BluetoothLeScanner on android 6.0.1 (ss s6 edge) cannot found device android >= 6.0.1 about android-scanner-compat-library HOT 3 CLOSED

Hi, Since Marshmallow you have to request Location permission (fine or coarse) in order to scan for Bluetooth LE devices. This is a Runtime permission, so you have to ask user to allow.
Check out this link: https://developer.android.com/training/permissions/requesting

Bluetooth LE devices, like beacons, can reveal phone's location. That's why user needs to allow it. Also, on most devices the Location must be enabled in the phone.

from android-scanner-compat-library.

Thanks you for response, philips77. But in AndroidManifest file, i requested Location permission as following:
uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
uses-permission android:name="android.permission.BLUETOOTH" />
uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />

But App only scan device android < 6.0.1, cannot scan device Sony Xperia Z3 android 6.0.1.

from android-scanner-compat-library.

That's a Runtime permission. You have to request it from the app, not only in the manifest. Read the link i have above.

from android-scanner-compat-library.