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add future dates to -[NSDate relativeToNow]

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Sami Samhuri 2011-09-05 21:24:06 -07:00
parent f401375380
commit e48868e253
1 changed files with 50 additions and 4 deletions
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52
Marshmallows/NSDate+relative.m
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@ -13,15 +13,58 @@
#define DAY (24.0 * HOUR) #define DAY (24.0 * HOUR)
#define WEEK (7.0 * DAY) #define WEEK (7.0 * DAY)
#define MONTH (30.0 * DAY) #define MONTH (30.0 * DAY)
#define YEAR (365.25 * DAY)
@implementation NSDate (NSDate_relative) @implementation NSDate (NSDate_relative)
- (NSString *) relativeToNow - (NSString *) relativeToNow
{ {
double diff = [[NSDate date] timeIntervalSinceDate: self]; 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"; return @"right now";
} }
// past
else if (diff < 2 * MINUTE) { else if (diff < 2 * MINUTE) {
return @"a minute ago"; return @"a minute ago";
} }
@ -49,11 +92,14 @@
else if (diff < 8 * WEEK) { else if (diff < 8 * WEEK) {
return @"last month"; return @"last month";
} }
else if (diff < 12 * MONTH) { else if (diff < YEAR) {
return [NSString stringWithFormat: @"%d months ago", (int)(diff / MONTH)]; return [NSString stringWithFormat: @"%d months ago", (int)(diff / MONTH)];
} }
else if (diff < 2 * YEAR) {
return @"last year";
}
else { else {
return @"a long time ago"; return [NSString stringWithFormat: @"%d years ago", (int)(diff / YEAR)];
} }
} }