我有一个简单的滑块,我需要禁用按钮在星星和当用户移动滑块,它应该是启用,我可以禁用它在第一次,但我不能启用它回来,由于某种原因,它没有采取新的变量值这是我的代码.我的想法是因为变量是在第一次声明和滑块值是封装不知何故?但如果是这种情况下,我如何将值传递给组件?
@OptIn(ExperimentalComposeUiApi::class)
@Composable
fun PopupWindowDialogStudent(
onConfirm: (Int, String) -> Unit,
parentUiState: StudentHomeUiState,
) {
// val openDialog = remember { mutableStateOf(parentUiState.showInAppFeedback) }
val openDialog = remember { mutableStateOf(!parentUiState.showInAppFeedback) }
var sliderPosition by remember { mutableStateOf(5f) }
var enable by remember { mutableStateOf(false) }
val recommend = sliderPosition.toInt()
Column(
) {
Box {
if (openDialog.value) {
Dialog(
onDismissRequest = { openDialog.value = false },
properties = DialogProperties(),
)
{
Box(
Modifier
.fillMaxWidth()
.height(500.dp)
.background(Color.White, RoundedCornerShape(10.dp))
.border(1.dp, color = Color.White, RoundedCornerShape(20.dp))
) {
Column(
modifier = Modifier
.fillMaxSize()
.fillMaxHeight()
.padding(horizontal = 5.dp)
.verticalScroll(rememberScrollState())
,
horizontalAlignment = Alignment.CenterHorizontally,
verticalArrangement = Arrangement.Center
) {
Column(horizontalAlignment = Alignment.CenterHorizontally,
verticalArrangement = Arrangement.Center) {
Row(
verticalAlignment = Alignment.CenterVertically,
horizontalArrangement = Arrangement.Center,
modifier = Modifier
.fillMaxWidth()
.padding(vertical = 10.dp)) {
var completeValue by remember { mutableStateOf("") }
completeValue = sliderPosition.toString()
Column(horizontalAlignment = Alignment.CenterHorizontally){
Slider(
value = sliderPosition,
onValueChange = {
sliderPosition = it
var enable = true
},
valueRange = 0f..10f,
steps = 9,
onValueChangeFinished = {
completeValue
},
modifier = Modifier.width(180.dp),
colors = SliderDefaults.colors(
thumbColor = secondaryColor,
activeTrackColor = Color.Blue
)
)
}
}
Spacer(modifier = Modifier.height(10.dp))
var comment by remember { mutableStateOf("") }
val keyboardController = LocalSoftwareKeyboardController.current
TextField(
value = comment,
placeholder = { Text(text = "¿Tienes algún otro comentario?") },
keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),
keyboardActions = KeyboardActions(
onDone = {keyboardController?.hide()}),
onValueChange = {
comment = it
}
)
Spacer(modifier = Modifier.height(10.dp))
if (enable){
Button(
modifier = Modifier
.fillMaxWidth()
.padding(10.dp),
onClick = {
onConfirm(recommend,comment)
openDialog.value = !openDialog.value
}
) {
Text(
text = "¡Contesta y gana +20 puntos!",
style = MaterialTheme.typography.subtitle2,
fontWeight = FontWeight.Bold,
modifier = Modifier.padding(3.dp))
}
}else{
Button(
modifier = Modifier
.fillMaxWidth()
.padding(10.dp),
onClick = {
}
) {
Text(
text = "¡Contesta y gana +20 puntos!",
style = MaterialTheme.typography.subtitle2,
fontWeight = FontWeight.Bold,
modifier = Modifier.padding(3.dp))
}
}
}
}
}
}
}
}
}
}
1条答案
按热度按时间xqk2d5yq1#
在
Slider
中,您可以使用onValueChangeFinished
更改enable
值:另外,您可以避免使用
if
语句来处理Button
,只需用途: