Is it possible to change the radio button icon in an android radio button group

I am wanting to allow the user of my android application the ability to set some parameters. The radio button is ideal for this situation. However, I don't like the radio buttons are rendered.

Is it possible to change the radio button icon? For example, is it possible to create a custom layout for each row and in that layout reference my own icon and change the font et al.

Yes that's possible you have to define your own style for radio buttons, at res/values/styles.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="CustomTheme" parent="android:Theme">
   <item name="android:radioButtonStyle">@style/RadioButton</item>
</style>
<style name="RadioButton" parent="@android:style/Widget.CompoundButton.RadioButton">
   <item name="android:button">@drawable/radio</item>
</style>
</resources>

'radio' here should be a stateful drawable, radio.xml:

    <?xml version="1.0" encoding="utf-8"?>
    <selector xmlns:android="http://schemas.android.com/apk/res/android">
	<item android:state_checked="true" android:state_window_focused="false"
		android:drawable="@drawable/radio_hover" />
	<item android:state_checked="false" android:state_window_focused="false"
		android:drawable="@drawable/radio_normal" />
	<item android:state_checked="true" android:state_pressed="true"
		android:drawable="@drawable/radio_active" />
	<item android:state_checked="false" android:state_pressed="true"
		android:drawable="@drawable/radio_active" />
	<item android:state_checked="true" android:state_focused="true"
		android:drawable="@drawable/radio_hover" />
	<item android:state_checked="false" android:state_focused="true"
		android:drawable="@drawable/radio_normal_off" />
	<item android:state_checked="false" android:drawable="@drawable/radio_normal" />
	<item android:state_checked="true" android:drawable="@drawable/radio_hover" />
    </selector>

Then just apply the Custom theme either to whole app or to activities of your choice.

For more info about themes and styles look at http://brainflush.wordpress.com/2009/03/15/understanding-android-themes-and-styles/ that is good guide.

You can put custom image in radiobutton like normal button. for that create one XML file in drawable folder e.g

<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/sub_screens_aus_hl" 
	android:state_pressed="true"/>  
<item android:drawable="@drawable/sub_screens_aus" 
	android:state_checked="true"/>  
<item android:drawable="@drawable/sub_screens_aus" 
	android:state_focused="true" />
<item android:drawable="@drawable/sub_screens_aus_dis" />  
</selector> 

Here you can use 3 different images for radiobutton

and use this file to RadioButton like:

android:button="@drawable/aus"
android:layout_height="120dp"
android:layout_width="wrap_content" 

The easier way to only change the radio button is simply set selector for drawable right

<RadioButton
    ...
    android:button="@null"
    android:checked="false"
    android:drawableRight="@drawable/radio_button_selector" />

And the selector is:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/ic_checkbox_checked" android:state_checked="true" />
    <item android:drawable="@drawable/ic_checkbox_unchecked" android:state_checked="false" /></selector>

That's all

yes....` from Xml

android:button="@drawable/yourdrawable" 

and from Java

myRadioButton.setButtonDrawable(resourceId or Drawable);

`

Here's probably a quick approach,

With two icons shown above, you shall have a RadioGroup something like this

• change the RadioGroup's orientation to horizontal
• for each RadioButton's Properties, try giving the icon for Button under CompoundButton,
• adjust the Padding and size,
• and set the Background attribute when checked.

In case you want to do it programmatically,

checkBoxOrRadioButton.setButtonDrawable(null);
checkBoxOrRadioButton.setBackgroundResource(R.drawable.resource_name);