iOS開發技巧 - 使用UIDatePicker來選擇日期和時間

標籤：

(Swift)

import UIKitclass ViewController: UIViewController {    var datePicker: UIDatePicker!        func datePickerDateChanged(datePicker: UIDatePicker) {        println("Selected date = \(datePicker.date)")    }        override func viewDidLoad() {        super.viewDidLoad()                datePicker = UIDatePicker()        datePicker.center = view.center        view.addSubview(datePicker)                datePicker.addTarget(self,            action: "datePickerDateChanged:",            forControlEvents: .ValueChanged)                    /*            set the minimum and the maximum dates that it can display        */                let oneYearTime:NSTimeInterval = 365 * 24 * 60 * 60        let todayDate = NSDate()        let oneYearFromToday = todayDate.dateByAddingTimeInterval(oneYearTime)        let twoYearsFromToday = todayDate.dateByAddingTimeInterval(2 * oneYearTime)        datePicker.minimumDate = oneYearFromToday        datePicker.maximumDate = twoYearsFromToday    }}

 

(Objective-C)

#import "ViewController.h"@interface ViewController ()@property (nonatomic, strong) UIDatePicker *myDatePicker;@end@implementation ViewController- (void) datePickerDateChanged:(UIDatePicker *)paramDatePicker {    if ([paramDatePicker isEqual:self.myDatePicker]) {        NSLog(@"Selected date = %@", paramDatePicker.date);    }}- (void)viewDidLoad {    [super viewDidLoad];        self.myDatePicker = [[UIDatePicker alloc] init];    self.myDatePicker.center = self.view.center;    [self.view addSubview:self.myDatePicker];        [self.myDatePicker addTarget:self        action:@selector(datePickerDateChanged:)        forControlEvents:UIControlEventValueChanged];            NSTimeInterval oneYearTime = 365 * 24 * 60 * 60;    NSDate *todayDate = [NSDate date];    NSDate *oneYearFromToday = [todayDate dateByAddingTimeInterval:oneYearTime];    NSDate *twoYearsFromToday = [todayDate dateByAddingTimeInterval:2 * oneYearTime];    self.myDatePicker.minimumDate = oneYearFromToday;    self.myDatePicker.maximumDate = twoYearsFromToday;}@end

 

iOS開發技巧 - 使用UIDatePicker來選擇日期和時間