hopefully katarameno fix

app/src/main/java/gr/thmmy/mthmmy/activities/board/BoardActivity.java

@@ -156,7 +156,7 @@ public class BoardActivity extends BaseActivity implements BoardAdapter.OnLoadMo
 
     @Override
     public void onLoadMore() {
-        if (pagesLoaded < numberOfPages) {
+        if (pagesLoaded < numberOfPages && parsedTopics.get(parsedTopics.size() - 1) != null) {
             parsedTopics.add(null);
             boardAdapter.notifyItemInserted(parsedSubBoards.size() + parsedTopics.size());
 
@@ -185,6 +185,9 @@ public class BoardActivity extends BaseActivity implements BoardAdapter.OnLoadMo
      * parameter!</p>
      */
     private class BoardTask extends ParseTask {
+        ArrayList<Board> tempSubboards = new ArrayList<>();
+        ArrayList<Topic> tempTopics = new ArrayList<>();
+
         @Override
         protected void onPreExecute() {
             if (!isLoadingMore) progressBar.setVisibility(ProgressBar.VISIBLE);
@@ -195,10 +198,6 @@ public class BoardActivity extends BaseActivity implements BoardAdapter.OnLoadMo
         public void parse(Document boardPage) throws ParseException {
             parsedTitle = boardPage.select("div.nav a.nav").last().text();
 
-            //Removes loading item
-            if (isLoadingMore) {
-                if (parsedTopics.size() > 0) parsedTopics.remove(parsedTopics.size() - 1);
-            }
             //Finds number of pages
             if (numberOfPages == -1) {
                 numberOfPages = 1;
@@ -254,7 +253,7 @@ public class BoardActivity extends BaseActivity implements BoardAdapter.OnLoadMo
                                     }
                                 }
                             }
-                            parsedSubBoards.add(new Board(pUrl, pTitle, pMods, pStats, pLastPost, pLastPostUrl));
+                            tempSubboards.add(new Board(pUrl, pTitle, pMods, pStats, pLastPost, pLastPostUrl));
                         }
                     }
                 }
@@ -293,7 +292,7 @@ public class BoardActivity extends BaseActivity implements BoardAdapter.OnLoadMo
                                 Timber.wtf("Board parsing about to fail. pLastPost came with: %s", pLastPost);
                             }
                             pLastPostUrl = topicColumns.last().select("a:has(img)").first().attr("href");
-                            parsedTopics.add(new Topic(pTopicUrl, pSubject, pStartedBy, pLastPost, pLastPostUrl,
+                            tempTopics.add(new Topic(pTopicUrl, pSubject, pStartedBy, pLastPost, pLastPostUrl,
                                     pStats, pLocked, pSticky, pUnread));
                         }
                     }
@@ -304,6 +303,7 @@ public class BoardActivity extends BaseActivity implements BoardAdapter.OnLoadMo
         @Override
         protected void postExecution(ResultCode result) {
             //TODO if (result == ResultCode.SUCCESS)...
+            if (result == ResultCode.SUCCESS) {
                 if (boardTitle == null || Objects.equals(boardTitle, "")
                         || !Objects.equals(boardTitle, parsedTitle)) {
                     boardTitle = parsedTitle;
@@ -311,11 +311,23 @@ public class BoardActivity extends BaseActivity implements BoardAdapter.OnLoadMo
                     thisPageBookmark = new Bookmark(boardTitle, ThmmyPage.getBoardId(boardUrl), false);
                 }
 
+                //Removes loading item
+                if (isLoadingMore) {
+                    if (parsedTopics.size() > 0) parsedTopics.remove(parsedTopics.size() - 1);
+                }
+
+                parsedTopics.clear();
+                parsedSubBoards.clear();
+                parsedTopics.addAll(tempTopics);
+                parsedSubBoards.addAll(tempSubboards);
+                boardAdapter.notifyDataSetChanged();
+
                 //Parse was successful
                 ++pagesLoaded;
                 if (newTopicFAB.getVisibility() != View.GONE) newTopicFAB.setEnabled(true);
+            }
+
             progressBar.setVisibility(ProgressBar.INVISIBLE);
-            boardAdapter.notifyDataSetChanged();
             isLoadingMore = false;
         }
     }