添加事件揭示功能

添加事件提醒功能

添加事件提醒功能

 

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 () 

@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 
@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 

@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   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 
#import 

@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

 

1楼lvable
前辈这个蛮好用的,发现最近好友新闻客户端都是这样的好

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