Android加载中转圈动画效果

[{"title":"（ 120 个子文件 1.13MB ） Android加载中转圈动画效果","children":[{"title":"build.gradle <span style='color:#111;'> 656B </span>","children":null,"spread":false},{"title":"AndroidManifest.xml <span style='color:#111;'> 887B </span>","children":null,"spread":false},{"title":"dimens.xml <span style='color:#111;'> 167B </span>","children":null,"spread":false},{"title":"loading.xml <span style='color:#111;'> 1.25KB </span>","children":null,"spread":false},{"title":"activity_main.xml <span style='color:#111;'> 892B </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多，未全部展示</span>","children":null,"spread":false}],"spread":true}]