intent activity won't start if map is included in the layout

Question

My class extends FragmentActivity... Intent activity will start when map is not included in the layout. But unfortunately, the intent activity won't start if activity_main_map is included in activity_main_nav. Can somebody help me?

public class MainMapActivity extends FragmentActivity

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

    setUpToolbarDrawer();
    setUpNavView();
}

@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
    int id = item.getItemId();

    if (id == R.id.add_bus) {
        Intent intent = new Intent(MainMapActivity.this, AddBusActivity.class);
        startActivity(intent);
    } else if (id == R.id.add_driver) {
        Intent intent = new Intent(MainMapActivity.this, AddDriverActivity.class);
        startActivity(intent);
    }

    DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    drawer.closeDrawer(GravityCompat.START);
    return true;
}

public void setUpToolbarDrawer() {
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    DrawerLayout drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
    drawerLayout.setDrawerListener(toggle);
    toggle.syncState();
}

public void setUpNavView() {
    NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
    navigationView.setNavigationItemSelectedListener(this);
}

activity_main_nav

<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" />

<include
    layout="@layout/activity_main_map"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

activity_main_map

<fragment
    android:id="@+id/map"
    android:name="com.google.android.gms.maps.SupportMapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

Answer 1

I just put the appBar and the included map inside a LinearLayout Just like this.

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <include xmlns:android="http://schemas.android.com/apk/res/android"
        layout="@layout/app_bar_main"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <include
        layout="@layout/activity_main_map"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
</LinearLayout>

<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" />