styling v21 compatibility android actionbar

1)src_MainActivity.java

package com.doodkin.example;

import android.support.v7.app.ActionBarActivity;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;

public class MainActivity extends ActionBarActivity  {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		//add icon of application to actionbar (up button):
		getSupportActionBar().setHomeAsUpIndicator(R.drawable.ic_launcher); 
		getSupportActionBar().setDisplayHomeAsUpEnabled(true);
		
		setContentView(R.layout.activity_main);
	}
}

2,3)values_styles.xml

<resources xmlns:android="http://schemas.android.com/apk/res/android">

    <!--
        Base application theme, dependent on API level. This theme is replaced
        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
    -->
    <style name="AppBaseTheme" parent="Theme.AppCompat.Light" >
        <!--
            Theme customizations available in newer API levels can go in
            res/values-vXX/styles.xml, while customizations related to
            backward-compatibility can go here.
            
 		  <item name="android:windowNoTitle">true</item>
         -->
     
    </style>


    <!-- Application theme. -->
    <style name="AppTheme" parent="AppBaseTheme">
        <!-- All customizations that are NOT specific to a particular API-level can go here. -->

	<item name="colorPrimary">@color/primary</item>
        <item name="colorPrimaryDark">@color/primary_dark</item>
        <item name="colorAccent">@color/accent</item>
        <item name="android:textColorPrimary">@color/text_primary</item>
        <item name="android:textColor">@color/text_secondary</item>
        <!-- <item name="android:navigationBarColor">@color/primary_dark</item> // v21-->
        <item name="actionOverflowButtonStyle">@style/MyActionButtonOverflow</item>
    </style>
    
    <!--set image to settings menu button-->
    <style name="MyActionButtonOverflow" parent="android:style/Widget.Holo.ActionButton.Overflow">
    	<item name="android:src">@drawable/small_menu_button</item>
    	<item name="android:scaleType">centerInside</item>
    	<item name="android:paddingTop">14dp</item>
    	<item name="android:paddingBottom">14dp</item>
	</style>
</resources>

4)menu_menu.xml

<menu 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"
    tools:context="com.doodkin.example.MainActivity"
    android:icon="@drawable/ic_launcher"
    
 >
    
    <!--
    add icons (buttons) to actionbar:
    show as action means show icon
    never means stash it in all others that not fit in scree
    n -->
   <item android:id="@+id/action_vibration"
          android:icon="@drawable/small_vibration_button_on"
          android:title="@string/action_vibration"
          app:showAsAction="always"/>
   
    <item android:id="@+id/action_openfile"
          android:title="@string/action_openfile"
          app:showAsAction="never"/>
    
    <item android:id="@+id/action_exitplay"
          android:title="@string/action_exitplay"
          android:visible="false"
          app:showAsAction="always"/>
    
    <item
        android:id="@+id/action_settings"
        android:orderInCategory="100"
        android:title="@string/action_settings"
        app:showAsAction="never"/>

</menu>

5)values_colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="primary">#f2f2f2</color>
    <color name="primary_dark">#f2f2f2</color>
    <color name="accent">#D9D9D9</color>
    <color name="text_primary">#D9000000</color>
    <color name="text_secondary">#D9000000</color>
    <!--
     original from example(blue),(my is light gray header and light gray body):
     
    <color name="primary">#673ab7</color>
    <color name="primary_dark">#512da8</color>
    <color name="accent">#ffc400</color>
    <color name="text_primary">#D9FFFFFF</color>
    <color name="text_secondary">#D9000000</color> 
     -->
</resources>

6)values-v21_styles.xml

<resources>

    <!--
        Base application theme for API 14+. This theme completely replaces
        AppBaseTheme from BOTH res/values/styles.xml and
        res/values-v11/styles.xml on API 14+ devices.
    -->

    
    <style name="AppBaseTheme" parent="Theme.AppCompat.Light">
        <!-- API 21 theme customizations can go here. -->
        
        <item name="android:navigationBarColor">@color/primary_dark</item>
    </style>

</resources>