add future dates to -[NSDate relativeToNow]

This commit is contained in:
Sami Samhuri 2011-09-05 21:24:06 -07:00
parent f401375380
commit e48868e253

View file

@ -13,15 +13,58 @@
#define DAY (24.0 * HOUR)
#define WEEK (7.0 * DAY)
#define MONTH (30.0 * DAY)
#define YEAR (365.25 * DAY)
@implementation NSDate (NSDate_relative)
- (NSString *) relativeToNow
{
double diff = [[NSDate date] timeIntervalSinceDate: self];
if (diff < MINUTE) {
// future
if (diff < -2 * YEAR) {
return [NSString stringWithFormat: @"in %d years", abs(diff / YEAR)];
}
else if (diff < -YEAR) {
return @"next year";
}
else if (diff < -8 * WEEK) {
return [NSString stringWithFormat: @"in %d months", abs(diff / MONTH)];
}
else if (diff < -4 * WEEK) {
return @"next month";
}
else if (diff < -2 * WEEK) {
return [NSString stringWithFormat: @"in %d weeks", abs(diff / WEEK)];
}
else if (diff < -WEEK) {
return @"next week";
}
else if (diff < -2 * DAY) {
return [NSString stringWithFormat: @"in %d days", abs(diff / DAY)];
}
else if (diff < -DAY) {
return @"tomorrow";
}
else if (diff < -2 * HOUR) {
return [NSString stringWithFormat: @"in %d hours", abs(diff / HOUR)];
}
else if (diff < -HOUR) {
return @"in an hour";
}
else if (diff < -2 * MINUTE) {
return [NSString stringWithFormat: @"in %d minutes", abs(diff / MINUTE)];
}
else if (diff < -MINUTE) {
return @"in a minute";
}
// present
else if (diff < MINUTE) {
return @"right now";
}
// past
else if (diff < 2 * MINUTE) {
return @"a minute ago";
}
@ -49,12 +92,15 @@
else if (diff < 8 * WEEK) {
return @"last month";
}
else if (diff < 12 * MONTH) {
else if (diff < YEAR) {
return [NSString stringWithFormat: @"%d months ago", (int)(diff / MONTH)];
}
else if (diff < 2 * YEAR) {
return @"last year";
}
else {
return @"a long time ago";
}
return [NSString stringWithFormat: @"%d years ago", (int)(diff / YEAR)];
}
}
@end