PagerLayoutInfo

sealed interface PagerLayoutInfo

Contains useful information about the currently displayed layout state of a Pager. This information is available after the first measure pass.

Use PagerState.layoutInfo to retrieve this

Properties

val visiblePagesInfo: List<PageInfo>

A list of all pages that are currently visible in the Pager

val pageSize: Int

The main axis size of the Pages in this Pager provided by the PageSize API in the Pager definition. This is provided in pixels.

val pageSpacing: Int

The spacing in pixels provided in the Pager creation.

val viewportStartOffset: Int

The start offset of the layout's viewport in pixels. You can think of it as a minimum offset which would be visible. Usually it is 0, but it can be negative if non-zero beforeContentPadding was applied as the content displayed in the content padding area is still visible.

You can use it to understand what items from visiblePagesInfo are fully visible.

val viewportEndOffset: Int

The end offset of the layout's viewport in pixels. You can think of it as a maximum offset which would be visible. It is the size of the lazy list layout minus beforeContentPadding.

You can use it to understand what items from visiblePagesInfo are fully visible.

val beforeContentPadding: Int

The content padding in pixels applied before the first page in the direction of scrolling. For example it is a top content padding for VerticalPager with reverseLayout set to false.

val afterContentPadding: Int

The content padding in pixels applied after the last page in the direction of scrolling. For example it is a bottom content padding for VerticalPager with reverseLayout set to false.

val viewportSize: IntSize

The size of the viewport in pixels. It is the Pager layout size including all the content paddings.

val orientation: Orientation

The Pager orientation.

val reverseLayout: Boolean

True if the direction of scrolling and layout is reversed.

val beyondViewportPageCount: Int

Pages to compose and layout before and after the list of visible pages. This will be coerced between 0 and the page count. This does not include the pages automatically composed and laid out by the pre-fetcher in the direction of the scroll during scroll events.

val snapPosition: SnapPosition

The calculation of how this Pager performs snapping of pages.