Migrate Compose image optimization and scrollable grid snippets

compose/snippets/src/main/java/com/example/compose/snippets/images/ImageOptimizationSnippets.kt

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2026 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.compose.snippets.images
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.graphics.painter.Painter
+
+// [START android_compose_graphics_images_optimization]
+// Prefer this:
+@Composable
+fun MyImage(url: String) {
+
+}
+// Over this:
+@Composable
+fun MyImage(painter: Painter) {
+
+}
+// [END android_compose_graphics_images_optimization]

compose/snippets/src/main/java/com/example/compose/snippets/lists/LazyListSnippets.kt

@@ -854,3 +854,13 @@ fun ScrollingGrid() {
     }
 }
 // [END android_compose_layout_scrollable_grid]
+
+@Composable
+private fun LazyVerticalGridAdaptiveSample() {
+    // [START android_compose_layout_scrollable_grid_adaptive]
+    LazyVerticalGrid(
+        columns = GridCells.Adaptive(minSize = 20.dp)
+    ) {}
+    // [END android_compose_layout_scrollable_grid_adaptive]
+}
+