How do I change the theme on an Android application? -

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i'm developing android application , want change color , theme of application. how can this?

dev guide explains how apply themes , styles.

this:

<textview     android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:textcolor="#00ff00"     android:typeface="monospace"     android:text="@string/hello" />

becomes this:

<textview     style="@style/codefont"     android:text="@string/hello" />

by defining xml theme file:

<?xml version="1.0" encoding="utf-8"?> <resources>     <style name="codefont" parent="@android:style/textappearance.medium">         <item name="android:layout_width">fill_parent</item>         <item name="android:layout_height">wrap_content</item>         <item name="android:textcolor">#00ff00</item>         <item name="android:typeface">monospace</item>     </style> </resources>

you can apply styles activities of application:

<application android:theme="@style/customtheme">

or 1 activity:

<activity android:theme="@android:style/theme.dialog">

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