Loading bulk event in ios calendar get error - ios

Question

I am trying to do a massive load of events on a ios calendar either local or in gmail (the calendar chooses the user as I describe in the following answer) using objective-c.
Adding an event with the functions I've put below works fine for me, but when I have to do a massive load of eg 527 events (since I'm trying to add a student's school calendar) it does not work correctly.
When doing the bulk load I inserted well about 100 events or so and then it starts to crash and crash the app.
The errors that it gives me are the following:
2016-11-17 17:23:35.966 [230:11481] Calendar was not set: 1 Error
Domain=EKErrorDomain Code=1 "No calendar selected."
UserInfo={NSLocalizedDescription=No calendar selected.}
2016-11-17 17:23:49.545 [230:12644] Connectioninterrupted!
2016-11-17 17:23:49.568[230:12587] Error getting changed object IDs
since timestamp 501092601.149441 from daemon: Error
Domain=NSMachErrorDomain Code=4097 "unknown error code"
My question is this: Is there any error in my massive loading approach or in the functions I have done? or else Is there any other better way to do a massive load of events?
Function that inserts the list of events:
- (int) addCalendarEvents: (EKCalendar *) cal {
int num = 0;
for (int i=0; i < [calendario.eventos count]; i++) {
NSDictionary * nextDict = [calendario.eventos objectAtIndex:i];
Evento_DTO * evento_dto = [[Evento_DTO alloc] initWithEventos:nextDict];
BOOL res = [self addEventCalendar: evento_dto calendar: cal];
if(res){
num++;
}
}
return num;
}
And the function that adds the event to the calendar is as follows:
-(BOOL)addEventCalendar: (Evento_DTO *) evento calendar: (EKCalendar *) cal{
__block BOOL res = NO;
if (!SYSTEM_VERSION_LESS_THAN(#"6.0")) {
// iOS 6 and later
EKEventStore *eventStore = [[EKEventStore alloc] init];
//We get the dates of the event
Fecha_DTO *fechaStart = [[Fecha_DTO alloc] initWithFecha:(NSDictionary *)evento.dtStart];
Fecha_DTO *fechaEnd = [[Fecha_DTO alloc] initWithFecha:(NSDictionary *)evento.dtEnd];
// Format the dates to type NSDate
// Start Date
NSDateFormatter* df = [[NSDateFormatter alloc] init];
[df setDateFormat:#"yyyyMMdd'T'HHmmss"];
if (fechaStart.tzid == nil) {
[df setTimeZone: [NSTimeZone systemTimeZone]];
}else{
[df setTimeZone:[NSTimeZone timeZoneWithName:fechaStart.tzid]];
}
NSDate* parsedDateS = [df dateFromString: fechaStart.fecha];
// End Date
NSDateFormatter* df2 = [[NSDateFormatter alloc] init];
[df2 setDateFormat:#"yyyyMMdd'T'HHmmss"];
if (fechaEnd.tzid == nil) {
[df2 setTimeZone: [NSTimeZone systemTimeZone]];
}else{
[df2 setTimeZone:[NSTimeZone timeZoneWithName:fechaEnd.tzid]];
}
NSDate* parsedDateE = [df2 dateFromString: fechaEnd.fecha];
//rRules
NSString *rfc2445String = evento.rRule; // Usando la libreria EKRecurrenceRule+RRULE.m
EKRecurrenceRule *recurrenceRule;
if (![rfc2445String isEqualToString:#""]) {
recurrenceRule = [[EKRecurrenceRule alloc] initWithString:rfc2445String andTimezone:fechaStart.tzid];
// NSLog(#"RRule: %#", recurrenceRule);
}
if(parsedDateS!=nil){
[eventStore requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {
if (granted) {
EKEvent *event = [EKEvent eventWithEventStore:eventStore];
event.title = evento.summary;
event.notes = evento.description;
event.startDate = parsedDateS;
event.endDate = parsedDateE;
event.location = evento.location;
if (![rfc2445String isEqualToString:#""])
event.recurrenceRules = [NSArray arrayWithObject:recurrenceRule];
event.calendar = [eventStore calendarWithIdentifier: cal.calendarIdentifier];
//[event setCalendar:[eventStore defaultCalendarForNewEvents]];
NSError *err = nil;
BOOL success = [eventStore saveEvent:event span:EKSpanThisEvent commit:YES error:&err];
if(!success){
if (err) {
NSLog(#"Calendar was not set: %li %#", (long)err.code, err.description);
}
}else{
//NSLog(#"Added Event");
res = YES;
}
} else {
// code here for when the user does NOT allow your app to access the calendar
alerta = [[UIAlertView alloc]initWithTitle:AMLocalizedString(#"Error", #"")
message:AMLocalizedString(#"errorPermisosCal", #"")
delegate:self
cancelButtonTitle:#"OK"
otherButtonTitles:nil, nil];
[alerta show];
}
}];
}else{
NSLog(#"The start date is null");
}
df = nil;
df2 = nil;
}else{
alerta = [[UIAlertView alloc]initWithTitle:AMLocalizedString(#"Error", #"")
message:AMLocalizedString(#"VersionEvento", #"")
delegate:self
cancelButtonTitle:#"OK"
otherButtonTitles:nil, nil];
[alerta show];
}
return res;
}

Answer 1

Finally I have been able to perform the massive bulk of events without failures, I have modified the methods being as follows:
- (void) addCalendarEvents: (EKCalendar *) cal store: (EKEventStore *) eventStore {
if (!SYSTEM_VERSION_LESS_THAN(#"6.0")) {
// iOS 6 and later
[eventStore requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {
if (granted) {
//se añade cada uno de los eventos
for (int i=0; i < [calendario.eventos count]; i++) {
#autoreleasepool {
NSDictionary * nextDict = [calendario.eventos objectAtIndex:i];
Evento_DTO * evento_dto = [[Evento_DTO alloc] initWithEventos:nextDict];
[self addEventCalendar: evento_dto calendar: cal.calendarIdentifier store: eventStore];
}
}
} else {
// code here for when the user does NOT allow your app to access the calendar
alerta = [[UIAlertView alloc]initWithTitle:AMLocalizedString(#"Error", #"")
message:AMLocalizedString(#"errorPermisosCal", #"")
delegate:self
cancelButtonTitle:#"OK"
otherButtonTitles:nil, nil];
[alerta show];
}
}];
}else{
alerta = [[UIAlertView alloc]initWithTitle:AMLocalizedString(#"Error", #"")
message:AMLocalizedString(#"Event version", #"")
delegate:self
cancelButtonTitle:#"OK"
otherButtonTitles:nil, nil];
[alerta show];
}
}
And the function that adds the event to the calendar is as follows:
-(void)addEventCalendar: (Evento_DTO *) evento calendar: (NSString *) cal store: (EKEventStore *) eventStore{
//Obtenemos las fechas del evento
Fecha_DTO *fechaStart = [[Fecha_DTO alloc] initWithFecha:(NSDictionary *)evento.dtStart];
Fecha_DTO *fechaEnd = [[Fecha_DTO alloc] initWithFecha:(NSDictionary *)evento.dtEnd];
// Format the dates to type NSDate
// Start Date
NSDateFormatter* df = [[NSDateFormatter alloc] init];
[df setDateFormat:#"yyyyMMdd'T'HHmmss"];
if (fechaStart.tzid == nil) {
[df setTimeZone: [NSTimeZone systemTimeZone]];
}else{
[df setTimeZone:[NSTimeZone timeZoneWithName:fechaStart.tzid]];
}
NSDate* parsedDateS = [df dateFromString: fechaStart.fecha];
// End Date
NSDateFormatter* df2 = [[NSDateFormatter alloc] init];
[df2 setDateFormat:#"yyyyMMdd'T'HHmmss"];
if (fechaEnd.tzid == nil) {
[df2 setTimeZone: [NSTimeZone systemTimeZone]];
}else{
[df2 setTimeZone:[NSTimeZone timeZoneWithName:fechaEnd.tzid]];
}
NSDate* parsedDateE = [df2 dateFromString: fechaEnd.fecha];
//rRules
NSString *rfc2445String = evento.rRule;
EKRecurrenceRule *recurrenceRule;
if (![rfc2445String isEqualToString:#""]) {
recurrenceRule = [[EKRecurrenceRule alloc] initWithString:rfc2445String andTimezone:fechaStart.tzid];
//NSLog(#"RRule: %#", recurrenceRule);
}
if(parsedDateS!=nil){
EKEvent *event = [EKEvent eventWithEventStore:eventStore];
event.title = evento.summary;
event.notes = evento.description;
event.location = evento.location;
event.startDate = parsedDateS;
event.endDate = parsedDateE;
if (![rfc2445String isEqualToString:#""])
event.recurrenceRules = [NSArray arrayWithObject:recurrenceRule];
event.calendar = [eventStore calendarWithIdentifier: cal];
NSError *err = nil;
BOOL success = [eventStore saveEvent:event span:EKSpanThisEvent commit:YES error:&err];
if(!success){
if (err) {
NSLog(#"Calendar was not set: %li %#", (long)err.code, err.description);
}
}else{
NSLog(#"Added Event");
}
}else{
NSLog(#"The start date is null");
}
df = nil;
df2 = nil;
}
I hope it helps somebody.