How to define button background at one place and used around the whole app?

Question

I would like all the buttons of my android application use the same background image, that\'s all buttons have attribute:

android:background         


        

Answer 1

Define styles.xml with the below:

<?xml version="1.0" encoding="utf-8"?>
<resources>
  <style name="buttonStyle">
        <item name="android:layout_width">fill_parent</item>
        <item name="android:layout_height">wrap_content</item>
        <item name="android:background">@drawable/bg_button</item>
    </style>
</resources>

And use the same style for any button within your application as:

<Button 
    android:text="Test Button" 
    android:id="@+id/btnTest" 
    style="@style/buttonStyle">
</Button>

Answer 2

For Android styles, you reference the preset attributes of R.attr. Here, you want to to reference android:buttonStyle. You can try this :

<style name="ApplicationStyle" parent="android:Theme">
<item name="android:buttonStyle">@style/yourButton</item>
</style>

Also look in this Themes and Styles