IOS 学习 日期选择器

(void)viewDidLoad {

[super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

UIDatePicker *dataPicker = [[UIDatePicker alloc] init];

[dataPicker setCenter:CGPointMake(self.view.frame.size.width * 0.5, self.view.frame.size.height * 0.5)];

[dataPicker setTag:1];

[self.view addSubview:dataPicker];

CGRect rect = CGRectMake(self.view.frame.size.width * 0.5, self.view.frame.size.height * 0.7, 100, 30);

UIButton *button = [[UIButton alloc] initWithFrame:rect];

[button setTitle:@”Select” forState:UIControlStateNormal];

[button setBackgroundColor:[UIColor purpleColor]];

[button addTarget:self action:@selector(getDate) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button];

}

-(void)getDate

{

UIDatePicker dataPicker = (UIDatePicker )[self.view viewWithTag:1];

NSDate *select = [dataPicker date];

NSDateFormatter *dataFormatter = [[NSDateFormatter alloc] init];

[dataFormatter setDateFormat:@”yyyy-MM-dd HH:mm”];

NSString *dateAndTime = [dataFormatter stringFromDate:select];

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@”Date” message:dateAndTime delegate:self cancelButtonTitle:@”OK” otherButtonTitles:nil, nil];

[alert show];

}