// functions called when the back button is pressed
public override void OnBackPressed()
{
StopService(); // Stop the Location service if it running
MySettings.Save(mainsave);
base.OnBackPressed();
}
// Ok Button action for changing the Units
private void OkMeasurementAction(object sender, DialogClickEventArgs e)
{
if (ListPosition == 0)
{
// If switching from metric to Imperial then convert all the text on screen.
if (mainsave.Measurement == MySettings.MeasurementSystem.Metric)
{
MaxSpeedFloat = MaxSpeedFloat * .621371;
Speed = Speed * .621371;
MaxSpeed.Text = "Max Speed: " + MaxSpeedFloat.ToString("0.00") + " MPH";
speed.Text = "Speed: " + Speed.ToString("0.00") + " MPH";
elev = elev * 3.28; // Get the Ft Equivalent of Altitude's Meters
Altitude.Text = "Elevation: " + elev.ToString("0.0") + "Ft";
}
// Change unit system in the User settings
mainsave.Measurement = MySettings.MeasurementSystem.Imperial;
}
else
{
// If switching from imperial to metric then convert all the text on screen
if (mainsave.Measurement == MySettings.MeasurementSystem.Imperial)
{
MaxSpeedFloat = MaxSpeedFloat * 1.60934;
Speed = Speed * 1.60934;
MaxSpeed.Text = "Max Speed: " + MaxSpeedFloat.ToString("0.00") + " KPH";
speed.Text = "Speed: " + Speed.ToString("0.00") + " KPH";
elev = elev * .3048;
Altitude.Text = "Elevation: " + elev.ToString("0.0") + "m";
}
// Change unit system in user settings
mainsave.Measurement = MySettings.MeasurementSystem.Metric;
}
MySettings.Save(mainsave);
}
public static MySettings Load()
{
Stream stream = null;
MySettings Profile = null;
try
{
IFormatter formatter = new BinaryFormatter();
stream = new FileStream(Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal), "mcbsettings.mcb92"), FileMode.Open, FileAccess.Read, FileShare.None);
int version = (int)formatter.Deserialize(stream);
Profile = (MySettings)formatter.Deserialize(stream);
}
catch
{
// do nothing, just ignore any possible errors
System.Diagnostics.Debug.WriteLine("DID NOT LOAD CORRECTLY");
}
finally
{
if (null != stream)
{
stream.Close();
}
}
return(Profile);
}
public static void Save(MySettings set)
{
Stream stream = null;
try
{
IFormatter formatter = new BinaryFormatter();
stream = new FileStream(Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal), "mcbsettings.mcb92"), FileMode.Create, FileAccess.Write, FileShare.None);
formatter.Serialize(stream, VERSION);
formatter.Serialize(stream, set);
System.Diagnostics.Debug.WriteLine("CREATED A SAVE FILE");
}
catch
{
// No Save File Created
System.Diagnostics.Debug.WriteLine("DID NOT CREATE A SAVE FILE");
}
finally
{
if (null != stream)
{
stream.Close();
}
}
}
private readonly System.Threading.Timer _timer; // timer used in polling the update data
// Create a Layer that will update the position of the rater using a DynamicMemoryProvider
public AnimatedPointsWithAutoUpdateLayer(ref MySettings settings)
: base(new DynamicMemoryProvider())
{
Style = new SymbolStyle {
Fill = { Color = settings.ReturnColor() }, SymbolScale = .5
}; // Set the symbol color and size used to represent the Vehicle on the map
_timer = new System.Threading.Timer(arg => UpdateData(), this, 0, 3000); // Set the timer to update the data from DynamicMemoryProvider
}
public static Map CreateMap(ref MySettings Settings)
{
Map map = new Map(); // Declare the map variable
map.Layers.Add(OpenStreetMap.CreateTileLayer()); // Create map after determining if there is an offline or online one available
map.Layers.Add(new AnimatedPointsWithAutoUpdateLayer(ref Settings)
{
Name = "Vehicle Location"
}); // Create the Layer for the Raters Location and add it Layers
return(map); // Return the map
}
// Called when the user clicks on OK for the Color selector dialog
private void OkColorAction(object sender, DialogClickEventArgs e)
{
// Change color in user settings
mainsave.color = mainsave.List2DotColor(ListPosition);
// Save user settings
MySettings.Save(mainsave);
// Change the dot on the map to the new color
mapCtrl.Map.Layers[1].Style = new SymbolStyle {
Fill = { Color = mainsave.ReturnColor() }, SymbolScale = .4
};
}
// Checks if we have GPS permissions
private void FirstRun()
{
const string PREFS_NAME = "PrefsFile";
const string PrefVersionCodeKey = "version_code";
int DoesntExist = -1;
// Get Current Version of Application
int currentVersionCode = Application.Context.PackageManager.GetPackageInfo(Application.Context.ApplicationContext.PackageName, 0).VersionCode;
ISharedPreferences prefs = GetSharedPreferences(PREFS_NAME, FileCreationMode.Private);
int savedVersionCode = prefs.GetInt(PrefVersionCodeKey, DoesntExist);
// If current version then its a normal run.
if (currentVersionCode == savedVersionCode)
{
mainsave = MySettings.Load();
}
else if (savedVersionCode == DoesntExist)
{
// New Install or User Cleared Shared Preferences
mainsave = new MySettings();
MySettings.Save(mainsave);
}
else if (currentVersionCode > savedVersionCode)
{
mainsave = MySettings.Load();
// Upgrade of Application
}
// Update shared preferences with current version code
prefs.Edit().PutInt(PrefVersionCodeKey, currentVersionCode).Apply();
if (CheckSelfPermission(Android.Manifest.Permission.AccessFineLocation) != (int)Permission.Granted)
{
System.Threading.Tasks.Task.Run(() =>
{
RequestPermissions(new string[] { Android.Manifest.Permission.AccessFineLocation }, 1);
}).ConfigureAwait(true);
speed.Text = "Location Service Needs to Be Allowed";
}
else
{
AllowMapToLoad = true;
}
}
// Gets called after OnCreate() according to Android Lifecycle. Checks and Starts Location service if allowed
protected override void OnResume()
{
mainsave = MySettings.Load();
if (AllowMapToLoad == true) // If Location Service is Allowed
{
LocService(); // Start Location Service
}
System.Threading.Tasks.Task.Run(() =>
{
mapCtrl.Map = MapFunctions.CreateMap(ref mainsave); // Create the Map
mapCtrl.Map.NavigateTo(18); // Set Inital Zoom Level to be Fairly Close
});
if (mainsave.Measurement == MySettings.MeasurementSystem.Imperial)
{
MaxSpeed.Text = "Max Speed: " + MaxSpeedFloat + " MPH";
}
else
{
MaxSpeed.Text = "Max Speed: " + MaxSpeedFloat + " KPH";
}
base.OnResume();
}
// Will Stop location service when user switches to another app. OnResume will be called to restart location service if the navigate back
protected override void OnPause()
{
StopService();
MySettings.Save(mainsave);
base.OnPause();
}