progressbar原始效果

<?xml version="1.0" encoding="utf-8"?>
<animated-rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromDegrees="0"
    android:pivotX="50%"
    android:pivotY="50%"
    android:toDegrees="360">
    <shape
        android:innerRadiusRatio="3"
        android:shape="ring"
        android:thicknessRatio="8"
        android:useLevel="false">
        <gradient
            android:centerColor="#B26BD3FF"
            android:centerY="0.50"
            android:endColor="#FF6BD3FF"
            android:startColor="#006BD3FF"
            android:type="sweep"
            android:useLevel="false" />
    </shape>
</animated-rotate>

  <ProgressBar
        android:id="@+id/pb_progress"
        android:layout_width="24dp"
        android:layout_height="24dp"
        android:indeterminateDrawable="@drawable/easy_recycler_footer_progress" />