Clear callbacks as part of OnDestroy

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapFragment.java

@@ -198,6 +198,14 @@ public void onLowMemory() {
   public void onDestroyView() {
     super.onDestroyView();
     map.onDestroy();
+  }
+
+  /**
+   * Called when the fragment is destroyed.
+   */
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
     mapReadyCallbackList.clear();
   }
 

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/SupportMapFragment.java

@@ -187,12 +187,20 @@ public void onLowMemory() {
   }
 
   /**
-   * Called when the fragment is view hiearchy is being destroyed.
+   * Called when the fragment is view hierarchy is being destroyed.
    */
   @Override
   public void onDestroyView() {
     super.onDestroyView();
     map.onDestroy();
+  }
+
+  /**
+   * Called when the fragment is destroyed.
+   */
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
     mapReadyCallbackList.clear();
   }
 

platform/android/MapboxGLAndroidSDKTestApp/src/main/AndroidManifest.xml

@@ -162,14 +162,25 @@
         <activity
             android:name=".activity.fragment.SupportMapFragmentActivity"
             android:description="@string/description_map_fragment_support"
-            android:label="@string/activity_map_fragment_suport">
+            android:label="@string/activity_map_fragment_support">
             <meta-data
                 android:name="@string/category"
                 android:value="@string/category_fragment" />
             <meta-data
                 android:name="android.support.PARENT_ACTIVITY"
                 android:value=".activity.FeatureOverviewActivity" />
         </activity>
+        <activity
+                android:name=".activity.fragment.FragmentBackStackActivity"
+                android:description="@string/description_map_fragment_backstack"
+                android:label="@string/activity_map_fragment_backstack">
+            <meta-data
+                    android:name="@string/category"
+                    android:value="@string/category_fragment" />
+            <meta-data
+                    android:name="android.support.PARENT_ACTIVITY"
+                    android:value=".activity.FeatureOverviewActivity" />
+        </activity>
         <activity
             android:name=".activity.fragment.MultiMapActivity"
             android:description="@string/description_multimap"
@@ -884,9 +895,6 @@
                     android:value=".activity.FeatureOverviewActivity" />
         </activity>
         <!-- For Instrumentation tests -->
-        <activity
-            android:name=".activity.style.RuntimeStyleTestActivity"
-            android:screenOrientation="portrait" />
         <activity
             android:name=".activity.style.RuntimeStyleTimingTestActivity"
             android:screenOrientation="portrait" />

platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/fragment/FragmentBackStackActivity.kt

@@ -0,0 +1,45 @@
+package com.mapbox.mapboxsdk.testapp.activity.fragment
+
+import android.os.Bundle
+import android.support.v7.app.AppCompatActivity
+import android.view.View
+import com.mapbox.mapboxsdk.maps.MapboxMap
+import com.mapbox.mapboxsdk.maps.Style
+import com.mapbox.mapboxsdk.maps.SupportMapFragment
+import com.mapbox.mapboxsdk.testapp.R
+import kotlinx.android.synthetic.main.activity_backstack_fragment.*
+
+/**
+ * Test activity showcasing using the MapFragment API as part of a backstacked fragment.
+ */
+class FragmentBackStackActivity : AppCompatActivity() {
+
+    private lateinit var mapFragment: SupportMapFragment
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_backstack_fragment)
+
+        mapFragment = SupportMapFragment.newInstance()
+        mapFragment.getMapAsync { initMap(it) }
+
+        supportFragmentManager.beginTransaction().apply {
+            add(R.id.container, mapFragment)
+        }.commit()
+
+        button.setOnClickListener { handleClick(it) }
+    }
+
+    private fun initMap(mapboxMap: MapboxMap) {
+        mapboxMap.setStyle(Style.SATELLITE) {
+            mapboxMap.setPadding(300, 300, 300, 300)
+        }
+    }
+
+    private fun handleClick(button: View) {
+        supportFragmentManager.beginTransaction().apply {
+            replace(R.id.container, NestedViewPagerActivity.ItemAdapter.EmptyFragment())
+            addToBackStack("map_empty_fragment")
+        }.commit()
+    }
+}

platform/android/MapboxGLAndroidSDKTestApp/src/main/res/layout/activity_backstack_fragment.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+             android:layout_width="match_parent"
+             android:layout_height="match_parent">
+
+    <FrameLayout android:id="@+id/container"
+                 android:layout_width="match_parent"
+                 android:layout_height="match_parent"/>
+
+    <Button android:layout_width="match_parent"
+            android:layout_height="58dp"
+            android:id="@+id/button"
+            android:text="Replace with empty fragment"/>
+
+</FrameLayout>

platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/descriptions.xml

@@ -5,6 +5,7 @@
     <string name="description_cameraposition">CameraPosition capabilities</string>
     <string name="description_map_fragment">Showcase MapFragment</string>
     <string name="description_map_fragment_support">Showcase SupportMapFragment</string>
+    <string name="description_map_fragment_backstack">Showcase using a Map Fragment with a fragment backstack</string>
     <string name="description_multimap">Activity with multiple maps on screen</string>
     <string name="description_press_for_marker">Add marker to map on long press</string>
     <string name="description_camera_zoom">Different types of zoom methods</string>

platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/titles.xml

@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <string name="activity_map_fragment_suport">Support Map Fragment</string>
+    <string name="activity_map_fragment_support">Support Map Fragment</string>
     <string name="activity_map_fragment">Map Fragment</string>
+    <string name="activity_map_fragment_backstack">Backstack Map Fragment</string>
     <string name="activity_multimap">Multiple Maps on Screen</string>
     <string name="activity_add_bulk_markers">Add Markers In Bulk</string>
     <string name="activity_animated_symbollayer">Animated SymbolLayer</string>

platform/android/scripts/exclude-activity-gen.json

@@ -45,5 +45,6 @@
   "RuntimeStyleActivity",
   "GridSourceActivity",
   "AnimatedImageSourceActivity",
-  "EspressoTestActivity"
+  "EspressoTestActivity",
+  "FragmentBackStackActivity"
 ]