app/src/main/res/drawable/circular_progress_spinner.xml
<?xml version="1.0" encoding="utf-8"?>
<rotate
xmlns:android="http://schemas.android.com/apk/res/android"
android:pivotX="50%"
android:pivotY="50%"
android:fromDegrees="90"
android:toDegrees="360">
<shape
android:innerRadiusRatio="3"
android:shape="ring"
android:thicknessRatio="7.0">
<gradient
android:centerColor="#000000"
android:endColor="#000000"
android:startColor="#000000"
android:angle="0"
android:type="sweep"
android:useLevel="false" />
</shape>
</rotate>