title: issue to remove NavigationView menu item selected color?
body: <p>Hi all i am facing one strange issue. I added <code>Navigation View</code> in my <code>Activity</code> and by default every time when i start the App the first navigation item selected with some background color.</p>
  
  <p>I want to remove this feature.</p>
  
  <h2>My gradle:</h2>
  
  <pre><code>dependencies {
  compile fileTree(dir: 'libs', include: ['*.jar'])
  testCompile 'junit:junit:4.12'
  compile 'com.android.support:appcompat-v7:22.2.1'
  compile 'com.android.support:design:22.2.1'
  }
  </code></pre>
  
  <h2>Code:</h2>
  
  <pre><code>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) {
  
      }
  
      DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
      drawer.closeDrawer(GravityCompat.START);
      return true;
    }
  }
  </code></pre>
  
  <h2>Menu XML:</h2>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;menu xmlns:android="http://schemas.android.com/apk/res/android"&gt;
  
  &lt;group android:checkableBehavior="single"&gt;
      &lt;item
          android:id="@+id/nav_camera"
          android:icon="@drawable/ic_menu_camera"
          android:title="Import" /&gt;
      &lt;item
          android:id="@+id/nav_gallery"
          android:icon="@drawable/ic_menu_gallery"
          android:title="Gallery" /&gt;
      &lt;item
          android:id="@+id/nav_slideshow"
          android:icon="@drawable/ic_menu_slideshow"
          android:title="Slideshow" /&gt;
      &lt;item
          android:id="@+id/nav_manage"
          android:icon="@drawable/ic_menu_manage"
          android:title="Tools" /&gt;
  &lt;/group&gt;
  </code></pre>
  
  <p></p>
  
  <h2>Layout:</h2>
  
  <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;include
      layout="@layout/app_bar_main"
      android:layout_width="match_parent"
      android:layout_height="match_parent" /&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;/android.support.v4.widget.DrawerLayout&gt;
  </code></pre>
  
  <h2>SnapShot::</h2>
  
  <p><a href="https://i.stack.imgur.com/JIkCt.png" rel="noreferrer"><img src="https://i.stack.imgur.com/JIkCt.png" alt="enter image description here"></a></p>
  
  <p>Any hint how to remove this type of features?</p>