protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate (bundle);

            SetContentView (Resource.Layout.SpeedBetweenNodes);

            settingsFile = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
            settingsFile = Path.Combine(settingsFile, "settings.txt");
            settings = JsonConvert.DeserializeObject<SettingsRecord> (File.ReadLines (settingsFile).First());

            speedSpinner = FindViewById<Spinner> (Resource.Id.speedSpinner);
            speedSpinner.ItemSelected += new EventHandler<AdapterView.ItemSelectedEventArgs> (speedSpinner_ItemSelected);
            var adapter = ArrayAdapter.CreateFromResource (this, Resource.Array.speed_array, Android.Resource.Layout.SimpleSpinnerItem);
            adapter.SetDropDownViewResource (Android.Resource.Layout.SimpleSpinnerDropDownItem);
            speedSpinner.Adapter = adapter;
            speedSpinner_Initialize ();

            btnApply = FindViewById<Button>(Resource.Id.btnApply2);
            btnApply.Click += delegate {
                if (settingsChanged()){
                    using (TextWriter tw = new StreamWriter(settingsFile,false)){
                        tw.WriteLine (JsonConvert.SerializeObject (settings));
                    }
                    if(isLoggerRunning()){
                        restartLogger();
                    }
                }
                Finish();
            };
        }
        private void CreateSettingsFile()
        {
            SettingsRecord settings = new SettingsRecord {
                useLocationLogging = true,
                timeBetweenUpdates = MINUTE * 4,
                timeBetweenUpdatesDense = MINUTE /2,
                speedLimit = 15 / 3.6
            };

            using (TextWriter tw = File.CreateText(settingsFile)){
                tw.WriteLine (JsonConvert.SerializeObject (settings));
            }
        }
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate (bundle);
            SetContentView (Resource.Layout.LocationUpdateDensity);

            settingsFile = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
            settingsFile = Path.Combine(settingsFile, "settings.txt");
            settings = JsonConvert.DeserializeObject<SettingsRecord> (File.ReadLines (settingsFile).First());

            //ZA DEBUG ISPIS LOCATIONS FILEA XAMARINU
            //string locationsFile;
            //locationsFile = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
            //locationsFile = Path.Combine(locationsFile, "locations.txt");
            //foreach (string location in File.ReadLines(locationsFile)) {
            //	Console.WriteLine (location);
            //}
            //ZAKOMENTIRATI

            toggleButton = FindViewById<Button>(Resource.Id.btnUseLogging);
            toggleButton.Text = isLoggerRunning ()?"Zapisivanje lokacija je uključeno":"Zapisivanje lokacija je isključeno";

            toggleButton.Click += delegate {
                if (toggleButton.Text == "Zapisivanje lokacija je isključeno"){
                    //pokreni snimanje lokaija ako već nije i updateaj settings file
                    if(!isLoggerRunning())
                        StartService (new Intent (this, typeof(LocationLogger)));
                    SettingsRecord currentSettings = JsonConvert.DeserializeObject<SettingsRecord> (File.ReadLines (settingsFile).First());
                    currentSettings.useLocationLogging = true;
                    using (TextWriter tw = new StreamWriter(settingsFile,false)){
                        tw.WriteLine (JsonConvert.SerializeObject (currentSettings));
                    }
                    toggleButton.Text = "Zapisivanje lokacija je uključeno";
                } else {
                    //zaustavi pozadinsko zapisivanje i updateaj settings file
                    StopService (new Intent (this, typeof(LocationLogger)));
                    SettingsRecord currentSettings = JsonConvert.DeserializeObject<SettingsRecord> (File.ReadLines (settingsFile).First());
                    currentSettings.useLocationLogging = false;
                    using (TextWriter tw = new StreamWriter(settingsFile,false)){
                        tw.WriteLine (JsonConvert.SerializeObject (currentSettings));
                    }
                    toggleButton.Text = "Zapisivanje lokacija je isključeno";
                }
            };

            normalSpinner = FindViewById<Spinner> (Resource.Id.normalSpinner);
            normalSpinner.ItemSelected += new EventHandler<AdapterView.ItemSelectedEventArgs> (normalSpinner_ItemSelected);
            var adapter = ArrayAdapter.CreateFromResource (this, Resource.Array.normal_density_array, Android.Resource.Layout.SimpleSpinnerItem);
            adapter.SetDropDownViewResource (Android.Resource.Layout.SimpleSpinnerDropDownItem);
            normalSpinner.Adapter = adapter;
            normalSpinner_Initialize ();

            denseSpinner = FindViewById<Spinner> (Resource.Id.denseSpinner);
            denseSpinner.ItemSelected += new EventHandler<AdapterView.ItemSelectedEventArgs> (denseSpinner_ItemSelected);
            adapter = ArrayAdapter.CreateFromResource (this, Resource.Array.high_density_array, Android.Resource.Layout.SimpleSpinnerItem);
            adapter.SetDropDownViewResource (Android.Resource.Layout.SimpleSpinnerDropDownItem);
            denseSpinner.Adapter = adapter;
            denseSpinner_Initialize ();

            btnApply = FindViewById<Button>(Resource.Id.btnApply1);
            btnApply.Click += delegate {
                if (settingsChanged()){
                    using (TextWriter tw = new StreamWriter(settingsFile,false)){
                        tw.WriteLine (JsonConvert.SerializeObject (settings));
                    }
                    if(isLoggerRunning()){
                        restartLogger();
                    }
                }
                Finish();
            };
        }