Fix regression of infinite loader in news/blog

app/src/main/java/app/insti/fragment/NewsFragment.java

@@ -57,6 +57,6 @@ public class NewsFragment extends RecyclerViewFragment<NewsArticle, NewsAdapter>
 
     @Override
     Call<List<NewsArticle>> getCall(RetrofitInterface retrofitInterface, String sessionIDHeader) {
-        return retrofitInterface.getNews(sessionIDHeader, 0, 20, searchQuery);
+        return retrofitInterface.getNews(sessionIDHeader, getPostCount(), 20, searchQuery);
     }
 }

app/src/main/java/app/insti/fragment/PlacementBlogFragment.java

@@ -74,6 +74,6 @@ public class PlacementBlogFragment extends RecyclerViewFragment<PlacementBlogPos
 
     @Override
     Call<List<PlacementBlogPost>> getCall(RetrofitInterface retrofitInterface, String sessionIDHeader) {
-        return retrofitInterface.getPlacementBlogFeed(sessionIDHeader, 0, 20, searchQuery);
+        return retrofitInterface.getPlacementBlogFeed(sessionIDHeader, getPostCount(), 20, searchQuery);
     }
 }

app/src/main/java/app/insti/fragment/RecyclerViewFragment.java

@@ -37,6 +37,7 @@ public abstract class RecyclerViewFragment<T extends Browsable, S extends Recycl
     protected Class<S> adapterType;
     protected SwipeRefreshLayout swipeRefreshLayout;
     protected String searchQuery;
+    private S adapter = null;
 
     protected void updateData() {
         String sessionIDHeader = ((MainActivity) getActivity()).getSessionIDHeader();
@@ -66,7 +67,7 @@ public abstract class RecyclerViewFragment<T extends Browsable, S extends Recycl
         if (getActivity() == null || getView() == null) return;
 
         try {
-            final S s = adapterType.getDeclaredConstructor(List.class, ItemClickListener.class).newInstance(result, new ItemClickListener() {
+            adapter = adapterType.getDeclaredConstructor(List.class, ItemClickListener.class).newInstance(result, new ItemClickListener() {
                 @Override
                 public void onItemClick(View v, int position) {
                     String link = result.get(position).getLink();
@@ -77,7 +78,7 @@ public abstract class RecyclerViewFragment<T extends Browsable, S extends Recycl
             getActivityBuffer().safely(new ActivityBuffer.IRunnable() {
                 @Override
                 public void run(Activity pActivity) {
-                    recyclerView.setAdapter(s);
+                    recyclerView.setAdapter(adapter);
                     recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
                     recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
                         boolean loading = false;
@@ -96,13 +97,13 @@ public abstract class RecyclerViewFragment<T extends Browsable, S extends Recycl
                                         public void onResponse(Call<List<T>> call, Response<List<T>> response) {
                                             if (response.isSuccessful()) {
                                                 loading = false;
-                                                List<T> posts = s.getPosts();
+                                                List<T> posts = adapter.getPosts();
                                                 posts.addAll(response.body());
                                                 if (response.body().size() == 0) {
                                                     showLoader = false;
                                                 }
-                                                s.setPosts(posts);
-                                                s.notifyDataSetChanged();
+                                                adapter.setPosts(posts);
+                                                adapter.notifyDataSetChanged();
                                             }
                                         }
 
@@ -123,6 +124,11 @@ public abstract class RecyclerViewFragment<T extends Browsable, S extends Recycl
         }
     }
 
+    protected int getPostCount() {
+        if (adapter == null) { return 0; }
+        return adapter.getPosts().size();
+    }
+
     private void openWebURL(String URL) {
         Intent browse = new Intent(Intent.ACTION_VIEW, Uri.parse(URL));
         startActivity(browse);

app/src/main/java/app/insti/fragment/TrainingBlogFragment.java

@@ -74,6 +74,6 @@ public class TrainingBlogFragment extends RecyclerViewFragment<TrainingBlogPost,
 
     @Override
     Call<List<TrainingBlogPost>> getCall(RetrofitInterface retrofitInterface, String sessionIDHeader) {
-        return retrofitInterface.getTrainingBlogFeed(sessionIDHeader, 0, 20, searchQuery);
+        return retrofitInterface.getTrainingBlogFeed(sessionIDHeader, getPostCount(), 20, searchQuery);
     }
 }