<?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"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/background_light"
    android:fitsSystemWindows="true"
    >
<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:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

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

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:weightSum="6"
        android:orientation="horizontal"
        android:paddingTop="8dp"
        android:paddingBottom="8dp">

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:orientation="vertical"
            android:weightSum="3">
            <ImageView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:srcCompat="@drawable/ic_person_pin_circle_white_24dp"
                android:id="@+id/imageView4"
                android:layout_weight="1"/>
            <ImageView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:srcCompat="@drawable/ic_more_vert_white_24dp"
                android:id="@+id/imageView5"
                android:layout_weight="1"/>
            <ImageView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:srcCompat="@drawable/ic_place_white_24dp"
                android:id="@+id/imageView6"
                android:layout_weight="1"/>
        </LinearLayout>

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="4"
            android:orientation="vertical">
            <EditText
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:inputType="textPersonName"
                android:hint="Enter source address"
                android:ems="10"
                android:id="@+id/sourceAddr"
                android:textAppearance="@android:style/TextAppearance.Material.Large"
                android:textSize="20sp" />

            <EditText
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:inputType="text"
                android:ems="10"
                android:hint="Enter target address"
                android:id="@+id/targetAddr"
                android:textAppearance="@android:style/TextAppearance.Material.Large"
                android:textSize="20sp" />
        </LinearLayout>

        <RelativeLayout
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:orientation="vertical">
            <ImageButton
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_centerInParent="true"
                app:srcCompat="@drawable/ic_swap_vert_white_36dp"
                android:background="@android:color/transparent"
                android:id="@+id/imageButton2" />
        </RelativeLayout>
    </LinearLayout>

    </android.support.design.widget.AppBarLayout>
    <WebView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentTop="true"
        android:layout_alignParentStart="true"
        android:id="@+id/webView" >
    </WebView>
</LinearLayout>
    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|right"
        android:layout_margin="@dimen/fab_margin"
        android:layout_weight="1"
        android:adjustViewBounds="false"
        app:fabSize="normal"
        android:src="@drawable/ic_search_white_36dp" />

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