Cherry pick v5.0.2 changes (#8586)

* [android] execute resource transform callback on the right thread

* [android] allow resetting of resource transform callback

* update CHANGELOG for v5.0.2

* [android] - correct anchoring when Icon is updated (#8519)

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/annotations/MarkerView.java

@@ -389,6 +389,15 @@ public class MarkerView extends Marker {
     }
   }
 
+  /**
+   * Invalidates the MarkerView resulting in remeasuring the View.
+   */
+  void invalidate() {
+    width = height = 0;
+    offsetX = offsetY = MapboxConstants.UNMEASURED;
+    markerViewManager.invalidateViewMarkersInVisibleRegion();
+  }
+
   /**
    * Get the String representation of a MarkerView.
    *

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/annotations/MarkerViewManager.java

@@ -232,6 +232,7 @@ public class MarkerViewManager implements MapView.OnMapChangedListener {
     View convertView = markerViewMap.get(markerView);
     if (convertView != null && convertView instanceof ImageView) {
       ((ImageView) convertView).setImageBitmap(markerView.getIcon().getBitmap());
+      markerView.invalidate();
     }
   }
 

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/storage/FileSource.java

@@ -123,9 +123,9 @@ public class FileSource {
    * The callback will be executed on the main thread once for every requested URL.
    * </p>
    *
-   * @param callback the callback to be invoked
+   * @param callback the callback to be invoked or null to reset
    */
-  public native void setResourceTransform(@NonNull final ResourceTransformCallback callback);
+  public native void setResourceTransform(final ResourceTransformCallback callback);
 
   private native void initialize(String accessToken, String cachePath, String apkPath);