Android: textColor of disabled button in selector not showing?

You need to also create a ColorStateList for text colors identifying different states.

Do the following:

1. Create another XML file in res\color named something like text_color.xml.

   <?xml version="1.0" encoding="utf-8"?>
   <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <!-- disabled state -->
     <item android:state_enabled="false" android:color="#9D9FA2" /> 
     <item android:color="#000"/>
   </selector>
   

2. In your style.xml, put a reference to that text_color.xml file as follows:

   <style name="buttonStyle" parent="@android:style/Widget.Button">
     <item name="android:textStyle">bold</item>
     <item name="android:textColor">@color/text_color</item>
     <item name="android:textSize">18sp</item>
   </style>
   

This should resolve your issue.