計算兩個時間差的兩個函數

計算兩個時間差的兩個函數

兩個時間之差

- (NSString *)intervalFromLastDate: (NSString *) dateString1 toTheDate:(NSString *) dateString2

{

NSArray *timeArray1=[dateString1 componentsSeparatedByString:@"."];

dateString1=[timeArray1 objectAtIndex:0];

NSArray *timeArray2=[dateString2 componentsSeparatedByString:@"."];

dateString2=[timeArray2 objectAtIndex:0];

NSLog(@"%@.....%@",dateString1,dateString2);

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

[date setDateFormat:@"yyyy-MM-dd HH:mm:ss"];

NSDate *d1=[date dateFromString:dateString1];

NSTimeInterval late1=[d1 timeIntervalSince1970]*1;

NSDate *d2=[date dateFromString:dateString2];

NSTimeInterval late2=[d2 timeIntervalSince1970]*1;

NSTimeInterval cha=late2-late1;

NSString *timeString=@"";

NSString *house=@"";

NSString *min=@"";

NSString *sen=@"";

sen = [NSString stringWithFormat:@"%d", (int)cha%60];

// min = [min substringToIndex:min.length-7];

// 秒

sen=[NSString stringWithFormat:@"%@", sen];

min = [NSString stringWithFormat:@"%d", (int)cha/60%60];

// 分

min=[NSString stringWithFormat:@"%@", min];

// 小時

house = [NSString stringWithFormat:@"%d", (int)cha/3600];

// house = [house substringToIndex:house.length-7];

house=[NSString stringWithFormat:@"%@", house];

timeString=[NSString stringWithFormat:@"%@:%@:%@",house,min,sen];

[date release];

return timeString;

}

一個時間距現在的時間

- (NSString *)intervalSinceNow: (NSString *) theDate

NSArray *timeArray=[theDate componentsSeparatedByString:@"."];

theDate=[timeArray objectAtIndex:0];

NSDate *d=[date dateFromString:theDate];

NSTimeInterval late=[d timeIntervalSince1970]*1;

NSDate* dat = [NSDate date];

NSTimeInterval now=[dat timeIntervalSince1970]*1;

NSTimeInterval cha=late-now;

if (cha/3600<1) {

timeString = [NSString stringWithFormat:@"%f", cha/60];

timeString = [timeString substringToIndex:timeString.length-7];

timeString=[NSString stringWithFormat:@"剩餘%@分", timeString];

if (cha/3600>1&&cha/86400<1) {

timeString = [NSString stringWithFormat:@"%f", cha/3600];

timeString=[NSString stringWithFormat:@"剩餘%@小時", timeString];

if (cha/86400>1)

timeString = [NSString stringWithFormat:@"%f", cha/86400];

timeString=[NSString stringWithFormat:@"剩餘%@天", timeString];

本文轉自 卓行天下  51CTO部落格，原文連結：http://blog.51cto.com/9951038/1747477，如需轉載請自行聯系原作者