Import .ics File and show in Calendar or UITableView - ios

Question

I retrieve an .ics file from a certain url. I'd like to present the information of this file in a calendar and/or list view in my own app. I had a look at iCal4Objc("https://github.com/cybergarage/iCal4ObjC") and parsed the information like this:
-(NSMutableArray *)getPlanFromURL:(NSURL *)url {
NSMutableArray *planEntries = [[NSMutableArray alloc]init];
NSString *storePath = [self loadICSAndReturnPathFromURL:url];
CGICalendar *parserCalendar = [[CGICalendar alloc]initWithPath:storePath];
for(CGICalendarObject *planObject in [parserCalendar objects]) {
for(CGICalendarComponent *component in [planObject components]) {
for (CGICalendarProperty *icalProp in [component properties]) {
NSString *icalPropName = [icalProp name];
NSLog(#"%#",icalPropName);
if([icalPropName isEqualToString:SUMMARY]) {
[self.summaryArray addObject:[icalProp value]];
}
else if([icalPropName isEqualToString:LOCATION]) {
[self.locationArray addObject:[icalProp value]];
}
else if([icalPropName isEqualToString:CATEGORIES]) {
[self.categoryArray addObject:[icalProp value]];
}
else if([icalPropName isEqualToString:DTSTART]) {
[self.startArray addObject:[icalProp dateValue]];
}
else if([icalPropName isEqualToString:DTEND]) {
[self.endArray addObject:[icalProp dateValue]];
}
}
}
}
for(int i = 0;i<[self.summaryArray count];i++) {
DECalEntry *entry = [[DECalEntry alloc]init];
entry.summary = [self.summaryArray objectAtIndex:i];
entry.roomInformation = [self.locationArray objectAtIndex:i];
entry.category = [self.categoryArray objectAtIndex:i];
entry.startDate = [self.startArray objectAtIndex:i];
entry.endDate = [self.endArray objectAtIndex:i];
if ([entry.category isEqualToString:#"Prüfung"]) {
entry.isExam = true;
}
else entry.isExam = false;
[planEntries addObject:entry];
}
return planEntries;
}
-(NSString *)loadICSAndReturnPathFromURL:(NSURL *)url {
NSURLRequest * urlRequest = [NSURLRequest requestWithURL:url];
NSURLResponse * response = nil;
NSError * error = nil;
NSData * data = [NSURLConnection sendSynchronousRequest:urlRequest
returningResponse:&response
error:&error];
if (error == nil)
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *storePath = [NSString stringWithFormat:#"%#/%#", documentsDirectory, #"planData.ics"];
[data writeToFile:storePath atomically:YES];
return storePath;
}
NSLog(#"Error: %#",[error localizedDescription]);
return nil;
}
Since this is not very clean and it would be a pain to also implement UITableView and a calendar view to illustrate the parsed data i asked me whether there exists a framework that one of you knows which already can handle .ics files and shows them accordingly.
If you have an idea how to solve this issue less complicated and/or with less effort i would be really grateful.
Also have a look at my comment. At the moment the rrule property is not considered at all. But this is very important since it shows me if a event is repeated, until it is repeated and so on...

Answer 1

Nevermind i got it working myself by parsing the rrule property like i did it with the other properties and constructed a method which creates the right amount of objects i need by following the information that this property contains. Well i just think this was the only way because apparently the is no framework for importing and parsing .ics files. When i finish my project i might give it a shot for people who might face this one day.

Answer 2

To my knowledge there is no framework or control provided by Apple that displays .ics files, but once you construct an EKEvent, there is:
https://developer.apple.com/library/ios/documentation/EventKitUI/Reference/EKEventEditViewControllerClassRef/Reference/Reference.html#//apple_ref/doc/uid/TP40009571
Specifically, you want to take a look at EventKitUI.framework.