android - 这样的效果怎么画，大神们求救

Question

动态口令，在5秒倒计时时会出现个小圆，这个要怎么画或者有第三方的库也行，求大神指点

Answer 1

You can refer to this: https://github.com/passsy/android-HoloCircularProgressBar

Answer 2

Circular progress bar? You can refer to this
http://blog.csdn.net/Beyond0525/article/details/48181345