如何在 Jetpack Compose 中禁用和启用 LazyColumn/LazyRow 中的滚动？

我想以编程方式动态启用和禁用滚动LazyColumn.

好像没有相关功能LazyListState或相关参数LazyColumn本身。我怎样才能在 Compose 中实现这一目标？

Since 1.2.0 userScrollEnabled范围加入 https://developer.android.com/jetpack/androidx/releases/compose-foundation#1.2.0-alpha01 to LazyColumn, LazyRow, and LazyVerticalGrid

LazyColumn(userScrollEnabled = false) ...

回答1.1.0和早期版本：

@Ryan 的解决方案还将禁用以编程方式调用的滚动。

这是维护者提出的解决方案此功能请求 https://issuetracker.google.com/issues/201150093。它将禁用滚动，允许编程滚动以及子视图触摸。

private val VerticalScrollConsumer = object : NestedScrollConnection {
    override fun onPreScroll(available: Offset, source: NestedScrollSource) = available.copy(x = 0f)
    override suspend fun onPreFling(available: Velocity) = available.copy(x = 0f)
}

private val HorizontalScrollConsumer = object : NestedScrollConnection {
    override fun onPreScroll(available: Offset, source: NestedScrollSource) = available.copy(y = 0f)
    override suspend fun onPreFling(available: Velocity) = available.copy(y = 0f)
}

fun Modifier.disabledVerticalPointerInputScroll(disabled: Boolean = true) =
    if (disabled) this.nestedScroll(VerticalScrollConsumer) else this

fun Modifier.disabledHorizontalPointerInputScroll(disabled: Boolean = true) =
    if (disabled) this.nestedScroll(HorizontalScrollConsumer) else this

Usage:

LazyColumn(
    modifier = Modifier.disabledVerticalPointerInputScroll()
) {
    // ...
}