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thanks, very nice!! i only had to face adding com.google.android.gms:play-services:9.2.1 (not com.google.android.ms:play-services:8-4-0) and all other gradle stuff. In code there is some problem with setResultCallback: in onResult an argumaent should be with type Result (not LocationSettingsResult), you can cast it afterwards. My only unsolved problem with turning GPS off, how can i do it???