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n4mw
9年前发布

ios 时间类转化为字符串

//  NSString* timeStr = [self stringWithDate: [NSDate dateWithTimeIntervalSince1970:userGifGrouptEntity.lastGiftSentTime / 1000]]    - (NSString *)stringWithDate:(NSDate *)date  {        if (date == nil)            return @"";        NSDate *now = [NSDate date];        NSTimeInterval time = [now timeIntervalSinceDate:date];        NSCalendar* calendar = [NSCalendar currentCalendar];        NSDateComponents *nowComponents = [calendar components:NSYearCalendarUnit | NSHourCalendarUnit fromDate:now];        NSDateComponents *dateComponets = [calendar components:NSYearCalendarUnit fromDate:date];                NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];        [dateFormatter setCalendar: [NSCalendar autoupdatingCurrentCalendar]];                if ([nowComponents year] != [dateComponets year]) {                [dateFormatter setDateFormat:@"MM-dd-yyyy"];                 return [dateFormatter stringFromDate:date];        }          int nowHour = (int)[nowComponents hour];        int days_ago = ((int)time + 3600*(24-nowHour))/(3600*24);                if (days_ago == 0){            [dateFormatter setDateFormat:@"HH:mm"];            return [dateFormatter stringFromDate:date];        }else if(days_ago == 1) {                        return @"Yesterday";              }else{                            [dateFormatter setDateFormat:@"MM-dd"];                     return [dateFormatter stringFromDate:date];        }    }