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feat: adds Grid with LazyColumn snippets #1059

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feat: adds Grid with LazyColumn snippets #1059

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61 changes: 61 additions & 0 deletions compose/snippets/src/main/java/com/example/compose/snippets/layouts/grid/GridByExamples.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@
package com.example.compose.snippets.layouts.grid

import androidx.compose.foundation.background
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.ExperimentalGridApi
import androidx.compose.foundation.layout.Grid
Expand All @@ -28,6 +29,8 @@ import androidx.compose.foundation.layout.fillMaxHeight
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.width
import androidx.compose.foundation.lazy.LazyColumn
import androidx.compose.foundation.lazy.items
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material3.Card
import androidx.compose.material3.MaterialTheme
Expand Down Expand Up @@ -330,3 +333,61 @@ private fun GridTabletop() {
}
// [END android_compose_grid_tabletop]
}


@Preview(showBackground = true)
@Composable
fun GridWithLazyColumnPreview() {
GridWithLazyColumn(items = List(6) { "Item $it" })
}

// [START android_compose_grid_with_lazy_column_setup]
enum class ScreenArea {
Header,
Content,
Footer
}


val lazyConfig: GridConfigurationScope.() -> Unit = {
column(minmax(0.dp, 1.fr))
row(GridTrackSize.MaxContent)
row(minmax(0.dp, 1.fr))
row(GridTrackSize.MaxContent)

area(ScreenArea.Header, row = 1, column = 1)
area(ScreenArea.Content, row = 2, column = 1)
area(ScreenArea.Footer, row = 3, column = 1)
gap(8.dp)
}
// [END android_compose_grid_with_lazy_column_setup]


// [START android_compose_grid_with_lazy_column]
@Composable
fun GridWithLazyColumn(
modifier: Modifier = Modifier,
items: List<String> = emptyList(),
) {
Grid(
modifier = modifier.fillMaxSize(),
config = lazyConfig
) {
Text("Header", Modifier.gridItem(ScreenArea.Header).padding(16.dp))
Text("Footer", Modifier.gridItem(ScreenArea.Footer).padding(16.dp))

// LazyColumn placed in the content area for large datasets
LazyColumn(
modifier = Modifier
.gridItem(ScreenArea.Content)
.fillMaxSize(),
verticalArrangement = Arrangement.spacedBy(8.dp)
) {
items(items) { item ->
Text(item, Modifier.padding(16.dp))
}
}
}
}
// [END android_compose_grid_with_lazy_column]

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