windowInsetsStartWidth

fun Modifier.windowInsetsStartWidth(insets: WindowInsets) =
    if (ComposeFoundationLayoutFlags.isWindowInsetsModifierLocalNodeImplementationEnabled)
        this then
            DerivedWidthModifierElement(
                insets,
                debugInspectorInfo {
                    name = "insetsStartWidth"
                    properties["insets"] = insets
                },
                startCalc,
            )
    else
        this.then(
            DerivedWidthModifier(
                insets,
                debugInspectorInfo {
                    name = "insetsStartWidth"
                    properties["insets"] = insets
                },
                startCalc,
            )
        )

Sets the width to that of insets at the start of the screen, using either left or right, depending on the LayoutDirection.

When used, the WindowInsets will respect the consumed insets from windowInsetsPadding and consumeWindowInsets, but won't consume any insets.

Code Examples

insetsStartWidthSample

fun insetsStartWidthSample() {
    class SampleActivity : ComponentActivity() {
        override fun onCreate(savedInstanceState: Bundle?) {
            WindowCompat.setDecorFitsSystemWindows(window, false)
            super.onCreate(savedInstanceState)
            setContent {
                Box(Modifier.fillMaxSize()) {
                    // Background for navigation bar at the start
                    Box(
                        Modifier.windowInsetsStartWidth(WindowInsets.navigationBars)
                            .fillMaxHeight()
                            .align(Alignment.CenterStart)
                            .background(Color.Red)
                    )
                    // app content
                }
            }
        }
    }
}