RadioButton ---- 样式效果切换

\res\drawable\radio_button_bg.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@drawable/raido_button_checked"
        android:state_checked="true"/>
    <item android:drawable="@android:color/transparent" />

</selector>

\res\values\strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">RadioButtonDemo</string>
    <string name="hello_world">Hello world!</string>
    <string name="menu_settings">Settings</string>
    <string name="radio_button_1">JAVA</string>
    <string name="radio_button_2">ASP.NET</string>
    <string name="radio_button_3">P H P</string>
</resources>

\res\values\styles.xml

    <style name="RadioButtonStyles">
        <item name="android:layout_gravity">center_vertical</item>
        <item name="android:layout_height">fill_parent</item>
        <item name="android:layout_width">wrap_content</item>
        <item name="android:layout_weight">1</item>
        <item name="android:button">@null</item>
        <item name="android:background">@drawable/radio_button_bg</item>
        <item name="android:gravity">center</item>
    </style>

\res\menu\activity_radio_button_demo.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android" >
    <item
        android:id="@+id/menu_settings"
        android:orderInCategory="100"
        android:showAsAction="never"
        android:title="@string/menu_settings"/>
</menu>

\res\layout\activity_radio_button_demo.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <RadioGroup
        android:id="@+id/radioGroup1"
        android:layout_width="fill_parent"
        android:layout_height="50dp"
        android:background="@drawable/x_proposal_tab_bg"
        android:orientation="horizontal" >

        <RadioButton
            android:id="@+id/radio0"
            style="@style/RadioButtonStyles"
            android:text="@string/radio_button_1" />

        <RadioButton
            android:id="@+id/radio1"
            style="@style/RadioButtonStyles"
            android:text="@string/radio_button_2" />

        <RadioButton
            android:id="@+id/radio2"
            style="@style/RadioButtonStyles"
            android:text="@string/radio_button_3" />
    </RadioGroup>

</RelativeLayout>

RadioButtonDemoActivity.java

public class RadioButtonDemoActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_radio_button_demo);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_radio_button_demo, menu);
        return true;
    }

}

DEMO下载地址：http://download.csdn.net/detail/androidsj/5865317