Add getting started guide for maplibre gl native for android (#939)

Co-authored-by: Loc Nguyen <loc.nguyen@aensmart.com>
Co-authored-by: Bart Louwers <bart.louwers@gmail.com>
Co-authored-by: Bart Louwers <bart@emeel.net>

docs/mdbook/src/SUMMARY.md

@@ -8,4 +8,7 @@
     - [Expressions](design/expressions.md)
     - [Architectural Problems and Recommendations](design/archictural-problems-and-recommendations.md)
     - [Android Map Rendering Data Flow](design/android-map-rendering-data-flow.md)
-    - [Geometry Tile Worker](design/geometry-tile-worker.md)
+    - [Geometry Tile Worker](design/geometry-tile-worker.md)
+
+- [MapLibre GL Native for Android](./android/README.md)
+    - [Quickstart](./android/getting-started-guide.md)

docs/mdbook/src/android/README.md

@@ -0,0 +1,3 @@
+# MapLibre GL Native for Android
+
+MapLibre GL Native for Android is a library for embedding interactive map views with scalable, customizable vector maps onto Android devices.

docs/mdbook/src/android/getting-started-guide.md

@@ -0,0 +1,113 @@
+# Quickstart
+
+1. Add bintray Maven repositories to your project-level Gradle file (usually `<project>/<app-module>/build.gradle`).
+
+    ```gradle
+    allprojects {
+        repositories {
+        ...
+        mavenCentral()                
+        }
+    }
+    ```
+
+2. Add the library as a dependency into your module Gradle file (usually `<project>/<app-module>/build.gradle`). Replace `<version>` with the latest MapLibre GL Native version (e.g.: `org.maplibre.gl:android-sdk:10.0.2`). Visit [https://mvnrepository.com/artifact/org.maplibre.gl/android-sdk](https://mvnrepository.com/artifact/org.maplibre.gl/android-sdk) to view the version history of MapLibre GL Native for android. 
+
+    ```gradle
+    dependencies {
+        ...
+        implementation 'org.maplibre.gl:android-sdk:<version>'
+        ...
+    }
+    ```
+
+3. Sync your Android project with Gradle files.
+
+4. Add a `MapView` to your layout XML file (usually `<project>/<app-module>/src/main/res/layout/activity_main.xml`).
+
+    ```xml
+    ...
+    <com.mapbox.mapboxsdk.maps.MapView
+        android:id="@+id/mapView"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        />
+    ...
+    ```
+
+5. Initialize the `MapView` in your `MainActivity` file by following the example below:
+
+    ```kotlin
+    import androidx.appcompat.app.AppCompatActivity
+    import android.os.Bundle
+    import android.view.LayoutInflater
+    import com.mapbox.mapboxsdk.Mapbox
+    import com.mapbox.mapboxsdk.camera.CameraPosition
+    import com.mapbox.mapboxsdk.geometry.LatLng
+    import com.mapbox.mapboxsdk.maps.MapView
+
+    class MainActivity : AppCompatActivity() {
+
+        // Declare a variable for MapView
+        private lateinit var mapView: MapView
+
+        override fun onCreate(savedInstanceState: Bundle?) {
+            super.onCreate(savedInstanceState)
+            
+            // Init MapLibre
+            Mapbox.getInstance(this)
+
+            // Init layout view
+            val inflater = LayoutInflater.from(this)
+            val rootView = inflater.inflate(R.layout.activity_main, null)
+            setContentView(rootView)
+
+            // Init the MapView
+            mapView = rootView.findViewById(R.id.mapView)
+            mapView.getMapAsync { map ->
+                map.setStyle("https://demotiles.maplibre.org/style.json")
+                map.cameraPosition = CameraPosition.Builder().target(LatLng(0.0,0.0)).zoom(1.0).build()
+            }
+        }
+
+        override fun onStart() {
+            super.onStart()
+            mapView.onStart()
+        }
+
+        override fun onResume() {
+            super.onResume()
+            mapView.onResume()
+        }
+
+        override fun onPause() {
+            super.onPause()
+            mapView.onPause()
+        }
+
+        override fun onStop() {
+            super.onStop()
+            mapView.onStop()
+        }
+
+        override fun onLowMemory() {
+            super.onLowMemory()
+            mapView.onLowMemory()
+        }
+
+        override fun onDestroy() {
+            super.onDestroy()
+            mapView.onDestroy()
+        }
+
+        override fun onSaveInstanceState(outState: Bundle) {
+            super.onSaveInstanceState(outState)
+            mapView.onSaveInstanceState(outState)
+        }
+    }
+    ```
+
+6. Build and run the app. If you run the app successfully, a map will be displayed as seen in the screenshot below.
+<div style="text-align: center;">
+<img src="https://user-images.githubusercontent.com/32692818/228113379-475e86f5-e3fa-4a36-8b4b-1fcba0f1eb3b.png" alt="Screenshot with the map in demotile style" width="50%" height="50%">
+</div>