android custom radio button not getting checked

Question

I have created radio group with custom layout i.e. custom button.

Answer 1

Its the android:button="@null", please remove it from the xml file completely. Try using this simple xml layout.

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

    <RadioGroup
        android:id="@+id/radio_group_rating"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"  >

        <RadioButton
            android:id="@+id/radio_platinum"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="platinum" />

        <RadioButton
            android:id="@+id/radio_gold"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="gold" />

        <RadioButton
            android:id="@+id/radio_silver"
           android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="silver" />
        </RadioGroup>

    <Button
        android:id="@+id/btn_submit"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:text="submit" />
</LinearLayout>

Answer 2

Only difference to my code is that I don't put clickable="true" in xml, if RadioGroup handles touch event by itself to manage child radio buttons you should remove that attribute as clickable is generally set to true automatically when you set an OnClickListener.