I want to get the minimum and maximum date from a date picker, but minimum date should be "- 18" of the current date and the maximum date should be "- 100" of current date.
我想从日期选择器获取最小和最大日期,但最小日期应为当前日期的“ - 18”,最大日期应为当前日期的“ - 100”。
Suppose current year is 2018 then I want minimum date 2000 and maximum date 1918.
假设当前年份是2018年,那么我想要最小日期2000和最大日期1918。
What I have done so far is :
到目前为止我所做的是:
NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *components = [gregorian components:NSYearCalendarUnit fromDate:[NSDate date]];
NSInteger year = [components year];
int mindt = year - 18;
int maxdt = year -100;
// NSDate * MinDate = [components year] - 18;
// NSDate * MaxDate = [components year] - 100;
// self.datePicker.minimumDate = MinDate;
// self.datePicker.maximumDate = MaxDate;
but I cant get this integer to my date format..
但是我不能把这个整数变成我的日期格式..
11 个解决方案
#1
58
Try this:
尝试这个:
NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDate *currentDate = [NSDate date];
NSDateComponents *comps = [[NSDateComponents alloc] init];
[comps setYear:-18];
NSDate *minDate = [gregorian dateByAddingComponents:comps toDate:currentDate options:0];
[comps setYear:-150];
NSDate *maxDate = [gregorian dateByAddingComponents:comps toDate:currentDate options:0];
[comps release];
self.datePicker.minimumDate = minDate;
self.datePicker.maximumDate = maxDate;
It may be easily translated to Swift:
它可以很容易地翻译成Swift:
let gregorian: NSCalendar = NSCalendar(calendarIdentifier: NSCalendarIdentifierGregorian)!
let currentDate: NSDate = NSDate()
let components: NSDateComponents = NSDateComponents()
components.year = -18
let minDate: NSDate = gregorian.dateByAddingComponents(components, toDate: currentDate, options: NSCalendarOptions(rawValue: 0))!
components.year = -150
let maxDate: NSDate = gregorian.dateByAddingComponents(components, toDate: currentDate, options: NSCalendarOptions(rawValue: 0))!
self.datePicker.minimumDate = minDate
self.datePicker.maximumDate = maxDate
#2
14
In Swift 2.1:
在Swift 2.1中:
let currentDate: NSDate = NSDate()
let calendar: NSCalendar = NSCalendar(calendarIdentifier: NSCalendarIdentifierGregorian)!
// let calendar: NSCalendar = NSCalendar.currentCalendar()
calendar.timeZone = NSTimeZone(name: "UTC")!
let components: NSDateComponents = NSDateComponents()
components.calendar = calendar
components.year = -18
let minDate: NSDate = calendar.dateByAddingComponents(components, toDate: currentDate, options: NSCalendarOptions(rawValue: 0))!
components.year = -150
let maxDate: NSDate = calendar.dateByAddingComponents(components, toDate: currentDate, options: NSCalendarOptions(rawValue: 0))!
self.dateOfBirthUIDatePicker.minimumDate = minDate
self.dateOfBirthUIDatePicker.maximumDate = maxDate
print("minDate: \(minDate)")
print("maxDate: \(maxDate)")
#3
12
This is how it would look like in 2017 (Swift 3)
这就是2017年的样子(Swift 3)
var components = DateComponents()
components.year = -100
let minDate = Calendar.current.date(byAdding: components, to: Date())
components.year = -18
let maxDate = Calendar.current.date(byAdding: components, to: Date())
datePicker.minimumDate = minDate
datePicker.maximumDate = maxDate
#4
10
Swift 4.1
extension UIDatePicker {
func set18YearValidation() {
let currentDate: Date = Date()
var calendar: Calendar = Calendar(identifier: Calendar.Identifier.gregorian)
calendar.timeZone = TimeZone(identifier: "UTC")!
var components: DateComponents = DateComponents()
components.calendar = calendar
components.year = -18
let maxDate: Date = calendar.date(byAdding: components, to: currentDate)!
components.year = -150
let minDate: Date = calendar.date(byAdding: components, to: currentDate)!
self.minimumDate = minDate
self.maximumDate = maxDate
} }
#5
6
Swift 3.0
Swift 3.0
let gregorian: NSCalendar = NSCalendar(calendarIdentifier: NSCalendar.Identifier.gregorian)!
let currentDate: Date = Date()
let components: NSDateComponents = NSDateComponents()
components.year = -150
let minDate: Date = gregorian.date(byAdding: components as DateComponents, to: currentDate, options: NSCalendar.Options(rawValue: 0))!
components.year = -16
let maxDate: Date = gregorian.date(byAdding: components as DateComponents, to: currentDate, options: NSCalendar.Options(rawValue: 0))!
self.datepicker.minimumDate = minDate
self.datepicker.maximumDate = maxDate
#6
2
In Objective C, NSDateComponents *comps = [[NSDateComponents alloc] init];
在Objective C中,NSDateComponents * comps = [[NSDateComponents alloc] init];
NSDateComponents *components = [calendar components:(NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay) fromDate:[NSDate date]];
NSInteger year = components.year;
NSInteger month = components.month;
NSInteger day = components.day;
NSInteger minimumYear = year - 1900;//Given some year here for example
NSInteger minimumMonth = month - 1;
NSInteger minimumDay = day - 1;
[comps setYear:-minimumYear];
[comps setMonth:-minimumMonth];
[comps setDay:-minimumDay];
NSDate *minDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
[datePicker setMinimumDate:minDate];
[datePicker setMaximumDate:[NSDate date]];
The minimum date would be January 01 1900. I hope it works for you all.. :)
最短的日期是1900年1月1日。我希望它对你们都有用.. :)
In Swift 2.0 or later
在Swift 2.0或更高版本中
let calendar = NSCalendar(calendarIdentifier:NSCalendarIdentifierGregorian);
let todayDate = NSDate()
let components = calendar?.components([NSCalendarUnit.Year,NSCalendarUnit.Month,NSCalendarUnit.Day], fromDate: todayDate)
let minimumYear = (components?.year)! - 1900
let minimumMonth = (components?.month)! - 1
let minimumDay = (components?.day)! - 1
let comps = NSDateComponents();
comps.year = -minimumYear
comps.month = -minimumMonth
comps.day = -minimumDay
let minDate = calendar?.dateByAddingComponents(comps, toDate: todayDate, options: NSCalendarOptions.init(rawValue: 0))
datePicker.minimumDate = minDate
datePicker.maximumDate = datePicker.date
#7
2
**Minimum and maximum date in UIDatePicker: #Swift
** UIDatePicker中的最短和最长日期:#Swift
**if you want to select the min and max date between two date value use below simple code: **
**如果您想在简单代码下面选择两个日期值之间的最小和最大日期:**
for Example : Min Date : 01-04-2017 and Max Date : 31-03-2018
例如:最小日期:01-04-2017和最大日期:31-03-2018
let calendar = Calendar.current
var minDateComponent = calendar.dateComponents([.day,.month,.year], from: Date())
minDateComponent.day = 01
minDateComponent.month = 04
minDateComponent.year = 2017
let minDate = calendar.date(from: minDateComponent)
print(" min date : \(String(describing: minDate))")
var maxDateComponent = calendar.dateComponents([.day,.month,.year], from: Date())
maxDateComponent.day = 0
maxDateComponent.month = 03 + 1
maxDateComponent.year = 2018
let maxDate = calendar.date(from: maxDateComponent)
print("max date : \(String(describing: maxDate))")
picker.minimumDate = minDate! as Date
picker.maximumDate = maxDate! as Date
#8
1
Swift 4.1
Swift 4.1
I have created my extension for all type of limit based on Calendar.Component
我已经基于Calendar.Component为所有类型的限制创建了我的扩展
extension UIDatePicker {
func setLimit(forCalendarComponent component:Calendar.Component, minimumUnit min: Int, maximumUnit max: Int) {
let currentDate: Date = Date()
var calendar: Calendar = Calendar(identifier: Calendar.Identifier.gregorian)
guard let timeZone = TimeZone(identifier: "UTC") else { return }
calendar.timeZone = timeZone
var components: DateComponents = DateComponents()
components.calendar = calendar
components.setValue(-min, for: component)
if let maxDate: Date = calendar.date(byAdding: components, to: currentDate) {
self.maximumDate = maxDate
}
components.setValue(-max, for: component)
if let minDate: Date = calendar.date(byAdding: components, to: currentDate) {
self.minimumDate = minDate
}
}
}
We can use this as following:
我们可以使用如下:
self.datePicker.setLimit(forCalendarComponent: .year, minimumUnit: 13, maximumUnit: 100)
#9
0
Another case :
另一个案例:
Suppose I want to show Date of birth as a Date picker, Dob is within the range of 1/1/1980 to 1/1/2000.
假设我想将出生日期显示为日期选择器,Dob在1/1/1980到1/1/2000的范围内。
@IBOutlet var datePicker: UIDatePicker!
override func viewDidLoad() {
super.viewDidLoad()
datePicker.datePickerMode = UIDatePickerMode.date
// 01/01/1980 to 01/01/2000
let calendar = Calendar.current
var minDateComponent = calendar.dateComponents([.day,.month,.year], from: Date())
minDateComponent.day = 01
minDateComponent.month = 01
minDateComponent.year = 1980
let minDate = calendar.date(from: minDateComponent)
print(" min date : \(minDate)")
var maxDateComponent = calendar.dateComponents([.day,.month,.year], from: Date())
maxDateComponent.day = 01
maxDateComponent.month = 01
maxDateComponent.year = 2000
let maxDate = calendar.date(from: maxDateComponent)
print("max date : \(maxDate)")
self.datePicker.minimumDate = minDate! as Date
self.datePicker.maximumDate = maxDate! as Date
}
#10
0
Swift 4.0
Swift 4.0
extension UIDatePicker { func set18YearValidation() { let currentDate: Date = Date() var calendar: Calendar = Calendar(identifier: Calendar.Identifier.gregorian) calendar.timeZone = TimeZone(identifier: "UTC")! var components: DateComponents = DateComponents() components.calendar = calendar components.year = -18 let maxDate: Date = calendar.date(byAdding: components, to: currentDate)! components.year = -150 let minDate: Date = calendar.date(byAdding: components, to: currentDate)! self.minimumDate = minDate self.maximumDate = maxDate } }
extension UIDatePicker {func set18YearValidation(){let currentDate:Date = Date()var calendar:Calendar = Calendar(identifier:Calendar.Identifier.gregorian)calendar.timeZone = TimeZone(identifier:“UTC”)! var components:DateComponents = DateComponents()components.calendar = calendar components.year = -18 let maxDate:Date = calendar.date(byAdding:components,to:currentDate)! components.year = -150 let minDate:Date = calendar.date(byAdding:components,to:currentDate)! self.minimumDate = minDate self.maximumDate = maxDate}}
#11
0
Look at this for Swift version. User negative value (-) to subtract and positive value to add date component.
看看这个Swift版本。用户负值( - )减去和正值添加日期组件。
1. Set minimum date
1.设置最短日期
yourDatePicker.minimumDate = Calendar.current.date(byAdding: .year, value: -1, to: Date())
yourDatePicker.minimumDate = Calendar.current.date(byAdding:.year,value:-1,to:Date())
2. Set maximum date
2.设置最大日期
yourDatePicker.maximumDate = Calendar.current.date(byAdding: .year, value: 1, to: Date())
yourDatePicker.maximumDate = Calendar.current.date(byAdding:。year,value:1,to:Date())
#1
58
Try this:
尝试这个:
NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDate *currentDate = [NSDate date];
NSDateComponents *comps = [[NSDateComponents alloc] init];
[comps setYear:-18];
NSDate *minDate = [gregorian dateByAddingComponents:comps toDate:currentDate options:0];
[comps setYear:-150];
NSDate *maxDate = [gregorian dateByAddingComponents:comps toDate:currentDate options:0];
[comps release];
self.datePicker.minimumDate = minDate;
self.datePicker.maximumDate = maxDate;
It may be easily translated to Swift:
它可以很容易地翻译成Swift:
let gregorian: NSCalendar = NSCalendar(calendarIdentifier: NSCalendarIdentifierGregorian)!
let currentDate: NSDate = NSDate()
let components: NSDateComponents = NSDateComponents()
components.year = -18
let minDate: NSDate = gregorian.dateByAddingComponents(components, toDate: currentDate, options: NSCalendarOptions(rawValue: 0))!
components.year = -150
let maxDate: NSDate = gregorian.dateByAddingComponents(components, toDate: currentDate, options: NSCalendarOptions(rawValue: 0))!
self.datePicker.minimumDate = minDate
self.datePicker.maximumDate = maxDate
#2
14
In Swift 2.1:
在Swift 2.1中:
let currentDate: NSDate = NSDate()
let calendar: NSCalendar = NSCalendar(calendarIdentifier: NSCalendarIdentifierGregorian)!
// let calendar: NSCalendar = NSCalendar.currentCalendar()
calendar.timeZone = NSTimeZone(name: "UTC")!
let components: NSDateComponents = NSDateComponents()
components.calendar = calendar
components.year = -18
let minDate: NSDate = calendar.dateByAddingComponents(components, toDate: currentDate, options: NSCalendarOptions(rawValue: 0))!
components.year = -150
let maxDate: NSDate = calendar.dateByAddingComponents(components, toDate: currentDate, options: NSCalendarOptions(rawValue: 0))!
self.dateOfBirthUIDatePicker.minimumDate = minDate
self.dateOfBirthUIDatePicker.maximumDate = maxDate
print("minDate: \(minDate)")
print("maxDate: \(maxDate)")
#3
12
This is how it would look like in 2017 (Swift 3)
这就是2017年的样子(Swift 3)
var components = DateComponents()
components.year = -100
let minDate = Calendar.current.date(byAdding: components, to: Date())
components.year = -18
let maxDate = Calendar.current.date(byAdding: components, to: Date())
datePicker.minimumDate = minDate
datePicker.maximumDate = maxDate
#4
10
Swift 4.1
extension UIDatePicker {
func set18YearValidation() {
let currentDate: Date = Date()
var calendar: Calendar = Calendar(identifier: Calendar.Identifier.gregorian)
calendar.timeZone = TimeZone(identifier: "UTC")!
var components: DateComponents = DateComponents()
components.calendar = calendar
components.year = -18
let maxDate: Date = calendar.date(byAdding: components, to: currentDate)!
components.year = -150
let minDate: Date = calendar.date(byAdding: components, to: currentDate)!
self.minimumDate = minDate
self.maximumDate = maxDate
} }
#5
6
Swift 3.0
Swift 3.0
let gregorian: NSCalendar = NSCalendar(calendarIdentifier: NSCalendar.Identifier.gregorian)!
let currentDate: Date = Date()
let components: NSDateComponents = NSDateComponents()
components.year = -150
let minDate: Date = gregorian.date(byAdding: components as DateComponents, to: currentDate, options: NSCalendar.Options(rawValue: 0))!
components.year = -16
let maxDate: Date = gregorian.date(byAdding: components as DateComponents, to: currentDate, options: NSCalendar.Options(rawValue: 0))!
self.datepicker.minimumDate = minDate
self.datepicker.maximumDate = maxDate
#6
2
In Objective C, NSDateComponents *comps = [[NSDateComponents alloc] init];
在Objective C中,NSDateComponents * comps = [[NSDateComponents alloc] init];
NSDateComponents *components = [calendar components:(NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay) fromDate:[NSDate date]];
NSInteger year = components.year;
NSInteger month = components.month;
NSInteger day = components.day;
NSInteger minimumYear = year - 1900;//Given some year here for example
NSInteger minimumMonth = month - 1;
NSInteger minimumDay = day - 1;
[comps setYear:-minimumYear];
[comps setMonth:-minimumMonth];
[comps setDay:-minimumDay];
NSDate *minDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
[datePicker setMinimumDate:minDate];
[datePicker setMaximumDate:[NSDate date]];
The minimum date would be January 01 1900. I hope it works for you all.. :)
最短的日期是1900年1月1日。我希望它对你们都有用.. :)
In Swift 2.0 or later
在Swift 2.0或更高版本中
let calendar = NSCalendar(calendarIdentifier:NSCalendarIdentifierGregorian);
let todayDate = NSDate()
let components = calendar?.components([NSCalendarUnit.Year,NSCalendarUnit.Month,NSCalendarUnit.Day], fromDate: todayDate)
let minimumYear = (components?.year)! - 1900
let minimumMonth = (components?.month)! - 1
let minimumDay = (components?.day)! - 1
let comps = NSDateComponents();
comps.year = -minimumYear
comps.month = -minimumMonth
comps.day = -minimumDay
let minDate = calendar?.dateByAddingComponents(comps, toDate: todayDate, options: NSCalendarOptions.init(rawValue: 0))
datePicker.minimumDate = minDate
datePicker.maximumDate = datePicker.date
#7
2
**Minimum and maximum date in UIDatePicker: #Swift
** UIDatePicker中的最短和最长日期:#Swift
**if you want to select the min and max date between two date value use below simple code: **
**如果您想在简单代码下面选择两个日期值之间的最小和最大日期:**
for Example : Min Date : 01-04-2017 and Max Date : 31-03-2018
例如:最小日期:01-04-2017和最大日期:31-03-2018
let calendar = Calendar.current
var minDateComponent = calendar.dateComponents([.day,.month,.year], from: Date())
minDateComponent.day = 01
minDateComponent.month = 04
minDateComponent.year = 2017
let minDate = calendar.date(from: minDateComponent)
print(" min date : \(String(describing: minDate))")
var maxDateComponent = calendar.dateComponents([.day,.month,.year], from: Date())
maxDateComponent.day = 0
maxDateComponent.month = 03 + 1
maxDateComponent.year = 2018
let maxDate = calendar.date(from: maxDateComponent)
print("max date : \(String(describing: maxDate))")
picker.minimumDate = minDate! as Date
picker.maximumDate = maxDate! as Date
#8
1
Swift 4.1
Swift 4.1
I have created my extension for all type of limit based on Calendar.Component
我已经基于Calendar.Component为所有类型的限制创建了我的扩展
extension UIDatePicker {
func setLimit(forCalendarComponent component:Calendar.Component, minimumUnit min: Int, maximumUnit max: Int) {
let currentDate: Date = Date()
var calendar: Calendar = Calendar(identifier: Calendar.Identifier.gregorian)
guard let timeZone = TimeZone(identifier: "UTC") else { return }
calendar.timeZone = timeZone
var components: DateComponents = DateComponents()
components.calendar = calendar
components.setValue(-min, for: component)
if let maxDate: Date = calendar.date(byAdding: components, to: currentDate) {
self.maximumDate = maxDate
}
components.setValue(-max, for: component)
if let minDate: Date = calendar.date(byAdding: components, to: currentDate) {
self.minimumDate = minDate
}
}
}
We can use this as following:
我们可以使用如下:
self.datePicker.setLimit(forCalendarComponent: .year, minimumUnit: 13, maximumUnit: 100)
#9
0
Another case :
另一个案例:
Suppose I want to show Date of birth as a Date picker, Dob is within the range of 1/1/1980 to 1/1/2000.
假设我想将出生日期显示为日期选择器,Dob在1/1/1980到1/1/2000的范围内。
@IBOutlet var datePicker: UIDatePicker!
override func viewDidLoad() {
super.viewDidLoad()
datePicker.datePickerMode = UIDatePickerMode.date
// 01/01/1980 to 01/01/2000
let calendar = Calendar.current
var minDateComponent = calendar.dateComponents([.day,.month,.year], from: Date())
minDateComponent.day = 01
minDateComponent.month = 01
minDateComponent.year = 1980
let minDate = calendar.date(from: minDateComponent)
print(" min date : \(minDate)")
var maxDateComponent = calendar.dateComponents([.day,.month,.year], from: Date())
maxDateComponent.day = 01
maxDateComponent.month = 01
maxDateComponent.year = 2000
let maxDate = calendar.date(from: maxDateComponent)
print("max date : \(maxDate)")
self.datePicker.minimumDate = minDate! as Date
self.datePicker.maximumDate = maxDate! as Date
}
#10
0
Swift 4.0
Swift 4.0
extension UIDatePicker { func set18YearValidation() { let currentDate: Date = Date() var calendar: Calendar = Calendar(identifier: Calendar.Identifier.gregorian) calendar.timeZone = TimeZone(identifier: "UTC")! var components: DateComponents = DateComponents() components.calendar = calendar components.year = -18 let maxDate: Date = calendar.date(byAdding: components, to: currentDate)! components.year = -150 let minDate: Date = calendar.date(byAdding: components, to: currentDate)! self.minimumDate = minDate self.maximumDate = maxDate } }
extension UIDatePicker {func set18YearValidation(){let currentDate:Date = Date()var calendar:Calendar = Calendar(identifier:Calendar.Identifier.gregorian)calendar.timeZone = TimeZone(identifier:“UTC”)! var components:DateComponents = DateComponents()components.calendar = calendar components.year = -18 let maxDate:Date = calendar.date(byAdding:components,to:currentDate)! components.year = -150 let minDate:Date = calendar.date(byAdding:components,to:currentDate)! self.minimumDate = minDate self.maximumDate = maxDate}}
#11
0
Look at this for Swift version. User negative value (-) to subtract and positive value to add date component.
看看这个Swift版本。用户负值( - )减去和正值添加日期组件。
1. Set minimum date
1.设置最短日期
yourDatePicker.minimumDate = Calendar.current.date(byAdding: .year, value: -1, to: Date())
yourDatePicker.minimumDate = Calendar.current.date(byAdding:.year,value:-1,to:Date())
2. Set maximum date
2.设置最大日期
yourDatePicker.maximumDate = Calendar.current.date(byAdding: .year, value: 1, to: Date())
yourDatePicker.maximumDate = Calendar.current.date(byAdding:。year,value:1,to:Date())