Create custom Theme inheriting properties from build-in Theme

Refer from the previous posts:
- Create style using Android Resources Tools
- Create style inheriting properties from another style
- Apply style on whole application/activity as theme
- Using Android build-in theme

We can create our custom Theme, by inheriting properties from build-in Theme.


Create(or modify from previous post) /res/values/mystyle.xml, create our custom style (MyStyle) from build-in "@android:style/Theme.Dialog".

<?xml version="1.0" encoding="utf-8"?>
<resources>
   <style name="MyStyle"
       parent="@android:style/Theme.Dialog">
       <item name="android:layout_width">wrap_content</item>
       <item name="android:layout_height">wrap_content</item>
       <item name="android:textColor">#AAA</item>
       <item name="android:textSize">18dip</item>
       <item name="android:background">#222</item>
       <item name="android:padding">5dip</item>
   </style>
   <style name="MyStyle.GreenBold">
       <item name="android:textColor">#00FF00</item>
       <item name="android:textStyle">bold</item>
   </style>
</resources>

Modify AndroidManifest.xml using theme of our custom style, "@style/MyStyle.GreenBold".

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
   package="com.AndroidStyle"
   android:versionCode="1"
   android:versionName="1.0" >

   <uses-sdk android:minSdkVersion="8" />

   <application
       android:icon="@drawable/ic_launcher"
       android:label="@string/app_name"
       android:theme="@style/MyStyle.GreenBold" >
       <activity
           android:name=".AndroidStyleActivity"
           android:label="@string/app_name" >
           <intent-filter>
               <action android:name="android.intent.action.MAIN" />

               <category android:name="android.intent.category.LAUNCHER" />
           </intent-filter>
       </activity>
   </application>

</manifest>

Main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:layout_width="fill_parent"
   android:layout_height="fill_parent"
   android:orientation="vertical" >

   <TextView
       android:layout_width="fill_parent"
       android:layout_height="wrap_content"
       android:text="@string/hello" />
   <TextView
       android:layout_width="fill_parent"
       android:layout_height="wrap_content"
       android:text="using Style inherit from Android's build-in theme" />
  
</LinearLayout>