public LocationUpdateHandler()
{
locationDependencyService = DependencyService.Get <ILocationService>();
startLocation = null;
trackedCoordinateItem = null;
trackedPlaceTypeItem = null;
}
public static bool IsInLocation(Location locationStart, CoordinateItem coordItem)
{
if (Location.CalculateDistance(locationStart, coordItem.Latitude, coordItem.Longitude, DistanceUnits.Kilometers) * 1000 <= coordItem.Radius)
{
return(true);
}
return(false);
}
public CoordinatesAddPage(CoordinateItem itemToEdit = null)
{
editingItem = itemToEdit;
pickerList = new List <string>();
pickerList.Add(Constants.washHands);
pickerList.Add(Constants.wearMask);
pickerList.Add(Constants.washHandsAndWearMask);
InitializeComponent();
}
async void OnItemToggle(object sender, ToggledEventArgs e)
{
if (_initial)
{
return;
}
Switch sw = sender as Switch;
CoordinateItem coordinateItem = sw.BindingContext as CoordinateItem;
await App.Database.SaveCoordinateAsync(coordinateItem);
}
async void OnItemTapped(object sender, ItemTappedEventArgs e)
{
CoordinateItem tappedCoordinateItem = e.Item as CoordinateItem;
bool answer = await DisplayAlert(tappedCoordinateItem.Name, tappedCoordinateItem.Details, "EDIT", "OK");
if (answer)
{
await Navigation.PushAsync(new CoordinatesAddPage(tappedCoordinateItem));
}
}
public Task <int> SaveCoordinateAsync(CoordinateItem coordinate)
{
if (coordinate.ID != 0)
{
return(_database.UpdateAsync(coordinate));
}
else
{
return(_database.InsertAsync(coordinate));
}
}
private async Task CoordinateDetection(Location location)
{
CoordinateItem foundCI = await App.Database.QueryCoordinatesAsync(location);
if (foundCI == null)
{
await DisplayAlert("Coordinate Detection Results", $"No coordinates were found near ({location.Latitude}, {location.Longitude}).", "OK");
}
else
{
await DisplayAlert("Coordinate Detection Results", $"The coordinate named \"{foundCI.Name}\" was found near ({location.Latitude}, {location.Longitude}).", "OK");
}
}
public static void AddHistoryItem(CoordinateItem coordItem, string action)
{
if (action.Equals(Constants.actionEnter))
{
_ = AddHistoryItem(coordItem, true);
}
else if (action.Equals(Constants.actionExit))
{
_ = AddHistoryItem(coordItem, false);
}
else
{
throw new ArgumentException($"The action must either be Constants.actionEnter: {Constants.actionEnter}, or Constants.actionExit: {Constants.actionExit}.", "action");
}
}
private async Task TriggerAlert(CoordinateItem item, bool action)
{
Debug.WriteLine($"Triggered Alter for {item.Name}, {action}");
int id = await LocationDetails.AddHistoryItem(item, action);
string notifTitle;
string notifText;
if (action)
{
notifTitle = $"{Constants.actionEnter} {Constants.coordinateName}: {item.Name}";
notifText = $"Reminder to {item.OnEnterReminder}";
}
else
{
notifTitle = $"{Constants.actionExit} {Constants.coordinateName}: {item.Name}";
notifText = $"Reminder to {item.OnExitReminder}";
}
locationDependencyService.UpdateNotification(notifTitle, notifText, id);
}
public static async Task <int> AddHistoryItem(CoordinateItem coordItem, bool action)
{
int id = await App.Database.SaveHistoryAsync(new HistoryItem
{
OriginID = coordItem.ID,
TrackedType = Constants.coordinateName,
Name = coordItem.Name,
Action = action ? Constants.actionEnter : Constants.actionExit,
Reminder = action ? coordItem.OnEnterReminder : coordItem.OnExitReminder
});
if (action)
{
Debug.WriteLine($"A history item for {Constants.actionEnter} - {Constants.coordinateName}: {coordItem.Name}, action: {coordItem.OnEnterReminder}, was created.");
}
else
{
Debug.WriteLine($"A history item for {Constants.actionExit} - {Constants.coordinateName}: {coordItem.Name}, action: {coordItem.OnExitReminder}, was created.");
}
return(id);
}
async void OnAddHistoryButtonClicked(object sender, EventArgs e)
{
Button aButton = sender as Button;
CoordinateItem coordinateItem = aButton.BindingContext as CoordinateItem;
string action;
if (coordinateItem.OnEnter)
{
if (coordinateItem.OnExit)
{
action = await DisplayActionSheet("Adding manual history activity, select the movement type.", "Cancel", null, Constants.actionEnter, Constants.actionExit);
}
else
{
action = await DisplayActionSheet("Adding manual history activity, select the movement type.", "Cancel", null, Constants.actionEnter);
}
}
else if (coordinateItem.OnExit)
{
action = await DisplayActionSheet("Adding manual history activity, select the movement type.", "Cancel", null, Constants.actionExit);
}
else
{
throw new System.ArgumentException("All coordinate Items must have an on enter and/or an on exit reminder.", "coordinateItem.OnEnter, coordinateItem.OnExit");
}
if (action == null || action.Equals("Cancel"))
{
return;
}
LocationDetails.AddHistoryItem(coordinateItem, action);
//await DisplayAlert("History Item added", $"A history item for {coordinateItem.Name} was created.", "OK");
}
/*public async void StartLocationHandler()
* {
*
* }*/
public async Task UpdateLocation(double latitude, double longitude)
{
Location newLocation = new Location(latitude, longitude);
Debug.WriteLine($"Updated location: ({latitude}, {longitude})");
if (App.Settings.CoordinateTrackingEnabled)
{
if (trackedCoordinateItem != null)
{
if (!LocationDetails.IsInLocation(newLocation, trackedCoordinateItem))
{
if (trackedCoordinateItem.OnExit)
{
_ = TriggerAlert(trackedCoordinateItem, false);
}
trackedCoordinateItem = null;
}
return;
}
CoordinateItem foundCoordinateItem = await App.Database.QueryCoordinatesAsync(newLocation);
if (foundCoordinateItem != null)
{
trackedCoordinateItem = foundCoordinateItem;
if (trackedCoordinateItem.OnEnter)
{
_ = TriggerAlert(trackedCoordinateItem, true);
}
return;
}
}
/*else
* {
* trackedCoordinateItem = null;
* }*/
if (App.Settings.PlaceTrackingEnabled)
{
if (trackedPlaceTypeItem != null)
{
if (!LocationDetails.IsInLocation(newLocation, startLocation, App.Settings.PlaceTypeLeaveRadius))
{
List <string> foundPlaceTypes = await LocationDetails.GetNearbyPlaceTypes(newLocation);
if (foundPlaceTypes.Exists(x => x.Equals(trackedPlaceTypeItem.Name)))
{
startLocation = newLocation;
}
else
{
if (trackedPlaceTypeItem.OnExit)
{
_ = TriggerAlert(trackedPlaceTypeItem, false);
}
trackedPlaceTypeItem = null;
}
}
return;
}
else
{
List <string> foundPlaceTypes = await LocationDetails.GetNearbyPlaceTypes(newLocation);
if (foundPlaceTypes.Any())
{
PlaceTypeItem foundPlaceTypeItem = await App.Database.QueryPlaceTypes(foundPlaceTypes);
if (foundPlaceTypeItem != null)
{
trackedPlaceTypeItem = foundPlaceTypeItem;
if (trackedPlaceTypeItem.OnEnter)
{
_ = TriggerAlert(trackedPlaceTypeItem, true);
}
startLocation = newLocation;
return;
}
}
}
}
/*else
* {
* trackedPlaceTypeItem = null;
* }*/
}
public Task <int> DeleteCoordinateAsync(CoordinateItem coordinate)
{
return(_database.DeleteAsync(coordinate));
}
async void OnAddButtonClicked(object sender, EventArgs e)
{
if (string.IsNullOrWhiteSpace(nameEntry.Text))
{
await DisplayAlert("Incomplete Name Entry", "A name entry is required.", "OK");
return;
}
if (string.IsNullOrWhiteSpace(latitudeEntry.Text) || string.IsNullOrWhiteSpace(longitudeEntry.Text))
{
await DisplayAlert("Incomplete Latitude or Longitude Entry", "Both a Latitude and Longitude entry is required.", "OK");
return;
}
if (!await LocationDetails.ValidateCoordinates(latitudeEntry.Text, longitudeEntry.Text))
{
return;
}
// radius
if (string.IsNullOrWhiteSpace(radiusEntry.Text))
{
await DisplayAlert("Incomplete Radius Entry", "A radius entry is required.", "OK");
return;
}
try
{
int.Parse(radiusEntry.Text);
}
catch
{
await DisplayAlert("Invalid Radius Entry", "The radius entry must be a whole number.", "OK");
return;
}
//seconds
/*if (string.IsNullOrWhiteSpace(secondsEntry.Text))
* {
* await DisplayAlert("Incomplete Seconds Entry", "A seconds entry is required.", "OK");
* return;
* }
*
* try
* {
* int.Parse(secondsEntry.Text);
* }
* catch
* {
* await DisplayAlert("Invalid Seconds Entry", "The seconds entry must be a whole number.", "OK");
* return;
* }*/
// reminders
if (onEnterPicker.SelectedIndex == -1 && onExitPicker.SelectedIndex == -1)
{
await DisplayAlert("Incomplete Reminders", "At least one reminder needs to be chosen.", "OK");
return;
}
string onEnterReminder = "";
if (onEnterPicker.SelectedIndex != -1)
{
onEnterReminder = onEnterPicker.SelectedItem.ToString();
}
string onExitReminder = "";
if (onExitPicker.SelectedIndex != -1)
{
onExitReminder = onExitPicker.SelectedItem.ToString();
}
try
{
if (editingItem != null)
{
editingItem.Name = nameEntry.Text;
editingItem.Latitude = double.Parse(latitudeEntry.Text);
editingItem.Longitude = double.Parse(longitudeEntry.Text);
editingItem.Radius = int.Parse(radiusEntry.Text);
//editingItem.Seconds = int.Parse(secondsEntry.Text);
editingItem.OnEnter = onEnterPicker.SelectedIndex != -1;
editingItem.OnExit = onExitPicker.SelectedIndex != -1;
editingItem.OnEnterReminder = onEnterReminder;
editingItem.OnExitReminder = onExitReminder;
}
else
{
editingItem = new CoordinateItem
{
Name = nameEntry.Text,
Latitude = double.Parse(latitudeEntry.Text),
Longitude = double.Parse(longitudeEntry.Text),
Radius = int.Parse(radiusEntry.Text),
//Seconds = int.Parse(secondsEntry.Text),
Seconds = 0,
OnEnter = onEnterPicker.SelectedIndex != -1,
OnExit = onExitPicker.SelectedIndex != -1,
OnEnterReminder = onEnterReminder,
OnExitReminder = onExitReminder,
IsOn = false
};
}
}
catch
{
await DisplayAlert("Invalid Entry", "An entry field contains invalid characters.", "OK");
return;
}
await App.Database.SaveCoordinateAsync(editingItem);
await Navigation.PopAsync();
}
