CircleRefreshLayoutAndroid 下拉刷新

CircleRefreshLayout 是一个自定义下拉刷新布局，包含有趣的动画效果。

用法：

<com.tuesda.walker.circlerefresh.CircleRefreshLayout        xmlns:app="http://schemas.android.com/apk/res-auto"
        app:AniBackColor="#ff8b90af"
        app:AniForeColor="#ffffffff"
        app:CircleSmaller="6"
        android:id="@+id/refresh_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <ListView
            android:background="#ffffffff"
            android:id="@+id/list"
            android:layout_width="match_parent"
            android:layout_height="match_parent"></ListView>
    </com.tuesda.walker.circlerefresh.CircleRefreshLayout>