Code cleanup

app/src/main/java/gr/thmmy/mthmmy/activities/AboutActivity.java

@@ -6,7 +6,6 @@ import android.support.design.widget.AppBarLayout;
 import android.support.design.widget.CoordinatorLayout;
 import android.support.v4.widget.DrawerLayout;
 import android.support.v7.app.AlertDialog;
-import android.support.v7.widget.Toolbar;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.webkit.WebView;
@@ -36,10 +35,10 @@ public class AboutActivity extends BaseActivity {
         String versionName = BuildConfig.VERSION_NAME;
 
         //Initialize appbar
-        appBar = (AppBarLayout) findViewById(R.id.appbar);
+        appBar = findViewById(R.id.appbar);
-        coordinatorLayout = (CoordinatorLayout) findViewById(R.id.main_content);
+        coordinatorLayout = findViewById(R.id.main_content);
         //Initialize toolbar
-        toolbar = (Toolbar) findViewById(R.id.toolbar);
+        toolbar = findViewById(R.id.toolbar);
         toolbar.setTitle(R.string.about);
         setSupportActionBar(toolbar);
         if (getSupportActionBar() != null) {
@@ -50,10 +49,10 @@ public class AboutActivity extends BaseActivity {
         createDrawer();
         drawer.setSelection(ABOUT_ID);
 
-        final ScrollView mainContent = (ScrollView) findViewById(R.id.scrollview);
+        final ScrollView mainContent = findViewById(R.id.scrollview);
-        trollGif = (FrameLayout) findViewById(R.id.trollPicFrame);
+        trollGif = findViewById(R.id.trollPicFrame);
 
-        TextView tv = (TextView) findViewById(R.id.version);
+        TextView tv = findViewById(R.id.version);
         if (tv != null)
             tv.setText(getString(R.string.version, versionName));
 

app/src/main/java/gr/thmmy/mthmmy/activities/BookmarkActivity.java

@@ -4,7 +4,6 @@ import android.content.Intent;
 import android.graphics.Typeface;
 import android.os.Build;
 import android.os.Bundle;
-import android.support.v7.widget.Toolbar;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.widget.LinearLayout;
@@ -34,7 +33,7 @@ public class BookmarkActivity extends BaseActivity {
         setContentView(R.layout.activity_bookmark);
 
         //Initialize toolbar
-        toolbar = (Toolbar) findViewById(R.id.toolbar);
+        toolbar = findViewById(R.id.toolbar);
         toolbar.setTitle("Bookmarks");
         setSupportActionBar(toolbar);
         if (getSupportActionBar() != null) {
@@ -45,7 +44,7 @@ public class BookmarkActivity extends BaseActivity {
         createDrawer();
         drawer.setSelection(BOOKMARKS_ID);
 
-        LinearLayout bookmarksLinearView = (LinearLayout) findViewById(R.id.bookmarks_container);
+        LinearLayout bookmarksLinearView = findViewById(R.id.bookmarks_container);
         LayoutInflater layoutInflater = getLayoutInflater();
 
         if(!getBoardsBookmarked().isEmpty()) {

app/src/main/java/gr/thmmy/mthmmy/activities/LoginActivity.java

@@ -42,10 +42,10 @@ public class LoginActivity extends BaseActivity {
         setContentView(R.layout.activity_login);
 
         //Variables initialization
-        inputUsername = (EditText) findViewById(R.id.username);
+        inputUsername = findViewById(R.id.username);
-        inputPassword = (EditText) findViewById(R.id.password);
+        inputPassword = findViewById(R.id.password);
-        btnLogin = (AppCompatButton) findViewById(R.id.btnLogin);
+        btnLogin = findViewById(R.id.btnLogin);
-        AppCompatButton btnGuest = (AppCompatButton) findViewById(R.id.btnContinueAsGuest);
+        AppCompatButton btnGuest = findViewById(R.id.btnContinueAsGuest);
 
         //Login button Click Event
         btnLogin.setOnClickListener(new View.OnClickListener() {
@@ -138,8 +138,8 @@ public class LoginActivity extends BaseActivity {
         protected void onPreExecute() { //Show a progress dialog until done
             btnLogin.setEnabled(false); //Login button shouldn't be pressed during this
 
-            spinner = (LinearLayout) findViewById(R.id.login_progress_bar);
+            spinner = findViewById(R.id.login_progress_bar);
-            loginContent = (ScrollView) findViewById(R.id.inner_scroll_view);
+            loginContent = findViewById(R.id.inner_scroll_view);
 
             View view = getCurrentFocus();
             if (view != null) {

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

@@ -7,7 +7,6 @@ import android.support.design.widget.FloatingActionButton;
 import android.support.v7.widget.DividerItemDecoration;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
-import android.support.v7.widget.Toolbar;
 import android.util.Log;
 import android.view.View;
 import android.widget.ImageButton;
@@ -76,7 +75,7 @@ public class BoardActivity extends BaseActivity implements BoardAdapter.OnLoadMo
         }
 
         //Initializes graphics
-        toolbar = (Toolbar) findViewById(R.id.toolbar);
+        toolbar = findViewById(R.id.toolbar);
         if (boardTitle != null && !Objects.equals(boardTitle, "")) toolbar.setTitle(boardTitle);
         else toolbar.setTitle("Board");
         setSupportActionBar(toolbar);
@@ -89,8 +88,8 @@ public class BoardActivity extends BaseActivity implements BoardAdapter.OnLoadMo
         setBoardBookmark((ImageButton) findViewById(R.id.bookmark));
         createDrawer();
 
-        progressBar = (MaterialProgressBar) findViewById(R.id.progressBar);
+        progressBar = findViewById(R.id.progressBar);
-        newTopicFAB = (FloatingActionButton) findViewById(R.id.board_fab);
+        newTopicFAB = findViewById(R.id.board_fab);
         newTopicFAB.setEnabled(false);
         newTopicFAB.hide();
         /*if (!sessionManager.isLoggedIn()) newTopicFAB.hide();
@@ -124,7 +123,7 @@ public class BoardActivity extends BaseActivity implements BoardAdapter.OnLoadMo
         }*/
 
         boardAdapter = new BoardAdapter(getApplicationContext(), parsedSubBoards, parsedTopics);
-        RecyclerView mainContent = (RecyclerView) findViewById(R.id.board_recycler_view);
+        RecyclerView mainContent = findViewById(R.id.board_recycler_view);
         mainContent.setAdapter(boardAdapter);
         final LinearLayoutManager layoutManager = new LinearLayoutManager(this);
         mainContent.setLayoutManager(layoutManager);

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

@@ -275,13 +275,13 @@ class BoardAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
 
         SubBoardViewHolder(View board) {
             super(board);
-            boardRow = (LinearLayout) board.findViewById(R.id.child_board_row);
+            boardRow = board.findViewById(R.id.child_board_row);
-            boardExpandable = (LinearLayout) board.findViewById(R.id.child_board_expandable);
+            boardExpandable = board.findViewById(R.id.child_board_expandable);
-            showHideExpandable = (ImageButton) board.findViewById(R.id.child_board_expand_collapse_button);
+            showHideExpandable = board.findViewById(R.id.child_board_expand_collapse_button);
-            boardTitle = (TextView) board.findViewById(R.id.child_board_title);
+            boardTitle = board.findViewById(R.id.child_board_title);
-            boardMods = (TextView) board.findViewById(R.id.child_board_mods);
+            boardMods = board.findViewById(R.id.child_board_mods);
-            boardStats = (TextView) board.findViewById(R.id.child_board_stats);
+            boardStats = board.findViewById(R.id.child_board_stats);
-            boardLastPost = (TextView) board.findViewById(R.id.child_board_last_post);
+            boardLastPost = board.findViewById(R.id.child_board_last_post);
         }
     }
 
@@ -292,13 +292,13 @@ class BoardAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
 
         TopicViewHolder(View topic) {
             super(topic);
-            topicRow = (LinearLayout) topic.findViewById(R.id.topic_row_linear);
+            topicRow = topic.findViewById(R.id.topic_row_linear);
-            topicExpandable = (LinearLayout) topic.findViewById(R.id.topic_expandable);
+            topicExpandable = topic.findViewById(R.id.topic_expandable);
-            showHideExpandable = (ImageButton) topic.findViewById(R.id.topic_expand_collapse_button);
+            showHideExpandable = topic.findViewById(R.id.topic_expand_collapse_button);
-            topicSubject = (TextView) topic.findViewById(R.id.topic_subject);
+            topicSubject = topic.findViewById(R.id.topic_subject);
-            topicStartedBy = (TextView) topic.findViewById(R.id.topic_started_by);
+            topicStartedBy = topic.findViewById(R.id.topic_started_by);
-            topicStats = (TextView) topic.findViewById(R.id.topic_stats);
+            topicStats = topic.findViewById(R.id.topic_stats);
-            topicLastPost = (TextView) topic.findViewById(R.id.topic_last_post);
+            topicLastPost = topic.findViewById(R.id.topic_last_post);
         }
     }
 
@@ -313,7 +313,7 @@ class BoardAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
 
         LoadingViewHolder(View itemView) {
             super(itemView);
-            progressBar = (MaterialProgressBar) itemView.findViewById(R.id.recycler_progress_bar);
+            progressBar = itemView.findViewById(R.id.recycler_progress_bar);
         }
     }
 }

app/src/main/java/gr/thmmy/mthmmy/activities/downloads/DownloadsActivity.java

@@ -7,7 +7,6 @@ import android.support.design.widget.FloatingActionButton;
 import android.support.v7.widget.DividerItemDecoration;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
-import android.support.v7.widget.Toolbar;
 import android.view.View;
 import android.widget.ProgressBar;
 import android.widget.Toast;
@@ -75,7 +74,7 @@ public class DownloadsActivity extends BaseActivity implements DownloadsAdapter.
         } else downloadsUrl = downloadsIndexUrl;
 
         //Initialize toolbar
-        toolbar = (Toolbar) findViewById(R.id.toolbar);
+        toolbar = findViewById(R.id.toolbar);
         if (downloadsTitle == null || Objects.equals(downloadsTitle, ""))
             toolbar.setTitle("Downloads");
         toolbar.setTitle(downloadsTitle);
@@ -88,9 +87,9 @@ public class DownloadsActivity extends BaseActivity implements DownloadsAdapter.
         createDrawer();
         drawer.setSelection(DOWNLOADS_ID);
 
-        progressBar = (MaterialProgressBar) findViewById(R.id.progressBar);
+        progressBar = findViewById(R.id.progressBar);
 
-        recyclerView = (RecyclerView) findViewById(R.id.downloads_recycler_view);
+        recyclerView = findViewById(R.id.downloads_recycler_view);
         recyclerView.setHasFixedSize(true);
         final LinearLayoutManager layoutManager = new LinearLayoutManager(getApplicationContext());
         recyclerView.setLayoutManager(layoutManager);
@@ -113,7 +112,7 @@ public class DownloadsActivity extends BaseActivity implements DownloadsAdapter.
             }
         });
 
-        uploadFAB = (FloatingActionButton) findViewById(R.id.download_fab);
+        uploadFAB = findViewById(R.id.download_fab);
         uploadFAB.setEnabled(false);
         uploadFAB.hide();
 

app/src/main/java/gr/thmmy/mthmmy/activities/downloads/DownloadsAdapter.java

@@ -174,14 +174,14 @@ class DownloadsAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
 
         DownloadViewHolder(View download) {
             super(download);
-            upperLinear = (LinearLayout) download.findViewById(R.id.upper_linear);
+            upperLinear = download.findViewById(R.id.upper_linear);
-            downloadRow = (LinearLayout) download.findViewById(R.id.download_row);
+            downloadRow = download.findViewById(R.id.download_row);
-            informationExpandable = (LinearLayout) download.findViewById(R.id.child_board_expandable);
+            informationExpandable = download.findViewById(R.id.child_board_expandable);
-            title = (TextView) download.findViewById(R.id.download_title);
+            title = download.findViewById(R.id.download_title);
-            subTitle = (TextView) download.findViewById(R.id.download_sub_title);
+            subTitle = download.findViewById(R.id.download_sub_title);
-            uploaderDate = (TextView) download.findViewById(R.id.download_extra_info);
+            uploaderDate = download.findViewById(R.id.download_extra_info);
-            extraInfo = (TextView) download.findViewById(R.id.download_uploader_date);
+            extraInfo = download.findViewById(R.id.download_uploader_date);
-            informationExpandableBtn = (ImageButton) download.findViewById(R.id.download_information_button);
+            informationExpandableBtn = download.findViewById(R.id.download_information_button);
         }
     }
 
@@ -190,7 +190,7 @@ class DownloadsAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
 
         LoadingViewHolder(View itemView) {
             super(itemView);
-            progressBar = (MaterialProgressBar) itemView.findViewById(R.id.recycler_progress_bar);
+            progressBar = itemView.findViewById(R.id.recycler_progress_bar);
         }
     }
 }

app/src/main/java/gr/thmmy/mthmmy/activities/main/MainActivity.java

@@ -73,10 +73,10 @@ public class MainActivity extends BaseActivity implements RecentFragment.RecentF
 
 
         //Set up the ViewPager with the sections adapter.
-        viewPager = (ViewPager) findViewById(R.id.container);
+        viewPager = findViewById(R.id.container);
         viewPager.setAdapter(sectionsPagerAdapter);
 
-        TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
+        TabLayout tabLayout = findViewById(R.id.tabs);
         tabLayout.setupWithViewPager(viewPager);
 
         setMainActivity(this);

app/src/main/java/gr/thmmy/mthmmy/activities/main/forum/ForumAdapter.java

@@ -70,7 +70,7 @@ class ForumAdapter extends ExpandableRecyclerAdapter<Category, Board, ForumAdapt
 
         CategoryViewHolder(View itemView) {
             super(itemView);
-            categoryTextview = (TextView) itemView.findViewById(R.id.category);
+            categoryTextview = itemView.findViewById(R.id.category);
         }
 
         void bind(Category category) {
@@ -86,7 +86,7 @@ class ForumAdapter extends ExpandableRecyclerAdapter<Category, Board, ForumAdapt
 
         BoardViewHolder(View itemView) {
             super(itemView);
-            boardTextView = (TextView) itemView.findViewById(R.id.board);
+            boardTextView = itemView.findViewById(R.id.board);
         }
 
         void bind(final Board board) {

app/src/main/java/gr/thmmy/mthmmy/activities/main/forum/ForumFragment.java

@@ -98,7 +98,7 @@ public class ForumFragment extends BaseFragment {
 
         // Set the adapter
         if (rootView instanceof RelativeLayout) {
-            progressBar = (MaterialProgressBar) rootView.findViewById(R.id.progressBar);
+            progressBar = rootView.findViewById(R.id.progressBar);
             forumAdapter = new ForumAdapter(getContext(), categories, fragmentInteractionListener);
             forumAdapter.setExpandCollapseListener(new ExpandableRecyclerAdapter.ExpandCollapseListener() {
                 @Override
@@ -124,7 +124,7 @@ public class ForumFragment extends BaseFragment {
                 }
             });
 
-            CustomRecyclerView recyclerView = (CustomRecyclerView) rootView.findViewById(R.id.list);
+            CustomRecyclerView recyclerView = rootView.findViewById(R.id.list);
             LinearLayoutManager linearLayoutManager = new LinearLayoutManager(rootView.findViewById(R.id.list).getContext());
             recyclerView.setLayoutManager(linearLayoutManager);
             DividerItemDecoration dividerItemDecoration = new DividerItemDecoration(recyclerView.getContext(),
@@ -132,7 +132,7 @@ public class ForumFragment extends BaseFragment {
             recyclerView.addItemDecoration(dividerItemDecoration);
             recyclerView.setAdapter(forumAdapter);
 
-            swipeRefreshLayout = (SwipeRefreshLayout) rootView.findViewById(R.id.swiperefresh);
+            swipeRefreshLayout = rootView.findViewById(R.id.swiperefresh);
             swipeRefreshLayout.setOnRefreshListener(
                     new SwipeRefreshLayout.OnRefreshListener() {
                         @Override

app/src/main/java/gr/thmmy/mthmmy/activities/main/recent/RecentAdapter.java

@@ -77,9 +77,9 @@ class RecentAdapter extends RecyclerView.Adapter<RecentAdapter.ViewHolder> {
         ViewHolder(View view) {
             super(view);
             mView = view;
-            mTitleView = (TextView) view.findViewById(R.id.title);
+            mTitleView = view.findViewById(R.id.title);
-            mUserView = (TextView) view.findViewById(R.id.lastUser);
+            mUserView = view.findViewById(R.id.lastUser);
-            mDateTimeView = (TextView) view.findViewById(R.id.dateTime);
+            mDateTimeView = view.findViewById(R.id.dateTime);
         }
     }
 }

app/src/main/java/gr/thmmy/mthmmy/activities/main/recent/RecentFragment.java

@@ -95,10 +95,10 @@ public class RecentFragment extends BaseFragment {
 
         // Set the adapter
         if (rootView instanceof RelativeLayout) {
-            progressBar = (MaterialProgressBar) rootView.findViewById(R.id.progressBar);
+            progressBar = rootView.findViewById(R.id.progressBar);
             recentAdapter = new RecentAdapter(getActivity(), topicSummaries, fragmentInteractionListener);
 
-            CustomRecyclerView recyclerView = (CustomRecyclerView) rootView.findViewById(R.id.list);
+            CustomRecyclerView recyclerView = rootView.findViewById(R.id.list);
             LinearLayoutManager linearLayoutManager = new LinearLayoutManager(rootView.findViewById(R.id.list).getContext());
             recyclerView.setLayoutManager(linearLayoutManager);
             DividerItemDecoration dividerItemDecoration = new DividerItemDecoration(recyclerView.getContext(),
@@ -106,7 +106,7 @@ public class RecentFragment extends BaseFragment {
             recyclerView.addItemDecoration(dividerItemDecoration);
             recyclerView.setAdapter(recentAdapter);
 
-            swipeRefreshLayout = (SwipeRefreshLayout) rootView.findViewById(R.id.swiperefresh);
+            swipeRefreshLayout = rootView.findViewById(R.id.swiperefresh);
             swipeRefreshLayout.setOnRefreshListener(
                     new SwipeRefreshLayout.OnRefreshListener() {
                         @Override

app/src/main/java/gr/thmmy/mthmmy/activities/main/unread/UnreadAdapter.java

@@ -114,9 +114,9 @@ class UnreadAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
         ViewHolder(View view) {
             super(view);
             mView = view;
-            mTitleView = (TextView) view.findViewById(R.id.title);
+            mTitleView = view.findViewById(R.id.title);
-            mUserView = (TextView) view.findViewById(R.id.lastUser);
+            mUserView = view.findViewById(R.id.lastUser);
-            mDateTimeView = (TextView) view.findViewById(R.id.dateTime);
+            mDateTimeView = view.findViewById(R.id.dateTime);
         }
     }
 
@@ -125,7 +125,7 @@ class UnreadAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
 
         EmptyViewHolder(View view) {
             super(view);
-            text = (TextView) view.findViewById(R.id.text);
+            text = view.findViewById(R.id.text);
         }
     }
 
@@ -137,7 +137,7 @@ class UnreadAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
         MarkReadViewHolder(View view) {
             super(view);
             mView = view;
-            text = (TextView) view.findViewById(R.id.mark_read);
+            text = view.findViewById(R.id.mark_read);
         }
     }
 

app/src/main/java/gr/thmmy/mthmmy/activities/main/unread/UnreadFragment.java

@@ -98,7 +98,7 @@ public class UnreadFragment extends BaseFragment {
 
         // Set the adapter
         if (rootView instanceof RelativeLayout) {
-            progressBar = (MaterialProgressBar) rootView.findViewById(R.id.progressBar);
+            progressBar = rootView.findViewById(R.id.progressBar);
             unreadAdapter = new UnreadAdapter(getActivity(), topicSummaries,
                     fragmentInteractionListener, new UnreadAdapter.MarkReadInteractionListener() {
                 @Override
@@ -110,7 +110,7 @@ public class UnreadFragment extends BaseFragment {
                 }
             });
 
-            CustomRecyclerView recyclerView = (CustomRecyclerView) rootView.findViewById(R.id.list);
+            CustomRecyclerView recyclerView = rootView.findViewById(R.id.list);
             LinearLayoutManager linearLayoutManager = new LinearLayoutManager(rootView.findViewById(R.id.list).getContext());
             recyclerView.setLayoutManager(linearLayoutManager);
             DividerItemDecoration dividerItemDecoration = new DividerItemDecoration(recyclerView.getContext(),
@@ -118,7 +118,7 @@ public class UnreadFragment extends BaseFragment {
             recyclerView.addItemDecoration(dividerItemDecoration);
             recyclerView.setAdapter(unreadAdapter);
 
-            swipeRefreshLayout = (SwipeRefreshLayout) rootView.findViewById(R.id.swiperefresh);
+            swipeRefreshLayout = rootView.findViewById(R.id.swiperefresh);
             swipeRefreshLayout.setOnRefreshListener(
                     new SwipeRefreshLayout.OnRefreshListener() {
                         @Override

app/src/main/java/gr/thmmy/mthmmy/activities/profile/ProfileActivity.java

@@ -13,7 +13,6 @@ import android.support.v4.app.FragmentManager;
 import android.support.v4.app.FragmentPagerAdapter;
 import android.support.v4.content.res.ResourcesCompat;
 import android.support.v4.view.ViewPager;
-import android.support.v7.widget.Toolbar;
 import android.text.Spannable;
 import android.text.SpannableString;
 import android.text.Spanned;
@@ -105,7 +104,7 @@ public class ProfileActivity extends BaseActivity implements LatestPostsFragment
         profileUrl = extras.getString(BUNDLE_PROFILE_URL);
 
         //Initializes graphic elements
-        toolbar = (Toolbar) findViewById(R.id.toolbar);
+        toolbar = findViewById(R.id.toolbar);
         toolbar.setTitle(null);
         setSupportActionBar(toolbar);
         if (getSupportActionBar() != null) {
@@ -115,9 +114,9 @@ public class ProfileActivity extends BaseActivity implements LatestPostsFragment
 
         createDrawer();
 
-        progressBar = (MaterialProgressBar) findViewById(R.id.progressBar);
+        progressBar = findViewById(R.id.progressBar);
 
-        thumbnailView = (ImageView) findViewById(R.id.user_thumbnail);
+        thumbnailView = findViewById(R.id.user_thumbnail);
         if (!Objects.equals(thumbnailUrl, ""))
             //noinspection ConstantConditions
             Picasso.with(this)
@@ -130,15 +129,15 @@ public class ProfileActivity extends BaseActivity implements LatestPostsFragment
                             , R.drawable.ic_default_user_thumbnail, null))
                     .transform(new CircleTransform())
                     .into(thumbnailView);
-        usernameView = (TextView) findViewById(R.id.profile_activity_username);
+        usernameView = findViewById(R.id.profile_activity_username);
         usernameView.setTypeface(Typeface.createFromAsset(this.getAssets()
                 , "fonts/fontawesome-webfont.ttf"));
         if (username != null && !Objects.equals(username, "")) usernameView.setText(username);
-        personalTextView = (TextView) findViewById(R.id.profile_activity_personal_text);
+        personalTextView = findViewById(R.id.profile_activity_personal_text);
 
-        viewPager = (ViewPager) findViewById(R.id.profile_tab_container);
+        viewPager = findViewById(R.id.profile_tab_container);
 
-        pmFAB = (FloatingActionButton) findViewById(R.id.profile_fab);
+        pmFAB = findViewById(R.id.profile_fab);
         pmFAB.setEnabled(false);
         pmFAB.hide();
         /*if (!sessionManager.isLoggedIn()) pmFAB.hide();
@@ -311,7 +310,7 @@ public class ProfileActivity extends BaseActivity implements LatestPostsFragment
             }
 
             setupViewPager(viewPager, profilePage);
-            TabLayout tabLayout = (TabLayout) findViewById(R.id.profile_tabs);
+            TabLayout tabLayout = findViewById(R.id.profile_tabs);
             tabLayout.setupWithViewPager(viewPager);
             if (tabSelect != 0) {
                 TabLayout.Tab tab = tabLayout.getTabAt(tabSelect);

app/src/main/java/gr/thmmy/mthmmy/activities/profile/latestPosts/LatestPostsAdapter.java

@@ -97,10 +97,10 @@ class LatestPostsAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
 
         LatestPostViewHolder(View itemView) {
             super(itemView);
-            latestPostsRow = (RelativeLayout) itemView.findViewById(R.id.latest_posts_row);
+            latestPostsRow = itemView.findViewById(R.id.latest_posts_row);
-            postTitle = (TextView) itemView.findViewById(R.id.title);
+            postTitle = itemView.findViewById(R.id.title);
-            postDate = (TextView) itemView.findViewById(R.id.date);
+            postDate = itemView.findViewById(R.id.date);
-            post = (WebView) itemView.findViewById(R.id.post);
+            post = itemView.findViewById(R.id.post);
         }
     }
 
@@ -109,7 +109,7 @@ class LatestPostsAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
 
         LoadingViewHolder(View itemView) {
             super(itemView);
-            progressBar = (MaterialProgressBar) itemView.findViewById(R.id.recycler_progress_bar);
+            progressBar = itemView.findViewById(R.id.recycler_progress_bar);
         }
     }
 }

app/src/main/java/gr/thmmy/mthmmy/activities/profile/latestPosts/LatestPostsFragment.java

@@ -84,7 +84,7 @@ public class LatestPostsFragment extends BaseFragment implements LatestPostsAdap
                              Bundle savedInstanceState) {
         final View rootView = inflater.inflate(R.layout.fragment_latest_posts, container, false);
         latestPostsAdapter = new LatestPostsAdapter(fragmentInteractionListener, parsedTopicSummaries);
-        RecyclerView mainContent = (RecyclerView) rootView.findViewById(R.id.profile_latest_posts_recycler);
+        RecyclerView mainContent = rootView.findViewById(R.id.profile_latest_posts_recycler);
         mainContent.setAdapter(latestPostsAdapter);
         final LinearLayoutManager layoutManager = new LinearLayoutManager(getContext());
         mainContent.setLayoutManager(layoutManager);
@@ -106,7 +106,7 @@ public class LatestPostsFragment extends BaseFragment implements LatestPostsAdap
                 }
             }
         });
-        progressBar = (MaterialProgressBar) rootView.findViewById(R.id.progressBar);
+        progressBar = rootView.findViewById(R.id.progressBar);
         return rootView;
     }
 

app/src/main/java/gr/thmmy/mthmmy/activities/profile/stats/StatsFragment.java

@@ -90,8 +90,8 @@ public class StatsFragment extends Fragment {
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
         final View rootView = inflater.inflate(R.layout.fragment_stats, container, false);
-        mainContent = (LinearLayout) rootView.findViewById(R.id.main_content);
+        mainContent = rootView.findViewById(R.id.main_content);
-        progressBar = (MaterialProgressBar) rootView.findViewById(R.id.progressBar);
+        progressBar = rootView.findViewById(R.id.progressBar);
         if (haveParsed)
             populateLayout();
         return rootView;
@@ -224,7 +224,7 @@ public class StatsFragment extends Fragment {
         ((TextView) mainContent.findViewById(R.id.posting_activity_by_time_title))
                 .setText(postingActivityByTimeTitle);
 
-        LineChart postingActivityByTimeChart = (LineChart) mainContent
+        LineChart postingActivityByTimeChart = mainContent
                 .findViewById(R.id.posting_activity_by_time_chart);
         postingActivityByTimeChart.setDescription(null);
         postingActivityByTimeChart.getLegend().setEnabled(false);
@@ -257,7 +257,7 @@ public class StatsFragment extends Fragment {
         ((TextView) mainContent.findViewById(R.id.most_popular_boards_by_posts_title))
                 .setText(mostPopularBoardsByPostsTitle);
 
-        HorizontalBarChart mostPopularBoardsByPostsChart = (HorizontalBarChart) mainContent.
+        HorizontalBarChart mostPopularBoardsByPostsChart = mainContent.
                 findViewById(R.id.most_popular_boards_by_posts_chart);
         mostPopularBoardsByPostsChart.setDescription(null);
         mostPopularBoardsByPostsChart.getLegend().setEnabled(false);
@@ -298,7 +298,7 @@ public class StatsFragment extends Fragment {
         ((TextView) mainContent.findViewById(R.id.most_popular_boards_by_activity_title))
                 .setText(mostPopularBoardsByActivityTitle);
 
-        HorizontalBarChart mostPopularBoardsByActivityChart = (HorizontalBarChart) mainContent.
+        HorizontalBarChart mostPopularBoardsByActivityChart = mainContent.
                 findViewById(R.id.most_popular_boards_by_activity_chart);
         mostPopularBoardsByActivityChart.setDescription(null);
         mostPopularBoardsByActivityChart.getLegend().setEnabled(false);

app/src/main/java/gr/thmmy/mthmmy/activities/profile/summary/SummaryFragment.java

@@ -77,7 +77,7 @@ public class SummaryFragment extends Fragment {
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
         final View rootView = inflater.inflate(R.layout.fragment_summary, container, false);
-        mainContent = (LinearLayout) rootView.findViewById(R.id.profile_activity_content);
+        mainContent = rootView.findViewById(R.id.profile_activity_content);
         if (!parsedProfileSummaryData.isEmpty() && isAdded())
             populateLayout();
         return rootView;

app/src/main/java/gr/thmmy/mthmmy/activities/topic/TopicActivity.java

@@ -11,7 +11,6 @@ import android.os.Handler;
 import android.support.design.widget.FloatingActionButton;
 import android.support.v7.app.AlertDialog;
 import android.support.v7.widget.RecyclerView;
-import android.support.v7.widget.Toolbar;
 import android.text.Html;
 import android.text.SpannableStringBuilder;
 import android.text.TextUtils;
@@ -143,8 +142,8 @@ public class TopicActivity extends BaseActivity {
         thisPageBookmark = new Bookmark(topicTitle, ThmmyPage.getTopicId(topicPageUrl));
 
         //Initializes graphics
-        toolbar = (Toolbar) findViewById(R.id.toolbar);
+        toolbar = findViewById(R.id.toolbar);
-        toolbarTitle = (TextView) toolbar.findViewById(R.id.toolbar_title);
+        toolbarTitle = toolbar.findViewById(R.id.toolbar_title);
         toolbarTitle.setSingleLine(true);
         toolbarTitle.setEllipsize(TextUtils.TruncateAt.MARQUEE);
         toolbarTitle.setMarqueeRepeatLimit(-1);
@@ -162,11 +161,11 @@ public class TopicActivity extends BaseActivity {
 
         createDrawer();
 
-        progressBar = (MaterialProgressBar) findViewById(R.id.progressBar);
+        progressBar = findViewById(R.id.progressBar);
 
         postsList = new ArrayList<>();
 
-        recyclerView = (RecyclerView) findViewById(R.id.topic_recycler_view);
+        recyclerView = findViewById(R.id.topic_recycler_view);
         recyclerView.setHasFixedSize(true);
         recyclerView.setOnTouchListener(
                 new View.OnTouchListener() {
@@ -183,9 +182,9 @@ public class TopicActivity extends BaseActivity {
         topicAdapter = new TopicAdapter(this, postsList, topicTask);
         recyclerView.setAdapter(topicAdapter);
 
-        replyFAB = (FloatingActionButton) findViewById(R.id.topic_fab);
+        replyFAB = findViewById(R.id.topic_fab);
         replyFAB.setEnabled(false);
-        bottomNavBar = (LinearLayout) findViewById(R.id.bottom_navigation_bar);
+        bottomNavBar = findViewById(R.id.bottom_navigation_bar);
         if (!sessionManager.isLoggedIn()) replyFAB.hide();
         else {
             replyFAB.setOnClickListener(new View.OnClickListener() {
@@ -204,11 +203,11 @@ public class TopicActivity extends BaseActivity {
         }
 
         //Sets bottom navigation bar
-        firstPage = (ImageButton) findViewById(R.id.page_first_button);
+        firstPage = findViewById(R.id.page_first_button);
-        previousPage = (ImageButton) findViewById(R.id.page_previous_button);
+        previousPage = findViewById(R.id.page_previous_button);
-        pageIndicator = (TextView) findViewById(R.id.page_indicator);
+        pageIndicator = findViewById(R.id.page_indicator);
-        nextPage = (ImageButton) findViewById(R.id.page_next_button);
+        nextPage = findViewById(R.id.page_next_button);
-        lastPage = (ImageButton) findViewById(R.id.page_last_button);
+        lastPage = findViewById(R.id.page_last_button);
 
         initDecrementButton(firstPage, LARGE_STEP);
         initDecrementButton(previousPage, SMALL_STEP);
@@ -243,10 +242,10 @@ public class TopicActivity extends BaseActivity {
                 LinearLayout infoDialog = (LinearLayout) inflater.inflate(R.layout.dialog_topic_info
                         , null);
                 ((TextView) infoDialog.findViewById(R.id.dialog_title)).setText("Info");
-                TextView treeAndMods = (TextView) infoDialog.findViewById(R.id.topic_tree_and_mods);
+                TextView treeAndMods = infoDialog.findViewById(R.id.topic_tree_and_mods);
                 treeAndMods.setText(topicTreeAndMods);
                 treeAndMods.setMovementMethod(LinkMovementMethod.getInstance());
-                TextView usersViewing = (TextView) infoDialog.findViewById(R.id.users_viewing);
+                TextView usersViewing = infoDialog.findViewById(R.id.users_viewing);
                 usersViewing.setText(topicViewers);
                 usersViewing.setMovementMethod(LinkMovementMethod.getInstance());
 

app/src/main/java/gr/thmmy/mthmmy/activities/topic/TopicAdapter.java

@@ -139,7 +139,7 @@ class TopicAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
                     inflate(R.layout.activity_topic_quick_reply_row, parent, false);
             view.findViewById(R.id.quick_reply_submit).setEnabled(true);
 
-            final EditText quickReplyText = (EditText) view.findViewById(R.id.quick_reply_text);
+            final EditText quickReplyText = view.findViewById(R.id.quick_reply_text);
             quickReplyText.setFocusableInTouchMode(true);
             quickReplyText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
                 @Override
@@ -511,29 +511,29 @@ class TopicAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
             super(view);
             //Initializes layout's graphic elements
             //Standard stuff
-            cardView = (CardView) view.findViewById(R.id.card_view);
+            cardView = view.findViewById(R.id.card_view);
-            cardChildLinear = (LinearLayout) view.findViewById(R.id.card_child_linear);
+            cardChildLinear = view.findViewById(R.id.card_child_linear);
-            postDateAndNumber = (FrameLayout) view.findViewById(R.id.post_date_and_number_exp);
+            postDateAndNumber = view.findViewById(R.id.post_date_and_number_exp);
-            postDate = (TextView) view.findViewById(R.id.post_date);
+            postDate = view.findViewById(R.id.post_date);
-            postNum = (TextView) view.findViewById(R.id.post_number);
+            postNum = view.findViewById(R.id.post_number);
-            thumbnail = (ImageView) view.findViewById(R.id.thumbnail);
+            thumbnail = view.findViewById(R.id.thumbnail);
-            username = (TextView) view.findViewById(R.id.username);
+            username = view.findViewById(R.id.username);
-            subject = (TextView) view.findViewById(R.id.subject);
+            subject = view.findViewById(R.id.subject);
-            post = (WebView) view.findViewById(R.id.post);
+            post = view.findViewById(R.id.post);
             post.setBackgroundColor(Color.argb(1, 255, 255, 255));
-            quoteToggle = (ImageButton) view.findViewById(R.id.toggle_quote_button);
+            quoteToggle = view.findViewById(R.id.toggle_quote_button);
             bodyFooterDivider = view.findViewById(R.id.body_footer_divider);
-            postFooter = (LinearLayout) view.findViewById(R.id.post_footer);
+            postFooter = view.findViewById(R.id.post_footer);
 
             //User's extra info
-            header = (RelativeLayout) view.findViewById(R.id.header);
+            header = view.findViewById(R.id.header);
-            userExtraInfo = (LinearLayout) view.findViewById(R.id.user_extra_info);
+            userExtraInfo = view.findViewById(R.id.user_extra_info);
-            specialRank = (TextView) view.findViewById(R.id.special_rank);
+            specialRank = view.findViewById(R.id.special_rank);
-            rank = (TextView) view.findViewById(R.id.rank);
+            rank = view.findViewById(R.id.rank);
-            gender = (TextView) view.findViewById(R.id.gender);
+            gender = view.findViewById(R.id.gender);
-            numberOfPosts = (TextView) view.findViewById(R.id.number_of_posts);
+            numberOfPosts = view.findViewById(R.id.number_of_posts);
-            personalText = (TextView) view.findViewById(R.id.personal_text);
+            personalText = view.findViewById(R.id.personal_text);
-            stars = (TextView) view.findViewById(R.id.stars);
+            stars = view.findViewById(R.id.stars);
         }
     }
 
@@ -550,15 +550,15 @@ class TopicAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
         QuickReplyViewHolder(View quickReply, CustomEditTextListener replySubject
                 , CustomEditTextListener replyText) {
             super(quickReply);
-            thumbnail = (ImageView) quickReply.findViewById(R.id.thumbnail);
+            thumbnail = quickReply.findViewById(R.id.thumbnail);
-            username = (TextView) quickReply.findViewById(R.id.username);
+            username = quickReply.findViewById(R.id.username);
-            this.quickReply = (EditText) quickReply.findViewById(R.id.quick_reply_text);
+            this.quickReply = quickReply.findViewById(R.id.quick_reply_text);
             this.replyText = replyText;
             this.quickReply.addTextChangedListener(replyText);
-            quickReplySubject = (EditText) quickReply.findViewById(R.id.quick_reply_subject);
+            quickReplySubject = quickReply.findViewById(R.id.quick_reply_subject);
             this.replySubject = replySubject;
             quickReplySubject.addTextChangedListener(replySubject);
-            submitButton = (AppCompatImageButton) quickReply.findViewById(R.id.quick_reply_submit);
+            submitButton = quickReply.findViewById(R.id.quick_reply_submit);
         }
     }