<?xml version="1.0" encoding="utf-8"?>

<android.support.percent.PercentRelativeLayout
    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="@color/colorPrimary"
    tools:context=".MainActivity"
    android:id="@+id/bgl0">


    <android.support.v7.widget.Toolbar
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:id="@+id/my_toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:theme="@style/ThemeOverlay.AppCompat.ActionBar"
        app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/>

    <android.support.percent.PercentRelativeLayout
        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:id="@+id/bgl"
        android:layout_marginTop="168px">

        <android.support.percent.PercentRelativeLayout
            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="fill_parent"
            android:layout_height="wrap_content"
            tools:context=".MainActivity"
            android:id="@+id/bg999"
            android:layout_above="@+id/custom_list"
            android:layout_marginTop="168px">

            <Button
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:text="Start"
                android:id="@+id/button"
                android:layout_alignTop="@+id/buttonP"
                android:layout_centerHorizontal="true"
                app:layout_widthPercent="40%" />
                <!-- android:background="@drawable/border" -->

            <Button
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:text="&lt;&lt;"
                android:id="@+id/buttonP"
                android:layout_alignParentLeft="true"
                android:layout_alignLeft="@+id/button"
                app:layout_widthPercent="30%" />

            <Button
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:text="&gt;&gt;"
                android:id="@+id/buttonN" app:layout_widthPercent="30%"
                android:layout_alignParentRight="true"
                android:layout_alignRight="@+id/button"/>
                <!--android:layout_above="@+id/custom_list"
                android:layout_alignRight="@+id/custom_list" -->

        </android.support.percent.PercentRelativeLayout>


        <ListView
            android:id="@+id/custom_list"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:dividerHeight="1dp"
            android:layout_weight="0.5" />

    </android.support.percent.PercentRelativeLayout>

</android.support.percent.PercentRelativeLayout>