[iOS datePickerView] UIDatePickerView 的简单用法

  //设置datePickerView模式    _datePickerView.contentMode = UIDatePickerModeDate;    //设置显示默认当天    _datePickerView.calendar = [NSCalendar currentCalendar];       //设置 显示当前的时间     _timeTitleLab.text = [self formatterDate:[NSDate date]];    //设置监听事件    [_datePickerView addTarget:self action:@selector(changeValue:) forControlEvents:UIControlEventValueChanged];

//NSDate 转换 为 时间字符串-(NSString*)formatterDate:(NSDate*)date{    NSDateFormatter *dataFormatter = [[NSDateFormatter alloc] init];    [dataFormatter setDateFormat:@"yyyy-MM-dd"];    NSString *dateTime = [dataFormatter stringFromDate:date];    return dateTime;}//触及页面灰色部分,页面消失- (IBAction)hiddenBtn:(id)sender {}//回到今天 按钮- (IBAction)goBackToday:(id)sender {   [ _datePickerView setDate:todayDate animated:YES];    _timeTitleLab.text = [self formatterDate:todayDate];}//确认按钮- (IBAction)sureBtn:(id)sender {    NSLog(@"%@",_timeTitleLab.text);}- (void)changeValue:(UIDatePicker*)sender{       _timeTitleLab.text = [self formatterDate:[sender date]];}

补充一下
获取当前时间的方法 [NSDate date] 就这么简单““`