Bagaimana cara menghitung waktu yang telah berlalu dalam beberapa jam antara dua waktu (mungkin terjadi pada hari yang berbeda) di iOS?
Bagaimana cara menghitung waktu yang telah berlalu dalam beberapa jam antara dua waktu (mungkin terjadi pada hari yang berbeda) di iOS?
Jawaban:
The NSDate fungsi timeIntervalSinceDate: akan memberikan perbedaan dari dua tanggal dalam hitungan detik.
NSDate* date1 = someDate;
NSDate* date2 = someOtherDate;
NSTimeInterval distanceBetweenDates = [date1 timeIntervalSinceDate:date2];
double secondsInAnHour = 3600;
NSInteger hoursBetweenDates = distanceBetweenDates / secondsInAnHour;
Lihat, perpustakaan referensi apel http://developer.apple.com/library/mac/navigation/ atau jika Anda menggunakan Xcode pilih saja bantuan / dokumentasi dari menu.
Lihat: cara-mengubah-an-nstimeinterval-detik-ke-menit
--edit: Lihat jawaban ÐąrέÐέvil di bawah untuk menangani dengan benar pergeseran waktu siang hari / detik kabisat
NSCalendar *c = [NSCalendar currentCalendar];
NSDate *d1 = [NSDate date];
NSDate *d2 = [NSDate dateWithTimeIntervalSince1970:1340323201];//2012-06-22
NSDateComponents *components = [c components:NSHourCalendarUnit fromDate:d2 toDate:d1 options:0];
NSInteger diff = components.minute;
NSDayCalendarUnit|NSHourCalendarUnit|NSMinuteCalendarUnit
Ubah komponen yang diperlukan menjadi hari, jam atau menit, perbedaan yang Anda inginkan. Jika NSDayCalendarUnit
dipilih maka itu akan mengembalikan jumlah hari antara dua tanggal serupa untuk NSHourCalendarUnit
danNSMinuteCalendarUnit
Versi Swift 4
let cal = Calendar.current
let d1 = Date()
let d2 = Date.init(timeIntervalSince1970: 1524787200) // April 27, 2018 12:00:00 AM
let components = cal.dateComponents([.hour], from: d2, to: d1)
let diff = components.hour!
-(NSMutableString*) timeLeftSinceDate: (NSDate *) dateT {
NSMutableString *timeLeft = [[NSMutableString alloc]init];
NSDate *today10am =[NSDate date];
NSInteger seconds = [today10am timeIntervalSinceDate:dateT];
NSInteger days = (int) (floor(seconds / (3600 * 24)));
if(days) seconds -= days * 3600 * 24;
NSInteger hours = (int) (floor(seconds / 3600));
if(hours) seconds -= hours * 3600;
NSInteger minutes = (int) (floor(seconds / 60));
if(minutes) seconds -= minutes * 60;
if(days) {
[timeLeft appendString:[NSString stringWithFormat:@"%ld Days", (long)days*-1]];
}
if(hours) {
[timeLeft appendString:[NSString stringWithFormat: @"%ld H", (long)hours*-1]];
}
if(minutes) {
[timeLeft appendString: [NSString stringWithFormat: @"%ld M",(long)minutes*-1]];
}
if(seconds) {
[timeLeft appendString:[NSString stringWithFormat: @"%lds", (long)seconds*-1]];
}
return timeLeft;
}
Pembayaran: Ini menangani penghematan siang hari, tahun kabisat karena menggunakan kalender iOS untuk menghitung. Anda dapat mengubah string dan ketentuan untuk menyertakan menit dengan jam dan hari.
+(NSString*)remaningTime:(NSDate*)startDate endDate:(NSDate*)endDate {
NSDateComponents *components;
NSInteger days;
NSInteger hour;
NSInteger minutes;
NSString *durationString;
components = [[NSCalendar currentCalendar] components: NSCalendarUnitDay|NSCalendarUnitHour|NSCalendarUnitMinute
fromDate: startDate toDate: endDate options: 0];
days = [components day];
hour = [components hour];
minutes = [components minute];
if (days > 0) {
if (days > 1) {
durationString = [NSString stringWithFormat:@"%d days", days];
}
else {
durationString = [NSString stringWithFormat:@"%d day", days];
}
return durationString;
}
if (hour > 0) {
if (hour > 1) {
durationString = [NSString stringWithFormat:@"%d hours", hour];
}
else {
durationString = [NSString stringWithFormat:@"%d hour", hour];
}
return durationString;
}
if (minutes > 0) {
if (minutes > 1) {
durationString = [NSString stringWithFormat:@"%d minutes", minutes];
}
else {
durationString = [NSString stringWithFormat:@"%d minute", minutes];
}
return durationString;
}
return @"";
}
Bagi yang menggunakan swift 3 ke atas,
let dateString1 = "2018-03-15T14:20:00.000Z"
let dateString2 = "2018-03-20T14:20:00.000Z"
let Dateformatter = DateFormatter()
Dateformatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSZ"
let date1 = Dateformatter.date(from: dateString1)
let date2 = Dateformatter.date(from: dateString2)
let distanceBetweenDates: TimeInterval? = date2?.timeIntervalSince(date1!)
let secondsInAnHour: Double = 3600
let secondsInDays: Double = 86400
let secondsInWeek: Double = 604800
let hoursBetweenDates = Int((distanceBetweenDates! / secondsInAnHour))
let daysBetweenDates = Int((distanceBetweenDates! / secondsInDays))
let weekBetweenDates = Int((distanceBetweenDates! / secondsInWeek))
print(weekBetweenDates,"weeks")//0 weeks
print(daysBetweenDates,"days")//5 days
print(hoursBetweenDates,"hours")//120 hours
NSCalendar
's-components:fromDate:toDate:options:
metode.