时间戳与时间互转函数

swift版

//MARK: -时间戳转时间函数
func timeStampToString(timeStamp: Double, outputFormatter: String)->String {
   //时间戳为毫秒级要／1000 (13位数)， 秒就不用除1000（10位数），参数带没带000
    let timeString = String.init(format: "%d", timeStamp)

    let timeSta:TimeInterval

    if timeString.count == 10 {
        timeSta = TimeInterval(timeStamp)
    }else{
        timeSta = TimeInterval(timeStamp / 1000)
    }

    let date = NSDate(timeIntervalSince1970: timeSta)
    let dfmatter = DateFormatter()
    //设定时间格式,这里可以设置成自己需要的格式yyyy-MM-dd HH:mm:ss
    dfmatter.dateFormat = outputFormatter
    return dfmatter.string(from: date as Date)
}

//MARK: -时间转时间戳函数
func timeToTimeStamp(time: String ,inputFormatter:String) -> Double {
    let dfmatter = DateFormatter()
   //设定时间格式,这里可以设置成自己需要的格式
    dfmatter.dateFormat = inputFormatter
    let last = dfmatter.date(from: time)
    let timeStamp = last?.timeIntervalSince1970
    return timeStamp!
}

OC 版

/**
 时间戳转时间
 @param timeStamp 时间戳
 @return 时间字符串
 */
+ (NSString *)timeStampTransToTime:(NSString *)timeStamp outputFormatter:(NSString *)outputFormatter
{
    NSTimeInterval time;
    if (timeStamp.length == 10) {//如果后台返回10位不除以1000,返回13位需要除以1000
        time=[timeStamp doubleValue];
    }else{
        time=[timeStamp doubleValue]/1000;
    }
    NSDate *detaildate=[NSDate dateWithTimeIntervalSince1970:time];

    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setTimeZone:[NSTimeZone localTimeZone]];//设置本地时区
    //设定时间格式,这里可以设置成自己需要的格式
    [dateFormatter setDateFormat:outputFormatter];

    NSString *currentDateStr = [dateFormatter stringFromDate: detaildate];

    return currentDateStr;
}

/**
 时间转时间戳
 @param time 时间
 @return 时间戳
 */
+(NSString *)timeTransTotimeStamp:(NSString *)time inputFormatter:(NSString *)inputFormatter
{
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setTimeZone:[NSTimeZone localTimeZone]]; //设置本地时区
    [dateFormatter setDateFormat:inputFormatter];
    NSDate *date = [dateFormatter dateFromString:time];
    NSString *timeSp = [NSString stringWithFormat:@"%ld", (long)[date timeIntervalSince1970]];//时间戳
    return timeSp;
}

根据时间戳转化为刚刚，几分钟前

//OC
+(NSString *)handleDate:(NSString *)time_shijianchou{
    NSMutableString *str;

    NSDate *date=[NSDate date];

    NSTimeInterval st=date.timeIntervalSince1970;

    //    NSDate *newDate=[NSDate dateWithTimeIntervalSince1970:st];

    NSTimeInterval result=st-[time_shijianchou doubleValue];

    if (result<60) {
        str=[NSMutableString stringWithFormat:@"刚刚"];
    }
    else if (result>=60&&result<3600) {
        str=[NSMutableString stringWithFormat:@"%d分钟前",(int)result/60];
    }
    else if (result>=3600&&result<60*60*24) {
        str=[NSMutableString stringWithFormat:@"%d小时前",(int)result/(60*60)];
    }
    else if (result>=60*60*24&&result<60*60*24*30) {
        str=[NSMutableString stringWithFormat:@"%d天前",(int)result/(60*60*24)];
    }
    else if(result>=60*60*24*30&&result<60*60*24*30*12){
       str=[NSMutableString stringWithFormat:@"%d个月",(int)result/(60*60*24*30)];
    }else{
        NSDate *resultDate=[NSDate dateWithTimeIntervalSince1970:st];
        NSDateFormatter *df=[NSDateFormatter new];
        [df setDateFormat:@"YYY年"];
        str=[NSMutableString stringWithFormat:@"%@",[df stringFromDate:resultDate]];
    }

    return str;
}

// swift
//MARK: -根据后台时间戳返回几分钟前，几小时前，几天前
func updateTimeToCurrennTime(timeStamp: Double) -> String {
    //获取当前的时间戳
    let currentTime = Date().timeIntervalSince1970
    //时间戳为毫秒级要 ／ 1000， 秒就不用除1000，参数带没带000
    let timeSta:TimeInterval = TimeInterval(timeStamp / 1000)
    //时间差
    let reduceTime : TimeInterval = currentTime - timeSta
    //时间差小于60秒
    if reduceTime < 60 {
        return "刚刚"
    }
    //时间差大于一分钟小于60分钟内
    let mins = Int(reduceTime / 60)
    if mins < 60 {
        return "\(mins)分钟前"
    }
    let hours = Int(reduceTime / 3600)
    if hours < 24 {
        return "\(hours)小时前"
    }
    let days = Int(reduceTime / 3600 / 24)
    if days < 30 {
        return "\(days)天前"
    }
    //不满足上述条件---或者是未来日期-----直接返回日期
    let date = NSDate(timeIntervalSince1970: timeSta)
    let dfmatter = DateFormatter()
    //yyyy-MM-dd HH:mm:ss
    dfmatter.dateFormat="yyyy年MM月dd日 HH:mm:ss"
    return dfmatter.string(from: date as Date)
}