# LazyColumn
A [LazyColumn](https://developer.android.com/reference/kotlin/androidx/compose/foundation/lazy/package-summary#lazycolumn) is a vertically scrolling list that only composes and lays out the currently visible items.
It's similar to a Recyclerview in the classic Android View system.
```kotlin
@Composable
fun LazyColumnDemo() {
val list = listOf(
"A", "B", "C", "D"
) + ((0..100).map { it.toString() })
LazyColumn(modifier = Modifier.fillMaxHeight()) {
items(items = list, itemContent = { item ->
Log.d("COMPOSE", "This get rendered $item")
when (item) {
"A" -> {
Text(text = item, style = TextStyle(fontSize = 80.sp))
}
"B" -> {
Button(onClick = {}) {
Text(text = item, style = TextStyle(fontSize = 80.sp))
}
}
"C" -> {
//Do Nothing
}
"D" -> {
Text(text = item)
}
else -> {
Text(text = item, style = TextStyle(fontSize = 80.sp))
}
}
})
}
}
```
## See also:
* [Official Docs]({{ site.composedoc }}/foundation/lazy/package-summary#lazycolumn)
* [Full Example Code]({{ site.samplefolder }}/foundation/LazyColumnDemo.kt)