iOS——json13位時間戳轉換時間格式

(1).Since1970

+(NSString *)getNewDate:(NSString *)dateStr{

    NSDate *date = [NSDate dateWithTimeIntervalSince1970:[dateStr doubleValue]/1000];

    NSDateFormatter * formatter = [[NSDateFormatter alloc]init];

    //指定輸出的格式  格式:07.06 12:33

    [formatter setDateFormat:@"MM.dd HH:mm"];

    NSString *timeString= [formatter stringFromDate:date];

    return timeString;

}

(2).SinceNow

+(NSString *)getYearsNumberDate:(NSString *)dateStr{/** sinceNow */

    NSDate *date = [NSDate dateWithTimeIntervalSinceNow:[dateStr doubleValue]/1000];

    NSDateFormatter * formatter = [[NSDateFormatter alloc]init];

    //指定輸出的格式  格式:2016.07.06 12:33

    [formatter setDateFormat:@"yyyy.MM.dd HH:mm"];

    NSString *timeString= [formatter stringFromDate:date];

    return timeString;

}