Add location snippet (#652)

Author: kul3r4

wear/src/main/AndroidManifest.xml

@@ -77,6 +77,11 @@
             android:taskAffinity=""
             android:theme="@android:style/Theme.DeviceDefault"/>
 
+        <activity android:name=".snippets.location.LocationActivity"
+            android:exported="true"
+            android:taskAffinity=""
+            android:theme="@android:style/Theme.DeviceDefault"/>
+
         <!-- [START android_wear_tile_manifest] -->
         <service
             android:name=".snippets.tile.MyTileService"

wear/src/main/java/com/example/wear/snippets/location/LocationActivity.kt

@@ -0,0 +1,86 @@
+/*
+ * 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.location
+
+import android.content.pm.PackageManager
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.wear.compose.foundation.lazy.TransformingLazyColumn
+import androidx.wear.compose.foundation.lazy.rememberTransformingLazyColumnState
+import androidx.wear.compose.material3.ListHeader
+import androidx.wear.compose.material3.ScreenScaffold
+import androidx.wear.compose.material3.Text
+import com.google.android.horologist.compose.layout.AppScaffold
+import com.google.android.horologist.compose.layout.ColumnItemType
+import com.google.android.horologist.compose.layout.rememberResponsiveColumnPadding
+
+
+// [START android_wear_location]
+class LocationActivity : ComponentActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        // [START_EXCLUDE]
+        setContent {
+            WearApp(hasGps = { hasGps() })
+        }
+        // [END_EXCLUDE]
+    }
+    fun hasGps(): Boolean =
+        packageManager.hasSystemFeature(PackageManager.FEATURE_LOCATION_GPS)
+}
+// [END android_wear_location]
+
+@Composable
+fun WearApp(hasGps: () -> Boolean) {
+
+    val columnState = rememberTransformingLazyColumnState()
+    val contentPadding = rememberResponsiveColumnPadding(
+        first = ColumnItemType.ListHeader,
+        last = ColumnItemType.Button,
+    )
+    AppScaffold {
+        ScreenScaffold(
+            scrollState = columnState,
+            contentPadding = contentPadding
+        ) { contentPadding ->
+            TransformingLazyColumn(
+                state = columnState,
+                contentPadding = contentPadding
+            ) {
+                item {
+                    ListHeader(
+                        modifier = Modifier.fillMaxWidth()
+                    ) {
+                        if (!hasGps()) {
+                            Text(text = "This hardware doesn't have GPS")
+                            // Fall back to functionality that doesn't use location or
+                            // warn the user that location function isn't available.
+                        }
+                        else {
+                            Text(text = "This hardware has GPS")
+                        }
+                    }
+                }
+            }
+        }
+    }
+}