Change the color of scroll bar

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List view or Scroll view, if you need to change the scroll bar, Just add below the lines.

Create the xml file in drawable folder,

scrollbar_thumbs.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >

     <gradient
        android:angle="45"
        android:centerColor="#1D862D"
        android:endColor="#4D8F57"
        android:startColor="#1D862D" />

     <corners android:radius="8dp" />

 </shape>

 Add this on your listview like that,

 android:scrollbarThumbVertical="@drawable/scrollbar_thumbs"

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