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@Composable
fun DropdownSample() {
val isExpanded = remember {
mutableStateOf(false)
}
val list = listOf("A", "B", "C", "D", "E", "F", "G")
val disabledValue = "B"
var selectedIndex = remember {
mutableStateOf(0)
}
Box(
modifier = Modifier
.fillMaxSize()
.wrapContentSize(Alignment.TopStart)
) {
Text(
text = list[selectedIndex.value],
modifier = Modifier
.fillMaxWidth()
.height(30.dp)
.padding(10.dp)
.clickable {
isExpanded.value = true
}
.background(
Color.Black
),
color = Color.White
)
DropdownMenu(
expanded = isExpanded.value,
onDismissRequest = { isExpanded.value = false },
modifier = Modifier
.fillMaxWidth()
.background(Color.Red)
) {
list.forEachIndexed { index, s ->
DropdownMenuItem(onClick = {
selectedIndex.value = index
isExpanded.value = false
}
) {
val disaledText = if (disabledValue == s) {
" (Disabled)"
} else {
""
}
Text(text = "${s}${disaledText}")
}
}
}
}
}
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