I currently display a Bottom Sheet through a BottomSheetScaffold
and want to collapse it when the user clicks outside the Bottom Sheet. Is there a way to detect the click outside of the Bottom Sheet?
This is the screen with my BottomSheetScaffold
:
@ExperimentalMaterialApi
@ExperimentalMaterial3Api
@Composable
fun HomeScreen() {
val bottomSheetScaffoldState = rememberBottomSheetScaffoldState(
bottomSheetState = BottomSheetState(BottomSheetValue.Collapsed)
)
val coroutineScope = rememberCoroutineScope()
BottomSheetScaffold(
scaffoldState = bottomSheetScaffoldState,
sheetContent = {
Box(
Modifier
.fillMaxWidth()
.fillMaxHeight(0.9f)
) {
Text("Hello from Sheet")
}
},
sheetShape = RoundedCornerShape(
topStart = Spacing.l,
topEnd = Spacing.l
),
sheetPeekHeight = LocalConfiguration.current.screenHeightDp.dp * 0.15f,
sheetBackgroundColor = MaterialTheme.colorScheme.surface,
) {
Scaffold() {
Button(
onClick = {
coroutineScope.launch {
if (bottomSheetScaffoldState.bottomSheetState.isCollapsed) {
bottomSheetScaffoldState.bottomSheetState.expand()
} else {
bottomSheetScaffoldState.bottomSheetState.collapse()
}
}
},
) {
Text("Toggle Sheet")
}
}
}
}
This is a visualization of the area in which I want to detect the click if the Bottom Sheet is expanded.
You can add the pointerInput
modifier with detectTapGestures
to your Scaffold
:
Scaffold( modifier =
Modifier.pointerInput(Unit) {
detectTapGestures(onTap = {
coroutineScope.launch {
if (bottomSheetScaffoldState.bottomSheetState.isCollapsed) {
bottomSheetScaffoldState.bottomSheetState.expand()
} else {
bottomSheetScaffoldState.bottomSheetState.collapse()
}
}
})
}){
//.....
}