仿IOS等待菊花效果

1.添加菊花图片

2.添加旋转动画

xml version="1.0" encoding="utf-8"?>
xmlns:android="http://schemas.android.com/apk/res/android"
    android:drawable="@drawable/flower"
    android:pivotX="50.0%"
    android:pivotY="50.0%"
    android:fromDegrees="0"
    android:toDegrees="360">

3.布局中配置Progressbar

    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:indeterminateDrawable="@drawable/progress_flower"
    android:indeterminateBehavior="repeat"/>