Navigation Drawer Below Toolbar

Solution 1:

You should move DrawerLayout as top parent and move Toolbar out of DrawerLayout content container. In short this looks like:

RelativeLayout
 ----Toolbar
 ----DrawerLayout
     ---ContentView
     ---DrawerList 

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/top_parent"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context=".MainActivity">

    <include
        android:id="@+id/toolbar"
        layout="@layout/toolbar" />

    <android.support.v4.widget.DrawerLayout
        android:id="@+id/drawer_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/toolbar">

        <FrameLayout
            android:id="@+id/content_frame"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@color/background_color" />

        <ListView
            android:id="@+id/drawer"
            android:layout_width="260dp"
            android:layout_height="match_parent"
            android:layout_below="@+id/toolbar"
            android:layout_gravity="start"
            android:layout_marginTop="56dp" />

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

However, Material Design guidelines state that Navigation Drawer should be above the Toolbar.

Solution 2:

You should simply add

android:layout_marginTop="@dimen/abc_action_bar_default_height_material"

to your layout which you are using as drawer.

This will automatically adjust the navigation drawer below the toolbar and also supports different screen sizes.

Solution 3:

You can add layout_marginTop like this,

<android.support.design.widget.NavigationView
        android:layout_marginTop="@dimen/abc_action_bar_default_height_material"
        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" />

but drawer will appear as a the top layer to tool bar.

Here is another Choppy way to add it below to toolbar!!!

might not be the best but it works!

end result will look like this

If you create a project as a Navigation Drawer project(Navigation Drawer Activity) it will give you four XML files at the creation in your layout folder

• app_bar_main
• content_main
• navigatin_main

• activity_main

  

how these xmls are linked? mostly i see include tag is used

Your Activity is linked with activity_main

• activity_main has the app_bar_main and navigation_view(drawer)
• app_bar_main has the toolbar and content_main by default

now lets remove activity_main and set its contents directly to app bar main and use it as the main layout for Activity.

To add the drawer under tool bar add it under the android.support.design.widget.AppBarLayout because is contains the toolbar and its should be on top.

here is an example of app_bar_main.XML

      <?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context="none.navhead.MainActivity">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <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/AppTheme.PopupOverlay" />

    </android.support.design.widget.AppBarLayout>



    //------ taken from activity_main
    // content main
    <include layout="@layout/content_main" />

    // you need this padding
    <android.support.v4.widget.DrawerLayout
        android:paddingTop="?attr/actionBarSize"
        android:id="@+id/drawer_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:openDrawer="start">

        <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" />

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


</android.support.design.widget.CoordinatorLayout>

p.s you can set app_bar_main.XML to setContentView of your activity just play around there are plenty of ways ;)