+ (NSString *)getUnixTimeString:(NSString *)timeStr{
double unixTimeStamp = [timeStr doubleValue];
NSTimeInterval _interval=unixTimeStamp;
NSDate *date = [NSDate dateWithTimeIntervalSince1970:_interval];
NSDateFormatter *_formatter=[[NSDateFormatter alloc]init];
[_formatter setLocale:[NSLocale currentLocale]];
[_formatter setDateFormat:@"yyyy.MM.dd kk.mm"];
NSString * _date=[_formatter stringFromDate:date];
return _date;
}
+ (NSString *)getUnixTimeInt:(NSInteger)timeInt {
NSTimeInterval _interval= (double)timeInt;
NSDate *date = [NSDate dateWithTimeIntervalSince1970:_interval];
NSDateFormatter *_formatter=[[NSDateFormatter alloc]init];
[_formatter setLocale:[NSLocale currentLocale]];
[_formatter setDateFormat:@"yyyy.MM.dd kk.mm"];
NSString * _date=[_formatter stringFromDate:date];
return _date;
}
//返回上下午 返回12小时制时间
+(NSDictionary *) changeSptoTwelveTime:(NSString *)spString
{
NSDate * timeDate = [self changeSpToTime:spString];
NSString * str1 = [self nsdateToString:timeDate];
NSString * str2 = [str1 substringWithRange:NSMakeRange(11,5)];
NSInteger str3 = [[str2 substringWithRange:NSMakeRange(0,2)] integerValue];
NSString * state = nil;
NSString * time = nil;
if (str3 >= 12) {
state = @"PM";
} else{
state = @"AM";
}
NSString * str4 = [self nsdateToStrings:timeDate];
NSString * str5 = [str4 substringWithRange:NSMakeRange(11,5)];
time = str5;
NSDictionary * dic = [NSDictionary dictionaryWithObjectsAndKeys:state,@"state",time,@"time",nil];
return dic;
}
///这个方法针对固定格式的时间需求 例如只需要HH:mm 那么传入时间戳以及你所需要的那部分在字符串中所占的位置
+(NSString *)changeSpToTime:(NSString*)spString Start:(NSInteger) start Length:(NSInteger)length//将时间戳转换成NSString并截取相应长度
{
NSDate * timeDate = [self changeSpToTime:spString];
NSString * str1 = [self nsdateToString:timeDate];
NSString * str2 = [str1 substringWithRange:NSMakeRange(start, length)];
return str2;
}
//获取当前系统的时间戳
+(long)getTimeSp{
long time;
NSDate *fromdate=[NSDate date];
time=(long)[fromdate timeIntervalSince1970];
return time;
}
//将时间戳转换成NSDate
+(NSDate *)changeSpToTime:(NSString*)spString{
NSDate *confromTimesp = [NSDate dateWithTimeIntervalSince1970:[spString intValue]];
return confromTimesp;
}
//将时间戳转换成NSDate,加上时区偏移
+(NSDate*)zoneChange:(NSString*)spString{
NSDate *confromTimesp = [NSDate dateWithTimeIntervalSince1970:[spString intValue]];
NSTimeZone *zone = [NSTimeZone systemTimeZone];
NSInteger interval = [zone secondsFromGMTForDate:confromTimesp];
NSDate *localeDate = [confromTimesp dateByAddingTimeInterval: interval];
return localeDate;
}
//比较给定NSDate与当前时间的时间差,返回相差的秒数
+(long)timeDifference:(NSDate *)date{
NSDate *localeDate = [NSDate date];
long difference =fabs([localeDate timeIntervalSinceDate:date]);
return difference;
}
//将NSDate按yyyy-MM-dd HH:mm:ss格式时间输出
+(NSString*)nsdateToString:(NSDate *)date{
NSDateFormatter *dateFormat=[[NSDateFormatter alloc]init];
[dateFormat setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSString* string=[dateFormat stringFromDate:date];
return string;
}
//将NSDate按yyyy-MM-dd hh:mm:ss格式时间输出
+(NSString*)nsdateToStrings:(NSDate *)date{
NSDateFormatter *dateFormat=[[NSDateFormatter alloc]init];
[dateFormat setDateFormat:@"yyyy-MM-dd hh:mm:ss"];
NSString* string=[dateFormat stringFromDate:date];
return string;
}
//将yyyy-MM-dd HH:mm:ss格式时间转换成时间戳
+(long)changeTimeToTimeSp:(NSString *)timeStr{
long time;
NSDateFormatter *format=[[NSDateFormatter alloc] init];
[format setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSDate *fromdate=[format dateFromString:timeStr];
time= (long)[fromdate timeIntervalSince1970];
return time;
}
//获取当前系统的yyyy-MM-dd HH:mm:ss格式时间
+(NSString *)getTime{
NSDate *fromdate=[NSDate date];
NSDateFormatter *dateFormat=[[NSDateFormatter alloc]init];
[dateFormat setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSString* string=[dateFormat stringFromDate:fromdate];
return string;
}
Unix时间戳转化
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