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:];

    [_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:];

    _priceLabel.textColor = [UIColor whiteColor];

    [self addSubview:_priceLabel];

    _oldPriceLabel = [[UILabel alloc] init];

    _oldPriceLabel.text = @"0.00";

    _oldPriceLabel.hidden = YES;

    _oldPriceLabel.font = [UIFont systemFontOfSize:];

    _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(, length)];

    [attri addAttribute:NSStrikethroughColorAttributeName value:[UIColor colorWithHexString:@"fbe47a"] range:NSMakeRange(, length)];

    [_oldPriceLabel setAttributedText:attri];

    _rightLabel = [[UILabel alloc] init];

    _rightLabel.font = [UIFont systemFontOfSize:];

    _rightLabel.textColor = [UIColor colorWithHexString:@""];

    [self addSubview:_rightLabel];

    _startLabel = [[UILabel alloc] init];

    _startLabel.font = [UIFont systemFontOfSize:];

    _startLabel.textColor = [UIColor colorWithHexString:@""];

    [self addSubview:_startLabel];

    _endLabel = [[UILabel alloc] init];

    _endLabel.font = [UIFont systemFontOfSize:];

    _endLabel.textColor = [UIColor colorWithHexString:@"b3b3b3"];

    [self addSubview:_endLabel];

    _hourLabel = [[UIButton alloc] init];

    _hourLabel.titleLabel.font  = [UIFont systemFontOfSize:];

    [_hourLabel setTitle:@"" 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:];

    [_minuteLabel setTitle:@"" 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:];

    [_secondLabel setTitle:@"" 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 = ;

    [_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();

        make.height.mas_equalTo();

    }];

    [_moneyLabel mas_makeConstraints:^(MASConstraintMaker *make) {

        make.width.mas_equalTo();

        make.height.mas_equalTo();

        make.left.equalTo(_saleButton.mas_right).offset(margin);

        make.centerY.equalTo(self.mas_centerY);

    }];

    CGFloat priceMargin = ;

    [_priceLabel mas_makeConstraints:^(MASConstraintMaker *make) {

        make.left.equalTo(_moneyLabel.mas_right).offset(priceMargin);

        make.centerY.equalTo(self.mas_centerY);

    }];

    CGFloat rigthMargin = ;

    [_rightLabel mas_makeConstraints:^(MASConstraintMaker *make) {

        make.right.equalTo(self.mas_right).offset(-rigthMargin);

        make.top.equalTo(self.mas_top).offset();

    }];

    [_startLabel mas_makeConstraints:^(MASConstraintMaker *make) {

        make.right.equalTo(self.mas_right).offset(-rigthMargin);

        make.top.equalTo(_rightLabel.mas_bottom).offset();

    }];

    [_endLabel mas_makeConstraints:^(MASConstraintMaker *make) {

        make.right.equalTo(self.mas_right).offset(-rigthMargin);

        make.centerY.equalTo(self.mas_centerY);

    }];

    CGFloat timeW = orientationItemW;

    CGFloat timeMargin =;

    CGFloat timeTopMargin = ;

    [_secondLabel mas_makeConstraints:^(MASConstraintMaker *make) {

        make.right.equalTo(self.mas_right).offset(-);

        make.top.equalTo(_rightLabel.mas_bottom).offset(timeTopMargin);

        make.width.mas_equalTo(timeW);

    }];

    [_pointRight mas_makeConstraints:^(MASConstraintMaker *make) {

        make.width.mas_equalTo();

        make.height.mas_equalTo();

        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();

        make.height.mas_equalTo();

        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(-);

        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:];

        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:];

    if (dateCom.day>) {

        return  NO;

    }else{

        if (dateCom.month>) {

            return NO;

        }else{

            if (dateCom.second>) {

                return NO;

            }else{

                if (dateCom.minute>) {

                    return NO;

                }else if (dateCom.second>){

                    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:];

        if (dateCom.day>) {

            [self setupOrientation12Out];

        }else{

            if (dateCom.month>) {

                [self setupOrientation12Out];

            }else{

                if (dateCom.hour>) { //12小时之外

                    [self setupOrientation12Out];

                }else if (dateCom.hour<= && dateCom.hour>){ //12小时之内

                    if (dateCom.hour==) {

                        if (dateCom.second>) {

                            [self setupOrientation12Out];

                        }else{

                            if (dateCom.minute>) {

                                [self setupOrientation12Out];

                            }else{

                                [self setupOrientation12In];

                            }

                        }

                    }else{

                        [self setupOrientation12In];

                    }

                }else{ //小于0 表示活动已经开始

                    if (dateCom.minute<= && dateCom.second<=) {

                        [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 = ;

    NSInteger minute = ;

    NSInteger second = ;

    if (cmps.hour<= || cmps.minute<= || cmps.second<=) {

        //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== && minute== && second==) {

            //掉用活动开始

            [self setupOrientationStart];

            [self.timer invalidate];

            self.timer = nil;

    }

    NSString *houreT = [NSString stringWithFormat:@"%02zd",hour>?hour:];

    NSString *minuteT = [NSString stringWithFormat:@"%02zd",minute>?minute:];

    NSString *secondT = [NSString stringWithFormat:@"%02zd",second>?second:];

    CGFloat houreW = [houreT boundingRectWithSize:CGSizeMake(MAXFLOAT, orientationItemW) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName : [UIFont systemFontOfSize:]} context:nil].size.width;

    if (houreW>=orientationItemW) {

        [_hourLabel mas_updateConstraints:^(MASConstraintMaker *make) {

            make.width.mas_equalTo(houreW+);

        }];

    }

    [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 = ;

    NSInteger minute = ;

    NSInteger second = ;

    if (cmps.hour<= || cmps.minute<= || cmps.second<=) {

        //判断开始时间和 当前时间的差值

        NSDateComponents *cmps = [createDate deltaFrom:nowDate];

        if (cmps.day>) {

            //设置十分秒 信息

            hour = cmps.hour+(cmps.day*);

        }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== && minute== && second==) {

        //掉用活动结束

        [self setupOrientationEnd];

        [self.timer1 invalidate];

        self.timer1 = nil;

    }

    NSString *houreT = [NSString stringWithFormat:@"%02zd",hour>?hour:];

    NSString *minuteT = [NSString stringWithFormat:@"%02zd",minute>?minute:];

    NSString *secondT = [NSString stringWithFormat:@"%02zd",second>?second:];

    CGFloat houreW = [houreT boundingRectWithSize:CGSizeMake(MAXFLOAT, orientationItemW) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName : [UIFont systemFontOfSize:]} context:nil].size.width;

    if (houreW>orientationItemW) {

        [_hourLabel mas_updateConstraints:^(MASConstraintMaker *make) {

            make.width.mas_equalTo(houreW+);

        }];

    }

    [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:];

    [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:];

        [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:];

}

- (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:];

    return cmps.year ==

    && cmps.month ==

    && cmps.day == ;

}

@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：

iOS 商品倒计时 限时特价 限时优惠 功能的封装的相关教程结束。