RadioButton 'android:button' does nothing

Issue

I've tried to change the drawable of the checked button on a RadioButton but nothing is showing; setting the drawable just removes the default one that is already there.

I used stack overflow to try find a solution but when I try to implement it, there is not drawable showing up. My selector appears to be fine because when I set the background of the radio button that displays my circles.

I'm sure it's a very obvious problem which I'll slap myself for not seeing; can anyone figure out what is wrong?

My Radio Buttons

    <RadioGroup
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <RadioButton
            android:id="@+id/radio0"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Left"
            android:checked="false"
            android:button="@drawable/radio_button" />
        <RadioButton
            android:id="@+id/radio1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:button="@drawable/radio_button"
            android:text="Right"
            android:checked="true" />
    </RadioGroup>

With my selector

Without my selector

My Selector XML

<?xml version="1.0" encoding="UTF-8" ?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
    <item
        android:drawable="@drawable/radio_button_checked"
        android:state_checked="true" />
    <item
        android:drawable="@drawable/radio_button_unchecked" />
</selector>

radio_button_checked.xml

<?xml version="1.0" encoding="UTF-8" ?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">
    <solid android:color="@color/primary_button_color"/>
    <stroke
        android:width="2px"
        android:color="#000000"/>
</shape>

radio_button_unchecked.xml

<?xml version="1.0" encoding="UTF-8" ?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">
    <stroke
        android:width="2px"
        android:color="#000000"/>
</shape>

Solution

I think you can't see anything because your drawable don't have any size.

Try to define <size android:width="60dp" android:height="60dp"/> under the shape of your xml.

Answered By - Eselfar