title: Side Navigation Drawer Item click not working
body: <p><strong>PLEASE READ FIRST</strong>
  <strong>BEFORE ANYONE MARK IT AS DUPLICATE QUESTION BECAUSE IT IS NOT.</strong></p>
  
  <p>I have used Navigation Drawer, Bottom Navigation bar and a custom Action bar.</p>
  
  <p>Bottom navigation bar and action bar are working fine.
  navigation drawer also shows menu present under it but the items are not clickable.</p>
  
  <p>I have tried all the answers related to </p>
  
  <blockquote>
    <p>navigation drawer item click not working</p>
  </blockquote>
  
  <p>but still my problem has not been solved yet.
  there is no error in the debug section.</p>
  
  <p><img src="https://i.stack.imgur.com/DDuKe.jpg" alt="Image of output  "></p>
  
  <p><img src="https://i.stack.imgur.com/EDqNY.jpg" alt="Image of output "></p>
  
  <p><strong>Dashboard Activity</strong></p>
  
  <pre><code>package com.vicky.sampleApp;
  import android.content.Intent;
  import android.os.Build;
  import android.os.Bundle;
  import android.support.annotation.NonNull;
  import android.support.annotation.RequiresApi;
  import android.support.design.widget.BottomNavigationView;
  import android.support.design.widget.NavigationView;
  import android.support.v4.app.Fragment;
  import android.support.v4.view.GravityCompat;
  import android.support.v4.widget.DrawerLayout;
  import android.support.v7.app.ActionBar;
  import android.support.v7.app.ActionBarDrawerToggle;
  import android.support.v7.app.AppCompatActivity;
  import android.view.Gravity;
  import android.view.MenuItem;
  import android.view.View;
  import android.widget.TextView;
  import android.widget.Toast;
  import android.support.v7.widget.Toolbar;
  
  public class Dashboard extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
      //android.app.ActionBar actionbar;
      TextView textview;
      TextView textviewTitle;
      private ActionBar toolbar;
      private DrawerLayout drawer;
      private ActionBarDrawerToggle toggle;
  
      @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.dashboard);
  
          Toolbar toolbar1 = (Toolbar) findViewById(R.id.toolbar);
          setSupportActionBar(toolbar1);
  
          setActionBarText("HomePage");
  
           drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
           toggle = new ActionBarDrawerToggle(
                  this, drawer, toolbar1, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
          drawer.bringToFront();
          drawer.addDrawerListener(toggle);
          toggle.syncState();
  
          NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
          navigationView.setNavigationItemSelectedListener(this);
  
          toolbar = getSupportActionBar();
  
          BottomNavigationView navigation = (BottomNavigationView) findViewById(R.id.bottomNavigationView);
          navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);
  
  
  
      }
  
  
      private void setActionBarText(String text){
      toolbar = getSupportActionBar();
      toolbar.setBackgroundDrawable(getResources().getDrawable(R.drawable.default_appbar_theme));//line under the action bar
      View viewActionBar = getLayoutInflater().inflate(R.layout.actionbar_title_text_layout, null);
      ActionBar.LayoutParams params = new ActionBar.LayoutParams(//Center the textview in the ActionBar !
              ActionBar.LayoutParams.WRAP_CONTENT,
              ActionBar.LayoutParams.MATCH_PARENT,
              Gravity.CENTER);
      textviewTitle = (TextView) viewActionBar.findViewById(R.id.actionbar_textview);
      textviewTitle.setText(text);
      toolbar.setCustomView(viewActionBar, params);
      toolbar.setDisplayShowCustomEnabled(true);
      toolbar.setDisplayShowTitleEnabled(false);
      toolbar.setHomeButtonEnabled(true);
  }
  /*
  private NavigationView.OnNavigationItemSelectedListener mSideNavigationItemSelectedListener
          = new NavigationView.OnNavigationItemSelectedListener() {
      @Override
      public boolean onNavigationItemSelected(@NonNull MenuItem item) {
          switch(item.getItemId()){
              case R.id.nav_camera:
                  Toast.makeText(Dashboard.this, "Camera", Toast.LENGTH_SHORT).show();
                  Intent intent = new Intent(Dashboard.this,AboutUs.class);
                  startActivity(intent);
                  break;
              case R.id.nav_gallery:
                  Toast.makeText(Dashboard.this, "Gallery", Toast.LENGTH_SHORT).show();
                  break;
              case R.id.nav_slideshow:
                  Toast.makeText(Dashboard.this, "Slideshow", Toast.LENGTH_SHORT).show();
                  break;
              case R.id.nav_manage:
                  Toast.makeText(Dashboard.this, "Slideshow", Toast.LENGTH_SHORT).show();
                  break;
              case R.id.nav_share:
                  Toast.makeText(Dashboard.this, "Nav_share", Toast.LENGTH_SHORT).show();
                  break;
              case R.id.nav_send:
                  Toast.makeText(Dashboard.this, "nav_send", Toast.LENGTH_SHORT).show();
                  break;
          }
          drawer.closeDrawer(GravityCompat.START);
          return true;
      }
  };
  */
      private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
              = new BottomNavigationView.OnNavigationItemSelectedListener() {
  
          @Override
          public boolean onNavigationItemSelected(@NonNull MenuItem item) {
              Fragment fragment;
              switch (item.getItemId()) {
                  case R.id.navigation_home:
                      setActionBarText("Home");
                      return true;
                  case R.id.navigation_appointments:
                      setActionBarText("Appointments");
                      return true;
                  case R.id.navigation_category:
                      setActionBarText("Category");
                      return true;
                  case R.id.navigation_profile:
                      setActionBarText("Profile");
                      return true;
              }
              return false;
          }
      };
  
      @Override
      public boolean onNavigationItemSelected(@NonNull MenuItem item) {
          // Handle navigation view item clicks here.
          int id = item.getItemId();
  
          if (id == R.id.nav_camera) {
              Toast.makeText(this, "Camera", Toast.LENGTH_SHORT).show();
              Intent intent = new Intent(this,AboutUs.class);
              startActivity(intent);
          } else if (id == R.id.nav_gallery) {
              Toast.makeText(this, "Gallery", Toast.LENGTH_SHORT).show();
          } else if (id == R.id.nav_slideshow) {
              Toast.makeText(this, "Slideshow", Toast.LENGTH_SHORT).show();
          } else if (id == R.id.nav_manage) {
              Toast.makeText(this, "Nav_manage", Toast.LENGTH_SHORT).show();
          } else if (id == R.id.nav_share) {
              Toast.makeText(this, "Nav_share", Toast.LENGTH_SHORT).show();
          } else if (id == R.id.nav_send) {
              Toast.makeText(this, "nav_send", Toast.LENGTH_SHORT).show();
          }
  
          DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
          drawer.closeDrawer(GravityCompat.START);
          return true;
      }
  
  }
  </code></pre>
  
  <p><strong>dashboard.xml</strong></p>
  
  <pre><code>    &lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;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"&gt;
  
      &lt;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" /&gt;
  
      &lt;FrameLayout
          android:layout_width="match_parent"
          android:layout_height="match_parent"&gt;
  
          &lt;android.support.design.widget.AppBarLayout
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:theme="@style/CustomTheme.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/CustomTheme.PopupOverlay" /&gt;
  
          &lt;/android.support.design.widget.AppBarLayout&gt;
  
          &lt;android.support.design.widget.BottomNavigationView
              android:id="@+id/bottomNavigationView"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:background="?android:attr/windowBackground"
              app:layout_constraintBottom_toBottomOf="parent"
              app:layout_constraintLeft_toLeftOf="parent"
              app:layout_constraintRight_toRightOf="parent"
              app:labelVisibilityMode="labeled"
              app:itemBackground="@color/colorPrimary"
              android:layout_gravity="bottom"
              app:itemIconTint="@drawable/selector_bottom_nav_bar"
              app:itemTextColor="@drawable/selector_bottom_nav_bar"
              app:menu="@menu/navigation"/&gt;
  
      &lt;/FrameLayout&gt;
  
  &lt;/android.support.v4.widget.DrawerLayout&gt;
  </code></pre>