Defines the size of a track (a row or a column) in a Grid.

Use the companion functions (e.g., Fixed, Flex) to create instances.

Summary

Public companion functions
GridTrackSize
Fixed(size: Dp)

A track with a fixed Dp size.
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GridTrackSize
Flex(weight: @FloatRange(from = 0.0) Fr)

A flexible track that takes a share of the remaining space after Fixed and Percentage tracks are allocated.
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GridTrackSize
Percentage(value: @FloatRange(from = 0.0) Float)

A track sized as a percentage of the total available size of the grid container.
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Public companion properties
GridTrackSize

A track that behaves automatically, typically similar to MinContent or Flex depending on context.
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GridTrackSize

A track that sizes itself to fit the maximum intrinsic size of its contents.
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GridTrackSize

A track that sizes itself to fit the minimum intrinsic size of its contents.
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Public functions
open String
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Public companion functions

Fixed

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fun Fixed(size: Dp): GridTrackSize

A track with a fixed Dp size.

Parameters
size: Dp

The size of the track.
Throws
kotlin.IllegalArgumentException

if size is negative or Dp.Unspecified.

Flex

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fun Flex(weight: @FloatRange(from = 0.0) Fr): GridTrackSize

A flexible track that takes a share of the remaining space after Fixed and Percentage tracks are allocated.

Parameters
weight: @FloatRange(from = 0.0) Fr

The flexible weight. Space is distributed proportional to this weight divided by the total flex weight. Must be non-negative.
Throws
kotlin.IllegalArgumentException

if weight is negative.

Percentage

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fun Percentage(value: @FloatRange(from = 0.0) Float): GridTrackSize

A track sized as a percentage of the total available size of the grid container. Note: In this implementation, percentages are calculated based on the remaining available space after gaps. This differs from the W3C CSS Grid spec, where percentages are based on the container size regardless of gaps. This behavior prevents unexpected overflows when mixing gaps and percentages (e.g., 50% + 50% + gap will fit perfectly here, but would overflow in CSS).

Parameters
value: @FloatRange(from = 0.0) Float

The percentage of the container size.
Throws
kotlin.IllegalArgumentException

if value is negative.

Public companion properties

Auto

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val Auto: GridTrackSize

A track that behaves automatically, typically similar to MinContent or Flex depending on context.

MaxContent

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val MaxContent: GridTrackSize

A track that sizes itself to fit the maximum intrinsic size of its contents.

MinContent

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val MinContent: GridTrackSize

A track that sizes itself to fit the minimum intrinsic size of its contents.

Public functions

toString

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open fun toString(): String