title: How to customize default theme of radio button in android?
body: <p>i want to change default theme of radio button to custom but it's not changing the theme. please help me out</p>
  
  <p>styles.xml</p>
  
  <pre><code>&lt;!-- Base application theme. --&gt;
  &lt;style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"&gt;
      &lt;!-- Customize your theme here. --&gt;
      &lt;item name="colorPrimary"&gt;@color/colorPrimary&lt;/item&gt;
      &lt;item name="android:radioButtonStyle"&gt;@style/radionbutton&lt;/item&gt;
  &lt;/style&gt;
  
  &lt;!-- custom style --&gt;
  &lt;style name="radionbutton"
       parent="Base.Widget.AppCompat.CompoundButton.RadioButton"&gt;
      &lt;item name="android:button"&gt;@drawable/radiobutton_drawable&lt;/item&gt;
  &lt;/style&gt;
  </code></pre>
  
  <p>radiobutton_drawable.xml</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;selector xmlns:android="http://schemas.android.com/apk/res/android" &gt;
  &lt;item android:state_checked="false" android:drawable="@mipmap/radio_unselected" &gt;
  &lt;/item&gt;
  &lt;item android:state_checked="true" android:drawable="@mipmap/radio_selected"&gt;
  &lt;/item&gt;
  </code></pre>
  
  <p></p>