Step 1: In res/drawable folder create a new file "selector_item_gradient.xml"
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="@drawable/gradient_pressed"/>
<item android:state_focused="true"
android:drawable="@drawable/gradient_focused"/>
<item android:state_selected="true"
android:drawable="@drawable/gradient_selected"/>
<item android:drawable="@drawable/gradient_normal"/>
</selector>
Step 2: In res/drawable create file "gradient_normal.xml" that is gray.
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient
android:startColor="#fffdfdfe"
android:centerColor="#ffe7e7e8"
android:endColor="#ffb1afa9"
android:angle="270"/>
</shape>
Step 3: in res/drawable create file "gradient_pressed.xml" that is orange or yellow.
<?xml version="1.0" encoding="utf-8"?>