This may be useful for who want to use dateformatter.dateformat; if you want 12.09.18 you use dateformatter.dateformat = “dd.MM.yy” Wednesday, Sep 12, 2018 –> EEEE, MMM d, yyyy 09/12/2018 –> MM/dd/yyyy 09-12-2018 14:11 –> MM-dd-yyyy HH:mm Sep 12, 2:11 PM –> MMM d, h:mm a September 2018 –> MMMM yyyy Sep 12, 2018 –> MMM … Read more
some more option Now you want all the string formats that can be used with NSDateFormatter. Here is that a: AM/PM A: 0~86399999 (Millisecond of Day) c/cc: 1~7 (Day of Week) ccc: Sun/Mon/Tue/Wed/Thu/Fri/Sat cccc: Sunday/Monday/Tuesday/Wednesday/Thursday/Friday/Saturday d: 1~31 (0 padded Day of Month) D: 1~366 (0 padded Day of Year) e: 1~7 (0 … Read more
This isn’t perfect, but you could use [NSDate compare:] to check your date against both boundaries: NSDate *firstDate = … NSDate *secondDate = … NSDate *myDate = [NSDate date]; switch ([myDate compare:firstDate]) { case NSOrderedAscending: NSLog(@”myDate is older”); // do something break; case NSOrderedSame: NSLog(@”myDate is the same as firstDate”); // do something break; case … Read more
The standard ISO8601 date format with fractional seconds and time zone is yyyy-MM-dd’T’HH:mm:ss.SSSZ let myDate = “2016-06-20T13:01:46.457+02:00” let dateFormatter = NSDateFormatter() dateFormatter.locale = NSLocale(localeIdentifier: “en_US_POSIX”) // edited dateFormatter.dateFormat = “yyyy-MM-dd’T’HH:mm:ss.SSSZ” let date = dateFormatter.dateFromString(myDate)! dateFormatter.dateFormat = “dd/MM/yyyy” let dateString = dateFormatter.stringFromDate(date) Swift 3: let myDate = “2016-06-20T13:01:46.457+02:00” let dateFormatter = DateFormatter() dateFormatter.locale = Locale(identifier: “en_US_POSIX”) … Read more
If the date string is in GMT you can’t use your system Timezone to create the NSDate from the NSString. replace the first occurrence of [dateFormat setTimeZone:[NSTimeZone systemTimeZone]]; with [dateFormat setTimeZone:[NSTimeZone timeZoneWithName:@”GMT”]];
bbum’s answer provides a better way to design your application, but if you want your timer to fire regardless of whether the user is manipulating the UI or not you’ll need to add it to the tracking mode of the runloop. Assuming that you’re developing for the iPhone, that mode is UITrackingRunLoopMode. If you’re developing … Read more
If you’re really looking for direct analog to the method in your question, you could do something like: class MyObject { // define static variable private static let formatter: DateFormatter = { let formatter = DateFormatter() formatter.dateFormat = “EEE MMM dd HH:mm:ss Z yyyy” return formatter }() // you could use it like so func … Read more
NSCalendar *calendar = [NSCalendar currentCalendar]; NSInteger comps = (NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear); NSDateComponents *date1Components = [calendar components:comps fromDate: date1]; NSDateComponents *date2Components = [calendar components:comps fromDate: date2]; date1 = [calendar dateFromComponents:date1Components]; date2 = [calendar dateFromComponents:date2Components]; NSComparisonResult result = [date1 compare:date2]; if (result == NSOrderedAscending) { } else if (result == NSOrderedDescending) { } else { … Read more
Not tested, but you probably want something like this. NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; NSDate *currentDate = [NSDate date]; NSDateComponents *comps = [[NSDateComponents alloc] init]; [comps setYear:30]; NSDate *maxDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0]; [comps setYear:-30]; NSDate *minDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0]; [datePicker setMaximumDate:maxDate]; [datePicker setMinimumDate:minDate]; Update for Swift 4.1 let calendar = … Read more
Use an NSDateFormatter to convert string1 into an NSDate, then get the required NSDateComponents: Obj-C: NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@”<your date format goes here”]; NSDate *date = [dateFormatter dateFromString:string1]; NSCalendar *calendar = [NSCalendar currentCalendar]; NSDateComponents *components = [calendar components:(NSCalendarUnitHour | NSCalendarUnitMinute) fromDate:date]; NSInteger hour = [components hour]; NSInteger minute = [components minute]; … Read more