Open Location Service

using (var unityClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
        using (AndroidJavaObject currentActivityObject =
            unityClass.GetStatic<AndroidJavaObject>("currentActivity"))
        using (var intentObject = new AndroidJavaObject(
            "android.content.Intent", "android.settings.LOCATION_SOURCE_SETTINGS"))
        {
            currentActivityObject.Call("startActivity", intentObject);
        }