NSString *str = @"2015-01-05 20:10:23";
NSLog(@"%@",[self intervalSinceNow:str]);
- (NSString *)intervalSinceNow: (NSString *) theDate
{
NSDateFormatter *date = [[NSDateFormatter alloc] init];
[date setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSDate *d = [date dateFromString:theDate];
NSTimeInterval late = [d timeIntervalSince1970] * 1;
NSDate *dat = [NSDate dateWithTimeIntervalSinceNow:0];
NSTimeInterval now = [dat timeIntervalSince1970] * 1;
NSString *timeString=@"";
NSTimeInterval cha = now - late;
if (cha / 3600 < 1) {
timeString = [NSString stringWithFormat:@"%f", cha / 60];
timeString = [timeString substringToIndex:timeString.length - 7];
timeString = [NSString stringWithFormat:@"%@分钟前", timeString];
}
if (cha / 3600 >1 && cha / 86400 < 1) {
timeString = [NSString stringWithFormat:@"%f", cha / 3600];
timeString = [timeString substringToIndex:timeString.length - 7];
timeString = [NSString stringWithFormat:@"%@小时前", timeString];
}
if (cha / 86400 > 1)
{
timeString = [NSString stringWithFormat:@"%f", cha / 86400];
timeString = [timeString substringToIndex:timeString.length-7];
timeString = [NSString stringWithFormat:@"%@天前", timeString];
}
return timeString;
}