nsdate

I would like to compare two NSDates however every date shows as being "Earlier" than todaysDate . Any ideas? let compareResult = self.todaysDate.compare(self.date) if compareResult == NSComparisonResult.OrderedDescending { println("Today is later than date2") } else { println("Future") } To get "todaysDate" let todaysDate = NSDate() let calendar = NSCalendar.currentCalendar() let components = calendar.components(.CalendarUnitHour | .CalendarUnitMinute | .CalendarUnitMonth | .CalendarUnitYear | .CalendarUnitDay, fromDate: todaysDate) let hour = components.hour let minutes = components.minute

I need to check to see if the current date is during daylight savings time. In pseudocode that would be like this: let date = NSDate() if date.isDaylightSavingsTime { print("Success") } I haven't been able to find the solution to this anywhere on the internet. An NSDate alone represents an absolute point in time. To decide if a date is during daylight savings time or not it needs to be interpreted in the context of a time zone . Therefore you'll find that method in the NSTimeZone class and not in the NSDate class. Example: let date = NSDate() let tz = NSTimeZone.localTimeZone() if tz

I am trying to get the Unix timestamp using a particular time zone (not necessarily the same time zone as the system) I tried this : NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease]; [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"]; NSTimeZone *gmt = [NSTimeZone timeZoneWithName:@"Australia/Melbourne"]; [dateFormatter setTimeZone:gmt]; NSString *timeStamp = [dateFormatter stringFromDate:[NSDate date]]; NSDate *curdate = [dateFormatter dateFromString:timeStamp]; int unix_timestamp = [curdate timeIntervalSince1970]; This should apparently, give the Unix timestamp

I want to know which is this date format Friday, December 18th and also is this standard date format or i have to some hard work to get this. Thanks. I don't think the th is possible to achieve via formatters. Although you can do it like this: NSDate *today = [NSDate date]; NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init]; [dateFormat setDateFormat:@"EEEE, MMMM d"]; NSString *dateString = [dateFormat stringFromDate:today]; NSCalendar *cal = [NSCalendar currentCalendar]; unsigned unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit; NSDateComponents *dtComp =

I would like to know how my iOS app can get the datetime from a distant server (NTP ? Other..?), and not with local iPad datetime ; and transform it on NSDate. Thanks https://github.com/jbenet/ios-ntp seems to be a NTP framework for iOS which gives you [NSDate networkDate]; 来源： https://stackoverflow.com/questions/10851161/get-time-from-remote-server-for-ios-app

In my iPhone App I am storing image into NSData by UIImage *image =imageView.image; NSData *myData = UIImagePNGRepresentation(image); But How to get back "image" from " NSData " and I can display it again into in to UIImageView . Please Help and Suggest, Thanks. have you tried +[UIImage imageWithData:] ? UIImage *img=[UIImage imageWithData:data]; [yourImageView setImage:img]; 来源： https://stackoverflow.com/questions/4655174/iphone-how-to-get-image-back-from-nsdata