您可能正在遇到Android 7中新出现的未记录的行为更改，这些更改阻止了应用程序进行过于频繁的扫描.

You are probably running into the new and undocumented behavior changes in Android 7 that prevent apps from scanning too often.

我写了一篇关于它的博客文章: https://blog.classycode.com/undocumented-android-7 -ble-behavior-changes-d1a9bd87d983

I wrote a blog post about it: https://blog.classycode.com/undocumented-android-7-ble-behavior-changes-d1a9bd87d983