可修改文字颜色和限制最大日期的时间选择器使用示例

            PGDatePickManager *datePickManager = [[PGDatePickManager alloc]init];
            datePickManager.confirmButtonTextColor = BGColorHex(FF7648);
            datePickManager.cancelButtonTextColor = BGColorHex(CCCCC);
            datePickManager.headerViewBackgroundColor = BGColorHex(F0F0F0);
            datePickManager.isShadeBackground = true;
            PGDatePicker *datePicker = datePickManager.datePicker;
            datePicker.textColorOfSelectedRow = BGColorHex(FF7648);
            datePicker.lineBackgroundColor = BGColorHex(FF7648);
            datePicker.delegate = self;
            datePicker.datePickerType = PGDatePickerTypeVertical;
            datePicker.isHiddenMiddleText = false;
        //    datePicker.isCycleScroll = true;
            datePicker.datePickerMode = PGDatePickerModeDate;
            
            long long nowTime = (long long)([[NSDate date] timeIntervalSince1970]*1000+[[BITSingleObject sharedInstance] getZoneTimeDifference])+[BITSingleObject sharedInstance].localServerDifferenceTime-24*3600*1000-8*3600*1000;
            datePicker.maximumDate = [NSDate dateWithTimeIntervalSince1970:nowTime/1000];
            datePicker.originDate = [NSDate dateWithTimeIntervalSince1970:nowTime/1000];
            [self presentViewController:datePickManager animated:false completion:nil];

#pragma PGDatePickerDelegate
- (void)datePicker:(PGDatePicker *)datePicker didSelectDate:(NSDateComponents *)dateComponents {
    NSString *date_time = [NSString stringWithFormat:@"%d-%d-%d", dateComponents.year,dateComponents.month,dateComponents.day];
    // 日期格式化类
    NSDateFormatter *fmt = [[NSDateFormatter alloc] init];
    // 设置日期格式(为了转换成功)
    fmt.dateFormat = @"yyyy-MM-dd";
    // NSString * -> NSDate *
    NSDate *date = [fmt dateFromString:date_time];

    NSDateFormatter *dateFmt = [[NSDateFormatter alloc]init];
    dateFmt.dateFormat = @"yyyy-MM-dd";
    self.model.thirdHealthCareEntity.date_time = [dateFmt stringFromDate:date];
    NSLog(@"dateComponents = %@, self.model.thirdHealthCareEntity.date_time:%@", dateComponents, self.model.thirdHealthCareEntity.date_time);
    self.healthCareSelectTool.model = self.model.thirdHealthCareEntity;
    self.model.status = GBCommonStatusThird;
    self.model.page = 1;
    self.model.thirdHealthCareEntity.is_old = YES;
    [self excuteParent_health_listCommand];
}