Making Transparent Toolbar http://stackoverflow.com/questions/27532167/android-transparent-overlay-toolbar

passenger_map_screen.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- The important thing to note here is the added fitSystemWindows -->
<android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/my_drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    >

    <!-- Your normal content view -->
    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <!-- The rest of your content view -->

        <FrameLayout
            android:id="@+id/main_content"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#000"
            />

        <!-- We use a Toolbar so that our drawer can be displayed
      in front of the action bar -->
        <include
            android:theme="@style/ThemeOverlay.AppCompat.ActionBar"
            android:background="@android:color/transparent"
            layout="@layout/toolbar" />

    </FrameLayout>

    <!-- Your drawer view. This can be any view, LinearLayout
         is just an example. As we have set fitSystemWindows=true
         this will be displayed under the status bar. -->
    <LinearLayout
        android:layout_width="304dp"
        android:layout_height="match_parent"
        android:layout_gravity="left|start"
        android:fitsSystemWindows="true">

        <!-- Your drawer content -->

        <FrameLayout
            android:id="@+id/drawer_content"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            />


    </LinearLayout>

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

toolbar.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/my_awesome_toolbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="?attr/actionBarSize"

    app:theme="@style/ThemeOverlay.AppCompat.ActionBar"
    android:background="@android:color/transparent"
    >
    <!-- android:background="#ff1f5973" -->


    <RelativeLayout
        android:id="@+id/relativeLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

    <Button
        android:id="@+id/btnToggleToolbar"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:background="@drawable/menu"
        style="?android:attr/borderlessButtonStyle"
        />

    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Pick Up Location"
        android:textSize="20sp"
        android:textColor="#fff"
        android:layout_centerHorizontal="true"
        />

    </RelativeLayout>

</android.support.v7.widget.Toolbar>