[android] Changing background color of selected item in recyclerview

Create a selector into Drawable folder:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
<item android:state_pressed="true">
   <shape>
         <solid android:color="@color/blue" />
   </shape>
</item>

<item android:state_pressed="false">
    <shape>
       <solid android:color="@android:color/transparent" />
    </shape>
</item>
</selector>

Add the property into your xml (where you declare the RecyclerView):

android:background="@drawable/selector"

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