Add a Basic Map Demo

ApiDemos/kotlin/app/build.gradle

@@ -22,6 +22,7 @@ android {
     }
 }
 
+
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
@@ -30,5 +31,7 @@ dependencies {
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.1'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+    implementation 'com.google.android.gms:play-services-maps:11.8.0'
+    compile 'com.google.android.gms:play-services-location:11.8.0'
 
 }

ApiDemos/kotlin/app/src/debug/res/values/google_maps_api.xml

@@ -0,0 +1,17 @@
+<resources>
+    <!--
+    TODO: Before you run your application, you need a Google Maps API key.
+
+    See this page for more information:
+    https://developers.google.com/maps/documentation/android/start#get_an_android_certificate_and_the_google_maps_api_key
+
+    Once you have your key (it starts with "AIza"), replace the "google_maps_key"
+    string in this file.
+
+    Note: This resource is used for the debug build target. Update this file if you just want to run
+    the demo app.
+    -->
+    <string name="google_maps_key" translatable="false" templateMergeStrategy="preserve">
+        ADD_YOUR_KEY_HERE
+    </string>
+</resources>

ApiDemos/kotlin/app/src/main/AndroidManifest.xml

@@ -23,6 +23,10 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
+        <meta-data
+            android:name="com.google.android.geo.API_KEY"
+            android:value="@string/google_maps_key" />
+
         <activity android:name=".MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -30,6 +34,7 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name=".BasicMapDemoActivity"></activity>
     </application>
 
 </manifest>

ApiDemos/kotlin/app/src/main/java/com/example/kotlindemos/BasicMapDemoActivity.kt

@@ -0,0 +1,57 @@
+/*
+ * Copyright 2018 Google LLC
+ *
+ * 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.kotlindemos
+
+import android.support.v7.app.AppCompatActivity
+import android.os.Bundle
+
+import com.google.android.gms.maps.CameraUpdateFactory
+import com.google.android.gms.maps.GoogleMap
+import com.google.android.gms.maps.OnMapReadyCallback
+import com.google.android.gms.maps.SupportMapFragment
+import com.google.android.gms.maps.model.LatLng
+import com.google.android.gms.maps.model.MarkerOptions
+
+/**
+ * This shows how to create a simple activity with a map and a marker on the map.
+ */
+class BasicMapDemoActivity :
+        AppCompatActivity(),
+        OnMapReadyCallback {
+
+    val SYDNEY = LatLng(-33.862, 151.21)
+    val ZOOM_LEVEL = 13f
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_basic_map_demo)
+        val mapFragment : SupportMapFragment? =
+                supportFragmentManager.findFragmentById(R.id.map) as? SupportMapFragment
+        mapFragment?.getMapAsync(this)
+    }
+
+    /**
+     * This is where we can add markers or lines, add listeners or move the camera. In this case,
+     * we just move the camera to Sydney and add a marker in Sydney.
+     */
+    override fun onMapReady(googleMap: GoogleMap) {
+        with(googleMap) {
+            moveCamera(CameraUpdateFactory.newLatLngZoom(SYDNEY, ZOOM_LEVEL))
+            addMarker(MarkerOptions().position(SYDNEY))
+        }
+    }
+}

ApiDemos/kotlin/app/src/main/java/com/example/kotlindemos/DemoDetailsList.kt

@@ -21,6 +21,9 @@ package com.example.kotlindemos
  */
 class DemoDetailsList {
     companion object {
-        val DEMOS = listOf<DemoDetails>()
+        val DEMOS = listOf<DemoDetails>(
+                DemoDetails(R.string.basic_demo_label, R.string.basic_demo_details,
+                        BasicMapDemoActivity::class.java)
+        )
     }
 }

ApiDemos/kotlin/app/src/main/res/layout/activity_basic_map_demo.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright 2018 Google LLC
+
+    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.
+ -->
+<fragment xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/map"
+    android:name="com.google.android.gms.maps.SupportMapFragment"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context="com.example.kotlindemos.BasicMapDemoActivity">
+
+</fragment>

ApiDemos/kotlin/app/src/main/res/values/strings.xml

@@ -18,4 +18,9 @@
     <string name="demo_title">Google Maps API Demos</string>
     <string name="no_demos">No demos</string>
     <string name="play_services_not_installed">Google Play services is not installed on this device.</string>
+
+    <!-- Basic Map Demo -->
+    <string name="basic_demo_label">Basic Map</string>
+    <string name="basic_demo_details">Launches a map with marker pointing at Sydney</string>
+
 </resources>