iOS 商品倒计时限时特价限时优惠功能的封装

时间：2016-09-13 00:12:41 阅读：241 评论：0 收藏：0 [点我收藏+]

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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：

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iOS 商品倒计时限时特价限时优惠功能的封装

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原文地址：http://www.cnblogs.com/syios/p/5866772.html

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iOS 商品倒计时 限时特价 限时优惠 功能的封装

iOS 商品倒计时限时特价限时优惠功能的封装