android - How to add press effect or selector indicator to astuetz/PagerSlidingTabStrip? -

i used astuetz library , implemented pagerslidingtabstrip android application, it's working find. want change pressing effect, tried:

android:background="@drawable/tab_selecor" 

code tab selector:

<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android">     <item android:drawable="@color/darkgreen" android:state_focused="true" android:state_pressed="true" />     <item android:drawable="@color/darkgreen" android:state_focused="false" android:state_pressed="true" />     <item android:drawable="@color/green" /> </selector> 

the press colour suppose changed dark green see not change, still looks if use colour red, yellow, .... .

make use of setindicatorcolor() setting color of indicator , setindicatorheight() setting height

and make use of settabbackground() method set background tab

use drawable tab background

<?xml version="1.0" encoding="utf-8"?>  <selector  xmlns:android="http://schemas.android.com/apk/res/android">  <!-- active tab -->  <item  android:state_selected="true"  android:state_focused="false"      android:state_pressed="false"  android:drawable="@color/red" /> <!-- inactive tab -->  <item  android:state_selected="false"  android:state_focused="false"      android:state_pressed="false"  android:drawable="@android:color/black" />  <!-- pressed tab -->  <item  android:state_pressed="true"  android:drawable="@android:color/transparent" />  <!-- selected tab (using d-pad) -->  <item  android:state_focused="true"  android:state_selected="true"      android:state_pressed="false"  android:drawable="@android:color/transparent" />  </selector>