@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
    // Handle navigation view item clicks here.
    int id = item.getItemId();

    if (id == R.id.activity_one) {

        Intent intent = new Intent(this, ActivityOne.class);

        this.startActivity(intent);

    } else if (id == R.id.activity_two) {

        Intent intent = new Intent(this, ActivityTwo.class);

        this.startActivity(intent);

    } else if (id == R.id.activity_tree) {

        Intent intent = new Intent(this, ActivityThree.class);

        this.startActivity(intent);

    } 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;
}