NavigationView OnNavigationItemSelectedListener not being called

Your activity main layout should look like this:

<android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/navigationDrawer"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

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

    <android.support.design.widget.NavigationView
        android:id="@+id/navigationView"
        style="@style/NavigationView"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="right"
        app:headerLayout="@layout/header"
        app:menu="@menu/menu_drawer"/>

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

In this NavigationView I linked header.xml and menu_drawer.xml (from menu folder) for example menu_drawer.xml :

<menu xmlns:android="http://schemas.android.com/apk/res/android">
        <group android:checkableBehavior="single">
            <item
                android:id="@+id/nav1"
                android:checked="true"
                android:icon="@drawable/logo"
                android:title="Navigation item 1"/>
            <item
                android:id="@+id/nav2"
                android:icon="@drawable/logo"
                android:title="Navigation item 2"/>
        </group>
    </menu>

than your java code:

public class ActivityMain extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        setUpToolbar();
        setUpNavDrawer();
    }

 private void setUpNavDrawer() {
        NavigationView view = (NavigationView) findViewById(R.id.navigationView);
        mDrawerLayout = (DrawerLayout) findViewById(R.id.navigationDrawer);
        view.setNavigationItemSelectedListener(this);
        mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, toolbar, R.string.drawerOpen, R.string.drawerClose);
        mDrawerLayout.addDrawerListener(mDrawerToggle);
        mDrawerToggle.syncState();
    }

Check if this work for you. In my project works like a charm.

For me this did the trick!

navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.bringToFront();

When you make XML layout, you should write down NavigationView after BaseLayout (FrameLayout, LinearLayout, etc..)

<DrawerLayout>
    <FrameLayout />
    <NavigationView />
</DrawerLayout>