http://www.sohu.com/a/142436167_611601
https://developer.android.com/guide/topics/search/index.html
progress bar color
https://blog.csdn.net/wzy_1988/article/details/49473725
http://www.sohu.com/a/142436167_611601
https://developer.android.com/guide/topics/search/index.html
progress bar color
https://blog.csdn.net/wzy_1988/article/details/49473725