// returns: A 'condition cell', which displays information about the condition.
UITableViewCell GetConditionCell(UITableView tableView, NSIndexPath indexPath)
{
var cell = (ConditionCell)tableView.DequeueReusableCell(ConditionCell);
NSPredicate condition = EventTriggerCreator.Conditions [indexPath.Row];
var hkCondition = condition.HomeKitConditionType();
switch (hkCondition.Type)
{
case HomeKitConditionType.Characteristic:
cell.SetCharacteristic(hkCondition.CharacteristicData.Item1, (NSNumber)hkCondition.CharacteristicData.Item2);
break;
case HomeKitConditionType.ExactTime:
cell.SetOrder(hkCondition.ExactTimeData.Item1, hkCondition.ExactTimeData.Item2);
break;
case HomeKitConditionType.SunTime:
cell.SetOrder(hkCondition.SunTimeData.Item1, hkCondition.SunTimeData.Item2);
break;
case HomeKitConditionType.Unknown:
cell.SetUnknown();
break;
}
return(cell);
}
private void CreateSubscription()
{
var database = CKContainer.DefaultContainer().PrivateCloudDatabase;
var predicate = NSPredicate.PredicateWithValue(true);
var notificationInfo = new CKNotificationInfo();
var querySubscription = new CKQuerySubscription(
recordType,
predicate,
CKQuerySubscriptionOptions.FiresOnRecordCreation |
CKQuerySubscriptionOptions.FiresOnRecordDeletion |
CKQuerySubscriptionOptions.FiresOnRecordUpdate);
querySubscription.NotificationInfo = notificationInfo;
database.SaveSubscription(querySubscription, OnSubscriptionSaved);
//alternatively...you can use a CKModifySubscriptionsOperation
//var op = new CKModifySubscriptionsOperation(new[] { querySubscription }, null);
//op.Configuration.QualityOfService = NSQualityOfService.UserInitiated;
//op.ModifySubscriptionsCompletionBlock = OnSubscriptionModified;
//database.AddOperation(op);
}
private void ShowPicker(NSObject sender)
{
// This example is to be run on iOS 8.0.
if (!DeviceHelper.IsRunningOn8())
{
return;
}
ABPeoplePickerNavigationController picker = new ABPeoplePickerNavigationController();
picker.SelectPerson2 += HandleSelectPerson2;
picker.PerformAction2 += HandlePerformAction2;
picker.Cancelled += HandleCancelled;
// The people picker will only display the person's name, image and email properties in ABPersonViewController.
picker.DisplayedProperties.Add(ABPersonProperty.Email);
// The people picker will enable selection of persons that have at least one email address.
picker.PredicateForEnablingPerson = NSPredicate.FromFormat("emailAddresses.@count > 0");
// The people picker will select a person that has exactly one email address and call HandleSelectPerson2,
// otherwise the people picker will present an ABPersonViewController for the user to pick one of the email addresses.
picker.PredicateForSelectionOfPerson = NSPredicate.FromFormat("emailAddresses.@count = 1");
PresentViewController(picker, true, null);
}
public void FetchRecords(string recordType, Action <List <CKRecord> > completionHandler)
{
var truePredicate = NSPredicate.FromValue(true);
var query = new CKQuery(recordType, truePredicate)
{
SortDescriptors = new [] { new NSSortDescriptor("creationDate", false) }
};
var queryOperation = new CKQueryOperation(query)
{
DesiredKeys = new [] { NameField }
};
var results = new List <CKRecord> ();
queryOperation.RecordFetched = (record) => results.Add(record);
queryOperation.Completed = (cursor, error) => {
if (error != null)
{
Console.WriteLine("An error occured: {0}", error.Description);
return;
}
InvokeOnMainThread(() => completionHandler(results));
};
publicDatabase.AddOperation(queryOperation);
}
public void Subscribe()
{
if (Subscribed)
{
return;
}
var truePredicate = NSPredicate.FromValue(true);
var itemSubscription = new CKSubscription(ItemRecordType, truePredicate, CKSubscriptionOptions.FiresOnRecordCreation);
var notification = new CKNotificationInfo {
AlertBody = "New Item Added",
ShouldSendContentAvailable = true
};
itemSubscription.NotificationInfo = notification;
publicDatabase.SaveSubscription(itemSubscription, (sub, error) => {
if (error != null)
{
Console.WriteLine("An error occured: {0}", error.LocalizedDescription);
return;
}
Console.WriteLine("Subscribed to Item");
var defaults = NSUserDefaults.StandardUserDefaults;
defaults.SetBool(true, "subscribed");
defaults.SetString(sub.SubscriptionId, "subscriptionID");
});
}
static void DeleteUnregisteredEvent(List <Calendar> events)
{
NSDate startDate = DateTimeToNSDate(DateTime.Now).AddSeconds(-(3600 * 2));
NSDate endDate = DateTimeToNSDate(DateTime.Now.AddMonths(1)).AddSeconds(-(3600 * 2));
NSPredicate query = EventStore.PredicateForEvents(startDate, endDate, new [] { Calendar });
EKEvent[] queryresult = EventStore.EventsMatching(query);
if (queryresult == null)
{
return;
}
EKEvent[] todelete = Array.FindAll(queryresult, x => {
foreach (var item in events)
{
if (item.EventKitID == x.EventIdentifier || x.StartDate.SecondsSinceReferenceDate < NSDate.Now.SecondsSinceReferenceDate)
{
return(false);
}
}
return(true);
});
NSError err;
bool succes;
foreach (var item in todelete)
{
succes = EventStore.RemoveEvent(item, EKSpan.ThisEvent, true, out err);
if (!succes)
{
throw new Exception("Delete failed");
}
}
}
public void SetUp()
{
TestRuntime.AssertXcodeVersion(6, 0);
TestRuntime.AssertSystemVersion(ApplePlatform.MacOSX, 10, 10, throwIfOtherPlatform: false);
q = new CKQuery("Foo", NSPredicate.FromFormat("email = '@xamarin'"));
op = new CKQueryOperation(q);
}
private void RunQuery()
{
// The objective-c version takes a format string and a variadic argument
// list for substititon, but we only support sending an unformatted string
// down. Marshalling variadic arguments is tricky....
// Just do your formatting on the C# side.
// Note that passing a bad predicate string will throw an exception
// Pick a random name out of the hat
var queryStr = string.Format("name = '{0}'", names[UnityEngine.Random.Range(0, names.Length)]);
Debug.Log(string.Format("Running query with predicate ({0})", queryStr));
// Queries are made with NSPredicate which sorta like SQL and sorta
// like regular expressions.
// See https://nshipster.com/nspredicate/ for a quick intro to the kinds
// of queries you can run. Were just going to do a simple key,value search
CKQuery query = new CKQuery("Person", NSPredicate.PredicateWithFormat(queryStr));
// The second argument here is the container to search in. Unless you
// are using custom containers, you'll want to pass null for the
// default container
database.PerformQuery(query, null, OnQueryComplete);
}
public static EKEvent[] FetchEvents(DateTime startDate, DateTime endDate)
{
// Create the predicate. Pass it the default calendar.
//Util.WriteLine ("Getting Calendars");
EKEventStore store = new EKEventStore();
// store.RequestAccess (EKEntityType.Event, (bool granted, NSError e) => {
// if (granted)
// {
//#if DEBUG
// Console.WriteLine("Access Granted!");
//#endif
// //Do add events calendars and any calendar stuff here
// }
// else
// new UIAlertView ( "Access Denied", "User Denied Access to Calendar Data", null, "ok", null).Show ();
// }
// );
var calendarArray = store.Calendars;
//Util.WriteLine ("Predicate");
//Convert to NSDate
NSDate nstartDate = startDate.DateTimeToNSDate();
NSDate nendDate = endDate.DateTimeToNSDate();
NSPredicate predicate = store.PredicateForEvents(nstartDate, nendDate, calendarArray);
//Util.WriteLine ("Fetching Events");
// Fetch all events that match the predicate.
var eventsArray = store.EventsMatching(predicate);
//Util.WriteLine ("Returning results");
if (eventsArray == null)
{
eventsArray = new List <EKEvent> ().ToArray();
}
return(eventsArray);
}
private Task InstigateDocumentLookupAsync(TaskScheduler synchronizationContextTaskScheduler) =>
Task.Factory.StartNew(
() =>
{
var query = new NSMetadataQuery
{
SearchScopes = new NSObject[]
{
NSMetadataQuery.UbiquitousDocumentsScope
},
Predicate = NSPredicate.FromFormat(
"%K == %@",
new NSObject[]
{
NSMetadataQuery.ItemFSNameKey,
new NSString(documentFilename)
})
};
NSNotificationCenter.DefaultCenter.AddObserver(NSMetadataQuery.DidFinishGatheringNotification, this.OnQueryFinished, query);
query.StartQuery();
},
CancellationToken.None,
TaskCreationOptions.None,
synchronizationContextTaskScheduler);
public void QueryForRecords(string referenceRecordName, Action <List <CKRecord> > completionHandler)
{
var recordId = new CKRecordID(referenceRecordName);
var parent = new CKReference(recordId, CKReferenceAction.None);
var predicate = NSPredicate.FromFormat("parent == %@", parent);
var query = new CKQuery(ReferenceSubItemsRecordType, predicate)
{
SortDescriptors = new [] { new NSSortDescriptor("creationDate", false) }
};
var queryOperation = new CKQueryOperation(query)
{
DesiredKeys = new [] { NameField }
};
var results = new List <CKRecord> ();
queryOperation.RecordFetched = (record) => results.Add(record);
queryOperation.Completed = (cursor, error) => {
if (error != null)
{
Console.WriteLine("An error occured: {0}", error.Description);
return;
}
DispatchQueue.MainQueue.DispatchAsync(() => completionHandler(results));
};
publicDatabase.AddOperation(queryOperation);
}
public void QueryForRecords(CLLocation location, Action <List <CKRecord> > completionHandler)
{
var radiusInKilometers = NSNumber.FromFloat(5f);
var predicate = NSPredicate.FromFormat("distanceToLocation:fromLocation:(location, %@) < %f",
new NSObject[] { location, radiusInKilometers });
var query = new CKQuery(ItemRecordType, predicate)
{
SortDescriptors = new [] { new NSSortDescriptor("creationDate", false) }
};
var queryOperation = new CKQueryOperation(query)
{
DesiredKeys = new [] { NameField }
};
var results = new List <CKRecord> ();
queryOperation.RecordFetched = (record) => results.Add(record);
queryOperation.Completed = (cursor, error) => {
if (error != null)
{
Console.WriteLine("An error occured: {0}", error.Description);
return;
}
DispatchQueue.MainQueue.DispatchAsync(() => completionHandler(results));
};
publicDatabase.AddOperation(queryOperation);
}
/// <summary>
/// Starts a query to look for the sample Test File.
/// </summary>
private void FindDocument()
{
Console.WriteLine("Finding Document...");
// Create a new query and set it's scope
Query = new NSMetadataQuery();
Query.SearchScopes = new NSObject [] {
NSMetadataQuery.UbiquitousDocumentsScope,
NSMetadataQuery.UbiquitousDataScope,
NSMetadataQuery.AccessibleUbiquitousExternalDocumentsScope
};
// Build a predicate to locate the file by name and attach it to the query
var pred = NSPredicate.FromFormat("%K == %@"
, new NSObject[] {
NSMetadataQuery.ItemFSNameKey
, new NSString(TestFilename)
});
Query.Predicate = pred;
// Register a notification for when the query returns
NSNotificationCenter.DefaultCenter.AddObserver(this
, new Selector("queryDidFinishGathering:")
, NSMetadataQuery.DidFinishGatheringNotification
, Query);
// Start looking for the file
Query.StartQuery();
Console.WriteLine("Querying: {0}", Query.IsGathering);
}
/// <summary>
/// Event for adding a contact from the contact book
/// </summary>
private void AddRecipientFromContactButton_TouchUpInside(object sender, EventArgs e)
{
_isComeFromContact = true;
if (contactPickerView == null)
{
contactPickerView = new CNContactPickerViewController();
contactPickerView.DisplayedPropertyKeys = new NSString[] { CNContactKey.EmailAddresses };
contactPickerView.PredicateForEnablingContact = NSPredicate.FromFormat("emailAddresses.@count > 0");
contactPickerView.PredicateForSelectionOfContact = NSPredicate.FromFormat("emailAddresses.@count == 1");
var contactPickerDelegate = new ContactPickerDelegate();
contactPickerView.Delegate = contactPickerDelegate;
contactPickerDelegate.SelectionCanceled += () => { };
contactPickerDelegate.ContactPropertySelected += (property) => { };
contactPickerDelegate.ContactsSelected += (CNContactPickerViewController picker, CNContact[] contacts) =>
{
foreach (var contact in contacts)
{
if (App.Locator.Alert.LsRecipients.Any((arg) => arg.Email.ToLower() == contact.EmailAddresses[0].Value.ToString().Trim().ToLower()))
{
continue;
}
var recipient = new AlertRecipientDTO();
recipient.DisplayName = string.Format("{0} {1}", contact.GivenName, contact.FamilyName);
recipient.Email = contact.EmailAddresses[0].Value.ToString().Trim();
AddRecipientToRecipientContainer(recipient);
}
};
}
PresentViewController(contactPickerView, true, null);
}
void ShowPicker(NSObject sender)
{
ABPeoplePickerNavigationController picker = new ABPeoplePickerNavigationController();
picker.SelectPerson += HandleSelectPerson;
picker.SelectPerson2 += HandleSelectPerson2;
picker.PerformAction += HandlePerformAction;
picker.PerformAction2 += HandlePerformAction2;
picker.Cancelled += HandleCancelled;
// The people picker will only display the person's name, image and email properties in ABPersonViewController.
picker.DisplayedProperties.Add(ABPersonProperty.Email);
// The people picker will enable selection of persons that have at least one email address.
if (picker.RespondsToSelector(new Selector("setPredicateForEnablingPerson:")))
{
picker.PredicateForEnablingPerson = NSPredicate.FromFormat("emailAddresses.@count > 0");
}
// The people picker will select a person that has exactly one email address and call peoplePickerNavigationController:didSelectPerson:,
// otherwise the people picker will present an ABPersonViewController for the user to pick one of the email addresses.
if (picker.RespondsToSelector(new Selector("setPredicateForSelectionOfPerson:")))
{
picker.PredicateForSelectionOfPerson = NSPredicate.FromFormat("emailAddresses.@count = 1");
}
PresentViewController(picker, true, null);
}
public static PredicateData GetPredicateData(this NSPredicate predicate)
{
var predicateString = predicate.PredicateFormat;
var predicateData = new PredicateData(predicateString);
foreach (var operatorString in operatorStrings)
{
var paddedOperatorString = string.Format($" {operatorString} ");
var index = predicateString.LastIndexOf(paddedOperatorString, StringComparison.Ordinal);
if (index > 0)
{
predicateData.KeyString = predicateString.Substring(0, index);
predicateData.ValueString = predicateString
.Substring(index + paddedOperatorString.Length)?
.Replace("\"", string.Empty);
predicateData.OperatorString = operatorString.Replace("==", "=");
return(predicateData);
}
}
return(predicateData);
}
public static Photographer WithName(string name, NSManagedObjectContext context)
{
Photographer photographer = null;
// This is just like Photo(Flickr)'s method. Look there for commentary.
if (name.Length > 0)
{
var request = new NSFetchRequest("Photographer")
{
SortDescriptors = new[] {new NSSortDescriptor("name", true, new Selector("localizedCaseInsensitiveCompare:"))},
Predicate = NSPredicate.FromFormat("name = %@", new NSObject[] {(NSString) name})
};
NSError error;
var matches = context.ExecuteFetchRequest(request, out error);
if (matches == null || matches.Length > 1)
{
// handle error
}
else if (matches.Length == 0)
{
photographer = InsertNewObject(context);
photographer.Name = name;
}
else
{
photographer = (Photographer) matches.First();
}
}
return photographer;
}
static void SelectUnregisteredEvents(List <Calendar> events)
{
foreach (var item in events)
{
NSDate startDate = DateTimeToNSDate(item.Start).AddSeconds(-(3600 * 2));
NSDate endDate = DateTimeToNSDate(item.End).AddSeconds(-(3600 * 2));
NSPredicate query = EventStore.PredicateForEvents(startDate, endDate, new [] { Calendar });
EKEvent[] queryresult = EventStore.EventsMatching(query);
bool exist = false;
if (queryresult == null)
{
item.RegisterEventForStoring = true;
continue;
}
foreach (var evt in queryresult)
{
if (evt.Location == (item.Room.Code ?? String.Empty) && evt.Title == item.ActiTitle)
{
exist = true;
item.EventKitID = evt.EventIdentifier;
}
}
item.RegisterEventForStoring |= !exist;
}
}
/// <summary>
/// Fetches all unified contacts matching the specified predicate.
/// </summary>
/// <returns>The contacts matching predicate.</returns>
/// <param name="predicate">Predicate.</param>
/// <param name="keys">Keys.</param>
/// <param name="error">Error.</param>
public NSArray <CNContact> UnifiedContactsMatchingPredicate(NSPredicate predicate, NSArray <NSString> keys, out NSError error)
{
Util.NullArgumentTest(predicate);
Util.NullArgumentTest(keys);
IntPtr errorPtr = new IntPtr();
var contactsPtr = C.CNContactStore_unifiedContactsMatchingPredicate(
SelfPtr(),
predicate.ToPointer(),
keys.ToPointer(),
ref errorPtr);
error = null;
if (PInvokeUtil.IsNotNull(errorPtr))
{
error = new NSError(errorPtr);
CFFunctions.CFRelease(errorPtr);
}
NSArray <CNContact> contacts = null;
if (PInvokeUtil.IsNotNull(contactsPtr))
{
contacts = new NSArray <CNContact>(contactsPtr);
CFFunctions.CFRelease(contactsPtr);
}
return(contacts);
}
/// <summary>
///
/// </summary>
/// <param name="email_address"></param>
/// <returns></returns>
public static bool ValidateEmail(string email_address)
{
var _regex = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
var _tester = NSPredicate.FromFormat(String.Format("SELF MATCHES {0}", _regex));
return(_tester.EvaluateWithObject(NSObject.FromObject(email_address)));
}
public void Cant_create_CKQuery_with_no_predicate()
{
NSPredicate predicate = null;
TestDelegate sut = () => new CKQuery("record_type", predicate);
Assert.Throws <CloudKitException>(sut);
}
/// <summary>
///
/// </summary>
/// <param name="password"></param>
/// <returns></returns>
public static bool ValidatePassword(string password)
{
var _regex = "^(?=.*[A-Za-z])(?=.*\\d)[A-Za-z\\d]{6,}$";
var _tester = NSPredicate.FromFormat(String.Format("SELF MATCHES {0}", NSObject.FromObject(_regex)));
return(_tester.EvaluateWithObject(NSObject.FromObject(password)));
}
private void HandleContactsWithProfilePicture()
{
var picker = this.CreatePicker();
// Only show contacts with email addresses.
picker.PredicateForEnablingContact = NSPredicate.FromFormat("imageDataAvailable == true");
base.NavigationController.PresentViewController(picker, true, null);
}
private void HandleContactsWithEmailAddresses()
{
var picker = this.CreatePicker();
// Only show contacts with email addresses.
picker.PredicateForEnablingContact = NSPredicate.FromFormat("emailAddresses.@count > 0");
base.NavigationController.PresentViewController(picker, true, null);
}
/// <summary>
/// Removes all reminders.
/// </summary>
public static void RemoveAllReminders()
{
object[] calenderArray = new object[1];
calenderArray[0] = eventStore.defaultCalendarForNewReminders;
NSPredicate predicate = eventStore.Predicate(calenderArray);
eventStore.FetchRemindersMatchingPredicate(predicate, _removeReminders);
}
string GetUrlScheme(SocialNetworks socialNetwork)
{
var predicate = NSPredicate.FromFormat("%K = %@", new NSObject[] { new NSString("CFBundleURLName"), new NSString(socialNetwork.ToString()) });
var urlTypes = (NSMutableArray)NSBundle.MainBundle.InfoDictionary.ObjectForKey(new NSString("CFBundleURLTypes"));
var urlSchemes = (NSArray)urlTypes.Filter(predicate).ValueForKey(new NSString("CFBundleURLSchemes"));
var neededScheme = urlSchemes.GetItem <NSMutableArray>(0).GetItem <NSMutableString>(0).ToString();
return(neededScheme);
}
public void Can_create_CKQuery()
{
var recordType = "record_type";
var predicate = NSPredicate.PredicateWithValue(false);
var query = new CKQuery(recordType, predicate);
Assert.AreEqual(query.RecordType, recordType);
Assert.AreEqual(query.Predicate, predicate);
}
// Removes a predicate from the pending conditions.
public void RemoveCondition(NSPredicate predicate)
{
var index = Conditions.IndexOf(predicate);
if (index >= 0)
{
Conditions.RemoveAt(index);
}
}
private void SelectContactButton_TouchUpInside(object sender, EventArgs e)
{
// Create a new picker
var picker = new CNContactPickerViewController();
// A contact has many properties (email, phone numbers, birthday)
// and you must specify which properties you want to fetch,
// in this case PhoneNumbers
picker.DisplayedPropertyKeys = new NSString[] { CNContactKey.PhoneNumbers };
picker.PredicateForEnablingContact = NSPredicate.FromValue(true);
picker.PredicateForSelectionOfContact = NSPredicate.FromValue(true);
// Respond to selection
var pickerDelegate = new ContactPickerDelegate();
picker.Delegate = pickerDelegate;
// If the user cancels the contact selection,
// show an empty string
pickerDelegate.SelectionCanceled += () => {
this.SelectedContactField.Text = "";
};
// If the user selects a contact,
// show the full name
pickerDelegate.ContactSelected += (contact) => {
this.SelectedContactField.Text = $"{contact.GivenName} {contact.FamilyName}";
// If the contact has phone numbers
if (contact.PhoneNumbers != null)
{
// Query for mobile only
// Each PhoneNumber has a label with a description
// and a Value with the actual phone number
// exposed by the StringValue property
var mobilePhone = contact.PhoneNumbers.
Where(p => p.Label.Contains("Mobile")).
Select(p => p.Value.StringValue);
// If at least one mobile phone number
if (mobilePhone != null)
{
// Generate a new data source
var tblSource = new TableSource(mobilePhone.ToArray(), this);
// and perform data-binding
this.TableView.Source = tblSource;
}
}
};
pickerDelegate.ContactPropertySelected += (property) => {
this.SelectedContactField.Text = property.Value.ToString();
};
// Display picker
PresentViewController(picker, true, null);
}
private void HandleContactsWithPhoneNumbers()
{
var picker = new CNContactPickerViewController {
Delegate = this
};
// Only show contacts with email addresses.
picker.PredicateForSelectionOfProperty = NSPredicate.FromFormat("key == 'phoneNumbers'");
base.NavigationController.PresentViewController(picker, true, null);
}
// -------------------------------------------------------------------------------
// spotlightFriendlyPredicate:predicate
//
// This method will "clean up" an NSPredicate to make it ready for Spotlight, or return nil if the predicate can't be cleaned.
//
// Foundation's Spotlight support in NSMetdataQuery places the following requirements on an NSPredicate:
// - Value-type (always YES or NO) predicates are not allowed
// - Any compound predicate (other than NOT) must have at least two subpredicates
// -------------------------------------------------------------------------------
private NSPredicate spotlightFriendlyPredicate (NSPredicate predicate)
{
if (predicate.Equals (NSPredicate.FromValue (true)) || predicate.Equals (NSPredicate.FromValue (false)))
return null;
if (predicate is NSCompoundPredicate) {
NSCompoundPredicate compoundPredicate = predicate as NSCompoundPredicate;
NSCompoundPredicateType type = compoundPredicate.Type;
List<NSPredicate> cleanSubPredicates = new List<NSPredicate> ();
foreach (var dirtySubpredicate in compoundPredicate.Subpredicates) {
NSPredicate cleanSubPredicate = this.spotlightFriendlyPredicate (dirtySubpredicate);
if (cleanSubPredicate != null)
cleanSubPredicates.Add (cleanSubPredicate);
}
if (cleanSubPredicates.Count == 0)
return null;
if (cleanSubPredicates.Count == 1 && type != NSCompoundPredicateType.Not)
return cleanSubPredicates.First ();
else
return new NSCompoundPredicate (type,cleanSubPredicates.ToArray ());
} else
return predicate;
}
// Removes a predicate from the pending conditions.
public void RemoveCondition (NSPredicate predicate)
{
var index = Conditions.IndexOf (predicate);
if (index >= 0)
Conditions.RemoveAt (index);
}
// Adds a predicate to the pending conditions.
public void AddCondition (NSPredicate predicate)
{
Conditions.Add (predicate);
}
private void createNewSearchForPredicate (NSPredicate predicate, string title)
{
if (predicate == null)
return;
// remove the old search results.
mySearchResults.Remove (mySearchResults.ArrangedObjects ());
// always search for items in the Address Book
//NSPredicate addrBookPredicate = NSPredicate.FromFormat (" (kMDItemKind == 'Address Book Person Data')",new NSObject[0]);
NSPredicate addrBookPredicate = NSPredicate.FromFormat (" (kMDItemContentType == 'com.apple.addressbook.person')",new NSObject[0]);
predicate = NSCompoundPredicate.CreateAndPredicate (new NSPredicate[2] {addrBookPredicate, predicate});
// set the query predicate....
query.Predicate = predicate;
// and send it off for processing...
query.StartQuery ();
}
NSPredicate CreateLoadNewPostPredicate()
{
var len = tagArray.Length + 1;
var subPredicates = new NSPredicate[len];
subPredicates [0] = Utils.CreateAfterPredicate(lastPostSeenOnServer.PostRecord.CreationDate);
for (int i = 0; i < tagArray.Length; i++)
subPredicates [i + 1] = Utils.CreateTagPredicate(tagArray [i]);
// ANDs all subpredicates to make a final predicate
NSPredicate finalPredicate = NSCompoundPredicate.CreateAndPredicate (subPredicates);
return finalPredicate;
}
CKQuery CreatePostQuery()
{
// Create predicate out of tags. If self.tagArray is empty we should get every post
NSPredicate[] subPredicates = new NSPredicate[tagArray.Length];
for (int i = 0; i < tagArray.Length; i++)
subPredicates [i] = Utils.CreateTagPredicate(tagArray [i]);
// If our tagArray is empty, create a true predicate (as opposed to a predicate containing "Tags CONTAINS ''"
NSPredicate finalPredicate = tagArray.Length == 0
? NSPredicate.FromValue (true)
: NSCompoundPredicate.CreateAndPredicate (subPredicates);
CKQuery postQuery = new CKQuery (Post.RecordType, finalPredicate);
// lastest post on the top
postQuery.SortDescriptors = Utils.CreateCreationDateDescriptor (ascending: false);
return postQuery;
}