SplitButton

Kotlin

@Composable

fun FilledSplitButtonSample() {
    var checked by rememberSaveable { mutableStateOf(false) }

    SplitButton(
        leadingButton = {
            SplitButtonDefaults.LeadingButton(onClick = { /* Do Nothing */ }) {
                Icon(
                    Icons.Filled.Edit,
                    modifier = Modifier.size(SplitButtonDefaults.LeadingIconSize),
                    contentDescription = "Localized description",
                )
                Spacer(Modifier.size(ButtonDefaults.IconSpacing))
                Text("My Button")
            }
        },
        trailingButton = {
            val description = "Toggle Button"
            // Icon-only trailing button should have a tooltip for a11y.
            TooltipBox(
                positionProvider =
                    TooltipDefaults.rememberTooltipPositionProvider(TooltipAnchorPosition.Above),
                tooltip = {
                    PlainTooltip(
                        modifier =
                            Modifier.semantics {
                                // TODO(b/496338253): Remove this modifier once bug where tooltip
                                //  text is not announced by a11y screen readers is resolved.
                                liveRegion = LiveRegionMode.Assertive
                                paneTitle = description
                            }
                    ) {
                        Text(description)
                    }
                },
                state = rememberTooltipState(),
            ) {
                SplitButtonDefaults.TrailingButton(
                    checked = checked,
                    onCheckedChange = { checked = it },
                    modifier =
                        Modifier.semantics {
                            stateDescription = if (checked) "Expanded" else "Collapsed"
                            contentDescription = description
                        },
                ) {
                    val rotation: Float by
                        animateFloatAsState(
                            targetValue = if (checked) 180f else 0f,
                            label = "Trailing Icon Rotation",
                        )
                    Icon(
                        Icons.Filled.KeyboardArrowDown,
                        modifier =
                            Modifier.size(SplitButtonDefaults.TrailingIconSize).graphicsLayer {
                                this.rotationZ = rotation
                            },
                        contentDescription = "Localized description",
                    )
                }
            }
        },
    )
}