UIDatePicker

一时失言乱红尘 2022-08-01 06:21 154阅读 0赞

//
    //  UIDatePickerViewController.m
    //  AppUI组件学习
    //
    //  Created by 麦子 on 15/6/18.
    //  Copyright (c) 2015年 麦子. All rights reserved.
    //
    
    #import "UIDatePickerViewController.h"
    
    @interface UIDatePickerViewController (){
        
        UILabel  *label;
    }
    
    @end
    
    @implementation UIDatePickerViewController
    
    - (void)viewDidLoad {
        [super viewDidLoad];
        self.view.backgroundColor = [UIColor blackColor];
        [self createView:self.view];
    }
    
    - (void)createView:(id)uiView{
        UIView *view = (UIView *)uiView;
        UIDatePicker *dataPicker = [[UIDatePicker alloc] init];
        dataPicker.frame = CGRectMake(20, 80, 300, 100);
        dataPicker.backgroundColor = [UIColor whiteColor];
        // data 改变时间
        [dataPicker addTarget:self action:@selector(dataChangeVal:) forControlEvents:UIControlEventValueChanged];
        
        //获取当前时间
        NSDate *time = [NSDate date];
        [dataPicker setDate:time animated:true];
        
        // 日期函数
        NSCalendar *cal = [NSCalendar currentCalendar];
        NSDateComponents *components = [cal components:NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay|
                                        NSCalendarUnitHour|
                                        NSCalendarUnitMinute|NSCalendarUnitSecond fromDate:time];
        
        NSLog(@"date/time is %ld-%ld-%ld  %ld:%ld:%ld",components.year,components.month,components.day,components.hour,components.minute,components.second);
        
        NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
        [formatter setDateFormat:@"yyyy-mm-dd"];
        [formatter setDateFormat:@"yyyy年mm月dd日"];
        NSString *nowTime = [formatter stringFromDate:time];    
        NSLog(@"当前时间%@",nowTime);
        
        
        
        
        label = [[UILabel alloc] init];
        label.frame = CGRectMake(20, 380, 300, 100);
        label.text = @"显示获取时间";
        label.backgroundColor = [UIColor whiteColor];
        
        [view addSubview:label];
        [view addSubview:dataPicker];
        
    }
    
    - (void)dataChangeVal:(UIDatePicker *)dataPicker{
        // 获取当前时间
        NSDate *currDate = dataPicker.date;
        // 格式化处理时间
        NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
        [formatter setDateStyle:NSDateFormatterShortStyle];
        [formatter setTimeStyle:NSDateFormatterShortStyle];
        NSString *time = [formatter stringFromDate:currDate];
        label.text = [NSString stringWithFormat:@"设置的时间%@",time];
        
    }
    
    
    @end