Develop Reference

Navigation Drawer does not cover an activity

I am writing an organiser app and I am stuck at this problem. Navigation drawer stacks itself with the listview in activity 1 . There is no exception and the app is working, but the listview elements and navigation drawer elements are clicked at the same time.
Here is the activity layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
tools:context=".EventActivity">
<androidx.drawerlayout.widget.DrawerLayout
android:id="#+id/my_drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
tools:ignore="HardcodedText">
<com.google.android.material.navigation.NavigationView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="#menu/navigation_menu" />
</androidx.drawerlayout.widget.DrawerLayout>
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/list"/>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="20dp"
android:layout_alignParentEnd="true"
android:layout_alignParentBottom="true"
/>
</RelativeLayout>

DrawerLayout should be the parent of your layout. Here`s my example:
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.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/mDrawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="false"
tools:openDrawer="end">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
//my code
</androidx.constraintlayout.widget.ConstraintLayout>
<com.google.android.material.navigation.NavigationView
android:id="#+id/navrapoarte"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
>
//my code
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:minHeight="200dp"
android:orientation="vertical">
</androidx.constraintlayout.widget.ConstraintLayout>
</com.google.android.material.navigation.NavigationView>
</androidx.drawerlayout.widget.DrawerLayout>

How to add chevron in navigation drawer

I am using navigation drawer in my app, i have a requirement to add chevron at the end of each row like following
Following is my code.
<com.google.android.material.navigation.NavigationView
android:id="#+id/nav_view"
android:fitsSystemWindows="true"
android:layout_marginEnd="-65dp"
android:layout_marginRight="-65dp"
android:background="#color/nav_base_color"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
app:itemTextAppearance="#style/navigationFontStyle"
app:headerLayout="#layout/nav_header_layout"
app:menu="#menu/navigation" />

<com.google.android.material.navigation.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#fff"
android:fitsSystemWindows="true"
android:visibility="visible"
app:headerLayout="#layout/nav_header_sample_drawer"
app:itemIconTint="#color/colorPrimary"
app:itemTextColor="#212121">
then here is nav_header_sample_drawe
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/colorPrimary"
android:orientation="vertical"
android:paddingTop="20dp"
android:theme="#style/ThemeOverlay.AppCompat.Dark">
<include
android:id="#+id/drawer_layout"
layout="#layout/navigation_drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true" />
</LinearLayout>
</layout>
And Then in layout="#layout/navigation_drawer"
you can add your custom layout

recycler view on bottom of the screen

I have an RecyclerView that is stuck to the bottom of the screen. I have tried adding constraints but that does not help. If anyone can help it would be appreciated. My code and an image to show whats wrong is below.
RecyclerView stuck at the bottom
<?xml version="1.0" encoding="utf-8"?>
<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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<!-- here is the toolbar -->
<include
layout="#layout/app_bar_map"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<android.support.v7.widget.RecyclerView
android:id="#+id/my_recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical" />
</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_map"
app:menu="#menu/activity_map_drawer" />
</android.support.v4.widget.DrawerLayout>
Edit: As requested here is my app_bar_map.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"
tools:context=".Ways">
<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="?android:attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include
android:id="#+id/include"
layout="#layout/content_map" />
</android.support.design.widget.CoordinatorLayout>
and here is my version of recyclerView items
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/cv"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="16dp"
>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/id"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginRight="16dp"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/name"
android:layout_toRightOf="#+id/id"
android:layout_alignParentTop="true"
android:textSize="30sp"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/description"
android:layout_toRightOf="#+id/id"
android:layout_below="#+id/name"
/>
</RelativeLayout>
</android.support.v7.widget.CardView>
</android.support.constraint.ConstraintLayout>

Set your LinearLayout height match_parent
Check your toolbar height should be wrap_content
Important: Your RecyclerView item layout'parent element should be wrap_content.
Like
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
>
<!--do it match parent-->
<LinearLayout
android:layout_height="match_parent"
>
<include
/>
<android.support.v7.widget.RecyclerView
/>
</LinearLayout>
<android.support.design.widget.NavigationView
/>
</android.support.v4.widget.DrawerLayout>

Use android:layout_weight="1" to get the empty space for the recycleview
<android.support.v7.widget.RecyclerView
android:id="#+id/my_recycler_view"
android:layout_width="match_parent"
android:layout_height="0dp"
android:scrollbars="vertical"
android:layout_weight="1"/>

Set Layout like this
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/white"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<include layout="#layout/app_bar_map" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:background="#color/white"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="8.5"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="#+id/my_recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:background="#color/white"
android:scrollbarSize="0dp"
android:scrollbars="vertical" />
</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_map"
app:menu="#menu/activity_map_drawer" />
</LinearLayout>
</LinearLayout>
Hope this may help you

A really simple solution (if you don't want to debug anymore), try replace your code with
<?xml version="1.0" encoding="utf-8"?>
<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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<!-- here is the toolbar -->
<include
layout="#layout/app_bar_map"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<android.support.v7.widget.RecyclerView
android:id="#+id/my_recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical" />
</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_map"
app:menu="#menu/activity_map_drawer" />
</android.support.v4.widget.DrawerLayout>
Hope it helps!

Try this
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<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">
<include
layout="#layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<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>
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"
tools:context=".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>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<android.support.v7.widget.RecyclerView
android:id="#+id/my_recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical" />
<include layout="#layout/content_main" />
</LinearLayout>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
app:srcCompat="#android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>
Content_main.xml(optional)
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context=".MainActivity"
tools:showIn="#layout/app_bar_main">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
Note: This code show recylerview at top & content_main.xml code below to recylerview if you want to view the content_main area set recylerview height to wrap_content.

Android - Navigation Drawer and NavigationBar

i implemented a navigation bar at the bottom of my activity
now i need to implement a navigationdrawer too
how do i do?
here is my layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:design="http://schemas.android.com/apk/res-auto"
android:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="app.movemate.MainActivity"
android:orientation="vertical"
android:layout_weight="1">
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#color/transparent">
</FrameLayout>
<android.support.design.widget.BottomNavigationView
android:background="#color/colorPrimary"
android:id="#+id/navigationView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
design:menu="#menu/menu_navigation"
android:layout_gravity="bottom"
design:itemIconTint="#color/White"
design:itemTextColor="#color/White"
design:itemBackground="#drawable/navigation_selected_item"/>
</LinearLayout>
i tried with this tutorial https://www.youtube.com/watch?v=mtOztjHmM0c
but when i compile it says i already have a navigation bar
EDIT
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:design="http://schemas.android.com/apk/res-auto"
android:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="app.movemate.MainActivity"
android:orientation="vertical"
android:layout_weight="1">
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#color/transparent"
android:layout_alignParentTop="true">
</FrameLayout>
<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:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
android:layout_height="match_parent"
android:layout_width="match_parent"
layout="#layout/navigation_view"/>
</LinearLayout>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:menu="#menu/menu_navigation"
android:layout_gravity="start"/>
</android.support.v4.widget.DrawerLayout>
<android.support.design.widget.BottomNavigationView
android:background="#color/colorPrimary"
android:id="#+id/navigationView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
design:menu="#menu/menu_navigation"
android:layout_gravity="bottom"
design:itemIconTint="#color/White"
design:itemTextColor="#color/White"
design:itemBackground="#drawable/navigation_selected_item"
android:layout_alignParentBottom="true"/>
</RelativeLayout>
i tried this and i can see the navbar at bottom but the fragment is covered by drawer background
suggestions?
EDIT - SOLVED
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:design="http://schemas.android.com/apk/res-auto"
android:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="app.movemate.MainActivity"
android:orientation="vertical"
android:layout_weight="1">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
android:layout_height="match_parent"
android:layout_width="match_parent"
layout="#layout/navigation_view"/>
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/navigationView"
android:background="#color/White"
android:layout_alignParentTop="true">
</FrameLayout>
<android.support.design.widget.BottomNavigationView
android:background="#color/colorPrimary"
android:id="#+id/navigationView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
design:menu="#menu/menu_navigation"
android:layout_gravity="bottom"
design:itemIconTint="#color/White"
design:itemTextColor="#color/White"
design:itemBackground="#drawable/navigation_selected_item"
android:layout_alignParentBottom="true"/>
</RelativeLayout>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="start"
design:menu="#menu/menu_navigation"/>
</android.support.v4.widget.DrawerLayout>

if you want to create navigation drawer u should use drawerLayout.
<?xml version="1.0" encoding="utf-8"?>
<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">
<FrameLayout
layout="#layout/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<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:backgroundTint="#color/white"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_main"
app:itemBackground="#color/white"
app:itemIconTint="#color/black"
app:itemTextColor="#color/black"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>

in android studio, Navigation bar and navigation layout automatically gets added once you create a new activity from templates "navigation drawer activity"

How to place navigation drawers header below statusbar?

I want my header of my Navigation drawer to be below the statusbar. When searching for solutions, every result is about how to place it under the status bar. I have of course tried to "reverse" theese solutions to place the header below. But it hasn't worked and I'm testing it on a Samsung Galaxy S7 API 23
Right now it looks like this:
This is my layout containing DrawerLayout, NavigationView:
<?xml version="1.0" encoding="utf-8"?>
<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:background="#00ffff"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
android:id="#+id/toolbar_drawer_layout"
layout="#layout/navdrawer_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<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:background="#color/arion_darkgray"
android:fitsSystemWindows="true"
app:headerLayout="#layout/navdrawer_header"
app:itemBackground="#drawable/nav_drawer_selector"
app:itemIconTint="#fff"
app:itemTextColor="#fff"
app:menu="#menu/navdrawer_menu"
app:theme="#style/custom_navDrawer_style" />
</android.support.v4.widget.DrawerLayout>
Toolbar layout:
<?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=".MyHorseActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="#+id/myhorse_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/arion_darkblue">
<RelativeLayout
android:id="#+id/myhorse_toolbar_innerlayout"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#android:color/transparent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:paddingRight="70dp"
android:text="My Horse"
android:textColor="#fff"
android:textSize="24sp" />
<ImageView
android:backgroundTint="#ff0000"
android:layout_width="15dp"
android:layout_height="15dp"
android:layout_alignParentRight="true"
android:layout_centerInParent="true"
android:layout_marginRight="10dp"
android:background="#drawable/circle_shape" />
</RelativeLayout>
</android.support.v7.widget.Toolbar>
<include
layout="#layout/divider_lightblue"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_alignParentBottom="true">
</include>
</android.support.design.widget.AppBarLayout>
<include
android:id="#+id/activity"
layout="#layout/myhorse_activity_" />
Much of this is auto generated by Android Studio after I created my NavigationDrawer Class from the wizard

You have not put your xml fully so I don't know whats wrong with your xml but if you want your navigation drawer below action bar then put your drawerlayout below your toolbar as follows
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<!--Start of the Toolbar and its items -->
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center" />
<android.support.v4.widget.DrawerLayout
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"></LinearLayout>
<!--Used for displaying Navigation Drawer slide-->
<LinearLayout
android:id="#+id/navigation_drawer"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:orientation="vertical">
<FrameLayout
android:id="#+id/navigation_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
</android.support.v4.widget.DrawerLayout>
</LinearLayout>
According to your edited question drawerlayout xml would be like
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
android:id="#+id/toolbar_drawer_layout"
layout="#layout/navdrawer_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<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:background="#00ffff"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
android:id="#+id/activity"
layout="#layout/myhorse_activity_" />
<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:background="#color/arion_darkgray"
android:fitsSystemWindows="true"
app:headerLayout="#layout/navdrawer_header"
app:itemBackground="#drawable/nav_drawer_selector"
app:itemIconTint="#fff"
app:itemTextColor="#fff"
app:menu="#menu/navdrawer_menu"
app:theme="#style/custom_navDrawer_style" />
</android.support.v4.widget.DrawerLayout>
</LinearLayout>
and toolbar layout will be like
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".MyHorseActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="#+id/myhorse_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/arion_darkblue">
<RelativeLayout
android:id="#+id/myhorse_toolbar_innerlayout"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#android:color/transparent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:paddingRight="70dp"
android:text="My Horse"
android:textColor="#fff"
android:textSize="24sp" />
<ImageView
android:layout_width="15dp"
android:layout_height="15dp"
android:layout_alignParentRight="true"
android:layout_centerInParent="true"
android:layout_marginRight="10dp"
android:background="#drawable/circle_shape"
android:backgroundTint="#ff0000" />
</RelativeLayout>
</android.support.v7.widget.Toolbar>
<include
layout="#layout/divider_lightblue"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_alignParentBottom="true" />
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>

I used the xml file below to achieve what you asked. But this way, the drawer opens below both the "status bar" and the "toolbar"
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent"
tools:context=".MainActivity">
<include xmlns:android="http://schemas.android.com/apk/res/android" layout="#layout/toolbar" />
<android.support.v4.widget.DrawerLayout
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:elevation="5dp">
<FrameLayout
android:id = "#+id/frameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
</FrameLayout>
<ListView
android:background="#ffffff"
android:id = "#+id/drawerList"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="left"
android:elevation="5dp"></ListView>
</android.support.v4.widget.DrawerLayout>
</LinearLayout>