Make improve this map translatable

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/attribution/AttributionParser.java

@@ -20,6 +20,7 @@
  */
 public class AttributionParser {
 
+  private static final String IMPROVE_THIS_MAP = "Improve this map";
   private final WeakReference<Context> context;
   private final Set<Attribution> attributions = new LinkedHashSet<>();
   private final String attributionData;
@@ -104,6 +105,9 @@ private void parseUrlSpan(SpannableStringBuilder htmlBuilder, URLSpan urlSpan) {
     String url = urlSpan.getURL();
     if (isUrlValid(url)) {
       String anchor = parseAnchorValue(htmlBuilder, urlSpan);
+      if (isImproveThisMapAnchor(anchor)) {
+        anchor = translateImproveThisMapAnchor(anchor);
+      }
       attributions.add(new Attribution(anchor, url));
     }
   }
@@ -118,6 +122,30 @@ private boolean isUrlValid(String url) {
     return isValidForImproveThisMap(url) && isValidForMapbox(url);
   }
 
+  /**
+   * Invoked to validate if an anchor is equal to Improve this map coming from tilesets.
+   *
+   * @param anchor the anchor to be validated
+   * @return if the url is valid
+   */
+  private boolean isImproveThisMapAnchor(String anchor) {
+    return anchor.equals(IMPROVE_THIS_MAP);
+  }
+
+  /**
+   * Invoked to replace the english Improve this map with localized variant.
+   *
+   * @param anchor the anchor to be translated
+   * @return the translated anchor
+   */
+  private String translateImproveThisMapAnchor(String anchor) {
+    Context context = this.context.get();
+    if (context != null) {
+      anchor = context.getString(R.string.mapbox_telemetryImproveMap);
+    }
+    return anchor;
+  }
+
   /**
    * Invoked to validate if an url is valid for the improve map configuration.
    *

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

@@ -171,8 +171,12 @@ private Set<Attribution> build() {
       }
 
       List<String> attributions = new ArrayList<>();
+      String attribution;
       for (Source source : mapboxMap.getSources()) {
-        attributions.add(source.getAttribution());
+        attribution = source.getAttribution();
+        if (!attribution.isEmpty()) {
+          attributions.add(source.getAttribution());
+        }
       }
 
       return new AttributionParser.Options()

platform/android/MapboxGLAndroidSDK/src/test/java/com/mapbox/mapboxsdk/attribution/AttributionParseTest.java

@@ -41,7 +41,7 @@ public void testParseAttributionStringSatellite() throws Exception {
           break;
         case 2:
           assertEquals("URL improve map should match", "https://www.mapbox.com/map-feedback/", attribution.getUrl());
-          assertEquals("Title improve map should match", "Improve this map", attribution.getTitle());
+          assertEquals("Title improve map should match", "Improve This Map", attribution.getTitle());
           break;
         case 3:
           assertEquals("URL digital globe should match", "https://www.digitalglobe.com/", attribution.getUrl());
@@ -75,7 +75,7 @@ public void testParseAttributionStringStreets() throws Exception {
           break;
         case 2:
           assertEquals("URL improve map should match", "https://www.mapbox.com/map-feedback/", attribution.getUrl());
-          assertEquals("Title improve map should match", "Improve this map", attribution.getTitle());
+          assertEquals("Title improve map should match", "Improve This Map", attribution.getTitle());
           break;
       }
       counter++;
@@ -102,7 +102,7 @@ public void testParseAttributionWithoutMapbox() throws Exception {
           break;
         case 1:
           assertEquals("URL improve map should match", "https://www.mapbox.com/map-feedback/", attribution.getUrl());
-          assertEquals("Title improve map should match", "Improve this map", attribution.getTitle());
+          assertEquals("Title improve map should match", "Improve This Map", attribution.getTitle());
           break;
       }
       counter++;
@@ -131,7 +131,7 @@ public void testParseAttributionArrayString() throws Exception {
           break;
         case 2:
           assertEquals("URL improve map should match", "https://www.mapbox.com/map-feedback/", attribution.getUrl());
-          assertEquals("Title improve map should match", "Improve this map", attribution.getTitle());
+          assertEquals("Title improve map should match", "Improve This Map", attribution.getTitle());
           break;
         case 3:
           assertEquals("URL digital globe should match", "https://www.digitalglobe.com/", attribution.getUrl());
@@ -195,7 +195,7 @@ public void testParseHideCopyrightAttributionArrayString() throws Exception {
           break;
         case 2:
           assertEquals("URL improve map should match", "https://www.mapbox.com/map-feedback/", attribution.getUrl());
-          assertEquals("Title improve map should match", "Improve this map", attribution.getTitle());
+          assertEquals("Title improve map should match", "Improve This Map", attribution.getTitle());
           break;
         case 3:
           assertEquals("URL digital globe should match", "https://www.digitalglobe.com/", attribution.getUrl());