problem about require location permission

[nesteiner]

I am using the XiaoMi phone, when setting the permission of location, here are some options in the picture,

1. refuse
2. ask
3. only allowed in using
4. always allowed

I don't why when I choose only allowed in using is not supported in using this app, when choose the only allowed in using, the app shows

ps: how can I set the size of image, I hope you don't mind the large image

[adolfintel]

The app can't use BLE if you choose to allow only while using it, you have to give it full permission unfortunately.

Don't worry, the app doesn't spy on you, it doesn't even have internet access.

[nesteiner]

oh, I got it