added loader in bottom and stop loader on last post

app/src/main/java/app/insti/adapter/PlacementBlogAdapter.java

@@ -2,9 +2,11 @@ package app.insti.adapter;
 
 import android.content.Context;
 import android.support.v7.widget.RecyclerView;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.ProgressBar;
 import android.widget.TextView;
 
 import java.text.DateFormat;
@@ -17,9 +19,12 @@ import java.util.Locale;
 import app.insti.ItemClickListener;
 import app.insti.R;
 import app.insti.data.PlacementBlogPost;
+import app.insti.fragment.PlacementBlogFragment;
 import ru.noties.markwon.Markwon;
 
-public class PlacementBlogAdapter extends RecyclerView.Adapter<PlacementBlogAdapter.ViewHolder> {
+public class PlacementBlogAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
+    private final int VIEW_ITEM = 1;
+    private final int VIEW_PROG = 0;
     public List<PlacementBlogPost> getPosts() {
         return posts;
     }
@@ -38,45 +43,65 @@ public class PlacementBlogAdapter extends RecyclerView.Adapter<PlacementBlogAdap
     }
 
     @Override
-    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
-        context = parent.getContext();
-        LayoutInflater inflater = LayoutInflater.from(context);
-        View postView = inflater.inflate(R.layout.blog_post_card, parent, false);
-
-        final PlacementBlogAdapter.ViewHolder postViewHolder = new PlacementBlogAdapter.ViewHolder(postView);
-        postView.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                itemClickListener.onItemClick(v, postViewHolder.getAdapterPosition());
-            }
-        });
-        return postViewHolder;
+    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        if(viewType==VIEW_ITEM){
+            context = parent.getContext();
+            LayoutInflater inflater = LayoutInflater.from(context);
+            View postView = inflater.inflate(R.layout.blog_post_card, parent, false);
+
+            final PlacementBlogAdapter.ViewHolder postViewHolder = new PlacementBlogAdapter.ViewHolder(postView);
+            postView.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    itemClickListener.onItemClick(v, postViewHolder.getAdapterPosition());
+                }
+            });
+            return postViewHolder;
+        }
+        else{
+            LayoutInflater inflater=LayoutInflater.from(context);
+            View loadView=inflater.inflate(R.layout.blog_load_item,parent,false);
+            final PlacementBlogAdapter.ViewHolder postViewHolder = new PlacementBlogAdapter.ViewHolder(loadView);
+            return new PlacementBlogAdapter.ProgressViewHolder(loadView);
+        }
     }
-
     @Override
-    public void onBindViewHolder(ViewHolder holder, int position) {
-        PlacementBlogPost post = posts.get(position);
-        Markwon.setMarkdown(holder.postTitle, post.getTitle());
-
-        Date publishedDate = post.getPublished();
-        Calendar calendar = Calendar.getInstance();
-        calendar.setTime(publishedDate);
-        DateFormat displayFormat;
-        if (calendar.get(Calendar.YEAR) == Calendar.getInstance().get(Calendar.YEAR)) {
-            displayFormat = new SimpleDateFormat("EEE, MMM d, HH:mm", Locale.US);
-        } else {
-            displayFormat = new SimpleDateFormat("EEE, MMM d, ''yy, HH:mm", Locale.US);
-        }
-        holder.postPublished.setText(displayFormat.format(publishedDate));
-
-        Markwon.setMarkdown(holder.postContent, post.getContent());
+    public int getItemViewType(int position) {
+        Log.d("position", String.valueOf(position));
+        return posts.size()> position ? VIEW_ITEM : VIEW_PROG;
     }
-
     @Override
     public int getItemCount() {
-        return posts.size();
+        return PlacementBlogFragment.showLoader? (posts.size()+1):posts.size();
     }
 
+
+    @Override
+    public void onBindViewHolder(RecyclerView.ViewHolder recycleholder, int position) {
+        if(recycleholder instanceof ViewHolder){
+            ViewHolder holder=(ViewHolder)recycleholder;
+            PlacementBlogPost post = posts.get(position);
+            Markwon.setMarkdown(holder.postTitle, post.getTitle());
+
+            Date publishedDate = post.getPublished();
+            Calendar calendar = Calendar.getInstance();
+            calendar.setTime(publishedDate);
+            DateFormat displayFormat;
+            if (calendar.get(Calendar.YEAR) == Calendar.getInstance().get(Calendar.YEAR)) {
+                displayFormat = new SimpleDateFormat("EEE, MMM d, HH:mm", Locale.US);
+            } else {
+                displayFormat = new SimpleDateFormat("EEE, MMM d, ''yy, HH:mm", Locale.US);
+            }
+            holder.postPublished.setText(displayFormat.format(publishedDate));
+
+            Markwon.setMarkdown(holder.postContent, post.getContent());
+        }
+        else{
+            ((ProgressViewHolder)recycleholder).progressBar.setIndeterminate(true);
+        }
+    }
+
+
     public class ViewHolder extends RecyclerView.ViewHolder {
         private TextView postTitle;
         private TextView postPublished;
@@ -90,4 +115,12 @@ public class PlacementBlogAdapter extends RecyclerView.Adapter<PlacementBlogAdap
             postContent = (TextView) itemView.findViewById(R.id.post_content);
         }
     }
+    public static class ProgressViewHolder extends RecyclerView.ViewHolder {
+        public ProgressBar progressBar;
+        public ProgressViewHolder(View v) {
+            super(v);
+            progressBar = (ProgressBar)v.findViewById(R.id.blog_load_item);
+        }
+    }
+
 }

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

@@ -44,6 +44,7 @@ public class PlacementBlogFragment extends BaseFragment {
     private SwipeRefreshLayout feedSwipeRefreshLayout;
     private AppDatabase appDatabase;
     private boolean freshBlogDisplayed = false;
+    public static  boolean showLoader=true;
 
 
     public PlacementBlogFragment() {
@@ -129,15 +130,21 @@ public class PlacementBlogFragment extends BaseFragment {
                                 LinearLayoutManager layoutManager= (LinearLayoutManager) placementFeedRecyclerView.getLayoutManager();
                                 if(((layoutManager.getChildCount()+layoutManager.findFirstVisibleItemPosition())>(layoutManager.getItemCount()-5))&&(!loading)){
                                     loading=true;
+                                    View v=getActivity().findViewById(R.id.placement_feed_swipe_refresh_layout);
                                     RetrofitInterface retrofitInterface = ServiceGenerator.createService(RetrofitInterface.class);
                                     retrofitInterface.getPlacementBlogFeed("sessionid=" +getArguments().getString(Constants.SESSION_ID),layoutManager.getItemCount(),10).enqueue(new Callback<List<PlacementBlogPost>>() {
                                         @Override
                                         public void onResponse(Call<List<PlacementBlogPost>> call, Response<List<PlacementBlogPost>> response) {
+
                                             loading=false;
                                             List<PlacementBlogPost> blogPosts= (ArrayList<PlacementBlogPost>) placementBlogAdapter.getPosts();
                                             blogPosts.addAll(response.body());
+                                            if(response.body().size()==0){
+                                                showLoader=false;
+                                            }
                                             placementBlogAdapter.setPosts(blogPosts);
                                             placementBlogAdapter.notifyDataSetChanged();
+//                                            new updateDatabase().execute(blogPosts);
                                         }
 
                                         @Override

app/src/main/res/layout/blog_load_item.xml

+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical" android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+    <ProgressBar
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:indeterminate="true"
+        android:id="@+id/blog_load_item"
+        android:layout_gravity="center_horizontal"
+        android:layout_margin="@dimen/activity_vertical_margin"/>
+</LinearLayout>
\ No newline at end of file