توضّح هذه الصفحة مثالاً على كيفية إضافة خريطة ثلاثية الأبعاد أساسية إلى تطبيق Android باستخدام حزمة تطوير البرامج بالاستناد إلى بيانات "خرائط Google" الثلاثية الأبعاد لأجهزة Android. تفترض التعليمات الواردة في هذه الصفحة أنّك أكملت الخطوات الواردة في صفحة الإعداد وأنّ لديك ما يلي:
مشروع على Google Cloud تم تفعيل حزمة تطوير البرامج بالاستناد إلى بيانات "خرائط Google" الثلاثية الأبعاد لأجهزة Android فيه
مفتاح واجهة برمجة تطبيقات تم إعداده لاستخدامه مع حزمة تطوير البرامج بالاستناد إلى بيانات "خرائط Google" الثلاثية الأبعاد لأجهزة Android
مشروع "استوديو Android" تم إعداده لاستخدامه مع حزمة تطوير البرامج بالاستناد إلى بيانات "خرائط Google" الثلاثية الأبعاد لأجهزة Android
لمزيد من المعلومات حول هذه المتطلبات الأساسية، يُرجى الاطّلاع على مقالة الإعداد.
الجزء 1: تعديل ملف التصميم (activity_main.xml) لإضافة المكوّن Map3DView
العنصر Map3DView هو طريقة العرض التي تعرض الخريطة الثلاثية الأبعاد داخل التطبيق.
تضيف الخطوات التالية العنصر وتضبط الحالة الأولية للخريطة، بما في ذلك موضع الكاميرا والسمات ذات الصلة:
افتح ملف تنسيق النشاط الرئيسي، والذي يكون عادةً في
app/src/main/res/layout/activity_main.xml.
في الجذر ConstraintLayout (أو عنصر تصميم الجذر)، أضِف مساحة اسم map3d
XML:
في طريقة onCreate، بعد setContentView(...) وكتلة ViewCompat.setOnApplyWindowInsetsListener، عليك تهيئة map3DView واستدعاء طريقة دورة الحياة onCreate وطلب الخريطة بشكل غير متزامن:
تجاوز طريقة onMap3DViewReady يتم تشغيل دالة الاستدعاء هذه عندما تكون الخريطة جاهزة للاستخدام:
overridefunonMap3DViewReady(googleMap3D:GoogleMap3D){// Interact with the googleMap3D object herethis.googleMap3D=googleMap3D// You can now make calls to the googleMap3D object, e.g.,// googleMap3D.cameraController.flyTo(camera { ... })}
أرسِل أحداث مراحل النشاط من "النشاط" إلى Map3DView عن طريق إضافة عمليات الإلغاء التالية إلى MainActivity:
تاريخ التعديل الأخير: 2025-08-31 (حسب التوقيت العالمي المتفَّق عليه)
[null,null,["تاريخ التعديل الأخير: 2025-08-31 (حسب التوقيت العالمي المتفَّق عليه)"],[],[],null,["# Add a 3D map to your app\n\n\u003cbr /\u003e\n\n| This product or feature is Experimental (pre-GA). Pre-GA products and features might have limited support, and changes to pre-GA products and features might not be compatible with other pre-GA versions. Pre-GA Offerings are covered by the [Google\n| Maps Platform Service Specific Terms](https://cloud.google.com/maps-platform/terms/maps-service-terms). For more information, see the [launch stage descriptions](/maps/launch-stages).\n\n\u003cbr /\u003e\n\nSelect platform: [Android](/maps/documentation/maps-3d/android-sdk/add-a-3d-map \"View this page for the Android platform docs.\") [iOS](/maps/documentation/maps-3d/ios-sdk/add-a-3d-map \"View this page for the iOS platform docs.\") [JavaScript](/maps/documentation/javascript/3d/get-started \"View this page for the JavaScript platform docs.\")\n\n\u003cbr /\u003e\n\nThis page walks through an example of how to add a basic 3D map to an Android\napp using the Maps 3D SDK for Android. The instructions on this page assume that you\nhave already completed the steps in the\n[Setup](/maps/documentation/maps-3d/android-sdk/setup) page and have the\nfollowing:\n\n- A Google Cloud project with the Maps 3D SDK for Android enabled\n- An API key configured to use with the Maps 3D SDK for Android\n- An Android Studio project set up to use with the Maps 3D SDK for Android\n\nFor more information about these prerequisites, see\n[Setup](/maps/documentation/maps-3d/android-sdk/setup).\n\nPart 1: Update Layout File (`activity_main.xml`) to add the `Map3DView` component\n---------------------------------------------------------------------------------\n\nThe `Map3DView` component is the view that renders the 3D map within the app.\nThe following steps add the component and configure the initial state of the\nmap, including the camera position and related attributes:\n| **Note:** The steps in this section assume that you have created and configured your Android Studio project using the process described in [Setup](/maps/documentation/maps-3d/android-sdk/setup), or that you have added a new View activity to an existing project. If you create a new Android Studio project without adding a View activity, your project won't contain an `activity_main.xml` file.\n\n1. Open your main activity's layout file, which is usually located at\n `app/src/main/res/layout/activity_main.xml`.\n\n2. In the root `ConstraintLayout` (or your root layout element), add the `map3d`\n XML namespace:\n\n xmlns:map3d=\"http://schemas.android.com/apk/res-auto\"\n\n3. Delete the default `\u003cTextView\u003e` that displays \"Hello World!\".\n\n4. Add the `Map3DView` component to your layout. You can customize the camera\n position and other attributes:\n\n \u003c?xml version=\"1.0\" encoding=\"utf-8\"?\u003e\n \u003candroidx.constraintlayout.widget.ConstraintLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"\n xmlns:app=\"http://schemas.android.com/apk/res-auto\"\n xmlns:map3d=\"http://schemas.android.com/apk/res-auto\" xmlns:tools=\"http://schemas.android.com/tools\"\n android:id=\"@+id/main\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n tools:context=\".MainActivity\"\u003e\n\n \u003ccom.google.android.gms.maps3d.Map3DView\n android:id=\"@+id/map3dView\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n map3d:mode=\"hybrid\"\n map3d:centerLat=\"38.544012\"\n map3d:centerLng=\"-107.670428\"\n map3d:centerAlt=\"2427.6\"\n map3d:heading=\"310\"\n map3d:tilt=\"63\"\n map3d:range=\"8266\"\n map3d:roll=\"0\"\n map3d:minAltitude=\"0\"\n map3d:maxAltitude=\"1000000\"\n map3d:minHeading=\"0\"\n map3d:maxHeading=\"360\"\n map3d:minTilt=\"0\"\n map3d:maxTilt=\"90\"\n app:layout_constraintBottom_toBottomOf=\"parent\"\n app:layout_constraintEnd_toEndOf=\"parent\"\n app:layout_constraintStart_toStartOf=\"parent\"\n app:layout_constraintTop_toTopOf=\"parent\" /\u003e\n \u003c/androidx.constraintlayout.widget.ConstraintLayout\u003e\n\nPart 2: Update MainActivity.kt\n------------------------------\n\nThe following steps initialize the `Map3DView` component added to the\n`activity_main.xml` file in Part 1 and manage component lifecycle events:\n\n1. Open your `MainActivity.kt` file, which is usually located at\n `app/src/main/java/com/example/yourpackagename/MainActivity.kt`.\n\n2. Add the necessary imports for the Maps 3D SDK for Android:\n\n import com.google.android.gms.maps3d.GoogleMap3D\n import com.google.android.gms.maps3d.Map3DView\n import com.google.android.gms.maps3d.OnMap3DViewReadyCallback\n\n3. Modify the `MainActivity` class to implement `OnMap3DViewReadyCallback`:\n\n class MainActivity : AppCompatActivity(), OnMap3DViewReadyCallback {\n\n4. Declare variables for `Map3DView` and `GoogleMap3D`:\n\n private lateinit var map3DView: Map3DView\n private var googleMap3D: GoogleMap3D? = null\n\n5. In the `onCreate` method, after `setContentView(...)` and the\n `ViewCompat.setOnApplyWindowInsetsListener` block, initialize the `map3DView`,\n call its `onCreate` lifecycle method, and request the map asynchronously:\n\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n enableEdgeToEdge()\n setContentView(R.layout.activity_main)\n ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets -\u003e\n val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())\n v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)\n insets\n }\n\n map3DView = findViewById(R.id.map3dView)\n map3DView.onCreate(savedInstanceState)\n map3DView.getMap3DViewAsync(this)\n }\n\n6. Override the `onMap3DViewReady` method. This callback is triggered when the\n map is ready to be used:\n\n override fun onMap3DViewReady(googleMap3D: GoogleMap3D) {\n // Interact with the googleMap3D object here\n this.googleMap3D = googleMap3D\n // You can now make calls to the googleMap3D object, e.g.,\n // googleMap3D.cameraController.flyTo(camera { ... })\n }\n\n7. Forward lifecycle events from your Activity to the `Map3DView` by adding the\n following overrides to the `MainActivity`:\n\n override fun onStart() {\n super.onStart()\n map3DView.onStart()\n }\n\n override fun onResume() {\n super.onResume()\n map3DView.onResume()\n }\n\n override fun onPause() {\n map3DView.onPause()\n super.onPause()\n }\n\n override fun onStop() {\n map3DView.onStop()\n super.onStop()\n }\n\n override fun onDestroy() {\n map3DView.onDestroy()\n super.onDestroy()\n }\n\n override fun onSaveInstanceState(outState: Bundle) {\n super.onSaveInstanceState(outState)\n map3DView.onSaveInstanceState(outState)\n }\n\n override fun onLowMemory() {\n super.onLowMemory()\n map3DView.onLowMemory()\n }\n\nPart 3: Sync Gradle and Run\n---------------------------\n\nNow that you've updated your app's layout and activity, you can build and run\nthe app to see the 3D map view.\n\n1. To sync your project with Gradle, select **File \\\u003e Sync Project with Gradle Files.**\n\n2. To build and run your app on an emulator or a physical device, select\n **Run \\\u003e Run**.\n\nIf everything is configured correctly, you should see a 3D map displayed in your\napp, centered near the coordinates specified in your `activity_main.xml`.\n\nNext steps\n----------\n\nNow that you've added a basic 3D map to your app, you can explore more advanced\nfeatures of the Maps 3D SDK for Android, such as\n[camera path animations](/maps/documentation/maps-3d/android-sdk/custom-camera-paths),\n[3D markers](/maps/documentation/maps-3d/android-sdk/add-a-marker), or\n[polygons](/maps/documentation/maps-3d/android-sdk/add-polygons)."]]