[android] - remove timer from compassView, make fading when facing north optional. (#6786)

save state for recreating map view

fix review comments

unit test covering default value for fading and setting a new value

fixup setter, fix default value

platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/annotation/PolygonActivity.java

@@ -58,6 +58,7 @@ public class PolygonActivity extends AppCompatActivity implements OnMapReadyCall
                 .attributionTintColor(RED_COLOR)
                 // deprecated feature!
                 .textureMode(true)
+                .compassFadesWhenFacingNorth(false)
                 .styleUrl(Style.MAPBOX_STREETS)
                 .camera(new CameraPosition.Builder()
                         .target(new LatLng(45.520486, -122.673541))

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

@@ -28,6 +28,7 @@
                 android:layout_height="match_parent"
                 app:center_latitude="51.506675"
                 app:center_longitude="-0.128699"
+                app:compass_fade_facing_north="false"
                 app:direction="90"
                 app:tilt="40"
                 app:zoom="10" />

platform/android/MapboxGLAndroidSDKTestApp/src/test/java/com/mapbox/mapboxsdk/maps/UiSettingsTest.java

@@ -7,6 +7,7 @@ import org.junit.Test;
 import org.mockito.InjectMocks;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.mock;
@@ -56,6 +57,13 @@ public class UiSettingsTest {
         assertTrue("Compass margin bottom should be same", uiSettings.getCompassMarginBottom() == 4);
     }
 
+    @Test
+    public void testCompassFadeWhenFacingNorth(){
+        assertTrue("Compass should fade when facing north by default.", uiSettings.isCompassFadeWhenFacingNorth());
+        uiSettings.setCompassFadeFacingNorth(false);
+        assertFalse("Compass fading should be disabled", uiSettings.isCompassFadeWhenFacingNorth());
+    }
+
     @Test
     public void testLogoEnabled() {
         uiSettings.setLogoEnabled(true);