//計算 距離現(xiàn)在的時間
-(NSString *)getUTCFormateDate:(NSDate *)newsDate {
NSString *dateContent;
NSTimeInterval secondsPerDay = 24 * 60 * 60;
NSDate *today=[[NSDate alloc] init];
NSDate *yearsterDay = [[NSDate alloc] initWithTimeIntervalSinceNow:-secondsPerDay];
NSDate *qianToday = [[NSDate alloc] initWithTimeIntervalSinceNow:-2*secondsPerDay];
//假設這是你要比較的date：NSDate *yourDate = ……
//日歷
NSCalendar* calendar = [NSCalendar currentCalendar];
unsigned unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit;
NSDateComponents* comp1 = [calendar components:unitFlags fromDate:newsDate];
NSDateComponents* comp2 = [calendar components:unitFlags fromDate:yearsterDay];
NSDateComponents* comp3 = [calendar components:unitFlags fromDate:qianToday];
NSDateComponents* comp4 = [calendar components:unitFlags fromDate:today];
if ( comp1.year == comp2.year && comp1.month == comp2.month && comp1.day == comp2.day) {
dateContent = @"昨天";
}
else if (comp1.year == comp3.year && comp1.month == comp3.month && comp1.day == comp3.day) {
dateContent = @"前天";
} else if (comp1.year == comp4.year && comp1.month == comp4.month && comp1.day == comp4.day)
{
dateContent = @"今天";
}
else {
//返回0說明該日期不是今天风瘦、昨天柒瓣、前天
dateContent = @"0";
}
return dateContent;
}
