如何从日期数组创建ios LocalNotification?
我有一系列的日期如何从日期数组创建ios LocalNotification?,ios,uilocalnotification,Ios,Uilocalnotification,我有一系列的日期 NSArray *datesArray=[NSArray arrayWithObjects: @"2014-09-14 00:00:00",@"2014-08-21 07:12:36",@"2014-08-14 00:00:00",@"2014-07-14 00:00:00",@"2014-06-14 00:00:00",@"2015-01-01 10:00:00",@"2014-06-14 00:00:00",@"2014-05-14 11:24:15", nil]; 现在
NSArray *datesArray=[NSArray arrayWithObjects: @"2014-09-14 00:00:00",@"2014-08-21 07:12:36",@"2014-08-14 00:00:00",@"2014-07-14 00:00:00",@"2014-06-14 00:00:00",@"2015-01-01 10:00:00",@"2014-06-14 00:00:00",@"2014-05-14 11:24:15", nil];
现在我想在数组中可用的日期前一天开火
如何实施
我在试这个
NSDateFormatter *Formatter1 = [[NSDateFormatter alloc] init];
[Formatter1 setLocale:[[NSLocale alloc] initWithLocaleIdentifier:NSLocaleIdentifier]];
[Formatter1 setTimeZone:[NSTimeZone timeZoneWithName:@"UTC"]];
[Formatter1 setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
UILocalNotification *localNotif = [[UILocalNotification alloc] init];
NSDate *date1 =[NSDate date];
NSString *string =[Formatter1 stringFromDate:date1];
NSLog(@"sring %@",string);
NSDate *todaydate =[Formatter1 dateFromString:string];
NSLog(@"2day date is %@",todaydate);
for (int i=0;i<datesArray.count;i++)
{
NSDate *_date =[Formatter1 dateFromString:[datesArray objectAtIndex:i ]];
NSLog(@"date is %@",_date);
if(_date == todaydate){
localNotif.fireDate = _date;
localNotif.alertBody = @"festival";
localNotif.alertAction=@"Show me";
localNotif.applicationIconBadgeNumber = 1;
localNotif.soundName = UILocalNotificationDefaultSoundName;
[[UIApplication sharedApplication] scheduleLocalNotification:localNotif];
}
NSDateFormatter*Formatter1=[[NSDateFormatter alloc]init];
[Formatter1 setLocale:[[NSLocale alloc]initWithLocaleIdentifier:NSLocaleIdentifier]];
[Formatter1 setTimeZone:[NSTimeZone timeZoneWithName:@“UTC”];
[Formatter1 setDateFormat:@“yyyy-MM-dd HH:MM:ss”];
UILocalNotification*localNotif=[[UILocalNotification alloc]init];
NSDate*date1=[NSDate date];
NSString*string=[Formatter1 stringFromDate:date1];
NSLog(@“sring%@”,字符串);
NSDate*todaydate=[Formatter1 dateFromString:string];
NSLog(@“2天日期为%@”,今天日期);
对于(int i=0;i您可以使用NSCalendar
函数减去一天,特别是dateByAddingComponents
NSArray *datesArray = @[@"2014-09-14 00:00:00",@"2014-08-21 07:12:36",@"2014-08-14 00:00:00",@"2014-07-14 00:00:00",@"2014-06-14 00:00:00",@"2015-01-01 10:00:00",@"2014-06-14 00:00:00",@"2014-05-14 11:24:15"];
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *dateComponents = [[NSDateComponents alloc] init];
[dateComponents setDay:-1];
NSDateFormatter *Formatter1 = [[NSDateFormatter alloc] init];
[Formatter1 setLocale:[[NSLocale alloc] initWithLocaleIdentifier:NSLocaleIdentifier]];
[Formatter1 setTimeZone:[NSTimeZone timeZoneWithName:@"UTC"]];
[Formatter1 setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
[datesArray enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
UILocalNotification *localNotif = [[UILocalNotification alloc] init];
localNotif.fireDate = [calendar dateByAddingComponents:dateComponents toDate:[Formatter1 dateFromString:obj] options:0];
localNotif.alertBody = @"festival";
localNotif.alertAction = @"Show me";
localNotif.applicationIconBadgeNumber = 1;
localNotif.soundName = UILocalNotificationDefaultSoundName;
[[UIApplication sharedApplication] scheduleLocalNotification:localNotif];
}];
W关于代码样式的小说明-将Formatter1
更改为Formatter1
。类应以大写字母开头,变量应以小写字母开头。这将提高代码的清晰度。@Guy Kogus谢谢!!:):谢谢你的回答..每当我运行应用程序本地通知弹出窗口..它也会提前一天弹出?确实如此。查看取消通知,您可以使用cancelAllLocalNotifications
来执行此操作。如果您有对通知的引用,则可以取消特定通知:cancelLocalNotification:
。您可以使用scheduledLocalNotifications
获取参考-这将让您知道所有已安排的通知。在使用此方法添加另一个通知之前,您甚至可以检查是否存在具有相同日期的现有通知。很好,谢谢。还有一个问题..如果上面的datesarray是json对象,并且我想从UILocalNotification的json服务中提取它[NSJSONSerialization JSONObjectWithData:self.jsonData选项:0错误:NULL]
将返回一个字典,您可以调用它objectForKey:
on.ohk u mean我解析json,然后它可以动态地与UILocalNotification通信,在指定的日期为该事件提供特定事件的通知。因此,可以在ApplicationIdentinterBackground方法中完成解析,因为我希望在应用程序处于后台状态。