ios - 标题为 NSPredicate 的 EKEventStore 搜索事件

Question

我需要搜索添加到 iOS 日历的带有标题或注释的事件。我喜欢用 [NSPredicate predicateWithFormat:@"title like 'Callback'"] 搜索事件。

用谷歌搜索时，我只得到了 predicateForEventsWithStartDate。我们如何在 iOS 中获取/搜索带有标题或注释的事件。

Answer 1

你需要 2 个谓词来做到这一点

这里有一个注释示例:

// you init your store event
EKEventStore *store = [[EKEventStore alloc] init];

//you get the list of events
NSPredicate *datePredicate = [store predicateForEventsWithStartDate:[[NSDate date] dateByAddingTimeInterval: -86400.0] //yesterday
                                                            endDate:[NSDate date] //today
                                                          calendars:nil];
//this will return a list of EKEvent
NSArray<EKEvent *> *events = [store eventsMatchingPredicate:datePredicate];

//you create a second predicate to test on title or wethever you want
NSPredicate *textPredicate = [NSPredicate predicateWithFormat:@"title like 'Callback'"];

//here you will get the events with title like Callback
NSArray<EKEvent *> *results = [events filteredArrayUsingPredicate:textPredicate];