Reputation: 7151
I am using ComposeView inside my recyclerview item layout to work with jetpack compose. I am getting weird issue when I open screen
Error
java.lang.IllegalStateException: Vertically scrollable component was measured with an infinity maximum height constraints, which is disallowed. One of the common reasons is nesting layouts like LazyColumn and Column(Modifier.verticalScroll()). If you want to add a header before the list of items please add a header as a separate item() before the main items() inside the LazyColumn scope. There are could be other reasons for this to happen: your ComposeView was added into a LinearLayout with some weight, you applied Modifier.wrapContentSize(unbounded = true) or wrote a custom layout. Please try to remove the source of infinite constraints in the hierarchy above the scrolling container.
I tried to follow this stack overflow but it didn't work
main_activity.xml
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="parent" />
item_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<androidx.compose.ui.platform.ComposeView
android:id="@+id/itemComposable"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0" />
</androidx.constraintlayout.widget.ConstraintLayout>
viewholder.kt
class OptionsViewHolder(val binding: ItemLayoutBinding) : Recyclerview.ViewHolder(binding.root) {
private val context = binding.root.context
companion object {
fun from(parent: ViewGroup): OptionsViewHolder {
return OptionsViewHolder(
ItemLayoutBinding.inflate(
LayoutInflater.from(parent.context),
parent,
false
)
)
}
}
fun bindChoice() {
binding.itemComposable.setContent {
BoxWithConstraints {
LazyColumn(
modifier = Modifier
.fillMaxWidth()
.height([email protected])
.verticalScroll(rememberScrollState())
) {
items(getOptions()) { option ->
Text(text = option)
}
}
}
}
}
private fun getOptions() = mutableListOf(
context.getString(R.string.monitor),
context.getString(R.string.pressure),
context.getString(R.string.not_sure)
)
}
Upvotes: 34
Views: 49609
Reputation: 150
Use this LazyListScope.
@Composable
fun NestedScrollingColumnsExample() {
LazyColumn(
modifier = Modifier
.fillMaxSize(),
contentPadding = PaddingValues(16.dp)
) {
item {
ListRow()
}
item {
Spacer(modifier = Modifier.height(16.dp))
}
ListColumn(100)
}
}
@Composable
fun ListRow() {
LazyRow(
modifier = Modifier
.fillMaxWidth()
.padding(horizontal = 16.dp)
) {
items(10) { nestedIndex ->
Text(
text = "Row Item #$nestedIndex",
fontSize = 14.sp,
modifier = Modifier
.background(Color.Gray)
.padding(16.dp),
color = Color.White
)
}
}
}
fun LazyListScope.ListColumn(int: Int) {
items(int) { outerIndex ->
Text(
text = "Outer Item #$outerIndex",
fontSize = 18.sp,
modifier = Modifier
.background(Color.Blue)
.padding(16.dp),
color = Color.White
)
}
}
Upvotes: 0
Reputation: 121
In compose if you are using Lazy column, you should mention the height of lazy column.
LazyColumn(
modifier = Modifier
.height(100.dp)
){
// your code goes here
}
Upvotes: 9
Reputation: 28793
In my case I don't have RecyclerView, just Column
(ScrollView):
Column(
modifier = Modifier
.navigationBarsPadding()
.imePadding()
.verticalScroll(rememberScrollState()), // This line throws error
horizontalAlignment = Alignment.CenterHorizontally,
)
In most cases it works right.
Upvotes: 0
Reputation: 7975
You are using a LazyColumn
in a RecyclerView
which is not allowed. A LazyColumn
is the equivalent of a RecyclerView
in Compose. So you are nesting RecyclerViews or LazyColumns.
Upvotes: 18
Reputation: 29
Making a nested vertical List in Jetpack Compose.
Hey, its quite easy, I figured it out.. say we have a data structure (in kotlin)
val allTransactions = List<Transaction>
val monthlyTransaction = Transaction(monthName: String, monthlyTransactions: List< MonthlyTransactions>)
val monthlyTransaction = MonthlyTransaction(amount: String, date: String)
first have a LazyColumn
@Composable
fun mainFunction (){
LazyColumn {
if (allTransactions.isNotEmpty()) {
items(allTransactions.size) { index ->
// pass each model
TransactionComposable(model = allTransactions[index])
}
}
}
}
@Composable
fun TransactionComposable(transaction: Transaction) {
// make the title outside the column so it will be on top of the list
Text(text = transaction.monthName)
Column {
// make a for each loop inside the column
transaction.monthlyTransactions.forEach { monthlyTransaction ->
// for each of your iteration, call your inner list item inside a a row
Row {
TransactionDetailComponent (monthlyTransaction)
}
}
}
}
}
Upvotes: 2