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How to ensure that the Android adView is always displayed after the bottom of the last item in my Android listView?

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Zac1 is looking for a canonical answer:
Please provide working XML layout code to fix this issue. If I resize my listView in the Android Studio Design editor such that listView is above the adView, the adView still seems to overlap the last item of the listView.
Here's the activity_results XML layout:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
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="com.test.test.ResultsActivity">
<androidx.coordinatorlayout.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">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<androidx.appcompat.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"
app:titleTextAppearance="#style/ToolbarTitle" />
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_gravity="center_horizontal"
app:tabMaxWidth="0dp">
<com.google.android.material.tabs.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/tab_text_1" />
<com.google.android.material.tabs.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/tab_text_2" />
</com.google.android.material.tabs.TabLayout>
</com.google.android.material.appbar.AppBarLayout>
<androidx.viewpager.widget.ViewPager
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<androidx.constraintlayout.widget.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="com.test.test.ResultsActivity">
<ListView
android:id="#+id/listView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toTopOf="#+id/adView"></ListView>
<com.google.android.gms.ads.AdView xmlns:ads="http://schemas.android.com/apk/res-auto"
android:id="#+id/adView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_gravity="center|bottom"
ads:adSize="SMART_BANNER"
ads:adUnitId="#string/banner_ad_unit_id"
app:layout_constraintBottom_toBottomOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
</RelativeLayout>
And, here's the content_results.xml layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="#dimen/activity_horizontal_margin">
<TextView
android:id="#+id/abc"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingBottom="10dip"
android:textColor="#color/colorAccent"
android:textSize="14sp"
android:textStyle="bold" />
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/def"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textColor="#color/colorPrimary"
android:textSize="14sp"
android:textStyle="bold" />
</RelativeLayout>
<TextView
android:id="#+id/ghi"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""
android:textColor="#color/colorPrimary"
android:textSize="14sp"
android:textStyle="bold" />
</LinearLayout>
I want to have the adView item at the bottom of the last element of the listView. Is this possible with the layouts I currently have? Because it looks like the adView in the activity_results has no relation to the list items in the content_results file?
I've also tried app:layout_constraintBottom_toTopOf attribute to position the adView below the ListView, but there seems to be no change.
Please let me know if you can catch any other basic errors in these layouts?

How about wrapping up co-ordinator view group with constraintLayout and putting adview outside of this co-ordinator viewgroup and constrain adview to bottom to the activity layout so that ad view is independent of list view's data.
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
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="com.test.test.ResultsActivity">
<androidx.coordinatorlayout.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"
app:layout_constraintBottom_toTopOf="#+id/adView"
android:layout_height="wrap_content">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<androidx.appcompat.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"
app:titleTextAppearance="#style/ToolbarTitle" />
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_gravity="center_horizontal"
app:tabMaxWidth="0dp">
<com.google.android.material.tabs.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/tab_text_1" />
<com.google.android.material.tabs.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/tab_text_2" />
</com.google.android.material.tabs.TabLayout>
</com.google.android.material.appbar.AppBarLayout>
<androidx.viewpager.widget.ViewPager
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<androidx.constraintlayout.widget.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="com.test.test.ResultsActivity">
<ListView
android:id="#+id/listView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toTopOf="#+id/adView"></ListView>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
<com.google.android.gms.ads.AdView
android:id="#+id/adView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
ads:adSize="SMART_BANNER"
ads:adUnitId="#string/banner_ad_unit_id"
app:layout_constraintBottom_toBottomOf="parent" />
</ConstraintLayout>

I have two pieces of advice for you:
Avoid using ListView (unless you have a fixed amount and few items). Prefer RecyclerView which is so much more performative. Basically, if you have so many items, with RecyclerView, just a certain amount of items will have the layout rendered. With ListView, even the hundredth item will have the layout rendered (even if you can see just the first four items on your screen at a certain moment).
Take care about using several nested view groups. It impacts the performance to render the layout on the device. In general, just a root ConstraintLayout solves all the problems you can face to align the elements.
For the first layout, because the AppBarLayout needs the CoordinatorLayout to work properly, you can keep the CoordinatorLayout as root and use ConstraintLayout after the AppBarLayout. For the second layout, the same thing. Here is an example:
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:padding="10dp">
<TextView
android:id="#+id/abc"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"
android:paddingBottom="10dp"
android:textColor="#color/design_default_color_primary"
android:textSize="14sp"
android:textStyle="bold" />
<TextView
android:id="#+id/def"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="#id/abc"
android:textColor="#color/design_default_color_primary"
android:textSize="14sp"
android:textStyle="bold" />
<TextView
android:id="#+id/ghi"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="#id/def"
android:text=""
android:textColor="#color/design_default_color_primary"
android:textSize="14sp"
android:textStyle="bold" />
</androidx.constraintlayout.widget.ConstraintLayout>
About your problem with the AdView position, try something like this:
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:padding="10dp">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"
tools:itemCount="#integer/material_motion_duration_long_2"
tools:layout_editor_absoluteX="3dp" />
<com.google.android.gms.ads.AdView
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="#+id/recyclerview"/>
</androidx.constraintlayout.widget.ConstraintLayout>
Let me know if it worked. If you need some more help, contact me.

OneUi styled navigation in android java

I'm beginner in android programming and I want to know how to make an OneUi styled navigation like in this picture.
This is what I made so far. Unfortunately, when I scroll it, it will totally collapse and I cannot get it back.
I used CoordinatorLayout with AppBarLayout and I follow some code from material.io guidelines but it did'nt work as I expected. I want the app bar to be short when scrolled and tall when it is on the top.
Here is my XML Layout Code:
<androidx.coordinatorlayout.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:background="#F0F0F0"
tools:context=".MainActivity">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="256dp">
<com.google.android.material.appbar.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:expandedTitleMarginStart="72dp"
app:expandedTitleMarginBottom="28dp"
app:layout_scrollFlags="scroll|snap">
<com.google.android.material.appbar.MaterialToolbar
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_collapseMode="pin"
app:contentInsetStart="0dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="This is a text"
android:textSize="50dp"
/>
</RelativeLayout>
</com.google.android.material.appbar.MaterialToolbar>
</com.google.android.material.appbar.CollapsingToolbarLayout>
</com.google.android.material.appbar.AppBarLayout>
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipToPadding="false">
</androidx.cardview.widget.CardView>
</androidx.coordinatorlayout.widget.CoordinatorLayout>

For your use case. There are few things you need to change.
Put the content below AppBarLayout in NestedScrollView to have scrolling layout_behavior.
Put some content to mimic scrolling effect. Like textview with huge height for example.
Put the content you want to collapse into one CollapsingToolbarLayout basically things to show when it's tall or not collapsed.
Put your MaterialToolbar as a direct child of AppBarLayout
Example code:
<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.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:background="#F0F0F0"
tools:context=".MainActivity">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<com.google.android.material.appbar.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:expandedTitleMarginBottom="28dp"
app:expandedTitleMarginStart="72dp"
app:layout_scrollFlags="scroll|snap">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="This is collapsing content"
android:textSize="32sp" />
</RelativeLayout>
</com.google.android.material.appbar.CollapsingToolbarLayout>
<com.google.android.material.appbar.MaterialToolbar
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:contentInsetStart="0dp"
app:layout_collapseMode="pin"
app:title="This is MaterialToolbar" />
</com.google.android.material.appbar.AppBarLayout>
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipToPadding="false">
<TextView
android:layout_width="match_parent"
android:layout_height="800dp"
android:text="Hello Test" />
</androidx.cardview.widget.CardView>
</androidx.core.widget.NestedScrollView>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
Output:
Not collapsed:
Collapsed:

Toolbar does not fill menu area width

I've created a menu with a width of 150dp. The toolbar does not match the width of the app. so that the area under the navbar icon is unfilled.
Current toolbar
What I want
custom_toolbar.xml
<Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="150dp"
android:id="#+id/mytoolbar"
android:background="#color/colorPrimaryDark">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- text -->
<LinearLayout
android:id="#+id/dates"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="This text is underneath"
android:textColor="#color/white"
android:textSize="40sp" />
</LinearLayout>
</RelativeLayout>
</Toolbar>
activity_main.xml
<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/drawer_layout_id"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".MainActivity"
tools:openDrawer="start">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbar_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"
android:elevation="1dp"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="#style/Theme.AppCompat.Light" />
<!-- Container for the rest of the screen - Below the Toolbar -->
<FrameLayout
android:id="#+id/framelayout_id"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<!-- Container for contents of drawer - use NavigationView to make configuration easier -->
<com.google.android.material.navigation.NavigationView
android:id="#+id/navid"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
android:visibility="gone"
app:headerLayout="#layout/nav_header_layout"
app:menu="#menu/nav_drawer_menu" />
</androidx.drawerlayout.widget.DrawerLayout>
Questions
Why is the toolbar not filling the whole area? How can I fix this?
Can I use something other than a fixed 150dp size to set the height of the navbar? (such as a percentage)

Can I use something other than a fixed 150dp size to set the height of
the navbar? (such as a percentage)
for this i use
android:layout_height="?attr/actionBarSize"

Is this what you're trying to achieve?
<LinearLayout
android:id="#+id/dates"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:orientation="vertical"
>
<Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="150dp"
android:backgroundTint="#color/colorGreen2"
android:id="#+id/mytoolbar"
android:background="#color/colorPrimaryDark">
</Toolbar>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="This text is underneath"
android:textColor="#color/colorBlack"
android:textSize="40sp" />
</LinearLayout>

Frame Layout is Going Behind the Bottom Navigation Bar?

I have a frame layout in the activity. I have put an action bar and bottom navigation bar in the activity, but the problem is the frame layout is going behind the bottom navigation bar, and it's also not scrolling. I want the frame layout to always remain above the bottom navigation bar.
I have tried giving the bottom navigation drawer a fixed height of "56dp", and layout_margin Bottom="56dp". It works fine, But I don't think it is a good solution, because in some cases, I want to hide the bottom navigation bar.
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#fafafa"
android:orientation="vertical"
tools:context=".Activities.Dashboard">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="#dimen/abc_action_bar_default_height_material"
android:background="#ff2729c3"
app:layout_scrollFlags="scroll|enterAlways"
app:navigationIcon="#drawable/navigation_icon"
app:theme="#style/AppTheme.Toolbar">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:layout_width="32dp"
android:layout_height="32dp"
android:src="#mipmap/app_logo" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="38dp"
android:layout_marginTop="4dp"
android:fontFamily="cursive"
android:text="LootBox"
android:textColor="#color/white"
android:textSize="22sp"
android:textStyle="bold" />
<ImageView
android:layout_width="24dp"
android:layout_height="24dp"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_marginTop="4dp"
android:layout_marginEnd="56dp"
android:src="#drawable/pin_posts" />
<include
layout="#layout/notification_icon_count_badge"
android:layout_width="24dp"
android:layout_height="24dp"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_marginTop="4dp"
android:layout_marginRight="16dp" />
</RelativeLayout>
</android.support.v7.widget.Toolbar>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#ff9800" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.DrawerLayout
android:id="#+id/myDrawer"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="#+id/fragment_container_dashboard"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<include layout="#layout/bottom_nav" />
<android.support.design.widget.NavigationView
android:id="#+id/nav"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#color/colorPrimary"
app:headerLayout="#layout/nav_header"
app:itemBackground="#drawable/drawer_item_bg"
app:itemIconTint="#color/white"
app:itemTextColor="#color/white"
app:menu="#menu/my_menu">
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
</RelativeLayout>
</LinearLayout>
// Bottom Navigation Bar Code:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_above="#+id/bottomNavi"
android:background="#ff9800"></View>
<android.support.design.widget.BottomNavigationView
android:id="#+id/bottomNavi"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_gravity="bottom"
android:background="#color/colorPrimary"
app:itemIconTint="#color/botto_nav_color"
app:itemTextColor="#color/botto_nav_color"
app:menu="#menu/bottom_nav_menu"/>
</RelativeLayout>
I want the frame layout to remain below the toolbar and above the bottom navigation bar.
But what happens, is the frame layout is below the toolbar, but the frame layout is behind the bottom navigation bar.

Try this:
<FrameLayout
android:id="#+id/fragment_container_dashboard"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="56dp"
android:layout_above="#+id/nav" />
<include android:id="#+id/nav"
layout="#layout/bottom_nav" />

My approach would be to wrap the wrap the bottom navigation Layout you included in a LinearLayout and then wrap the FrameLayout and the new layout containing the bottom navigation bar in a relative layout then position the frame layout above the bottom navigation bar layout such that:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="#+id/fragment_container_dashboard"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="56dp"
android:layout_above="#id/bnve"/>
<LinearLayout
android:id="#+id/bnve"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<include layout="#layout/bottom_nav" />
</LinearLayout>
</RelativeLayout>

try to place this include tag above Framelayout like
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.DrawerLayout
android:id="#+id/myDrawer"
android:layout_width="match_parent"
android:layout_height="match_parent">
<include layout="#layout/bottom_nav" />
<FrameLayout
android:id="#+id/fragment_container_dashboard"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="56dp" />

sorry for late answer.. Can you try this ?
<include
android:layout_alignParentBottom="true"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
layout="#layout/bottom_nav" />

How to create an extended toolbar in Android with an EditText at the bottom

I am trying to create a toolbar in Android that is 2x in height of the normal toolbar, and has an EditText in the lower half portion.
Currently, I have the XML code (note the android:layout_height="128dp"):
<RelativeLayout
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.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:title="Messages"
android:titleTextColor="#color/windowBackground"
android:background="#color/buttonBackground"
android:layout_height="128dp"
android:layout_width="match_parent"
android:minHeight="?android:attr/actionBarSize"
android:gravity="bottom" />
<fragment
android:id="#+id/no_activity_fragment"
class="com.ohmd.ohmd.ui.main.MainActivityListFragment"
android:name="com.ohmd.ohmd.ui.main.MainActivityListFragment"
android:layout_below="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="fill_parent"/>
</RelativeLayout>
This is what it looks like (with no EditText yet):
So a few problems that I'm stuck on:
(a) How can I get the "Messages" to align to the top where it does when the height is set to "?android:attr/actionBarSize"?
(b) Aftter moving the title up, how can I add an EditText view in the lower half?
This is what I am hoping to acheive:

Got it with:
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:title="Messages"
android:titleTextColor="#color/windowBackground"
android:background="#color/buttonBackground"
android:layout_width="match_parent"
android:layout_height="?android:attr/actionBarSize"
android:gravity="center" />
<RelativeLayout
android:orientation="vertical"
android:background="#color/buttonBackground"
android:layout_height="?android:attr/actionBarSize"
android:layout_below="#+id/toolbar"
android:id="#+id/card_view"
android:layout_width="match_parent"
android:gravity="center">
<EditText
android:layout_margin="10dp"
android:id="#+id/tvSection"
android:background="#color/buttonBackgroundSelected"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:gravity="center"/>
</RelativeLayout>

Well, you could try changing the toolbar gravity to
android:gravity="top"
If that doesn't work, you could get rid of the "title" and add a TextView to the toolbar like this:
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="128dp"
android:background="#color/buttonBackground"
android:gravity="top"
android:minHeight="?android:attr/actionBarSize"
android:titleTextColor="#color/windowBackground"/>
<TextView
android:id="#+id/button_save"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="top|left"
android:text="Messages"
android:textColor="#color/buttonBackground"/>
</android.support.v7.widget.Toolbar>