<div class='type'>Compose Modifier</div>

<a id='references'></a>


<h2 id="fillmaxsize-fraction">fillMaxSize</h2>

<div class='sourceset sourceset-common'>Common</div>


```kotlin
fun Modifier.fillMaxSize(@FloatRange(from = 0.0, to = 1.0) fraction: Float = 1f) =
    this.then(if (fraction == 1f) FillWholeMaxSize else FillElement.size(fraction))
```


Have the content fill (possibly only partially) the `Constraints.maxWidth` and
`Constraints.maxHeight` of the incoming measurement constraints, by setting the
`minimum width` and the `maximum width` to be equal
to the `maximum width` multiplied by `fraction`, as well as the
`minimum height` and the `maximum height` to be
equal to the `maximum height` multiplied by `fraction`. Note that, by
default, the `fraction` is 1, so the modifier will make the content fill the whole available
space. If the incoming maximum width or height is `Constraints.Infinity` this modifier will have
no effect in that dimension.

#### Parameters

| | |
| --- | --- |
| fraction | The fraction of the maximum size to use, between `0` and `1`, inclusive. |