android - how to set style for custom component? -

i have 2 modules:
app
- layout.xml
- styles.xml
- attrs.xml
core
- customcomponent.java

in module core there custom component, called customcomponent, use in app module , want set custom style, this

layout.xml

<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:customns="http://schemas.android.com/apk/res-auto"     ...     <com.example.customcomponent         android:id="@+id/chart"         android:layout_width="fill_parent"         android:layout_height="fill_parent"         customns:chart_style="@style/mycustomstyle"/>  </linearlayout 

styles.xml

<style name="mycustomstyle">     <item name="android:textcolor">#efefef</item>     <item name="android:background">#ffffff</item>     <item name="android:text">this text</item> </style> 

attrs.xml

<?xml version="1.0" encoding="utf-8"?> <resources>     <declare-styleable name="mycustomstyle">         <attr name="chart_style" format="reference"/>     </declare-styleable> </resources> 

customcomponent.java

public customcomponent(context context, attributeset attrs) {     super(context, attrs);     init(context);     typedarray ta = context.obtainstyledattributes(attrs, new int[] {r.attr.chart_style});     int[] attrss = {android.r.attr.textcolor, android.r.attr.background, android.r.attr.text};     **?????** } 

i achieve following result:

after set style
customns:chart_style="@style/mycustomstyle"
in customcomponent find style, parse , needed values.

but cannot find working code this.

could please advice how achieve such result?