Objective c EKCalendar标题返回空ios 11
这段代码在ios 11之前运行良好,但现在在ios 11中,ID运行良好,但标题返回nullObjective c EKCalendar标题返回空ios 11,objective-c,null,title,ios11,ekcalendar,Objective C,Null,Title,Ios11,Ekcalendar,这段代码在ios 11之前运行良好,但现在在ios 11中,ID运行良好,但标题返回null NSArray *availablePersonalCalendars = [eventStore calendarsForEntityType:EKEntityTypeEvent]; for (EKCalendar *cal in availablePersonalCalendars) { NSLog(@"ID: %@", cal.calendarIdentifier); NSLo
NSArray *availablePersonalCalendars = [eventStore calendarsForEntityType:EKEntityTypeEvent];
for (EKCalendar *cal in availablePersonalCalendars) {
NSLog(@"ID: %@", cal.calendarIdentifier);
NSLog(@"Title: %@", cal.title)
}
如果你知道如何解决这个问题,请帮助我。
谢谢,我已经使用了此代码,并且在iOS 11中工作正常:
EKEventStore *store = [[EKEventStore alloc] init];
[store requestAccessToEntityType:EKEntityTypeEvent
completion:^(BOOL granted, NSError * _Nullable error) {
NSArray *availablePersonalCalendars = [store calendarsForEntityType:EKEntityTypeEvent];
for (EKCalendar *cal in availablePersonalCalendars) {
NSLog(@"ID: %@", cal.calendarIdentifier);
NSLog(@"Title: %@", cal.title);
}
}];
还要确保在plist中包含NSCalendarsUsageDescription键,以及如何使用此信息的解释文本
您应该存储对
EKEventStore
对象的引用。不知何故,这与日历标题的缺失有关。在查询日历之前,不要忘记请求权限
目标-C:
@interface Some ()
@property (nonatomic) EKEventStore *store;
@property (nonatomic) NSArray<EKCalendar *> *calendars;
@end
@implementation Some
- (void)prepare
{
self.store = [EKEventStore new];
self.calendars = @[];
}
- (void)loadCalendars
{
self.calendars = [self.store calendarsForEntityType:EKEntityTypeEvent];
}
@end
let store = EKEventStore()
var calendars: [EKCalendar] = []
func loadCalendars() {
calendars = store.calendars(for: .event)
}
好的,完整的答案。在我的例子中,通过将EKEventStore*存储定义为类变量而不是局部变量,解决了我的问题。