Rename some classes and layout resources. Feature added: view posts in ViewSubredditDetailActivity.

app/src/main/java/ml/docilealligator/infinityforreddit/FetchComment.java

@@ -28,7 +28,7 @@ class FetchComment {
     void queryComment(FetchCommentListener fetchCommentListener) {
         mFetchCommentListener = fetchCommentListener;
 
-        Uri uri = Uri.parse(RedditUtils.getQueryCommentUri(subredditName, article))
+        Uri uri = Uri.parse(RedditUtils.getQueryCommentUrl(subredditName, article))
                 .buildUpon().appendQueryParameter(RedditUtils.RAW_JSON_KEY, RedditUtils.RAW_JSON_VALUE)
                 .build();
 

app/src/main/java/ml/docilealligator/infinityforreddit/FetchSubredditData.java

@@ -23,7 +23,7 @@ class FetchSubredditData {
 
     void querySubredditData(FetchSubredditDataListener fetchSubredditDataListener) {
         mFetchSubredditDataListener = fetchSubredditDataListener;
-        StringRequest commentRequest = new StringRequest(Request.Method.GET, RedditUtils.getQuerySubredditDataUri(subredditName), new Response.Listener<String>() {
+        StringRequest commentRequest = new StringRequest(Request.Method.GET, RedditUtils.getQuerySubredditDataUrl(subredditName), new Response.Listener<String>() {
             @Override
             public void onResponse(String response) {
                 mFetchSubredditDataListener.onFetchSubredditDataSuccess(response);

app/src/main/java/ml/docilealligator/infinityforreddit/MainActivity.java

@@ -5,11 +5,11 @@ import android.arch.lifecycle.ViewModelProviders;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
+import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentTransaction;
 import android.support.v4.view.GravityCompat;
 import android.support.v4.widget.DrawerLayout;
 import android.support.v7.app.ActionBarDrawerToggle;
@@ -79,9 +79,15 @@ public class MainActivity extends AppCompatActivity {
             startActivity(loginIntent);
         } else {
             if(savedInstanceState == null) {
-                FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
+                mFragment = new PostFragment();
-                mFragment = new BestPostFragment();
+                Uri uri = Uri.parse(RedditUtils.OAUTH_API_BASE_URI + RedditUtils.BEST_POST_SUFFIX)
-                fragmentTransaction.replace(R.id.frame_layout_content_main, mFragment).commit();
+                        .buildUpon().appendQueryParameter(RedditUtils.RAW_JSON_KEY, RedditUtils.RAW_JSON_VALUE)
+                        .build();
+                Bundle bundle = new Bundle();
+                bundle.putString(PostFragment.QUERY_POST_URL_KEY, uri.toString());
+                bundle.putBoolean(PostFragment.IS_BEST_POST_KEY, true);
+                mFragment.setArguments(bundle);
+                getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout_content_main, mFragment).commit();
             } else {
                 mFragment = getSupportFragmentManager().getFragment(savedInstanceState, "outStateFragment");
                 getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout_content_main, mFragment).commit();

app/src/main/java/ml/docilealligator/infinityforreddit/ParsePost.java

@@ -32,7 +32,7 @@ class ParsePost {
         mParseBetPostListener = parsePostListener;
     }
 
-    void parseBestPost(String response, ArrayList<PostData> postData) {
+    void parsePost(String response, ArrayList<PostData> postData) {
         new ParsePostDataAsyncTask(response, postData).execute();
     }
 

app/src/main/java/ml/docilealligator/infinityforreddit/PostFragment.java

@@ -1,16 +1,16 @@
 package ml.docilealligator.infinityforreddit;
 
 
-import android.support.v4.app.Fragment;
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
 import android.net.Uri;
 import android.os.Bundle;
+import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.design.widget.CoordinatorLayout;
-import android.support.design.widget.FloatingActionButton;
 import android.support.design.widget.Snackbar;
+import android.support.v4.app.Fragment;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.util.Log;
@@ -35,10 +35,13 @@ import java.util.Map;
 /**
  * A simple {@link Fragment} subclass.
  */
-public class BestPostFragment extends Fragment {
+public class PostFragment extends Fragment {
+
+    static final String QUERY_POST_URL_KEY = "QPUK";
+    static final String IS_BEST_POST_KEY = "IBPK";
 
     private CoordinatorLayout mCoordinatorLayout;
-    private RecyclerView mBestPostRecyclerView;
+    private RecyclerView mPostRecyclerView;
     private LinearLayoutManager mLinearLayoutManager;
     private ProgressBar mProgressBar;
     private ArrayList<PostData> mPostData;
@@ -46,7 +49,9 @@ public class BestPostFragment extends Fragment {
     private PaginationSynchronizer mPaginationSynchronizer;
     private PostRecyclerViewAdapter mAdapter;
 
-    private String bestPostDataParcelableState = "BPDPS";
+    private boolean mIsBestPost;
+    private String mQueryPostUrl;
+    private String PostDataParcelableState = "BPDPS";
     private String lastItemState = "LIS";
     private String paginationSynchronizerState = "PSS";
 
@@ -55,7 +60,7 @@ public class BestPostFragment extends Fragment {
     private RequestQueue mAcquireAccessTokenRequestQueue;
     private RequestQueue mVoteThingRequestQueue;
 
-    public BestPostFragment() {
+    public PostFragment() {
         // Required empty public constructor
     }
 
@@ -63,22 +68,29 @@ public class BestPostFragment extends Fragment {
     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
         if(savedInstanceState != null) {
-            if(savedInstanceState.containsKey(bestPostDataParcelableState)) {
+            if(savedInstanceState.containsKey(PostDataParcelableState)) {
-                mPostData = savedInstanceState.getParcelableArrayList(bestPostDataParcelableState);
+                mPostData = savedInstanceState.getParcelableArrayList(PostDataParcelableState);
                 mLastItem = savedInstanceState.getString(lastItemState);
                 mAdapter = new PostRecyclerViewAdapter(getActivity(), mPostData, mPaginationSynchronizer, mVoteThingRequestQueue, mAcquireAccessTokenRequestQueue);
-                mBestPostRecyclerView.setAdapter(mAdapter);
+                mPostRecyclerView.setAdapter(mAdapter);
-                mBestPostRecyclerView.addOnScrollListener(new PostPaginationScrollListener(getActivity(), mLinearLayoutManager, mAdapter, mLastItem, mPostData, mPaginationSynchronizer,
+                mPostRecyclerView.addOnScrollListener(new PostPaginationScrollListener(
-                        mAcquireAccessTokenRequestQueue, mPaginationSynchronizer.isLoading(), mPaginationSynchronizer.isLoadSuccess()));
+                        getActivity(), mLinearLayoutManager, mAdapter, mLastItem, mPostData,
+                        mPaginationSynchronizer, mAcquireAccessTokenRequestQueue,
+                        mQueryPostUrl, mIsBestPost,
+                        mPaginationSynchronizer.isLoading(), mPaginationSynchronizer.isLoadSuccess()));
                 mProgressBar.setVisibility(View.GONE);
             } else {
-                queryBestPost(1);
+                if(mIsBestPost) {
+                    queryBestPost(mQueryPostUrl, 1);
+                } else {
+                    queryPost(mQueryPostUrl, 1);
+                }
             }
         }
     }
 
     @Override
-    public void onSaveInstanceState(Bundle outState) {
+    public void onSaveInstanceState(@NonNull Bundle outState) {
         super.onSaveInstanceState(outState);
 
         if(mRequestQueue != null) {
@@ -98,7 +110,7 @@ public class BestPostFragment extends Fragment {
         }
 
         if(mPostData != null) {
-            outState.putParcelableArrayList(bestPostDataParcelableState, mPostData);
+            outState.putParcelableArrayList(PostDataParcelableState, mPostData);
             outState.putString(lastItemState, mLastItem);
             outState.putParcelable(paginationSynchronizerState, mPaginationSynchronizer);
         }
@@ -116,30 +128,37 @@ public class BestPostFragment extends Fragment {
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
         // Inflate the layout for this fragment
-        View rootView = inflater.inflate(R.layout.fragment_best_post, container, false);
+        View rootView = inflater.inflate(R.layout.fragment_post, container, false);
-        mCoordinatorLayout = rootView.findViewById(R.id.coordinator_layout_best_post_fragment);
+        mCoordinatorLayout = rootView.findViewById(R.id.coordinator_layout_post_fragment);
-        mBestPostRecyclerView = rootView.findViewById(R.id.recycler_view_best_post_fragment);
+        mPostRecyclerView = rootView.findViewById(R.id.recycler_view_post_fragment);
         mLinearLayoutManager = new LinearLayoutManager(getActivity());
-        mBestPostRecyclerView.setLayoutManager(mLinearLayoutManager);
+        mPostRecyclerView.setLayoutManager(mLinearLayoutManager);
-        mProgressBar = rootView.findViewById(R.id.progress_bar_best_post_fragment);
+        mProgressBar = rootView.findViewById(R.id.progress_bar_post_fragment);
-        FloatingActionButton fab = rootView.findViewById(R.id.fab_best_post_fragment);
+        /*FloatingActionButton fab = rootView.findViewById(R.id.fab_post_fragment);
         fab.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
                 Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                         .setAction("Action", null).show();
             }
-        });
+        });*/
 
         mRequestQueue = Volley.newRequestQueue(getActivity());
         mAcquireAccessTokenRequestQueue = Volley.newRequestQueue(getActivity());
         mVoteThingRequestQueue = Volley.newRequestQueue(getActivity());
 
+        mIsBestPost = getArguments().getBoolean(IS_BEST_POST_KEY);
+        mQueryPostUrl = getArguments().getString(QUERY_POST_URL_KEY);
+
         if(savedInstanceState != null && savedInstanceState.getParcelable(paginationSynchronizerState) != null) {
             mPaginationSynchronizer = savedInstanceState.getParcelable(paginationSynchronizerState);
         } else {
             mPaginationSynchronizer = new PaginationSynchronizer();
-            queryBestPost(1);
+            if(mIsBestPost) {
+                queryBestPost(mQueryPostUrl, 1);
+            } else {
+                queryPost(mQueryPostUrl, 1);
+            }
         }
 
         LastItemSynchronizer lastItemSynchronizer = new LastItemSynchronizer() {
@@ -161,7 +180,7 @@ public class BestPostFragment extends Fragment {
         return rootView;
     }
 
-    private void queryBestPost(final int refreshTime) {
+    private void queryBestPost(final String queryPostUrl, final int refreshTime) {
         if(refreshTime < 0) {
             showErrorSnackbar();
             return;
@@ -169,11 +188,11 @@ public class BestPostFragment extends Fragment {
 
         mProgressBar.setVisibility(View.VISIBLE);
 
-        Uri uri = Uri.parse(RedditUtils.OAUTH_API_BASE_URI + RedditUtils.BEST_POST_SUFFIX)
+        /*Uri uri = Uri.parse(RedditUtils.OAUTH_API_BASE_URI + RedditUtils.BEST_POST_SUFFIX)
                 .buildUpon().appendQueryParameter(RedditUtils.RAW_JSON_KEY, RedditUtils.RAW_JSON_VALUE)
-                .build();
+                .build();*/
 
-        StringRequest bestPostRequest = new StringRequest(Request.Method.GET, uri.toString(), new Response.Listener<String>() {
+        StringRequest postRequest = new StringRequest(Request.Method.GET, mQueryPostUrl, new Response.Listener<String>() {
             @Override
             public void onResponse(String response) {
                 if(getActivity() != null) {
@@ -183,24 +202,27 @@ public class BestPostFragment extends Fragment {
                     //new ParsePostDataAsyncTask(response, accessToken).execute();
                     new ParsePost(getActivity(), new ParsePost.ParsePostListener() {
                         @Override
-                        public void onParsePostSuccess(ArrayList<PostData> bestPostData, String lastItem) {
+                        public void onParsePostSuccess(ArrayList<PostData> postData, String lastItem) {
-                            mPostData = bestPostData;
+                            mPostData = postData;
                             mLastItem = lastItem;
-                            mAdapter = new PostRecyclerViewAdapter(getActivity(), bestPostData, mPaginationSynchronizer, mVoteThingRequestQueue, mAcquireAccessTokenRequestQueue);
+                            mAdapter = new PostRecyclerViewAdapter(getActivity(), postData, mPaginationSynchronizer, mVoteThingRequestQueue, mAcquireAccessTokenRequestQueue);
 
-                            mBestPostRecyclerView.setAdapter(mAdapter);
+                            mPostRecyclerView.setAdapter(mAdapter);
-                            mBestPostRecyclerView.addOnScrollListener(new PostPaginationScrollListener(getActivity(), mLinearLayoutManager, mAdapter, lastItem, bestPostData, mPaginationSynchronizer,
+                            mPostRecyclerView.addOnScrollListener(new PostPaginationScrollListener(
-                                    mAcquireAccessTokenRequestQueue, mPaginationSynchronizer.isLoading(), mPaginationSynchronizer.isLoadSuccess()));
+                                    getActivity(), mLinearLayoutManager, mAdapter, lastItem, postData,
+                                    mPaginationSynchronizer, mAcquireAccessTokenRequestQueue,
+                                    mQueryPostUrl, mIsBestPost,
+                                    mPaginationSynchronizer.isLoading(), mPaginationSynchronizer.isLoadSuccess()));
                             mProgressBar.setVisibility(View.GONE);
                         }
 
                         @Override
                         public void onParsePostFail() {
                             Toast.makeText(getActivity(), "Error parsing data", Toast.LENGTH_SHORT).show();
-                            Log.i("Best post fetch error", "Error parsing data");
+                            Log.i("Post fetch error", "Error parsing data");
                             mProgressBar.setVisibility(View.GONE);
                         }
-                    }).parseBestPost(response, new ArrayList<PostData>());
+                    }).parsePost(response, new ArrayList<PostData>());
                 }
             }
         }, new Response.ErrorListener() {
@@ -213,14 +235,14 @@ public class BestPostFragment extends Fragment {
                             new AcquireAccessToken.AcquireAccessTokenListener() {
                                 @Override
                                 public void onAcquireAccessTokenSuccess() {
-                                    queryBestPost(refreshTime - 1);
+                                    queryBestPost(queryPostUrl, refreshTime - 1);
                                 }
 
                                 @Override
                                 public void onAcquireAccessTokenFail() {}
                             });
                 } else {
-                    Log.i("best post fetch error", error.toString());
+                    Log.i("Post fetch error", error.toString());
                     showErrorSnackbar();
                 }
             }
@@ -231,17 +253,92 @@ public class BestPostFragment extends Fragment {
                 return RedditUtils.getOAuthHeader(accessToken);
             }
         };
-        bestPostRequest.setTag(BestPostFragment.class);
+        postRequest.setTag(PostFragment.class);
-        mRequestQueue.add(bestPostRequest);
+        mRequestQueue.add(postRequest);
+    }
+
+    private void queryPost(final String queryPostUrl, final int refreshTime) {
+        if(refreshTime < 0) {
+            showErrorSnackbar();
+            return;
+        }
+
+        mProgressBar.setVisibility(View.VISIBLE);
+
+        Uri uri = Uri.parse(RedditUtils.OAUTH_API_BASE_URI + RedditUtils.BEST_POST_SUFFIX)
+                .buildUpon().appendQueryParameter(RedditUtils.RAW_JSON_KEY, RedditUtils.RAW_JSON_VALUE)
+                .build();
+
+        StringRequest postRequest = new StringRequest(Request.Method.GET, queryPostUrl, new Response.Listener<String>() {
+            @Override
+            public void onResponse(String response) {
+                if(getActivity() != null) {
+                    ClipboardManager clipboard = (ClipboardManager) getActivity().getSystemService(Context.CLIPBOARD_SERVICE);
+                    ClipData clip = ClipData.newPlainText("response", response);
+                    clipboard.setPrimaryClip(clip);
+                    //new ParsePostDataAsyncTask(response, accessToken).execute();
+                    new ParsePost(getActivity(), new ParsePost.ParsePostListener() {
+                        @Override
+                        public void onParsePostSuccess(ArrayList<PostData> postData, String lastItem) {
+                            mPostData = postData;
+                            mLastItem = lastItem;
+                            mAdapter = new PostRecyclerViewAdapter(getActivity(), postData, mPaginationSynchronizer, mVoteThingRequestQueue, mAcquireAccessTokenRequestQueue);
+
+                            mPostRecyclerView.setAdapter(mAdapter);
+                            mPostRecyclerView.addOnScrollListener(new PostPaginationScrollListener(
+                                    getActivity(), mLinearLayoutManager, mAdapter, lastItem, postData,
+                                    mPaginationSynchronizer, mAcquireAccessTokenRequestQueue,
+                                    mQueryPostUrl, mIsBestPost,
+                                    mPaginationSynchronizer.isLoading(), mPaginationSynchronizer.isLoadSuccess()));
+                            mProgressBar.setVisibility(View.GONE);
+                        }
+
+                        @Override
+                        public void onParsePostFail() {
+                            Toast.makeText(getActivity(), "Error parsing data", Toast.LENGTH_SHORT).show();
+                            Log.i("Post fetch error", "Error parsing data");
+                            mProgressBar.setVisibility(View.GONE);
+                        }
+                    }).parsePost(response, new ArrayList<PostData>());
+                }
+            }
+        }, new Response.ErrorListener() {
+            @Override
+            public void onErrorResponse(VolleyError error) {
+                if (error instanceof AuthFailureError) {
+                    // Error indicating that there was an Authentication Failure while performing the request
+                    // Access token expired
+                    new AcquireAccessToken(getActivity()).refreshAccessToken(mAcquireAccessTokenRequestQueue,
+                            new AcquireAccessToken.AcquireAccessTokenListener() {
+                                @Override
+                                public void onAcquireAccessTokenSuccess() {
+                                    queryPost(queryPostUrl, refreshTime - 1);
+                                }
+
+                                @Override
+                                public void onAcquireAccessTokenFail() {}
+                            });
+                } else {
+                    Log.i("Post fetch error", error.toString());
+                    showErrorSnackbar();
+                }
+            }
+        });
+        postRequest.setTag(PostFragment.class);
+        mRequestQueue.add(postRequest);
     }
 
     private void showErrorSnackbar() {
         mProgressBar.setVisibility(View.GONE);
-        Snackbar snackbar = Snackbar.make(mCoordinatorLayout, "Error getting best post", Snackbar.LENGTH_INDEFINITE);
+        Snackbar snackbar = Snackbar.make(mCoordinatorLayout, "Error getting post", Snackbar.LENGTH_INDEFINITE);
         snackbar.setAction(R.string.retry, new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                queryBestPost(1);
+                if(mIsBestPost) {
+                    queryBestPost(mQueryPostUrl, 1);
+                } else {
+                    queryPost(mQueryPostUrl, 1);
+                }
             }
         });
         snackbar.show();

app/src/main/java/ml/docilealligator/infinityforreddit/PostPaginationScrollListener.java

@@ -4,6 +4,7 @@ import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
 import android.net.Uri;
+import android.support.annotation.NonNull;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.util.Log;
@@ -34,14 +35,18 @@ class PostPaginationScrollListener extends RecyclerView.OnScrollListener {
     private LastItemSynchronizer mLastItemSynchronizer;
     private PaginationRequestQueueSynchronizer mPaginationRequestQueueSynchronizer;
 
+    private String mQueryPostUrl;
+    private boolean isBestPost;
     private boolean isLoading;
     private boolean loadSuccess;
     private String mLastItem;
     private RequestQueue mRequestQueue;
     private RequestQueue mAcquireAccessTokenRequestQueue;
 
-    PostPaginationScrollListener(Context context, LinearLayoutManager layoutManager, PostRecyclerViewAdapter adapter, String lastItem, ArrayList<PostData> postData, PaginationSynchronizer paginationSynchronizer,
+    PostPaginationScrollListener(Context context, LinearLayoutManager layoutManager, PostRecyclerViewAdapter adapter,
-                                 RequestQueue acquireAccessTokenRequestQueue, boolean isLoading, boolean loadSuccess) {
+                                 String lastItem, ArrayList<PostData> postData, PaginationSynchronizer paginationSynchronizer,
+                                 RequestQueue acquireAccessTokenRequestQueue, final String queryPostUrl,
+                                 final boolean isBestPost, boolean isLoading, boolean loadSuccess) {
         if(context != null) {
             this.mContext = context;
             this.mLayoutManager = layoutManager;
@@ -50,6 +55,8 @@ class PostPaginationScrollListener extends RecyclerView.OnScrollListener {
             this.mPostData = postData;
             this.mPaginationSynchronizer = paginationSynchronizer;
             this.mAcquireAccessTokenRequestQueue = acquireAccessTokenRequestQueue;
+            this.mQueryPostUrl = queryPostUrl;
+            this.isBestPost = isBestPost;
             this.isLoading = isLoading;
             this.loadSuccess = loadSuccess;
 
@@ -58,7 +65,11 @@ class PostPaginationScrollListener extends RecyclerView.OnScrollListener {
             mPaginationRetryNotifier = new PaginationRetryNotifier() {
                 @Override
                 public void retry() {
-                    fetchBestPost(1);
+                    if(isBestPost) {
+                        fetchBestPost(queryPostUrl, 1);
+                    } else {
+                        fetchPost(queryPostUrl, 1);
+                    }
                 }
             };
             mPaginationSynchronizer.setPaginationRetryNotifier(mPaginationRetryNotifier);
@@ -69,7 +80,7 @@ class PostPaginationScrollListener extends RecyclerView.OnScrollListener {
     }
 
     @Override
-    public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
+    public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
         super.onScrolled(recyclerView, dx, dy);
         if(!isLoading && loadSuccess) {
             int visibleItemCount = mLayoutManager.getChildCount();
@@ -77,13 +88,17 @@ class PostPaginationScrollListener extends RecyclerView.OnScrollListener {
             int firstVisibleItemPosition = mLayoutManager.findFirstVisibleItemPosition();
 
             if((visibleItemCount + firstVisibleItemPosition >= totalItemCount) && firstVisibleItemPosition >= 0) {
-                fetchBestPost(1);
+                if(isBestPost) {
+                    fetchBestPost(mQueryPostUrl, 1);
+                } else {
+                    fetchPost(mQueryPostUrl, 1);
+                }
             }
         }
     }
 
 
-    private void fetchBestPost(final int refreshTime) {
+    private void fetchBestPost(final String queryPostUrl, final int refreshTime) {
         if(refreshTime < 0) {
             loadFailed();
             return;
@@ -93,9 +108,8 @@ class PostPaginationScrollListener extends RecyclerView.OnScrollListener {
         loadSuccess = false;
         mPaginationSynchronizer.setLoading(true);
 
-        Uri uri = Uri.parse(RedditUtils.OAUTH_API_BASE_URI + RedditUtils.BEST_POST_SUFFIX)
+        Uri uri = Uri.parse(queryPostUrl)
-                .buildUpon().appendQueryParameter(RedditUtils.AFTER_KEY, mLastItem)
+                .buildUpon().appendQueryParameter(RedditUtils.AFTER_KEY, mLastItem).build();
-                .appendQueryParameter(RedditUtils.RAW_JSON_KEY, RedditUtils.RAW_JSON_VALUE).build();
 
         StringRequest bestPostRequest = new StringRequest(Request.Method.GET,  uri.toString(), new Response.Listener<String>() {
             @Override
@@ -122,7 +136,7 @@ class PostPaginationScrollListener extends RecyclerView.OnScrollListener {
                         Log.i("Best post", "Error parsing data");
                         loadFailed();
                     }
-                }).parseBestPost(response, mPostData);
+                }).parsePost(response, mPostData);
             }
         }, new Response.ErrorListener() {
             @Override
@@ -133,7 +147,7 @@ class PostPaginationScrollListener extends RecyclerView.OnScrollListener {
                             new AcquireAccessToken.AcquireAccessTokenListener() {
                                 @Override
                                 public void onAcquireAccessTokenSuccess() {
-                                    fetchBestPost(refreshTime - 1);
+                                    fetchBestPost(queryPostUrl, refreshTime - 1);
                                 }
 
                                 @Override
@@ -157,6 +171,73 @@ class PostPaginationScrollListener extends RecyclerView.OnScrollListener {
         mRequestQueue.add(bestPostRequest);
     }
 
+    private void fetchPost(final String queryPostUrl, final int refreshTime) {
+        if(refreshTime < 0) {
+            loadFailed();
+            return;
+        }
+
+        isLoading = true;
+        loadSuccess = false;
+        mPaginationSynchronizer.setLoading(true);
+
+        Uri uri = Uri.parse(queryPostUrl)
+                .buildUpon().appendQueryParameter(RedditUtils.AFTER_KEY, mLastItem).build();
+
+        StringRequest bestPostRequest = new StringRequest(Request.Method.GET,  uri.toString(), new Response.Listener<String>() {
+            @Override
+            public void onResponse(String response) {
+                ClipboardManager clipboard = (ClipboardManager) mContext.getSystemService(Context.CLIPBOARD_SERVICE);
+                ClipData clip = ClipData.newPlainText("response", response);
+                clipboard.setPrimaryClip(clip);
+                new ParsePost(mContext, new ParsePost.ParsePostListener() {
+                    @Override
+                    public void onParsePostSuccess(ArrayList<PostData> bestPostData, String lastItem) {
+                        mAdapter.notifyDataSetChanged();
+                        mLastItem = lastItem;
+                        mLastItemSynchronizer.lastItemChanged(mLastItem);
+
+                        isLoading = false;
+                        loadSuccess = true;
+                        mPaginationSynchronizer.setLoading(false);
+                        mPaginationSynchronizer.setLoadingState(true);
+                    }
+
+                    @Override
+                    public void onParsePostFail() {
+                        Toast.makeText(mContext, "Error parsing data", Toast.LENGTH_SHORT).show();
+                        Log.i("Best post", "Error parsing data");
+                        loadFailed();
+                    }
+                }).parsePost(response, mPostData);
+            }
+        }, new Response.ErrorListener() {
+            @Override
+            public void onErrorResponse(VolleyError error) {
+                if (error instanceof AuthFailureError) {
+                    //Access token expired
+                    new AcquireAccessToken(mContext).refreshAccessToken(mAcquireAccessTokenRequestQueue,
+                            new AcquireAccessToken.AcquireAccessTokenListener() {
+                                @Override
+                                public void onAcquireAccessTokenSuccess() {
+                                    fetchPost(queryPostUrl, refreshTime - 1);
+                                }
+
+                                @Override
+                                public void onAcquireAccessTokenFail() {
+                                }
+                            });
+                } else {
+                    Toast.makeText(mContext, "Error getting best post", Toast.LENGTH_SHORT).show();
+                    Log.i("best post", error.toString());
+                    loadFailed();
+                }
+            }
+        });
+        bestPostRequest.setTag(PostPaginationScrollListener.class);
+        mRequestQueue.add(bestPostRequest);
+    }
+
     private void loadFailed() {
         isLoading = false;
         loadSuccess = false;

app/src/main/java/ml/docilealligator/infinityforreddit/PostRecyclerViewAdapter.java

@@ -77,7 +77,7 @@ class PostRecyclerViewAdapter extends RecyclerView.Adapter<RecyclerView.ViewHold
     @Override
     public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
         if(viewType == VIEW_TYPE_DATA) {
-            CardView cardView = (CardView) LayoutInflater.from(parent.getContext()).inflate(R.layout.item_best_post, parent, false);
+            CardView cardView = (CardView) LayoutInflater.from(parent.getContext()).inflate(R.layout.item_post, parent, false);
             return new DataViewHolder(cardView);
         } else {
             LinearLayout linearLayout = (LinearLayout) LayoutInflater.from(parent.getContext()).inflate(R.layout.item_footer_progress_bar, parent, false);

app/src/main/java/ml/docilealligator/infinityforreddit/RedditUtils.java

@@ -70,11 +70,15 @@ class RedditUtils {
         return params;
     }
 
-    static String getQueryCommentUri(String subredditName, String article) {
+    static String getQueryCommentUrl(String subredditName, String article) {
         return API_BASE_URI + "/" + subredditName + "/comments/" + article + ".json";
     }
 
-    static String getQuerySubredditDataUri(String subredditName) {
+    static String getQuerySubredditDataUrl(String subredditName) {
         return API_BASE_URI + "/r/" + subredditName + "/about.json";
     }
+
+    static String getQuerySubredditPostUrl(String subredditName) {
+        return API_BASE_URI + "/r/" + subredditName + ".json";
+    }
 }

app/src/main/java/ml/docilealligator/infinityforreddit/ViewSubredditDetailActivity.java

@@ -2,13 +2,13 @@ package ml.docilealligator.infinityforreddit;
 
 import android.arch.lifecycle.Observer;
 import android.arch.lifecycle.ViewModelProviders;
+import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.design.widget.AppBarLayout;
 import android.support.design.widget.CollapsingToolbarLayout;
 import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentTransaction;
 import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.Toolbar;
 import android.view.MenuItem;
@@ -27,6 +27,8 @@ public class ViewSubredditDetailActivity extends AppCompatActivity {
     static final String EXTRA_SUBREDDIT_NAME = "ESN";
     static final String EXTRA_SUBREDDIT_ID = "ESI";
 
+    private Fragment mFragment;
+
     private SubredditViewModel mSubredditViewModel;
 
     @Override
@@ -120,9 +122,20 @@ public class ViewSubredditDetailActivity extends AppCompatActivity {
             }
         });
 
-        FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
+        if(savedInstanceState == null) {
-        Fragment mFragment = new BestPostFragment();
+            mFragment = new PostFragment();
-        fragmentTransaction.replace(R.id.frame_layout_view_subreddit_detail_activity, mFragment).commit();
+            Uri uri = Uri.parse(RedditUtils.getQuerySubredditPostUrl(subredditName))
+                    .buildUpon().appendQueryParameter(RedditUtils.RAW_JSON_KEY, RedditUtils.RAW_JSON_VALUE)
+                    .build();
+            Bundle bundle = new Bundle();
+            bundle.putString(PostFragment.QUERY_POST_URL_KEY, uri.toString());
+            bundle.putBoolean(PostFragment.IS_BEST_POST_KEY, false);
+            mFragment.setArguments(bundle);
+            getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout_view_subreddit_detail_activity, mFragment).commit();
+        } else {
+            mFragment = getSupportFragmentManager().getFragment(savedInstanceState, "outStateFragment");
+            getSupportFragmentManager().beginTransaction().replace(R.id.frame_layout_view_subreddit_detail_activity, mFragment).commit();
+        }
     }
 
     @Override
@@ -135,6 +148,14 @@ public class ViewSubredditDetailActivity extends AppCompatActivity {
         return false;
     }
 
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        if(mFragment != null) {
+            getSupportFragmentManager().putFragment(outState, "outStateFragment", mFragment);
+        }
+    }
+
     private static class InsertSubredditDataAsyncTask extends AsyncTask<Void, Void, Void> {
 
         private final SubredditDao mSubredditDao;

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

@@ -4,6 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:id="@+id/coordinator_layout_view_subreddit_detail_activity"
     android:fitsSystemWindows="true"
     tools:context=".ViewSubredditDetailActivity">
 

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

@@ -3,26 +3,28 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:id="@+id/coordinator_layout_best_post_fragment"
+    android:id="@+id/coordinator_layout_post_fragment"
-    tools:context="ml.docilealligator.infinityforreddit.BestPostFragment">
+    tools:context="ml.docilealligator.infinityforreddit.PostFragment">
 
     <ProgressBar
-        android:id="@+id/progress_bar_best_post_fragment"
+        android:id="@+id/progress_bar_post_fragment"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:layout_marginBottom="16dp"
         android:layout_gravity="center" />
 
     <android.support.v7.widget.RecyclerView
-        android:id="@+id/recycler_view_best_post_fragment"
+        android:id="@+id/recycler_view_post_fragment"
         android:layout_width="match_parent"
         android:layout_height="match_parent" />
 
-    <android.support.design.widget.FloatingActionButton
+    <!--<android.support.design.widget.FloatingActionButton
-        android:id="@+id/fab_best_post_fragment"
+        android:id="@+id/fab_post_fragment"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="bottom|end"
         android:layout_margin="@dimen/fab_margin"
-        app:srcCompat="@drawable/baseline_add_white_24" />
+        app:srcCompat="@drawable/baseline_add_white_24" />-->
 
 </android.support.design.widget.CoordinatorLayout>

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

@@ -10,6 +10,7 @@
         android:id="@+id/progress_bar_footer_progress_bar_item"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
         android:layout_marginBottom="16dp"
         android:layout_gravity="center" />
 
@@ -17,6 +18,7 @@
         android:id="@+id/relative_layout_footer_progress_bar_item"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
         android:layout_marginBottom="16dp"
         android:layout_marginLeft="16dp"
         android:layout_marginStart="16dp"