VBlog | V部落，VueSpringBoot实现的多用户博客管理平台! | Frontend Framework library

 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.material.manohar.vblogs/com.material.manohar.vblogs.MainActivity}: 
    java.lang.NullPointerException: Attempt to invoke virtual method 'void     android.support.design.widget.FloatingActionButton.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2779)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2857)
        at android.app.ActivityThread.-wrap11(Unknown Source:0)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1590)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6499)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:440)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
     Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.design.widget.FloatingActionButton.setOnClickListener(android.view.View$OnClickListener)' on a null object reference

public class MainActivity extends AppCompatActivity
    implements NavigationView.OnNavigationItemSelectedListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        if(!isConnected(MainActivity.this)) buildDialog(MainActivity.this).show();
       else {
           setContentView(R.layout.activity_main);
       }

       Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
       setSupportActionBar(toolbar);

       FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
       fab.setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View view) {
               Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.fromParts(
                    "mailto","xxxxx@gmail.com", null));
               String subject = "Suggest/Feedback -- VB";
               String message = "";
               intent.putExtra(Intent.EXTRA_SUBJECT, subject);
               intent.putExtra(Intent.EXTRA_TEXT, message);
               startActivity(Intent.createChooser(intent, "Choose an Email client :"));
           }
       });

       DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
       ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
               this, drawer, toolbar,             
               R.string.navigation_drawer_open,
               R.string.navigation_drawer_close);
       drawer.addDrawerListener(toggle);
       toggle.syncState();

       NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
       navigationView.setNavigationItemSelectedListener(this);
}


public boolean isConnected(Context context) {
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(context.CONNECTIVITY_SERVICE);
    NetworkInfo networkInfo = cm.getActiveNetworkInfo();

    if (networkInfo != null && networkInfo.isConnectedOrConnecting()) {
        android.net.NetworkInfo wifi=cm.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
    android.net.NetworkInfo mobile=cm.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);

        if ((mobile!= null && mobile.isConnectedOrConnecting()) || (wifi!= null && wifi.isConnectedOrConnecting())) return true;
        else return false;
    }
    else
        return false;
    }

public AlertDialog.Builder buildDialog(Context c) {

    AlertDialog.Builder builder = new AlertDialog.Builder(c);
    builder.setTitle("No Internet Connection");
    builder.setMessage("You need to have Mobile Data or wifi to access the app.     Press ok to Exit");

    builder.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            finish();
        }
    });


    return builder;
}
//Rest code is nav drawer functionalities which we get by selecting nav drawer   activity layout.

 <?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout              
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">

<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />

<android.support.design.widget.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_main"
app:menu="@menu/activity_main_drawer" />

</android.support.v4.widget.DrawerLayout>

<?xml version="1.0" encoding="utf-8"?>
   <android.support.design.widget.CoordinatorLayout                
   xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:titleTextAppearance="@style/TitleBarTextAppearance"
            app:popupTheme="@style/AppTheme.PopupOverlay" />

    </android.support.design.widget.AppBarLayout>

    <include layout="@layout/content_main" />

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="@dimen/fab_margin"
        app:srcCompat="@android:drawable/ic_dialog_email" />

    </android.support.design.widget.CoordinatorLayout>

d= {'alexveachfashion': 'Fashion Style * Haute Couture * Wearable Tech * VR\n⌚\nSoundCloud is Live @alexveach\nNew YouTube Episodes ▶️', 'andrewvng': 'Family | Fitness | Friends | Gym | Food', 'runvi.official': 'Accurate measurement via SMART insoles & real-time AI coaching. Improve your technique & BOOST your performance with every run.\nSoon on Kickstarter!', 'triing': 'Augmented Jewellery™️ • Montreal. Canada.', 'gedeanekenshima': 'Prof na Etec Albert Einstein, Mestranda em Automação e Controle de Processos, Engenheira de Controle e Automação, Técnica em Automação Industrial.', 'jetyourdaddy': '', 'lavonne_sun': '☄️ ✨\n°●°。Visual Narrative\nA creative heart with a poetic soul.\n————————————\nPARSONS —— Design & Technology', 'taysearch': 'All the World’s Information At Your Fingertips. (Literally) Est. 1991  #PrincessofSearch Sample  the Search Engine Here ', 'hijewellery': 'Fine 3D printed jewellery for tech lovers #3dprintedjewelry #wearabletech #jewellery', 'yhanchristian': 'Estudante de Engenharia, Maker e viciado em café.', 'femka': 'Fashion Futurist + Fashion Tech Lab Founder @technoirlab + Fashion Designer / Parsons & CSM Grad / Obsessed with #fashiontech #future #cryptocurrency', 'sinhbisen': 'Creator, TRiiNG, augmented jewellery label ⭕️ Transhumanist ⭕️ Corporeal cartographer ⭕️', 'stellawearables': '#StellaWearables ✉️Info@StellaWearables.com                  Premium Wearable Technology That Monitors Personal Health & Environments ☀️', 'ivoomi_india': 'We are the manufacturers of the most innovative technologies and user-friendly gadgets with a global presence.', 'bgutenschwager': "When it comes to life, it's all about the experience.\nGoogle Mapper \n360 Photographer \nBrand Rep @QuickTutor", 'storiesofdesign': 'Putting stories at the heart of brands and businesses | Cornwall and London  |  #storiesofdesign', 'trume.jp': '草創期から国産ウオッチの製造に取り組み、挑戦を続けてきたエプソンが世界に放つ新ブランド「TRUME」（トゥルーム）。目指すのは、最先端技術でアナログウオッチを極めるブランド。', 'themarinesss': "I didn't choose the blog life, the blog life chose me | Aspiring Children's Book Author | www.slayathomemum.com", 'ayowearable': 'The world’s first light-based wearable that helps you sleep better, beat jet lag and have more energy! #goAYO Get yours at:', 'wearyourowntechs': 'Bringing you the latest trends, Current Products and Reviews of Wearable Technology. Discover how they can enhance your Life and Lifestyle', 'roxfordwatches': 'The Roxford  |  The most stylish and customizable fitness smartwatch. Tracks your steps/calories/dist/sleep. Comes with FOUR bands, and a travel case!', 'playertek': "Track your entire performance - every training session, every match. \nBecause the best players don't hide.", '_kate_hartman_': '', 'hmsmc10': 'Health & Wellness \nBoston, MA \nSuffolk MPA ‘17  \n.\nJust Strong Ambassador \u200d♀️', 'gadgetxtreme': 'Dedicated to reviewing gadgets, technologies, internet products and breaking tech news. Follow us to see daily vblogs on all the disruptive tech..', 'freedom.journey.leader': 'MN\nWife • Homeschooling Mom to 5  • D Y I lover  • Small town living in MN.  \nAshleybp5@gmail.com \n#homeschool #bossmom #builder #momlife', 'arts_food_life': 'Life through my phone.', 'medgizmo': 'Wearable #tech: #health #healthcare #wellness #gadgets #apps. Images/links provided as information resource only; doesn’t mean we endorse referenced', 'sawearables': 'The home of wearable tech in South Africa!\n--> #WearableTech #WearableTechnology #FitnessTech       Find your wearable @', 'shop.mercury': 'Changing the way you charge.⚡️\nGet exclusive product discounts, and help us reach our goal below!', 'invisawear': 'PRE-ORDERS NOW AVAILABLE! Get yours 25% OFF here: #girlboss #wearabletech'}

for key in d:
    print("---with emojis----")
    print(d[key])
    print("---emojis removed----")
    x=''.join(c for c in d[key] if c <= '\uFFFF')
    print(x)

---with emojis----
MN
Wife • Homeschooling Mom to 5  • D Y I lover  • Small town living in MN.  
Ashleybp5@gmail.com 
#homeschool #bossmom #builder #momlife
---emojis removed----
MN
Wife • Homeschooling Mom to 5  • D Y I lover  • Small town living in MN.  
Ashleybp5@gmail.com 
#homeschool #bossmom #builder #momlife
---with emojis----
Changing the way you charge.⚡️
Get exclusive product discounts, and help us reach our goal below!
---emojis removed----
Changing the way you charge.⚡️
Get exclusive product discounts, and help us reach our goal below!

protected override void Seed(VBlog.DbLayer.DbInitializer context)
{
    //this(AddOrUpdate) will check first is there is alrady record exists or not in the database.
    context.Roleses.AddOrUpdate(x => x.RoleName,
            // master data
            new Roles { RoleName = "Admin", Weightage = 3 },
            new Roles { RoleName = "User", Weightage = 1 }
           );

    //adding the mast data for user table
    context.Userses.AddOrUpdate(x=>x.EmailId,
             new Users()
              {
                  FirstName = "vir",
                  LastName = "acker",
                  EmailId = "vir.acker@xyz.com",
                  Password = password,
                  Gender = "Male",
                  Islocked = "false",
                  CreatedDate = DateTime.Now,
                 **Foreign key for Users table**
              }
            ); 

    //context.Userses.AddRange(defaultUserDataList);
    base.Seed(context);
}