public void ConfigureWithEarthquake(ManagedEarthquake earthquake)
{
locationLabel.Text = earthquake.Location;
dateLabel.Text = DateFormatter.StringFor (earthquake.Date);
magnitudeLabel.Text = string.Format("{0:#.#}", earthquake.Magnitude);
magnitudeImage.Image = ImageForMagnitude (earthquake.Magnitude.FloatValue);
}
public void ConfigureWithEarthquake(ManagedEarthquake earthquake)
{
locationLabel.Text = earthquake.Location;
dateLabel.Text = DateFormatter.StringFor(earthquake.Date);
magnitudeLabel.Text = string.Format("{0:#.#}", earthquake.Magnitude);
magnitudeImage.Image = ImageForMagnitude(earthquake.Magnitude.FloatValue);
}
public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
{
var cell = (APLEarthquakeTableViewCell)tableView.DequeueReusableCell(APLEarthquakeTableViewCell.Key);
cell.SelectionStyle = UITableViewCellSelectionStyle.None;
var earthquake = new ManagedEarthquake(FetchedResultsController.ObjectAt(indexPath).Handle);
cell.ConfigureWithEarthquake(earthquake);
return(cell);
}
void AddEarthquakesToList (List<Earthquake> earthquakes)
{
var entity = NSEntityDescription.EntityForName ("Earthquake", managedObjectContext);
var fetchRequest = new NSFetchRequest ();
fetchRequest.Entity = entity;
var date = (NSPropertyDescription)entity.PropertiesByName.ValueForKey (new NSString ("date"));
var location = (NSPropertyDescription)entity.PropertiesByName.ValueForKey (new NSString ("location"));
fetchRequest.PropertiesToFetch = new NSPropertyDescription[] { date, location };
fetchRequest.ResultType = NSFetchRequestResultType.DictionaryResultType;
NSError error;
foreach (var earthquake in earthquakes) {
var arguments = new NSObject[] { earthquake.Location, earthquake.Date };
fetchRequest.Predicate = NSPredicate.FromFormat ("location = %@ AND date = %@", arguments);
var fetchedItems = NSArray.FromNSObjects (managedObjectContext.ExecuteFetchRequest (fetchRequest, out error));
if (fetchedItems.Count == 0) {
if (string.IsNullOrEmpty (entity.Description))
continue;
var managedEarthquake = new ManagedEarthquake (entity, managedObjectContext) {
Magnitude = earthquake.Magnitude,
Location = earthquake.Location,
Date = earthquake.Date,
USGSWebLink = earthquake.USGSWebLink,
Latitude = earthquake.Latitude,
Longitude = earthquake.Longitude
};
managedObjectContext.InsertObject (managedEarthquake);
}
var gregorian = new NSCalendar (NSCalendarType.Gregorian);
var offsetComponents = new NSDateComponents ();
offsetComponents.Day = -14;// 14 days back from today
NSDate twoWeeksAgo = gregorian.DateByAddingComponents (offsetComponents, NSDate.Now, NSCalendarOptions.None);
// use the same fetchrequest instance but switch back to NSManagedObjectResultType
fetchRequest.ResultType = NSFetchRequestResultType.ManagedObject;
fetchRequest.Predicate = NSPredicate.FromFormat ("date < %@", new NSObject[] { twoWeeksAgo });
var olderEarthquakes = NSArray.FromObjects (managedObjectContext.ExecuteFetchRequest (fetchRequest, out error));
for (nuint i = 0; i < olderEarthquakes.Count; i++)
managedObjectContext.DeleteObject (olderEarthquakes.GetItem<ManagedEarthquake> (i));
if (managedObjectContext.HasChanges) {
if (!managedObjectContext.Save (out error))
Console.WriteLine (string.Format ("Unresolved error {0}", error.LocalizedDescription));
}
}
}
public override UITableViewCell GetCell (UITableView tableView, NSIndexPath indexPath)
{
var cell = (APLEarthquakeTableViewCell)tableView.DequeueReusableCell (APLEarthquakeTableViewCell.Key);
cell.SelectionStyle = UITableViewCellSelectionStyle.None;
var earthquake = new ManagedEarthquake (FetchedResultsController.ObjectAt (indexPath).Handle);
cell.ConfigureWithEarthquake (earthquake);
return cell;
}
private void AddEarthquakesToList(List <Earthquake> earthquakes)
{
var entity = NSEntityDescription.EntityForName("Earthquake", managedObjectContext);
var fetchRequest = new NSFetchRequest();
fetchRequest.Entity = entity;
var date = (NSPropertyDescription)entity.PropertiesByName.ValueForKey(new NSString("date"));
var location = (NSPropertyDescription)entity.PropertiesByName.ValueForKey(new NSString("location"));
fetchRequest.PropertiesToFetch = new NSPropertyDescription[] { date, location };
fetchRequest.ResultType = NSFetchRequestResultType.DictionaryResultType;
NSError error;
foreach (var earthquake in earthquakes)
{
var arguments = new NSObject[] { earthquake.Location, earthquake.Date };
fetchRequest.Predicate = NSPredicate.FromFormat(@"location = %@ AND date = %@", arguments);
var fetchedItems = NSArray.FromNSObjects(managedObjectContext.ExecuteFetchRequest(fetchRequest, out error));
if (fetchedItems.Count == 0)
{
if (string.IsNullOrEmpty(entity.Description))
{
continue;
}
var managedEarthquake = new ManagedEarthquake(entity, managedObjectContext)
{
Magnitude = earthquake.Magnitude,
Location = earthquake.Location,
Date = earthquake.Date,
USGSWebLink = earthquake.USGSWebLink,
Latitude = earthquake.Latitude,
Longitude = earthquake.Longitude
};
managedObjectContext.InsertObject(managedEarthquake);
}
var gregorian = new NSCalendar(NSCalendarType.Gregorian);
var offsetComponents = new NSDateComponents();
offsetComponents.Day = -14; // 14 days back from today
NSDate twoWeeksAgo = gregorian.DateByAddingComponents(offsetComponents, NSDate.Now, NSCalendarOptions.None);
// use the same fetchrequest instance but switch back to NSManagedObjectResultType
fetchRequest.ResultType = NSFetchRequestResultType.ManagedObject;
fetchRequest.Predicate = NSPredicate.FromFormat(@"date < %@", new NSObject[] { twoWeeksAgo });
var olderEarthquakes = NSArray.FromObjects(managedObjectContext.ExecuteFetchRequest(fetchRequest, out error));
for (int i = 0; i < olderEarthquakes.Count; i++)
{
managedObjectContext.DeleteObject(olderEarthquakes.GetItem <ManagedEarthquake> (i));
}
if (managedObjectContext.HasChanges)
{
if (!managedObjectContext.Save(out error))
{
Console.WriteLine(string.Format("Unresolved error {0}", error.LocalizedDescription));
}
}
}
}
