Added drawer intro, tiny changes

CONTRIBUTING.md

@@ -7,7 +7,7 @@ to contribute to mTHMMY in a way that is efficient for everyone.
 
 **Important!** Instead of creating publicly viewable issues for suspected security
 vulnerabilities, please report them in private to
-`thmmynolife@gmail.com`.
+[thmmynolife@gmail.com](mailto:thmmynolife@gmail.com).
 
 ## I want to contribute!
 
@@ -18,7 +18,7 @@ There are many ways of contributing to mTHMMY:
 - Submitting bugs and ideas to our [issue tracker][github-issues]
 - Forking mTHMMY and submitting [pull requests](#pull-requests)
 - Joining our core team
-- Contacting us by email at `thmmynolife@gmail.com`
+- Contacting us by email at [thmmynolife@gmail.com](mailto:thmmynolife@gmail.com)
 
 ## Issue tracker
 
@@ -27,17 +27,17 @@ Before creating a new issue make sure to **search the tracker** for similar ones
 
 ## Compiling
 
-Due to the app's integration with Firebase, a `google-services.json` is required inside the `app` directory. To get one, either [set up your own Firebase project][firebase-console] (with or without a self hosted [backend][sisyphus]), or ask us to provide you the one we use for development.
+Due to the app's integration with Firebase, a *google-services.json* file is required inside the *app* directory. To get one, either [set up your own Firebase project][firebase-console] (with or without a self hosted [backend][sisyphus]), or ask us to provide you the one we use for development.
 
 ## Pull requests
 
 Pull requests with fixes and improvements to mTHMMY are most welcome. Any developer that wants to work independently from the core team can simply
-follow the workflow below to make a pull request:
+follow the workflow below to make a pull request (PR):
 
 1. Fork the project into your personal space on Github
-1. Create a feature branch, away from `develop`
+1. Create a feature branch, away from [develop](https://github.com/ThmmyNoLife/mTHMMY/tree/develop)
 1. Push the commit(s) to your fork
-1. Create a pull request (PR) targeting `develop` [at mTHMMY](https://github.com/ThmmyNoLife/mTHMMY/tree/develop)
+1. Create a PR targeting [develop at mTHMMY](https://github.com/ThmmyNoLife/mTHMMY/tree/develop)
 1. Fill the PR title describing the change you want to make
 1. Fill the PR description with a brief motive for your change and the method you used to achieve it
 1. Submit the PR.

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

@@ -45,6 +45,8 @@ public class MainActivity extends BaseActivity implements RecentFragment.RecentF
 
     //-----------------------------------------CLASS VARIABLES------------------------------------------
     private static final int TIME_INTERVAL = 2000;
+    private SharedPreferences sharedPrefs;
+    private static final String DRAWER_INTRO = "DRAWER_INTRO";
     private long mBackPressed;
     private SectionsPagerAdapter sectionsPagerAdapter;
     private ViewPager viewPager;
@@ -83,13 +85,12 @@ public class MainActivity extends BaseActivity implements RecentFragment.RecentF
         TabLayout tabLayout = findViewById(R.id.tabs);
         tabLayout.setupWithViewPager(viewPager);
 
-        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);
+        sharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);
         int preferredTab = Integer.parseInt(sharedPrefs.getString(DEFAULT_HOME_TAB, "0"));
         if (preferredTab != 3 || sessionManager.isLoggedIn()) {
             tabLayout.getTabAt(preferredTab).select();
         }
 
-
         setMainActivity(this);
     }
 
@@ -103,6 +104,10 @@ public class MainActivity extends BaseActivity implements RecentFragment.RecentF
     @Override
     protected void onResume() {
         drawer.setSelection(HOME_ID);
+        if(!sharedPrefs.getBoolean(DRAWER_INTRO, false)){
+            drawer.openDrawer();
+            sharedPrefs.edit().putBoolean(DRAWER_INTRO, true).apply();
+        }
         updateTabs();
         super.onResume();
     }

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

@@ -41,11 +41,11 @@ import gr.thmmy.mthmmy.activities.topic.tasks.PrepareForReply;
 import gr.thmmy.mthmmy.activities.topic.tasks.ReplyTask;
 import gr.thmmy.mthmmy.activities.topic.tasks.TopicTask;
 import gr.thmmy.mthmmy.base.BaseActivity;
+import gr.thmmy.mthmmy.editorview.EmojiKeyboard;
 import gr.thmmy.mthmmy.model.Bookmark;
 import gr.thmmy.mthmmy.model.Post;
 import gr.thmmy.mthmmy.model.ThmmyPage;
 import gr.thmmy.mthmmy.utils.CustomLinearLayoutManager;
-import gr.thmmy.mthmmy.editorview.EmojiKeyboard;
 import gr.thmmy.mthmmy.utils.HTMLUtils;
 import gr.thmmy.mthmmy.utils.parsing.ParseHelpers;
 import gr.thmmy.mthmmy.viewmodel.TopicViewModel;

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

@@ -42,12 +42,12 @@ import gr.thmmy.mthmmy.R;
 import gr.thmmy.mthmmy.activities.board.BoardActivity;
 import gr.thmmy.mthmmy.activities.profile.ProfileActivity;
 import gr.thmmy.mthmmy.base.BaseActivity;
+import gr.thmmy.mthmmy.editorview.EditorView;
+import gr.thmmy.mthmmy.editorview.EmojiKeyboard;
 import gr.thmmy.mthmmy.model.Post;
 import gr.thmmy.mthmmy.model.ThmmyFile;
 import gr.thmmy.mthmmy.model.ThmmyPage;
 import gr.thmmy.mthmmy.utils.CircleTransform;
-import gr.thmmy.mthmmy.editorview.EditorView;
-import gr.thmmy.mthmmy.editorview.EmojiKeyboard;
 import gr.thmmy.mthmmy.utils.parsing.ParseHelpers;
 import gr.thmmy.mthmmy.viewmodel.TopicViewModel;
 import timber.log.Timber;

app/src/main/java/gr/thmmy/mthmmy/editorview/AutoFitGridLayout.java

@@ -4,6 +4,7 @@ import android.content.Context;
 import android.content.res.TypedArray;
 import android.util.AttributeSet;
 import android.widget.GridLayout;
+
 import gr.thmmy.mthmmy.R;
 
 public class AutoFitGridLayout extends GridLayout {