title: how to use floating action button with navigation drawer?
body: <p>I'm new at programming and I want to use Navigation Drawer with <code>FloatingActionButton</code>. I'm able to make both of these separately but I can't do it in a single project.
  I don't really want to 3rd party libraries. </p>
  
  <p>Edit:</p>
  
  <p>I want to use Navigation Drawer and <code>FloatingActionButton</code> for opening different fragments.
  By default, this is the Navigation Drawer and I need to add action to the <code>FloatingActionB</code></p>
  
  <p>MainActivity.Java</p>
  
  <pre><code>import android.os.Bundle;
  import android.support.design.widget.FloatingActionButton;
  import android.support.design.widget.Snackbar;
  import android.view.View;
  import android.support.design.widget.NavigationView;
  import android.support.v4.view.GravityCompat;
  import android.support.v4.widget.DrawerLayout;
  import android.support.v7.app.ActionBarDrawerToggle;
  import android.support.v7.app.AppCompatActivity;
  import android.support.v7.widget.Toolbar;
  import android.view.Menu;
  import android.view.MenuItem;
  
  public class MainActivity extends AppCompatActivity
          implements NavigationView.OnNavigationItemSelectedListener {
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          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) {
                  Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                          .setAction("Action", null).show();
              }
          });
  
          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.setDrawerListener(toggle);
          toggle.syncState();
  
          NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
          navigationView.setNavigationItemSelectedListener(this);
      }
  
      @Override
      public void onBackPressed() {
          DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
          if (drawer.isDrawerOpen(GravityCompat.START)) {
              drawer.closeDrawer(GravityCompat.START);
          } else {
              super.onBackPressed();
          }
      }
  
      @Override
      public boolean onCreateOptionsMenu(Menu menu) {
          // Inflate the menu; this adds items to the action bar if it is present.
          getMenuInflater().inflate(R.menu.main, menu);
          return true;
      }
  
      @Override
      public boolean onOptionsItemSelected(MenuItem item) {
          // Handle action bar item clicks here. The action bar will
          // automatically handle clicks on the Home/Up button, so long
          // as you specify a parent activity in AndroidManifest.xml.
          int id = item.getItemId();
  
          //noinspection SimplifiableIfStatement
          if (id == R.id.action_settings) {
              return true;
          }
  
          return super.onOptionsItemSelected(item);
      }
  
      @SuppressWarnings("StatementWithEmptyBody")
      @Override
      public boolean onNavigationItemSelected(MenuItem item) {
          // Handle navigation view item clicks here.
          int id = item.getItemId();
  
          if (id == R.id.nav_camera) {
              // Handle the camera action
          } else if (id == R.id.nav_gallery) {
  
          } else if (id == R.id.nav_slideshow) {
  
          } else if (id == R.id.nav_manage) {
  
          } else if (id == R.id.nav_share) {
  
          } else if (id == R.id.nav_send) {
  
          }
  
          DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
          drawer.closeDrawer(GravityCompat.START);
          return true;
      }
      }
  </code></pre>
  
  <p>app_bar_main.xml(which has floating button)</p>
  
  <p>
  </p>
  
  <pre><code>&lt;android.support.design.widget.AppBarLayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:theme="@style/AppTheme.AppBarOverlay"&gt;
  
      &lt;android.support.v7.widget.Toolbar
          android:id="@+id/toolbar"
          android:layout_width="match_parent"
          android:layout_height="?attr/actionBarSize"
          android:background="?attr/colorPrimary"
          app:popupTheme="@style/AppTheme.PopupOverlay" /&gt;
  
  &lt;/android.support.design.widget.AppBarLayout&gt;
  
  &lt;include layout="@layout/content_main" /&gt;
  
  &lt;android.support.design.widget.FloatingActionButton
      android:id="@+id/fab2"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_marginBottom="160dp"
      android:layout_gravity="bottom|end"
      android:layout_marginRight="@dimen/fab_margin"
      android:visibility="invisible"
      app:backgroundTint="@color/colorPrimaryDark"
      app:elevation="6dp"
      app:pressedTranslationZ="12dp"
      app:srcCompat="@android:drawable/btn_radio" /&gt;
  &lt;android.support.design.widget.FloatingActionButton
      android:id="@+id/fab1"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_marginBottom="90dp"
      android:layout_gravity="bottom|end"
      android:layout_marginRight="@dimen/fab_margin"
      android:visibility="invisible"
      app:elevation="6dp"
      app:backgroundTint="@color/colorPrimary"
      app:pressedTranslationZ="12dp"
      app:srcCompat="@android:drawable/ic_menu_manage" /&gt;
  &lt;android.support.design.widget.FloatingActionButton
      android:id="@+id/fab"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_gravity="bottom|end"
      app:elevation="6dp"
      app:backgroundTint="@color/colorAccent"
      app:pressedTranslationZ="12dp"
      android:layout_margin="@dimen/fab_margin"
      app:srcCompat="@android:drawable/ic_menu_add" /&gt;
  </code></pre>
  
  <p></p>