Add code snippets for support-connected-displays.md

compose/snippets/src/main/java/com/example/compose/snippets/adaptivelayouts/SupportConnectedDisplays.kt

@@ -0,0 +1,66 @@
+/*
+ * 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.adaptivelayouts
+
+import android.app.ActivityOptions
+import android.content.Context
+import android.content.Intent
+import android.hardware.display.DisplayManager
+import android.os.Build
+import android.os.Bundle
+import android.view.Display
+import androidx.activity.ComponentActivity
+
+class SupportConnectedDisplays : ComponentActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+    }
+
+    private fun getDisplayInfoSnippet() {
+        // [START android_compose_layouts_connected_displays_get_info]
+        val displayManager = getSystemService(Context.DISPLAY_SERVICE) as DisplayManager
+        val displays = displayManager.getDisplays()
+        // The default display is 0. External displays have other IDs.
+        val externalDisplays = displays.filter { it.displayId != Display.DEFAULT_DISPLAY }
+        // [END android_compose_layouts_connected_displays_get_info]
+    }
+
+    private fun launchActivitySnippet() {
+        // [START android_compose_layouts_connected_displays_launch_activity]
+        // Get DisplayManager and find the first external display.
+        val displayManager = getSystemService(Context.DISPLAY_SERVICE) as DisplayManager
+        val externalDisplayId = displayManager.displays
+            .firstOrNull { it.displayId != Display.DEFAULT_DISPLAY }
+            ?.displayId
+
+        // If an external display is found, launch the activity on it.
+        if (externalDisplayId != null) {
+            val intent = Intent(this, MySecondaryActivity::class.java)
+            val options = ActivityOptions.makeBasic()
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                options.launchDisplayId = externalDisplayId
+            }
+            startActivity(intent, options.toBundle())
+        } else {
+            // Optionally, handle the case where no external display is connected.
+        }
+        // [END android_compose_layouts_connected_displays_launch_activity]
+    }
+}
+
+class MySecondaryActivity : ComponentActivity()