添加事件提醒功能
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效果
源码
//// ViewController.m// Event//// Created by YouXianMing on 16/7/12.// Copyright © 2016年 YouXianMing. All rights reserved.//#import "ViewController.h"#import "CalendarEvent.h"@interface ViewController () <CalendarEventDelegate>@end@implementation ViewController- (void)viewDidLoad { [super viewDidLoad]; NSTimeInterval hour = 60.f * 60.f; NSDate *currentDate = [NSDate date]; CalendarEvent *event = [CalendarEvent new]; event.eventTitle = @"不作死就不会死"; event.startDate = [NSDate dateWithTimeInterval:hour * 1 sinceDate:currentDate]; event.endDate = [NSDate dateWithTimeInterval:hour * 2 sinceDate:currentDate]; event.alarmDate = [NSDate dateWithTimeInterval:hour * 0.5f sinceDate:currentDate]; event.eventLocation = @"大北京"; event.delegate = self; [event save];}- (void)calendarEvent:(CalendarEvent *)event removedStatus:(ECalendarEventStatus)status error:(NSError *)error { if (status == kCalendarEventAccessSavedSucess) { NSLog(@"保存成功"); }}@end//// CalendarEvent.h// EventStore//// Created by YouXianMing on 16/7/8.// Copyright © 2016年 XianMing You. All rights reserved.//#import <Foundation/Foundation.h>@class CalendarEvent;typedef enum : NSUInteger { /** * Have not permission to save the event to system. */ kCalendarEventAccessDenied = 1000, /** * Saved the event success. */ kCalendarEventAccessSavedSucess, /** * Saved the event failed. */ kCalendarEventAccessSavedFailed, /** * Removed the event success. */ kCalendarEventAccessRemovedSucess, /** * Removed the event failed. */ kCalendarEventAccessRemovedFailed, } ECalendarEventStatus;@protocol CalendarEventDelegate <NSObject>@optional/** * The CalendarEvent saved status. * * @param event CalendarEvent's object. * @param status Saved status. * @param error Error infomation. */- (void)calendarEvent:(CalendarEvent *)event savedStatus:(ECalendarEventStatus)status error:(NSError *)error;/** * The CalendarEvent removed status. * * @param event CalendarEvent's object. * @param status Removed status. * @param error Error infomation. */- (void)calendarEvent:(CalendarEvent *)event removedStatus:(ECalendarEventStatus)status error:(NSError *)error;@end@interface CalendarEvent : NSObject/** * Event title. */@property (nonatomic, strong) NSString *eventTitle;/** * Alarm date. */@property (nonatomic, strong) NSDate *alarmDate;/** * Event start date. */@property (nonatomic, strong) NSDate *startDate;/** * Event end date. */@property (nonatomic, strong) NSDate *endDate;/** * Event location. */@property (nonatomic, strong) NSString *eventLocation;/** * CalendarEvent's delegate. */@property (nonatomic, weak) id <CalendarEventDelegate> delegate;/** * Save the event to system. */- (void)save;/** * Remove the event. */- (void)remove;/** * To indicate the event have saved or not. * * @return */- (BOOL)haveSaved;#pragma mark - Constructor method.+ (instancetype)calendarEventWithEventTitle:(NSString *)title startDate:(NSDate *)startDate endDate:(NSDate *)endDate;@end//// CalendarEvent.m// EventStore//// Created by YouXianMing on 16/7/8.// Copyright © 2016年 XianMing You. All rights reserved.//#import "CalendarEvent.h"#import <CommonCrypto/CommonDigest.h>#import <EventKit/EventKit.h>@implementation CalendarEvent- (void)remove { NSString *eventId = [[NSUserDefaults standardUserDefaults] objectForKey:[self storedKey]]; if (eventId) { EKEventStore *eventStore = [[EKEventStore alloc] init]; EKEvent *event = [eventStore eventWithIdentifier:eventId]; NSError *error = nil; [eventStore removeEvent:event span:EKSpanThisEvent error:&error]; if (self.delegate && [self.delegate respondsToSelector:@selector(calendarEvent:removedStatus:error:)]) { dispatch_async(dispatch_get_main_queue(), ^{ [self.delegate calendarEvent:self removedStatus:error ? kCalendarEventAccessRemovedFailed : kCalendarEventAccessRemovedSucess error:nil]; }); } }}- (BOOL)haveSaved { NSString *eventId = [[NSUserDefaults standardUserDefaults] objectForKey:[self storedKey]]; if (eventId.length) { return YES; } else { return NO; }}- (void)save { NSParameterAssert(self.eventTitle); NSParameterAssert(self.startDate); NSParameterAssert(self.endDate); EKEventStore *eventStore = [[EKEventStore alloc] init]; [eventStore requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) { if (granted) { EKEvent *event = [EKEvent eventWithEventStore:eventStore]; event.calendar = [eventStore defaultCalendarForNewEvents]; event.title = self.eventTitle; event.startDate = self.startDate; event.endDate = self.endDate; self.alarmDate ? [event addAlarm:[EKAlarm alarmWithAbsoluteDate:self.alarmDate]] : 0; self.eventLocation.length ? event.location = self.eventLocation : 0; NSError *savedError = nil; if ([eventStore saveEvent:event span:EKSpanThisEvent commit:YES error:&savedError]) { if (self.delegate && [self.delegate respondsToSelector:@selector(calendarEvent:savedStatus:error:)]) { dispatch_async(dispatch_get_main_queue(), ^{ [self.delegate calendarEvent:self savedStatus:kCalendarEventAccessSavedSucess error:nil]; }); } // 存储事件的键值 [[NSUserDefaults standardUserDefaults] setObject:event.eventIdentifier forKey:[self storedKey]]; } else { if (self.delegate && [self.delegate respondsToSelector:@selector(calendarEvent:savedStatus:error:)]) { dispatch_async(dispatch_get_main_queue(), ^{ [self.delegate calendarEvent:self savedStatus:kCalendarEventAccessSavedFailed error:savedError]; }); } } } else { if (self.delegate && [self.delegate respondsToSelector:@selector(calendarEvent:savedStatus:error:)]) { dispatch_async(dispatch_get_main_queue(), ^{ [self.delegate calendarEvent:self savedStatus:kCalendarEventAccessDenied error:error]; }); } } }];}- (NSString *)storedKey { NSParameterAssert(self.eventTitle); NSParameterAssert(self.startDate); NSParameterAssert(self.endDate); NSString *string = [NSString stringWithFormat:@"%@%@%@", self.eventTitle, self.startDate, self.endDate]; return [self md532BitLower:string];}- (NSString*)md532BitLower:(NSString *)string { const char *cStr = [string UTF8String]; unsigned char result[16]; CC_MD5(cStr, (unsigned int)strlen(cStr), result); return [[NSString stringWithFormat:@"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X", result[0], result[1], result[2], result[3], result[4], result[5], result[6], result[7], result[8], result[9], result[10], result[11], result[12], result[13], result[14], result[15]] lowercaseString];}+ (instancetype)calendarEventWithEventTitle:(NSString *)title startDate:(NSDate *)startDate endDate:(NSDate *)endDate { CalendarEvent *event = [[self class] new]; event.eventTitle = title; event.startDate = startDate; event.endDate = endDate; return event;}@end
原标题：添加事件提醒功能
关键词：
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