Bagaimana cara menambahkan 1 hari ke NSDate?

Pada dasarnya, seperti judulnya. Saya ingin tahu bagaimana saya bisa menambahkan 1 hari ke NSDate.

Jadi jika itu:

21st February 2011

Itu akan menjadi:

22nd February 2011

Atau jika itu:

31st December 2011

Itu akan menjadi:

1st January 2012.

Swift 5.0:

var dayComponent    = DateComponents()
dayComponent.day    = 1 // For removing one day (yesterday): -1
let theCalendar     = Calendar.current
let nextDate        = theCalendar.date(byAdding: dayComponent, to: Date())
print("nextDate : \(nextDate)")

Sasaran C:

NSDateComponents *dayComponent = [[NSDateComponents alloc] init];
dayComponent.day = 1;

NSCalendar *theCalendar = [NSCalendar currentCalendar];
NSDate *nextDate = [theCalendar dateByAddingComponents:dayComponent toDate:[NSDate date] options:0];

NSLog(@"nextDate: %@ ...", nextDate);

Ini harus jelas.

Karena iOS 8 dapat Anda gunakan NSCalendar.dateByAddingUnit

Contoh dalam Swift 1.x:

let today = NSDate()
let tomorrow = NSCalendar.currentCalendar()
    .dateByAddingUnit(
         .CalendarUnitDay, 
         value: 1, 
         toDate: today, 
         options: NSCalendarOptions(0)
    )

Swift 2.0:

let today = NSDate()
let tomorrow = NSCalendar.currentCalendar()
    .dateByAddingUnit(
        .Day, 
        value: 1, 
        toDate: today, 
        options: []
    )

Swift 3.0:

let today = Date()
let tomorrow = Calendar.current.date(byAdding: .day, value: 1, to: today)

Diperbarui untuk Swift 5

let today = Date()
let nextDate = Calendar.current.date(byAdding: .day, value: 1, to: today)

Tujuan C

 NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
 // now build a NSDate object for the next day
 NSDateComponents *offsetComponents = [[NSDateComponents alloc] init];
 [offsetComponents setDay:1];
 NSDate *nextDate = [gregorian dateByAddingComponents:offsetComponents toDate: [NSDate date] options:0];

iOS 8+, OSX 10.9+, Objective-C

NSCalendar *cal = [NSCalendar currentCalendar];    
NSDate *tomorrow = [cal dateByAddingUnit:NSCalendarUnitDay 
                                   value:1 
                                  toDate:[NSDate date] 
                                 options:0];

Sebuah bekerja pelaksanaan Swift 3 + berdasarkan highmaintenance ini jawaban dan vikingosegundo ini komentar. Ekstensi Tanggal ini juga memiliki opsi tambahan untuk mengubah tahun, bulan, dan waktu:

extension Date {

    /// Returns a Date with the specified amount of components added to the one it is called with
    func add(years: Int = 0, months: Int = 0, days: Int = 0, hours: Int = 0, minutes: Int = 0, seconds: Int = 0) -> Date? {
        let components = DateComponents(year: years, month: months, day: days, hour: hours, minute: minutes, second: seconds)
        return Calendar.current.date(byAdding: components, to: self)
    }

    /// Returns a Date with the specified amount of components subtracted from the one it is called with
    func subtract(years: Int = 0, months: Int = 0, days: Int = 0, hours: Int = 0, minutes: Int = 0, seconds: Int = 0) -> Date? {
        return add(years: -years, months: -months, days: -days, hours: -hours, minutes: -minutes, seconds: -seconds)
    }

}

Penggunaan untuk hanya menambah satu hari seperti yang diminta OP akan menjadi:

let today = Date() // date is then today for this example
let tomorrow = today.add(days: 1)

Swift 4.0 (sama seperti Swift 3.0 dalam jawaban yang luar biasa ini hanya menjelaskan untuk pemula seperti saya)

let today = Date()
let yesterday = Calendar.current.date(byAdding: .day, value: -1, to: today)

Gunakan fungsi di bawah ini dan gunakan parameter hari untuk mendapatkan tanggal hari. Kepala / hari

+ (NSDate *) getDate:(NSDate *)fromDate daysAhead:(NSUInteger)days
{
    NSDateComponents *dateComponents = [[NSDateComponents alloc] init];
    dateComponents.day = days;
    NSCalendar *calendar = [NSCalendar currentCalendar];
    NSDate *previousDate = [calendar dateByAddingComponents:dateComponents
                                                     toDate:fromDate
                                                    options:0];
    [dateComponents release];
    return previousDate;
}

Dengan cepat

var dayComponenet = NSDateComponents()
dayComponenet.day = 1

var theCalendar = NSCalendar.currentCalendar()
var nextDate = theCalendar.dateByAddingComponents(dayComponenet, toDate: NSDate(), options: nil)

Ini berhasil!

    NSCalendar *calendar = [NSCalendar currentCalendar];
    NSCalendarUnit unit = NSCalendarUnitDay;
    NSInteger value = 1;
    NSDate *today = [NSDate date];
    NSDate *tomorrow = [calendar dateByAddingUnit:unit value:value toDate:today options:NSCalendarMatchStrictly];

Implementasi Swift 3.0 yang sangat sederhana adalah:

func dateByAddingDays(inDays: Int) -> Date {
    let today = Date()
    return Calendar.current.date(byAdding: .day, value: inDays, to: today)!
}

NSDate *today=[NSDate date];
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier: NSGregorianCalendar];
NSDateComponents *components=[[NSDateComponents alloc] init];
components.day=1;
NSDate *targetDate =[calendar dateByAddingComponents:components toDate:today options: 0];

Cepat 4.0

extension Date {
    func add(_ unit: Calendar.Component, value: Int) -> Date? {
        return Calendar.current.date(byAdding: unit, value: value, to: self)
    }
}

Pemakaian

date.add(.day, 3)!   // adds 3 days
date.add(.day, -14)!   // subtracts 14 days

Catatan: Jika Anda tidak tahu mengapa baris kode diakhiri dengan tanda seru, cari "Swift Optionals" di Google.

Anda dapat menggunakan metode NSDate di - (id)dateByAddingTimeInterval:(NSTimeInterval)secondsmana secondsakan berada60 * 60 * 24 = 86400

Di Swift 2.1.1 dan xcode 7.1 OSX 10.10.5, Anda dapat menambahkan beberapa hari ke depan dan ke belakang menggunakan fungsi

func addDaystoGivenDate(baseDate:NSDate,NumberOfDaysToAdd:Int)->NSDate
{
    let dateComponents = NSDateComponents()
    let CurrentCalendar = NSCalendar.currentCalendar()
    let CalendarOption = NSCalendarOptions()

    dateComponents.day = NumberOfDaysToAdd

    let newDate = CurrentCalendar.dateByAddingComponents(dateComponents, toDate: baseDate, options: CalendarOption)
    return newDate!
}

panggilan fungsi untuk menambah tanggal saat ini sebanyak 9 hari

var newDate = addDaystoGivenDate(NSDate(), NumberOfDaysToAdd: 9)
print(newDate)

panggilan fungsi untuk tanggal saat ini pengurangan sebesar 80 hari

newDate = addDaystoGivenDate(NSDate(), NumberOfDaysToAdd: -80)
 print(newDate)

Berikut adalah metode tujuan umum yang memungkinkan Anda menambah / mengurangi segala jenis unit (Tahun / Bulan / Hari / Jam / Detik, dll.) Pada tanggal yang ditentukan.

Menggunakan Swift 2.2

func addUnitToDate(unitType: NSCalendarUnit, number: Int, date:NSDate) -> NSDate {

    return NSCalendar.currentCalendar().dateByAddingUnit(
        unitType,
        value: number,
        toDate: date,
        options: NSCalendarOptions(rawValue: 0))!

}

print( addUnitToDate(.Day, number: 1, date: NSDate()) ) // Adds 1 Day To Current Date
print( addUnitToDate(.Hour, number: 1, date: NSDate()) ) // Adds 1 Hour To Current Date
print( addUnitToDate(.Minute, number: 1, date: NSDate()) ) // Adds 1 Minute To Current Date

// NOTE: You can use negative values to get backward values too

NSDateComponents *dayComponent = [[[NSDateComponents alloc] init] autorelease];
dayComponent.day = 1;

NSCalendar *theCalendar = [NSCalendar currentCalendar];
dateToBeIncremented = [theCalendar dateByAddingComponents:dayComponent toDate:dateToBeIncremented options:0];

Ok - saya pikir ini akan bekerja untuk saya. Namun, jika Anda menggunakannya untuk menambah hari ke 31 Maret 2013, itu akan mengembalikan tanggal yang hanya 23 jam ditambahkan ke dalamnya. Mungkin sebenarnya memiliki 24, tetapi menggunakan dalam perhitungan hanya 23:00 jam ditambahkan.

Demikian pula, jika Anda maju ke 28 Oktober 2013, kode menambahkan 25 jam sehingga menghasilkan waktu tanggal 2013-10-28 01:00:00.

Untuk menambah satu hari saya melakukan hal di atas, menambahkan:

NSDate *newDate1 = [now dateByAddingTimeInterval:60*60*24*daysToAdd];

Rumit, terutama karena penghematan siang hari.

NSDate *now = [NSDate date];
int daysToAdd = 1;
NSDate *tomorrowDate = [now dateByAddingTimeInterval:60*60*24*daysToAdd];

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"EEEE, dd MMM yyyy"];
NSLog(@"%@", [dateFormatter stringFromDate:tomorrowDate]);

Dengan cepat Anda dapat membuat ekstensi untuk menambahkan metode di NSDate

extension NSDate {
    func addNoOfDays(noOfDays:Int) -> NSDate! {
        let cal:NSCalendar = NSCalendar.currentCalendar()
        cal.timeZone = NSTimeZone(abbreviation: "UTC")!
        let comps:NSDateComponents = NSDateComponents()
        comps.day = noOfDays
        return cal.dateByAddingComponents(comps, toDate: self, options: nil)
    }
}

Anda dapat menggunakan ini sebagai

NSDate().addNoOfDays(3)

Pembaruan untuk Swift 4:

let now = Date() // the current date/time
let oneDayFromNow = Calendar.current.date(byAdding: .day, value: 1, to: now) // Tomorrow with same time of day as now

untuk swift 2.2:

let today = NSDate()
let tomorrow = NSCalendar.currentCalendar().dateByAddingUnit(
        .Day,
        value: 1,
        toDate: today,
        options: NSCalendarOptions.MatchStrictly)

Semoga ini bisa membantu seseorang!

Swift 4, jika yang Anda butuhkan adalah shift 24 jam (60 * 60 * 24 detik) dan bukan "1 hari kalender"

Masa depan: let dayAhead = Date(timeIntervalSinceNow: TimeInterval(86400.0))

Lalu: let dayAgo = Date(timeIntervalSinceNow: TimeInterval(-86400.0))

pembaruan untuk swift 5

let nextDate = fromDate.addingTimeInterval(60*60*24)

NSDate *now = [NSDate date];
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *components = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:now];
NSDate *startDate = [calendar dateFromComponents:components];
NSLog(@"StartDate = %@", startDate);

components.day += 1;
NSDate *endDate = [calendar dateFromComponents:components];
NSLog(@"EndDate = %@", endDate);

Saya memiliki masalah yang sama; gunakan ekstensi untuk NSDate:

- (id)dateByAddingYears:(NSUInteger)years
                 months:(NSUInteger)months
                   days:(NSUInteger)days
                  hours:(NSUInteger)hours
                minutes:(NSUInteger)minutes
                seconds:(NSUInteger)seconds
{
    NSDateComponents * delta = [[[NSDateComponents alloc] init] autorelease];
    NSCalendar * gregorian = [[[NSCalendar alloc]
                               initWithCalendarIdentifier:NSCalendarIdentifierGregorian] autorelease];

    [delta setYear:years];
    [delta setMonth:months];
    [delta setDay:days];
    [delta setHour:hours];
    [delta setMinute:minutes];
    [delta setSecond:seconds];

    return [gregorian dateByAddingComponents:delta toDate:self options:0];
}

Swift 2.0

let today = NSDate()    
let calendar = NSCalendar.currentCalendar()
let tomorrow = calendar.dateByAddingUnit(.Day, value: 1, toDate: today, options: NSCalendarOptions.MatchFirst)

Di swift 4 atau swift 5, Anda bisa menggunakan seperti di bawah ini:

    let date = Date()
    let yesterday = Calendar.current.date(byAdding: .day, value: -1, to: date)
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "yyyy-MM-dd"
    let yesterday_date = dateFormatter.string(from: yesterday!)
    print("yesterday->",yesterday_date)

keluaran:

Current date: 2020-03-02
yesterday date: 2020-03-01

Ekstensi string: Konversi String_Date> Tanggal

extension String{
  func DateConvert(oldFormat:String)->Date{ // format example: yyyy-MM-dd HH:mm:ss 
    let isoDate = self
    let dateFormatter = DateFormatter()
    dateFormatter.locale = Locale(identifier: "en_US_POSIX") // set locale to reliable US_POSIX
    dateFormatter.dateFormat = oldFormat
    return dateFormatter.date(from:isoDate)!
  }
}

Ekstensi tanggal: Konversi Tanggal> String

extension Date{
 func DateConvert(_ newFormat:String)-> String{
    let formatter = DateFormatter()
    formatter.dateFormat = newFormat
    return formatter.string(from: self)
 }
}

Ekstensi tanggal: Dapatkan +/- Tanggal

extension String{
  func next(day:Int)->Date{
    var dayComponent    = DateComponents()
    dayComponent.day    = day
    let theCalendar     = Calendar.current
    let nextDate        = theCalendar.date(byAdding: dayComponent, to: Date())
    return nextDate!
  }

 func past(day:Int)->Date{
    var pastCount = day
    if(pastCount>0){
        pastCount = day * -1
    }
    var dayComponent    = DateComponents()
    dayComponent.day    = pastCount
    let theCalendar     = Calendar.current
    let nextDate        = theCalendar.date(byAdding: dayComponent, to: Date())
    return nextDate!
 }
}

Pemakaian:

let today = Date()
let todayString = "2020-02-02 23:00:00"
let newDate = today.DateConvert("yyyy-MM-dd HH:mm:ss") //2020-02-02 23:00:00
let newToday = todayString.DateConvert(oldFormat: "yyyy-MM-dd HH:mm:ss")//2020-02-02
let newDatePlus = today.next(day: 1)//2020-02-03 23:00:00
let newDateMinus = today.past(day: 1)//2020-02-01 23:00:00

referensi: dari banyak pertanyaan
Bagaimana cara menambahkan 1 hari ke NSDate?
fungsi matematika untuk mengubah int positif ke negatif dan negatif ke positif?
Konversi NSString ke NSDate (dan kembali lagi)

Gunakan kode berikut:

NSDate *now = [NSDate date];
int daysToAdd = 1;
NSDate *newDate1 = [now dateByAddingTimeInterval:60*60*24*daysToAdd];

Sebagai

addTimeInterval

sekarang sudah ditinggalkan.