[android] - harden MapboxMapOptions, extract duplicate fragment logic, fixup DoubleMapActivity (#7507)

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

@@ -56,7 +56,7 @@ public class SupportMapFragmentActivity extends AppCompatActivity implements OnM
         .zoom(11)
         .build());
 
-      mapFragment = SupportMapFragment.newInstance(options);
+      mapFragment = SupportMapFragment.newInstance();
 
       transaction.add(R.id.fragment_container, mapFragment, "com.mapbox.map");
       transaction.commit();

platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/maplayout/DoubleMapActivity.java

@@ -47,13 +47,10 @@ public class DoubleMapActivity extends AppCompatActivity {
       actionBar.setDisplayShowHomeEnabled(true);
     }
 
-    Fragment mapFragment;
     if (savedInstanceState == null) {
       FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
-      transaction.add(R.id.fragment_container, mapFragment = new DoubleMapFragment(), TAG_FRAGMENT);
+      transaction.add(R.id.fragment_container, new DoubleMapFragment(), TAG_FRAGMENT);
       transaction.commit();
-    } else {
-      mapFragment = (DoubleMapFragment) getSupportFragmentManager().findFragmentByTag(TAG_FRAGMENT);
     }
   }
 
@@ -150,6 +147,13 @@ public class DoubleMapActivity extends AppCompatActivity {
       mapViewMini.onResume();
     }
 
+    @Override
+    public void onStart() {
+      super.onStart();
+      mapView.onStart();
+      mapViewMini.onStart();
+    }
+
     @Override
     public void onPause() {
       super.onPause();
@@ -157,6 +161,13 @@ public class DoubleMapActivity extends AppCompatActivity {
       mapViewMini.onPause();
     }
 
+    @Override
+    public void onStop() {
+      super.onStop();
+      mapView.onStop();
+      mapViewMini.onStop();
+    }
+
     @Override
     public void onDestroy() {
       super.onDestroy();