iOS 商品倒计时 限时特价 限时优惠 功能的封装

最近项目中多个页面用到了 商品特价倒计时的功能  为了偷懒 于是自己封装了一个限时抢购 倒计时的view 代码实现如下：

定向价 限时特价 模型代码实现：

#pragma mark 商品定向价模型
@interface STGoodsOrientationPrice : STBaseModel

/**定向价**/
@property (nonatomic, copy) NSString *price;

/**定向价开始时间**/
@property (nonatomic, copy) NSString *started_at;

/***定向价结束时间*/
@property (nonatomic, copy) NSString *expired_at;

/**商品分润**/
@property (nonatomic, copy) NSString *rebate;

/***  特价提前曝光中需要的字段 推荐价*/
@property (nonatomic,copy)NSString *  promotion_price;

/** *特价提前曝光中需要的字段 原价*/
@property (nonatomic,copy)NSString *  origin_price;

/***  特价提前曝光需要的背景图片字段*/
@property (nonatomic,copy)NSString * image;

/***自定义属性 判断活动是否已经结束 在sku里面会用到*/
@property (nonatomic,assign,getter=isActivityEnd)BOOL activityEnd;

@end

@implementation STGoodsOrientationPrice

@end

限时特价 view实现代码

#import <UIKit/UIKit.h>
/**
 *  定向价格的view
*/

//定义活动进行中的回调
typedef void (^orientationPriceViewStartBlock)();

//定义活动结束的回调
typedef void (^orientationPriceViewEndBlock)();

@class STGoodsOrientationPrice; //定向价模型

@interface STOrientationPriceView : UIView

/**定向价模型**/
@property(nonatomic,strong)STGoodsOrientationPrice *orientation;

/**活动进行中的回调**/
@property(nonatomic,strong)orientationPriceViewStartBlock orientationPriceViewStart;

/**活动结束的回调**/
@property(nonatomic,strong)orientationPriceViewEndBlock orientationPriceViewEndBlock;

/***创建定时器*/
@property(nonatomic,strong)NSTimer *timer;

/***创建定时器*/
@property(nonatomic,strong)NSTimer *timer1;


/***是否需要右侧展示原价view*/
@property(nonatomic,assign)BOOL showOldPrice;


/**重新开启定时器**/
- (void)startTimer;

@end

#import "STOrientationPriceView.h"
#import "STGoodsOrientationPrice.h"
#import "NSDate+SY.h"

#define orientationItemW 18

@interface STOrientationPriceView()

/***  底色图*/
@property(nonatomic,strong)UIImageView *bgImageView;

/***  限时优惠label*/
@property(nonatomic,strong)UIButton *saleButton ;

/* *  价格的图 */
@property(nonatomic,strong)UIImageView *moneyLabel;

/** *  价格的label*/
@property(nonatomic,strong)UILabel *priceLabel;

/** *  原价label*/
@property(nonatomic,strong)UILabel *oldPriceLabel;

/** *  右侧时间提示label*/
@property(nonatomic,strong) UILabel*rightLabel;

/***  右侧时间提示label上面正式开始的label*/
@property(nonatomic,strong) UILabel*startLabel;

/***活动结束的label*/
@property(nonatomic,strong) UILabel*endLabel;

/*** 小时*/
@property(nonatomic,strong)UIButton *hourLabel;

/*** 点 左 */
@property(nonatomic,strong)UIImageView *pointLeft;

/*** 分钟*/
@property(nonatomic,strong)UIButton *minuteLabel;

/*** 点 右 */
@property(nonatomic,strong)UIImageView *pointRight;

/*** 秒*/
@property(nonatomic,strong)UIButton *secondLabel;


@end

@implementation STOrientationPriceView

#pragma mark lazy
- (NSTimer *)timer
{
    if (!_timer) {
        _timer = [NSTimer scheduledTimerWithTimeInterval:1.0f target:self selector:@selector(modifyDate) userInfo:nil repeats:YES];
        [[NSRunLoop currentRunLoop] addTimer:_timer forMode:NSRunLoopCommonModes];
    }
    return _timer;
}


#pragma mark lazy
- (NSTimer *)timer1
{
    if (!_timer1) {
        _timer1 = [NSTimer scheduledTimerWithTimeInterval:1.0f target:self selector:@selector(modifEndDate) userInfo:nil repeats:YES];
        [[NSRunLoop currentRunLoop] addTimer:_timer1 forMode:NSRunLoopCommonModes];
    }
    return _timer1;
}

#pragma mark /**重新开启定时器**/
- (void)startTimer
{
    [self setOrientation:_orientation];
}


- (instancetype)initWithFrame:(CGRect)frame
{
    if (self = [super initWithFrame:frame]) {
        [self setUpView];
    }
    
    return self;
}


#pragma mark init
- (void)awakeFromNib
{
    [super awakeFromNib];
    
    [self setUpView];
    
}

- (void)setUpView
{
    self.userInteractionEnabled = NO;
    
    _bgImageView = [[UIImageView alloc] init];
    [self addSubview:_bgImageView];
    
    _saleButton = [[UIButton alloc] init];
    _saleButton.titleLabel.font  = [UIFont systemFontOfSize:15];
    [_saleButton setTitle:@"限时优惠" forState:UIControlStateNormal];
    [self addSubview:_saleButton];
    
    _moneyLabel = [[UIImageView alloc] init];
    _moneyLabel.image = [UIImage imageNamed:@"goods_orientation_money"];
    [self addSubview:_moneyLabel];
    
    _priceLabel = [[UILabel alloc] init];
    _priceLabel.text = @"0.00";
    _priceLabel.font = [UIFont systemFontOfSize:29];
    _priceLabel.textColor = [UIColor whiteColor];
    [self addSubview:_priceLabel];
    
    
 
    _oldPriceLabel = [[UILabel alloc] init];
    _oldPriceLabel.text = @"0.00";
    _oldPriceLabel.hidden = YES;
    _oldPriceLabel.font = [UIFont systemFontOfSize:14];
    _oldPriceLabel.textColor = [UIColor colorWithHexString:@"fbe47a"];
    [self addSubview:_oldPriceLabel];
    NSString *oldPrice = @"¥ 12345";
    NSUInteger length = [oldPrice length];
    NSMutableAttributedString *attri = [[NSMutableAttributedString alloc] initWithString:oldPrice];
    [attri addAttribute:NSStrikethroughStyleAttributeName value:@(NSUnderlinePatternSolid | NSUnderlineStyleSingle) range:NSMakeRange(0, length)];
    [attri addAttribute:NSStrikethroughColorAttributeName value:[UIColor colorWithHexString:@"fbe47a"] range:NSMakeRange(0, length)];
    [_oldPriceLabel setAttributedText:attri];
    
    
    
    _rightLabel = [[UILabel alloc] init];
    _rightLabel.font = [UIFont systemFontOfSize:10];
    _rightLabel.textColor = [UIColor colorWithHexString:@"373737"];
    [self addSubview:_rightLabel];
    
    _startLabel = [[UILabel alloc] init];
    _startLabel.font = [UIFont systemFontOfSize:17];
    _startLabel.textColor = [UIColor colorWithHexString:@"373737"];
    [self addSubview:_startLabel];
    
    _endLabel = [[UILabel alloc] init];
    _endLabel.font = [UIFont systemFontOfSize:17];
    _endLabel.textColor = [UIColor colorWithHexString:@"b3b3b3"];
    [self addSubview:_endLabel];
    
    _hourLabel = [[UIButton alloc] init];
    _hourLabel.titleLabel.font  = [UIFont systemFontOfSize:11];
    [_hourLabel setTitle:@"00" forState:UIControlStateNormal];
    [_hourLabel setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [_hourLabel setBackgroundImage:[UIImage imageNamed:@"goods_orientation_blackRectangle"] forState:UIControlStateNormal];
    [self addSubview:_hourLabel];
    
    _pointLeft = [[UIImageView alloc] init];
    _pointLeft.image = [UIImage imageNamed:@"goods_orientation_point"];
    [self addSubview:_pointLeft];
    
    _minuteLabel = [[UIButton alloc] init];
    _minuteLabel.titleLabel.font =[UIFont systemFontOfSize:11];
    [_minuteLabel setTitle:@"00" forState:UIControlStateNormal];
    [_minuteLabel setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [_minuteLabel setBackgroundImage:[UIImage imageNamed:@"goods_orientation_blackRectangle"] forState:UIControlStateNormal];
    [self addSubview:_minuteLabel];
    
    _pointRight = [[UIImageView alloc] init];
    _pointRight.image = [UIImage imageNamed:@"goods_orientation_point"];
    [self addSubview:_pointRight];
    
    _secondLabel = [[UIButton alloc] init];
    _secondLabel.titleLabel.font =[UIFont systemFontOfSize:11];
    [_secondLabel setTitle:@"00" forState:UIControlStateNormal];
    [_secondLabel setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [_secondLabel setBackgroundImage:[UIImage imageNamed:@"goods_orientation_blackRectangle"] forState:UIControlStateNormal];
    [self addSubview:_secondLabel];
    
    
    [self hideTime];
    
    //布局
    [self layout];
}

#pragma mark layout
- (void)layout
{
    
    CGFloat margin = 10;
    
    [_bgImageView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.width.equalTo(self.mas_width);
        make.height.equalTo(self.mas_height);
        make.left.equalTo(self.mas_left);
        make.top.equalTo(self.mas_top);
    }];
    
    [_saleButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.mas_left).offset(margin);
        make.centerY.equalTo(self.mas_centerY);
        make.width.mas_equalTo(86);
        make.height.mas_equalTo(24);
    }];
    
    [_moneyLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.width.mas_equalTo(11);
        make.height.mas_equalTo(15);
        make.left.equalTo(_saleButton.mas_right).offset(margin);
        make.centerY.equalTo(self.mas_centerY);
    }];
    
    CGFloat priceMargin = 3;
    [_priceLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(_moneyLabel.mas_right).offset(priceMargin);
        make.centerY.equalTo(self.mas_centerY);
    }];
    
    
    CGFloat rigthMargin = 16;
    [_rightLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.right.equalTo(self.mas_right).offset(-rigthMargin);
        make.top.equalTo(self.mas_top).offset(6);
        
    }];
    
    
    [_startLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.right.equalTo(self.mas_right).offset(-rigthMargin);
        make.top.equalTo(_rightLabel.mas_bottom).offset(5);
    }];
    
    [_endLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        
        make.right.equalTo(self.mas_right).offset(-rigthMargin);
        make.centerY.equalTo(self.mas_centerY);
    }];
    
    CGFloat timeW = orientationItemW;
    CGFloat timeMargin =5;
    CGFloat timeTopMargin = 5;
    [_secondLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.right.equalTo(self.mas_right).offset(-16);
        make.top.equalTo(_rightLabel.mas_bottom).offset(timeTopMargin);
        make.width.mas_equalTo(timeW);
    }];
    
    [_pointRight mas_makeConstraints:^(MASConstraintMaker *make) {
        make.width.mas_equalTo(2);
        make.height.mas_equalTo(8);
        make.right.equalTo(_secondLabel.mas_left).offset(-timeMargin);
        make.centerY.equalTo(_secondLabel.mas_centerY);
    }];
    
    
    [_minuteLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.right.equalTo(_pointRight.mas_left).offset(-timeMargin);
        make.top.equalTo(_rightLabel.mas_bottom).offset(timeTopMargin);
        make.width.mas_equalTo(timeW);
    }];
    
    
    [_pointLeft mas_makeConstraints:^(MASConstraintMaker *make) {
        make.width.mas_equalTo(2);
        make.height.mas_equalTo(8);
        make.right.equalTo(_minuteLabel.mas_left).offset(-timeMargin);
        make.centerY.equalTo(_minuteLabel.mas_centerY);
    }];
    
    
    [_hourLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.right.equalTo(_pointLeft.mas_left).offset(-timeMargin);
        make.top.equalTo(_rightLabel.mas_bottom).offset(timeTopMargin);
        make.width.mas_equalTo(timeW);
    }];
    
    
    [_oldPriceLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.right.equalTo(_hourLabel.mas_left).offset(-12);
        make.centerY.equalTo(self.mas_centerY);
    }];
    
}

#pragma mark 是否需要展示原价 显示原价 说明是首页的卡片cell
- (void)setShowOldPrice:(BOOL)showOldPrice
{
    
    _showOldPrice = showOldPrice;
    
    if (showOldPrice) {
        
        self.priceLabel.font = [UIFont boldSystemFontOfSize:15];
        
        if (IS_IPHONE_4_OR_LESS || IS_IPHONE_5) {
            self.oldPriceLabel.hidden = YES;
        }else{
            self.oldPriceLabel.hidden = NO;
        }
        
        [_saleButton setTitle:@"特价预告" forState:UIControlStateNormal];
        
    }else{
        
        self.oldPriceLabel.hidden = YES;
        [_saleButton setTitle:@"限时优惠" forState:UIControlStateNormal];

    }
}

#pragma mark 设置数据 在这里判断当前定向价展示的状态
- (void)setOrientation:(STGoodsOrientationPrice *)orientation
{
    _orientation = orientation;

    _priceLabel.text = orientation.price?orientation.price:@"0.00";
    
    _rightLabel.text = orientation.started_at;
    
    //判断活动是否已经结束
    if ([self validEndDate]) {
        
        //活动结束
        [self setupOrientationEnd];
        
        //活动已经结束
        self.orientation.activityEnd = YES;
        
        return;
    }

    //判断活动开始时间
    [self validStartate];
  
}

#pragma mark 判断活动结束时间
- (BOOL)validEndDate
{
    // 日期格式化类
    NSDateFormatter *fmt = [[NSDateFormatter alloc] init];
    // 设置日期格式(y:年,M:月,d:日,H:时,m:分,s:秒)
    fmt.dateFormat = @"yyyy-MM-dd HH:mm:ss";
    
    // 活动结束时间
    NSDate *create = [fmt dateFromString:_orientation.expired_at];
    
    NSTimeZone *zone = [NSTimeZone systemTimeZone]; //获得系统的时区
    
    NSTimeInterval time = [zone secondsFromGMTForDate:create];//以秒为单位返回当前时间与系统格林尼治时间的差
    
    NSDate *createDate =  [create dateByAddingTimeInterval:time];//然后把差的时间加上,就是当前系统准确的时间
    
    // 截止时间data格式
    NSDate *expireDate = [fmt dateFromString:[fmt stringFromDate:createDate]];
    // 当前时间data格式
    NSDate *nowDate = [fmt dateFromString:[fmt stringFromDate:[self getCurrentDate]]];
    // 当前日历
    NSCalendar *calendar = [NSCalendar currentCalendar];
    // 需要对比的时间数据
    NSCalendarUnit unit = NSCalendarUnitYear | NSCalendarUnitMonth
    | NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond;
    // 对比时间差
    NSDateComponents *dateCom = [calendar components:unit fromDate:nowDate toDate:expireDate options:0];
    
    if (dateCom.day>1) {
        
        return  NO;
        
    }else{
        
        if (dateCom.month>1) {
            
            return NO;
        
        }else{
           
            if (dateCom.second>0) {
                return NO;
            }else{
                
                if (dateCom.minute>0) {
                    
                    return NO;
               
                }else if (dateCom.second>0){
                    
                    return NO;
                }
                
                return YES;
            }

            
        }
        
    }

    return NO;

}





#pragma mark 判断活动开始时间差距
- (void)validStartate
{
    // 日期格式化类
    NSDateFormatter *fmt = [[NSDateFormatter alloc] init];
    fmt.dateFormat = @"yyyy-MM-dd HH:mm:ss";
    
    // 活动开始时间
    NSDate *create = [fmt dateFromString:_orientation.started_at];
    
    NSTimeZone *zone = [NSTimeZone systemTimeZone]; //获得系统的时区
    
    NSTimeInterval time = [zone secondsFromGMTForDate:create];//以秒为单位返回当前时间与系统格林尼治时间的差
    
    NSDate *createDate =  [create dateByAddingTimeInterval:time];//然后把差的时间加上,就是当前系统准确的时间
    
    
    //获取当前时间
    NSDate *nowDate = [fmt dateFromString:[fmt stringFromDate:[self getCurrentDate]]];
    
    // 当前日历
    NSCalendar *calendar = [NSCalendar currentCalendar];

    if (createDate.isThisYear) { // 今年
        
        
        // 需要对比的时间数据
        NSCalendarUnit unit = NSCalendarUnitYear | NSCalendarUnitMonth
        | NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond;
        // 对比时间差
        NSDateComponents *dateCom = [calendar components:unit fromDate:nowDate toDate:createDate options:0];
        
        
        if (dateCom.day>0) {
            
            [self setupOrientation12Out];

        }else{
            
            if (dateCom.month>0) {
                
                [self setupOrientation12Out];

            }else{
                
        
                
                if (dateCom.hour>12) { //12小时之外
                    
                    [self setupOrientation12Out];
                    
                }else if (dateCom.hour<=12 && dateCom.hour>0){ //12小时之内
                    
                    if (dateCom.hour==12) {
                        
                        if (dateCom.second>0) {
                            [self setupOrientation12Out];

                        }else{
                        
                            if (dateCom.minute>0) {
                                [self setupOrientation12Out];
                            }else{
                              
                                [self setupOrientation12In];
                            }
                        }
                        
                    }else{
                        
                        [self setupOrientation12In];

                        
                    }
                    
                    
                }else{ //小于0 表示活动已经开始
                    
                    if (dateCom.minute<=0 && dateCom.second<=0) {
                        
                        [self setupActiveStart];
                        
                    }else{
                        [self setupOrientation12In];
                    }
                    
                }

                
                
            }
            
        }
    
    }else{
        
        [self setupOrientation12Out];
        
    }
    
    
}


#pragma mark 设置活动开始信息
- (void)setupActiveStart
{
    //设置不能添加到购物车
    weakifySelf
    if(self.orientationPriceViewStart){
        weakSelf.orientationPriceViewStart();
    }
    [self setupOrientationStart];
}



- (void)dealloc
{
    [self.timer invalidate];
    self.timer  = nil;
}


#pragma mark 设置12小时内开购的信息
- (void)setupOrientation12In
{
    _endLabel.hidden = YES;

    
    if (self.showOldPrice) {
        
        _bgImageView.image = [UIImage imageNamed:@"homeRrientationGreenbg"];
        
    }else{
        
        _bgImageView.image = [UIImage imageNamed:@"goods_orientation_greenbg"];

    }
    _rightLabel.text = @"距离开始仅剩";
    [_saleButton setTitleColor:[UIColor colorWithHexString:@"76a505"] forState:UIControlStateNormal];
    [_saleButton setBackgroundImage:[UIImage imageNamed:@"goods_orientation_yellowRectang"] forState:UIControlStateNormal];
    
    [self showTime];
    
 
    //开启定时器
    [self.timer fire];


}

#pragma mark 获取当前的准确时间
- (NSDate*)getCurrentDate
{
    NSDate *date = [NSDate date]; //获得时间对象
    
    NSTimeZone *zone = [NSTimeZone systemTimeZone]; //获得系统的时区
    
    NSTimeInterval time = [zone secondsFromGMTForDate:date];//以秒为单位返回当前时间与系统格林尼治时间的差
    
    return [date dateByAddingTimeInterval:time];//然后把差的时间加上,就是当前系统准确的时间
}


#pragma mark 修改日期 每一秒掉用一次  修改开始时间
- (void)modifyDate
{
    
    // 日期格式化类
    NSDateFormatter *fmt = [[NSDateFormatter alloc] init];
    // 设置日期格式(y:年,M:月,d:日,H:时,m:分,s:秒)
    fmt.dateFormat = @"yyyy-MM-dd HH:mm:ss";
    
    
    // 活动开始时间
    NSDate *create = [fmt dateFromString:_orientation.started_at];
    
    NSTimeZone *zone = [NSTimeZone systemTimeZone]; //获得系统的时区
    
    NSTimeInterval time = [zone secondsFromGMTForDate:create];//以秒为单位返回当前时间与系统格林尼治时间的差
    
    NSDate *createDate =  [create dateByAddingTimeInterval:time];//然后把差的时间加上,就是当前系统准确的时间
    
    //获取当前时间
    NSDate *nowDate = [self getCurrentDate];
    
    //判断开始时间和 当前时间的差值
    NSDateComponents *cmps = [nowDate deltaFrom:createDate];
    
    //设置十分秒 信息
    NSInteger hour = 0;
    NSInteger minute = 0;
    NSInteger second = 0;
    
    if (cmps.hour<=0 || cmps.minute<=0 || cmps.second<=0) {
        
        
        //判断开始时间和 当前时间的差值
        NSDateComponents *cmps = [createDate deltaFrom:nowDate];
        
        
        //设置十分秒 信息
        hour = cmps.hour;
        minute = cmps.minute;
        second = cmps.second;
        
    }else{
        
        
        //设置十分秒 信息
        hour = cmps.hour;
        minute = cmps.minute;
        second = cmps.second;
        
    }
 
    
    
    if (hour==0 && minute==0 && second==0) {
        
            //掉用活动开始
            [self setupOrientationStart];
        
            [self.timer invalidate];
            self.timer = nil;
        
    }

    
    NSString *houreT = [NSString stringWithFormat:@"%02zd",hour>0?hour:0];
    NSString *minuteT = [NSString stringWithFormat:@"%02zd",minute>0?minute:0];
    NSString *secondT = [NSString stringWithFormat:@"%02zd",second>0?second:0];

    CGFloat houreW = [houreT boundingRectWithSize:CGSizeMake(MAXFLOAT, orientationItemW) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName : [UIFont systemFontOfSize:11]} context:nil].size.width;
    
    if (houreW>=orientationItemW) {
        [_hourLabel mas_updateConstraints:^(MASConstraintMaker *make) {
            make.width.mas_equalTo(houreW+5);
        }];
    }
    
  
    
    [self.hourLabel setTitle:houreT forState:UIControlStateNormal];
    [self.minuteLabel setTitle:minuteT forState:UIControlStateNormal];
    [self.secondLabel setTitle:secondT forState:UIControlStateNormal];
    
}


#pragma mark 修改日期 每一秒掉用一次 修改结束时间
- (void)modifEndDate
{
    
    // 日期格式化类
    NSDateFormatter *fmt = [[NSDateFormatter alloc] init];
    // 设置日期格式(y:年,M:月,d:日,H:时,m:分,s:秒)
    fmt.dateFormat = @"yyyy-MM-dd HH:mm:ss";
    
    
    // 活动开始时间
    NSDate *create = [fmt dateFromString:_orientation.expired_at];
    
    NSTimeZone *zone = [NSTimeZone systemTimeZone]; //获得系统的时区
    
    NSTimeInterval time = [zone secondsFromGMTForDate:create];//以秒为单位返回当前时间与系统格林尼治时间的差
    
    NSDate *createDate =  [create dateByAddingTimeInterval:time];//然后把差的时间加上,就是当前系统准确的时间
    
    //获取当前时间
    NSDate *nowDate = [self getCurrentDate];
    
    //判断开始时间和 当前时间的差值
    NSDateComponents *cmps = [nowDate deltaFrom:createDate];
    
    //设置十分秒 信息
    NSInteger hour = 0;
    NSInteger minute = 0;
    NSInteger second = 0;
    
    if (cmps.hour<=0 || cmps.minute<=0 || cmps.second<=0) {
        
        
        //判断开始时间和 当前时间的差值
        NSDateComponents *cmps = [createDate deltaFrom:nowDate];
        
        
        if (cmps.day>0) {
            
            //设置十分秒 信息
            hour = cmps.hour+(cmps.day*24);
            
        }else{
            //设置十分秒 信息
            hour = cmps.hour;
        }
       
        minute = cmps.minute;
        second = cmps.second;
        
    }else{
        
        
        //设置十分秒 信息
        hour = cmps.hour;
        minute = cmps.minute;
        second = cmps.second;
        
    }
    
    
    
    if (hour==0 && minute==0 && second==0) {
        
        //掉用活动结束
        [self setupOrientationEnd];
        
        [self.timer1 invalidate];
        self.timer1 = nil;
        
    }
    
    
    NSString *houreT = [NSString stringWithFormat:@"%02zd",hour>0?hour:0];
    NSString *minuteT = [NSString stringWithFormat:@"%02zd",minute>0?minute:0];
    NSString *secondT = [NSString stringWithFormat:@"%02zd",second>0?second:0];
    
    CGFloat houreW = [houreT boundingRectWithSize:CGSizeMake(MAXFLOAT, orientationItemW) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName : [UIFont systemFontOfSize:11]} context:nil].size.width;
    
    if (houreW>orientationItemW) {
        [_hourLabel mas_updateConstraints:^(MASConstraintMaker *make) {
            make.width.mas_equalTo(houreW+10);
        }];
    }
    
    [self.hourLabel setTitle:houreT forState:UIControlStateNormal];
    [self.minuteLabel setTitle:minuteT forState:UIControlStateNormal];
    [self.secondLabel setTitle:secondT forState:UIControlStateNormal];
    
}



#pragma mark 设置12小时外开购的信息
- (void)setupOrientation12Out
{
    if (self.showOldPrice) {
        
        _bgImageView.image = [UIImage imageNamed:@"homeRrientationGreenbg"];
        
    }else{
        
        _bgImageView.image = [UIImage imageNamed:@"goods_orientation_greenbg"];
        
    }
    [_saleButton setTitleColor:[UIColor colorWithHexString:@"76a505"] forState:UIControlStateNormal];
    [_saleButton setBackgroundImage:[UIImage imageNamed:@"goods_orientation_yellowRectang"] forState:UIControlStateNormal];
    
    [self hideTime];
    
    _endLabel.hidden = YES;
    _rightLabel.hidden = NO;
    _rightLabel.text =[self formatterStartTime];
    _startLabel.text = @"正式开始";
  
}

#pragma mark 格式化开始时间字符串
- (NSString*)formatterStartTime
{
    
    // 日期格式化类
    NSDateFormatter *fmt = [[NSDateFormatter alloc] init];
    // 设置日期格式(y:年,M:月,d:日,H:时,m:分,s:秒)
    fmt.dateFormat = @"yyyy-MM-dd HH:mm:ss";
    
    NSTimeZone* GTMzone = [NSTimeZone timeZoneForSecondsFromGMT:0];
    [fmt setTimeZone:GTMzone];
    
    // 活动开始时间
    NSDate *create = [fmt dateFromString:_orientation.started_at];
    
    if (create.isThisYear) { // 今年
        
        // 日期格式化类
        NSDateFormatter *fmt = [[NSDateFormatter alloc] init];
        // 设置日期格式(y:年,M:月,d:日,H:时,m:分,s:秒)
        fmt.dateFormat = @"MM-dd HH:mm:ss";
        
        NSTimeZone* GTMzone = [NSTimeZone timeZoneForSecondsFromGMT:0];
        [fmt setTimeZone:GTMzone];
        
        return [fmt stringFromDate:create];
        
    }else{
        
        return _orientation.started_at;
    }

    
    
}


#pragma mark 设置1活动开始的信息
- (void)setupOrientationStart
{
    _endLabel.hidden = YES;

    [self showTime];
    
    
    if (self.showOldPrice) {
        
        _bgImageView.image = [UIImage imageNamed:@"homeRrientationRedbg"];
        
    }else{
        
        _bgImageView.image = [UIImage imageNamed:@"goods_orientation_redbg"];
        
    }
    
    [_saleButton setTitleColor:[UIColor colorWithHexString:@"e72646"] forState:UIControlStateNormal];
    [_saleButton setBackgroundImage:[UIImage imageNamed:@"goods_orientation_yellowRectang"] forState:UIControlStateNormal];
    
    _rightLabel.text = @"距离结束仅剩";
    
    //掉用定时器
    [self.timer1 fire];
}

#pragma mark 设置1活动结束的信息
- (void)setupOrientationEnd
{
    
    //设置可以添加到购物车
    weakifySelf
    if(self.orientationPriceViewEndBlock){
        weakSelf.orientationPriceViewEndBlock();
    }
    
    
    _bgImageView.image = [UIImage imageNamed:@"goods_orientation_graybg"];
    [_saleButton setTitleColor:[UIColor colorWithHexString:@"b3b3b3"] forState:UIControlStateNormal];
    [_saleButton setBackgroundImage:[UIImage imageNamed:@"goods_orientation_grayRectang"] forState:UIControlStateNormal];
    _endLabel.text = @"活动已结束";
    
    _rightLabel.hidden = YES;
    _startLabel.hidden = YES;
    
    [self hideTime];
    
    _endLabel.hidden = NO;
 
}

#pragma mark 显示时间控件
- (void)showTime
{
    _rightLabel.hidden = NO;
    _hourLabel.hidden = NO;
    _pointLeft.hidden = NO;
    _pointRight.hidden = NO;
    _minuteLabel.hidden = NO;
    _secondLabel.hidden = NO;
}

#pragma mark 隐藏时间控件
- (void)hideTime
{
    _rightLabel.hidden = YES;
    _hourLabel.hidden = YES;
    _pointLeft.hidden = YES;
    _pointRight.hidden = YES;
    _minuteLabel.hidden = YES;
    _secondLabel.hidden = YES;
}

@end

NSDate+SY 分类代码实现如下：

#import <Foundation/Foundation.h>

@interface NSDate (SY)

/**
 * 获取当前区域的当前时间
 */
+ (NSDate *)getCurrentDate;


/**
 * 比较from和self的时间差值
 */
- (NSDateComponents *)deltaFrom:(NSDate *)from;

/**
 * 是否为今年
 */
- (BOOL)isThisYear;

/**
 * 是否为今天
 */
- (BOOL)isToday;

/**
 * 是否为昨天
 */
- (BOOL)isYesterday;

@end

#import "NSDate+SY.h"

@implementation NSDate (SY)

/**
 * 获取当前区域的当前时间
 */
+ (NSDate *)getCurrentDate
{
    NSDate *date = [NSDate date]; //获得时间对象
    
    NSTimeZone *zone = [NSTimeZone systemTimeZone]; //获得系统的时区
    
    NSTimeInterval time = [zone secondsFromGMTForDate:date];//以秒为单位返回当前时间与系统格林尼治时间的差
    
    return [date dateByAddingTimeInterval:time];//然后把差的时间加上,就是当前系统准确的时间
}





- (NSDateComponents *)deltaFrom:(NSDate *)from
{
    // 日历
    NSCalendar *calendar = [NSCalendar currentCalendar];
    
    // 比较时间
    NSCalendarUnit unit = NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond;
    
    return [calendar components:unit fromDate:from toDate:self options:0];
}

- (BOOL)isThisYear
{
    // 日历
    NSCalendar *calendar = [NSCalendar currentCalendar];
    
    NSInteger nowYear = [calendar component:NSCalendarUnitYear fromDate:[NSDate date]];
    NSInteger selfYear = [calendar component:NSCalendarUnitYear fromDate:self];
    
    return nowYear == selfYear;
}


- (BOOL)isToday
{
    NSDateFormatter *fmt = [[NSDateFormatter alloc] init];
    fmt.dateFormat = @"yyyy-MM-dd";
    
    NSString *nowString = [fmt stringFromDate:[NSDate date]];
    NSString *selfString = [fmt stringFromDate:self];
    
    return [nowString isEqualToString:selfString];
}

- (BOOL)isYesterday
{
    // 日期格式化类
    NSDateFormatter *fmt = [[NSDateFormatter alloc] init];
    fmt.dateFormat = @"yyyy-MM-dd";
    
    NSDate *nowDate = [fmt dateFromString:[fmt stringFromDate:[NSDate date]]];
    NSDate *selfDate = [fmt dateFromString:[fmt stringFromDate:self]];
    
    NSCalendar *calendar = [NSCalendar currentCalendar];
    NSDateComponents *cmps = [calendar components:NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear fromDate:selfDate toDate:nowDate options:0];
    
    return cmps.year == 0
    && cmps.month == 0
    && cmps.day == 1;
}


@end

到这里限时特价的一个自定义view就封装好了  我这里集成到项目中的 效果图如下：