded outside the visible bounds.

The height of each page in a VerticalPager.

None

13.

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

verticalAlignment

gravityAlignment

centerAlignment

horizontalAlignment

None

14.

Which property is mandatory when using VerticalPager or HorizontalPager composables?

userScrollEnabled

state

pageSize

modifier

None

15.

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

scrollToPosition()

animateScrollToPage()

snapToPage()

scrollToPage()

None

16.

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

By setting the modifier parameter.

Using the userScrollEnabled property.

By adjusting the state property.

Through the pageContent lambda.

None

17.

Which of the following is a valid use of pagerState?

Defining the background color of a Button.

Controlling the alignment of items within a Row.

Adjusting the font size of Text composables.

Determining the current page number in a pager.

None

18.

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

It defines the content to be displayed on each page.

It sets the size of each page.

It determines the animation speed of page transitions.

It controls the scroll behavior between pages.

None

19.

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

A RecyclerView with a custom adapter.

A drawable resource and an Image composable.

An XML layout file for each book cover.

An XML vector graphic for each image.

None

20.

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