android10/cells/switchsystem/res/drawable/dialog_loading.xml

<?xml version="1.0" encoding="utf-8"?>
<animated-rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:drawable="@drawable/dialog_loading_img"
    android:pivotX="50%"
    android:pivotY="50%" />


<!-- 下面是转圈的
<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:drawable="@drawable/dialog_loading_img2"
    android:fromDegrees="0"
    android:pivotX="50%"
    android:pivotY="50%"
    android:toDegrees="360" />
-->