In my application I need to get the hour and minute separately:
NSString *currentHour=[string1 substringWithRange: NSMakeRange(0,2)];
int currentHourInNumber=[currentHour intValue];
Consider string1
contains 11:59:13 AM
which is coming from datepicker.
Here if I use above code, it's okay to get hour if it's greater than 9. Else I need to change NSMakeRange(0,1)
to get hour between 1 to 9.
Are there any methods to get the hour, minutes, etc?
Thanks in advance, please provide me sample code.
This question is related to
ios
objective-c
nsdate
hour
If you were to use the C library then this could be done:
time_t t;
struct tm * timeinfo;
time (&t);
timeinfo = localtime (&t);
NSLog(@"Hour: %d Minutes: %d", timeinfo->tm_hour, timeinfo->tm_min);
And using Swift:
var t = time_t()
time(&t)
let x = localtime(&t)
println("Hour: \(x.memory.tm_hour) Minutes: \(x.memory.tm_min)")
For further guidance see: http://www.cplusplus.com/reference/ctime/localtime/
NSDateComponents
All you need can be found here:
https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/DatesAndTimes/Articles/dtCalendars.html
Swift 2.0
You can do following thing to get hours and minute from a date :
let dateFromat = NSDateFormatter()
dateFromat.dateFormat = "hh:mm a"
let date = dateFromat.dateFromString(string1) // In your case its string1
print(date) // you will get - 11:59 AM
If you only need it for presenting as a string the following code is much easier
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"HH:mm"];
NSString *startTimeString = [formatter stringFromDate:startTimePicker.date];
With iOS 8, Apple introduced a helper method to retrieve the hour
, minute
, second
and nanosecond
from an NSDate object.
Objective-C
NSDate *date = [NSDate currentDate];
NSInteger hour = 0;
NSInteger minute = 0;
NSCalendar *currentCalendar = [NSCalendar currentCalendar];
[currentCalendar getHour:&hour minute:&minute second:NULL nanosecond:NULL fromDate:date];
NSLog(@"the hour is %ld and minute is %ld", (long)hour, (long)minute);
Swift
let date = NSDate()
var hour = 0
var minute = 0
let calendar = NSCalendar.currentCalendar()
if #available(iOS 8.0, *) {
calendar.getHour(&hour, minute: &minute, second: nil, nanosecond: nil, fromDate: date)
print("the hour is \(hour) and minute is \(minute)")
}
This seems to me to be what the question is after, no need for formatters:
NSDate *date = [NSDate date];
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *components = [calendar components:(NSCalendarUnitHour | NSCalendarUnitMinute) fromDate:date];
NSInteger hour = [components hour];
NSInteger minute = [components minute];
Swift 2.0
let dateNow = NSDate()
let calendar = NSCalendar.currentCalendar()
let hour = calendar.component(NSCalendarUnit.Hour, fromDate: dateNow)
let minute = calendar.component(NSCalendarUnit.Minute, fromDate: dateNow)
print(String(hour))
print(String(minute))
Please do take note of the cast to String in the print statement, you can easily assign that value to variables, like this:
var hoursString = String(hour)
var minutesString = String(minute)
Then you can concatenate values like this:
var compoundString = "\(hour):\(minute)"
print(compoundString)
Source: Stackoverflow.com