Add snippets for /training/wearables/tiles/versioning

wear/src/main/java/com/example/wear/snippets/tile/Versioning.kt

@@ -0,0 +1,112 @@
+/*
+ * Copyright 2025 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.wear.snippets.tile
+
+import android.content.Context
+import androidx.wear.protolayout.DeviceParametersBuilders
+import androidx.wear.protolayout.DimensionBuilders.expand
+import androidx.wear.protolayout.LayoutElementBuilders.Column
+import androidx.wear.protolayout.ModifiersBuilders
+import androidx.wear.protolayout.TypeBuilders
+import androidx.wear.protolayout.material.Text
+import androidx.wear.protolayout.material.Typography
+import androidx.wear.protolayout.material.layouts.PrimaryLayout
+import androidx.wear.protolayout.material3.MaterialScope
+import androidx.wear.protolayout.material3.materialScope
+import androidx.wear.protolayout.material3.primaryLayout
+import androidx.wear.protolayout.material3.text
+import androidx.wear.protolayout.modifiers.LayoutModifier
+import androidx.wear.protolayout.modifiers.opacity
+import androidx.wear.protolayout.types.layoutString
+
+class LayoutM2 {
+    // [START android_wear_tile_version_layoutm2]
+    fun myLayout(
+        context: Context,
+        deviceConfiguration: DeviceParametersBuilders.DeviceParameters
+    ) =
+        PrimaryLayout.Builder(deviceConfiguration)
+            .setResponsiveContentInsetEnabled(true)
+            .setContent(
+                Text.Builder(context, "Hello World!")
+                    .setTypography(Typography.TYPOGRAPHY_BODY1)
+                    .build()
+            )
+            .build()
+    // [END android_wear_tile_version_layoutm2]
+
+    // [START android_wear_tile_version_modifierm2]
+    // Uses Builder-style modifier to set opacity
+    fun myModifier(): ModifiersBuilders.Modifiers =
+        ModifiersBuilders.Modifiers.Builder()
+            .setOpacity(TypeBuilders.FloatProp.Builder(0.5F).build())
+            .build()
+    // [END android_wear_tile_version_modifierm2]
+}
+
+class LayoutM3 {
+    // [START android_wear_tile_version_layoutm3]
+    fun myLayout(
+        context: Context,
+        deviceConfiguration: DeviceParametersBuilders.DeviceParameters,
+    ) =
+        materialScope(context, deviceConfiguration) {
+            primaryLayout(mainSlot = { text("Hello, World!".layoutString) }) // HELPME
+        }
+    // [END android_wear_tile_version_layoutm3]
+
+    // [START android_wear_tile_version_modifierm3]
+    // Uses Compose-like modifiers to set opacity
+    fun myModifier(): LayoutModifier = LayoutModifier.opacity(0.5F)
+    // [END android_wear_tile_version_modifierm3]
+}
+
+private fun MaterialScope.withoutHelpers() {
+    // [START android_wear_tile_version_layoutwithouthelpers]
+    primaryLayout(
+        mainSlot = {
+            Column.Builder()
+                .setWidth(expand())
+                .setHeight(expand())
+                .addContent(text("A".layoutString))
+                .addContent(text("B".layoutString))
+                .addContent(text("C".layoutString))
+                .build()
+        }
+    )
+    // [END android_wear_tile_version_layoutwithouthelpers]
+}
+
+private fun MaterialScope.withHelpers() {
+    // [START android_wear_tile_version_layoutwithhelpers]
+    // Function literal with receiver helper function
+    fun column(builder: Column.Builder.() -> Unit) =
+        Column.Builder().apply(builder).build()
+
+    primaryLayout(
+        mainSlot = {
+            column {
+                setWidth(expand())
+                setHeight(expand())
+                addContent(text("A".layoutString))
+                addContent(text("B".layoutString))
+                addContent(text("C".layoutString))
+            }
+        }
+    )
+    // [END android_wear_tile_version_layoutwithhelpers]
+}