BluetoothLeScanner.startScan with Android 6.0 does not discover devices

Question

I\'m trying to use the function BluatoothLeScanner.startScan instead of the deprecated one BluetoothAdapter.startLeScan. Yesterday I updated my Nexus 5 to

Answer 1

It's an old question, but I will answer to help someone.
Unfortunately, the combination of ACCESS_COARSE_LOCATION and targetSdkVersion 22 does not work on some devices.
This is not a good method, but I have solved it in the following way without using runtime permissions (ACCESS_COARSE_LOCATION or ACCESS_FINE_LOCATION)

1. Set your 'targetSdkVersion' to 19 (I think maybe api19 ~ api22 will be possible)

2. Add the following permission to your manifest file

tested to Android 4.4 ~ 7.1.1