이번에는 저번 바이오리듬 보다 조금 기능을 추가하여 만들어 보겠습니다. 상단에는 한달 단위로 그래프를 보여주고, 하단에는 해당일의 바이오리듬 정보를 보여 줍니다. 그리고 생일설정을 저장할 수 있도록 하겠습니다. 하단 버튼들의 기능은 아래와 같습니다.

• << : 한달 전으로 이동
  
• < : 하루 전으로 이동
  
• > : 하루 후로 이동
  
• >> : 한달 후로 이동
• i : 생일 설정 

한가지 오류가 있습니다. 생일설정 시에 기존의 저장된 날짜가 DatePicker에 설정되지 않습니다. 값은 정확한데 보여지는 부분은 minimumDate로 초기에 선택되어져 있는 것 같습니다. 검색을 해봐도 같은 증상을 겪은 경우는 보았는데, 원인과 해결책은 찾지 못했습니다.

#define    MAX_DATATYPE            3

#define US_BIRTHYEAR_KEY        @"birth_year"
#define US_BIRTHMONTH_KEY     @"birth_month"
#define US_BIRTHDAY_KEY          @"birth_day"

#define NM_BIRTHDAYCHANGED   @"NTBirthdayChanged"

#define NAV_PREVMONTH            1
#define NAV_PREVDAY                 2
#define NAV_NEXTDAY                 3
#define NAV_NEXTMONTH            4

#define ONEDAY_SECOND            (24 * 60 * 60)

#import <UIKit/UIKit.h>

@interface GraphView : UIView {
    UIImage                *backgroundImage;
   
    NSDateComponents    *currentDate;
    NSDateComponents    *birthDate;
   
    float biorhythmData[31][MAX_DATATYPE];
}

@property (nonatomic, retain) NSDateComponents *currentDate;
@property (nonatomic, retain) NSDateComponents *birthDate;

- (void)setBirthDate:(int)year atMonth:(int)month atDay:(int)day;
- (void)setCurrentDate:(int)year atMonth:(int)month atDay:(int)day;
- (void)changeDate:(int)pos;

- (NSDateComponents *)currentDate;

- (void)resetBiorhythmData;
- (float *)getBiorhythmDayData:(int)day;

@end

#import "Global.h"
#import "GraphView.h"

@implementation GraphView

@synthesize currentDate;
@synthesize birthDate;

- (id)initWithFrame:(CGRect)frame {
    if (self = [super initWithFrame:frame]) {
    }
    return self;
}

- (void)awakeFromNib {
    currentDate = [[NSDateComponents alloc] init];
   
    /* 배경 이미지로 사용할 bio.png 로드 */
    backgroundImage = [[UIImage alloc] initWithContentsOfFile:
                       [[NSBundle mainBundle] pathForResource:@"bio" ofType:@"png"]];
}

- (void)drawRect:(CGRect)rect {
#define START_X            17    // 그래프 시작 X 위치
#define START_Y            22  // 그래프 시작 Y 위치
#define DAY_WIDTH        10  // 일별 간격
#define BOTTOM_HEIGHT    4   // 하단 공백 높이

    /* 데이터별 색상 테이블 */
    static const CGFloat color[MAX_DATATYPE][5] = {
        { 1.0, 0.0, 0.0, 1.0 }, //red
        { 0.0, 1.0, 0.0, 1.0 }, //green
        { 0.0, 0.0, 1.0, 1.0 }  //blue
    };
   
    CGSize viewSize = rect.size;
    CGContextRef context = UIGraphicsGetCurrentContext();

    /* 배경 이미지 출력 */
    CGPoint point;
    point.x = point.y = 0;
    [backgroundImage drawAtPoint:point];

    /* 오늘 날짜를 가르키는 위치는 노란 선으로 출력 */
    CGContextBeginPath(context);
    CGContextSetLineWidth(context, 1.0);
    CGContextSetRGBStrokeColor(context, 1.0, 0.8, 0.0, 1.0);
    CGContextMoveToPoint(context, START_X + (DAY_WIDTH * ([currentDate day] - 1)), START_Y);
    CGContextAddLineToPoint(context, START_X + (DAY_WIDTH * ([currentDate day] - 1)), viewSize.height - BOTTOM_HEIGHT);
    CGContextStrokePath(context);
   
    /* 바이오리듬 출력 */
    int i, j;
    int lineX = START_X;
   
    int vcenter = START_Y + (viewSize.height - START_Y - BOTTOM_HEIGHT)/2; // 그래프의 Y 중간 좌표
   
    /* 바이오리듬 출력 */
    for (i = 1; i < 31; i++) {
        for(j = 0; j < MAX_DATATYPE; j++) {
            CGContextBeginPath(context);
            CGContextSetLineWidth(context, 2.0);
           
            CGContextSetStrokeColor(context, color[j]);
           
            CGContextMoveToPoint(context, lineX, vcenter - biorhythmData[i-1][j]);
            CGContextAddLineToPoint(context, lineX + DAY_WIDTH, vcenter - biorhythmData[i][j]);
            CGContextStrokePath(context);
        }
        lineX += DAY_WIDTH;
    }
}

- (void)dealloc {
    [backgroundImage release];
    [currentDate release];
    [super dealloc];
}

- (void)resetBiorhythmData {
    static const double s_values[MAX_DATATYPE] = {
        23.0, 33.0, 28.0 // 신체, 지성, 감성
    };
   
    /* 현재 설정된 날짜의 1일 부터 생일 사이의 날수를 구한다. */
    NSDateComponents *firstDate = [[NSDateComponents alloc] init];
    [firstDate setYear: [currentDate year]];
    [firstDate setMonth: [currentDate month]];
    [firstDate setDay:1];
   
    NSDate *tempDay = [[NSCalendar currentCalendar] dateFromComponents:firstDate];
    NSDate *birthDay = [[NSCalendar currentCalendar] dateFromComponents:birthDate];
   
    NSTimeInterval ti = [tempDay timeIntervalSinceDate:birthDay];
    [firstDate release];

    /* 바이오리듬 데이터를 구한다 */
    double days = ceil(fabs(ti) / ONEDAY_SECOND);
   
    for (int i = 0; i < 31; i++) {
        for(int j = 0; j < MAX_DATATYPE; j++) {
            biorhythmData[i][j] = sin((days/s_values[j]) * 2 * 3.14195) * 100;
        }
        days += 1.0;
    }
   
    /* 변경된 데이터로 다시 그림 */
    [self setNeedsDisplay];
}

/* 현재 날짜 변경 */
- (void)setCurrentDate:(int)year atMonth:(int)month atDay:(int)day {
    [currentDate setYear:year];
    [currentDate setMonth:month];
    [currentDate setDay:day];
}

/* 생일 변경 */
- (void)setBirthDate:(int)year atMonth:(int)month atDay:(int)day {
    [birthDate setYear:year];
    [birthDate setMonth:month];
    [birthDate setDay:day];
   
    NSLog(@"SET BIRTHDAY: %d, %d, %d", year, month, day);
}

/* 사용자가 버튼을 클릭했을 때, 날짜를 변경한다 */
- (void)changeDate:(int)pos {
    NSRange monthRange;
   
    NSTimeInterval newValue = 0;
    NSDate *tempDate = [[NSCalendar currentCalendar] dateFromComponents:currentDate];
   
    if (pos == NAV_PREVMONTH) {
        /* 이전 달로 이동을 위해 이전 달의 날수를 구한다 */
        NSDateComponents *prevMonthDate = [[NSDateComponents alloc] init];
        [prevMonthDate setYear: [currentDate year]];
        [prevMonthDate setMonth: [currentDate month]-1];
        [prevMonthDate setDay:1];
       
        monthRange = [[NSCalendar currentCalendar] rangeOfUnit:NSDayCalendarUnit
                    inUnit:NSMonthCalendarUnit
                    forDate:[[NSCalendar currentCalendar] dateFromComponents:prevMonthDate]];
        [prevMonthDate release];
       
        /* 한달 전으로 이동 */
        newValue = ONEDAY_SECOND * monthRange.length;
        newValue = -newValue;
    }
    else if (pos == NAV_PREVDAY) {
        /* 하루 전으로 이동 */
        newValue = -ONEDAY_SECOND;
    }   
    else if (pos == NAV_NEXTDAY) {
        /* 하루 후로 이동 */
        newValue = ONEDAY_SECOND;
    }   
    else if (pos == NAV_NEXTMONTH) {
        /* 다음 달로 이동을 위해 현재 달의 날수를 구한다 */
        monthRange = [[NSCalendar currentCalendar] rangeOfUnit:NSDayCalendarUnit
                                                        inUnit:NSMonthCalendarUnit
                                                       forDate:[[NSCalendar currentCalendar] dateFromComponents:currentDate]];
        /* 한달 후로 이동 */
        newValue = ONEDAY_SECOND * monthRange.length;
    }

    /* 날짜를 변경하고 변경된 날짜를 구한다. */
    NSDateComponents *newDate = [[NSCalendar currentCalendar] components:(NSYearCalendarUnit | NSMonthCalendarUnit |  NSDayCalendarUnit)
                                                            fromDate:[tempDate addTimeInterval:newValue]];
   
    /* 현재 날짜를 변경 */
    [currentDate setYear: [newDate year]];
    [currentDate setMonth: [newDate month]];
    [currentDate setDay: [newDate day]];
   
    /* 바이오리듬을 다시 계산하고 출력한다. */
    [self resetBiorhythmData];
}

- (float *)getBiorhythmDayData:(int)day {
    return biorhythmData[day-1];
}

- (NSDateComponents *)currentDate {
    return currentDate;
}
@end

#import <UIKit/UIKit.h>

@interface MainView : UIView {
    UIImage     *barFrame[MAX_DATATYPE];
    double        bioData[MAX_DATATYPE];
}

-(void)setData:(int)value1 secondValue:(int)value2 thirdValue:(int)value2;

@end

#import "Global.h"
#import "MainView.h"

@implementation MainView

- (id)initWithFrame:(CGRect)frame {
    if (self = [super initWithFrame:frame]) {
    }
    return self;
}

- (void)awakeFromNib {
    /* 바의 배경을 위한 이미지를 로드한다. */
    for (int i = 1; i <= MAX_DATATYPE; i++) {
        barFrame[i - 1] = [[UIImage alloc] initWithContentsOfFile:
         [[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"frame%d", i] ofType:@"png"]];
    }
}

- (void)drawRect:(CGRect)rect {
#define CENTER_X        210  // 바의 중간(0) 위치
#define START_Y            300  // 바가 출력될 Y 위치
#define START_X            120  // 바가 출력될 X 위치
#define BAR_HEIGHT        14.0 // 바의 높이   
#define    BAR_SPACE        40   // 각 바간 간격
   
    // Drawing code
    CGContextRef context = UIGraphicsGetCurrentContext();
   
    int y = START_Y + 15;
    CGPoint point;
   
    point.y = START_Y;
    point.x = START_X;
   
    for (int i = 0; i < MAX_DATATYPE; i++) {
        /* 배경 이미지 출력 */
        [barFrame[i] drawAtPoint:point];
       
        CGContextBeginPath(context);
        CGContextSetLineWidth(context, BAR_HEIGHT);
       
        /* 바이오리듬 값이 0보다 작으면 붉은 색으로 크면 파란색으로 표시 */
        if (bioData[i] > 0)
            CGContextSetRGBStrokeColor(context, 0.0, 0.0, 1.0, 1.0);
        else
            CGContextSetRGBStrokeColor(context, 1.0, 0.0, 0.0, 1.0);
       
        /* 바를 그린다 */
        CGContextMoveToPoint(context, CENTER_X, y);
        CGContextAddLineToPoint(context, CENTER_X + (bioData[i] * 80/100) , y);
       
        CGContextStrokePath(context);

        /* Y 좌표 변경 */
        point.y += BAR_SPACE;
        y += BAR_SPACE;
    }
}

-(void)setData:(int)value1 secondValue:(int)value2 thirdValue:(int)value3 {
    bioData[0] = value1;
    bioData[1] = value2;
    bioData[2] = value3;
}

- (void)dealloc {
    for (int i = 0; i < MAX_DATATYPE; i++) {
        [barFrame[i] release];
    }
   
    [super dealloc];
}

@end

#import <UIKit/UIKit.h>

@class GraphView;
@class MainView;

@interface MainViewController : UIViewController {
    IBOutlet MainView        *mainView;   
    IBOutlet GraphView      *graphView;
    IBOutlet UITextField    *value_1;
    IBOutlet UITextField    *value_2;
    IBOutlet UITextField    *value_3;
   
    IBOutlet UIBarButtonItem *currentDate;
}

- (void)updateInfoUI;
- (void)birthdayChanged:(NSNotification *)note;

- (IBAction)navigationButtonClicked:(id)sender;

@end

#import "Global.h"
#import "MainViewController.h"
#import "MainView.h"
#import "GraphView.h"

@implementation MainViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
    if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad {
    /* 오늘 날짜를 구한다. */
    NSDateComponents *today = [[NSCalendar currentCalendar]
                       components:(NSYearCalendarUnit | NSMonthCalendarUnit |  NSDayCalendarUnit)
                       fromDate:[NSDate date]];
   
    /* 현재 날짜 설정 */
    [graphView setCurrentDate:[today year]
                      atMonth:[today month]
                        atDay:[today day]];

    /* 생년월일 설정 */
    [graphView setBirthDate:[[NSUserDefaults standardUserDefaults] integerForKey:US_BIRTHYEAR_KEY]
                      atMonth:[[NSUserDefaults standardUserDefaults] integerForKey:US_BIRTHMONTH_KEY]
                        atDay:[[NSUserDefaults standardUserDefaults] integerForKey:US_BIRTHDAY_KEY]];

    /* 그래프를 그리고 UI를 설정한다. */
    [graphView resetBiorhythmData];
    [self updateInfoUI];
   
    /* 환경설정에서 생일이 변경되었을 때를 위해 옵저버로 등록 */
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(birthdayChanged:)
                                                 name:NM_BIRTHDAYCHANGED
                                               object:nil];
}

- (void)updateInfoUI {
    /* 하단 타이틀에 현재 날짜를 출력 */
    NSDateComponents *date = [graphView currentDate];
    [currentDate setTitle:[NSString stringWithFormat:@"%d.%02d.%02d",
                           [date year], [date month], [date day]]];
   
    float *bioValue = [graphView getBiorhythmDayData:[date day]];
    int value1 = (int)ceil(bioValue[0]);
    int value2 = (int)ceil(bioValue[1]);
    int value3 = (int)ceil(bioValue[2]);
   
    /* 각 바이오리듬 값 출력 */
    [value_1 setText:[NSString stringWithFormat:@"%d", value1]];
    [value_2 setText:[NSString stringWithFormat:@"%d", value2]];
    [value_3 setText:[NSString stringWithFormat:@"%d", value3]];
   
    /* mainView에 현재 설정된 값을 알려주고, 바가 다시 그려지도록 한다. */
    [mainView setData:value1 secondValue:value2 thirdValue:value3];
    [mainView setNeedsDisplay];
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning]; // Releases the view if it doesn't have a superview
    // Release anything that's not essential, such as cached data
}

- (void)dealloc {
    [super dealloc];
}

- (void)birthdayChanged:(NSNotification *)note
{
    /* 생일이 변경되었을 때 다시 설정하고 그려지도록 한다. */
    [graphView setBirthDate:[[NSUserDefaults standardUserDefaults] integerForKey:US_BIRTHYEAR_KEY]
                      atMonth:[[NSUserDefaults standardUserDefaults] integerForKey:US_BIRTHMONTH_KEY]
                        atDay:[[NSUserDefaults standardUserDefaults] integerForKey:US_BIRTHDAY_KEY]];
   
    [graphView resetBiorhythmData];
    [self updateInfoUI];
}       

- (IBAction) navigationButtonClicked:(id)sender {
    /* 사용자가 날짜 이동 버튼을 클릭하였을 경우 처리 */
    [graphView changeDate:[sender tag]];
    [self updateInfoUI];
}

@end

#import <UIKit/UIKit.h>

@interface FlipsideViewController : UIViewController {
    IBOutlet UIDatePicker    *datePicker;
}

@property (nonatomic, retain) UIDatePicker *datePicker;

@end

#import "FlipsideViewController.h"

@implementation FlipsideViewController

@synthesize datePicker;

- (void)viewDidLoad {
    self.view.backgroundColor = [UIColor viewFlipsideBackgroundColor];       
 }

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning]; // Releases the view if it doesn't have a superview
    // Release anything that's not essential, such as cached data
}

- (void)dealloc {
    [super dealloc];
}

@end

#import "Global.h"
#import "RootViewController.h"
#import "MainViewController.h"
#import "FlipsideViewController.h"

@implementation RootViewController

@synthesize infoButton;
@synthesize flipsideNavigationBar;
@synthesize mainViewController;
@synthesize flipsideViewController;

- (void)viewDidLoad {
   
    MainViewController *viewController = [[MainViewController alloc] initWithNibName:@"MainView" bundle:nil];
    self.mainViewController = viewController;
    [viewController release];
   
    [self.view insertSubview:mainViewController.view belowSubview:infoButton];
}

- (void)loadFlipsideViewController {
   
    FlipsideViewController *viewController = [[FlipsideViewController alloc] initWithNibName:@"FlipsideView" bundle:nil];
    self.flipsideViewController = viewController;
    [viewController release];
   
    // Set up the navigation bar
   
    UINavigationBar *aNavigationBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 44.0)];
    aNavigationBar.barStyle = UIBarStyleBlackOpaque;
    self.flipsideNavigationBar = aNavigationBar;
    [aNavigationBar release];
   
    UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(toggleView)];
    UINavigationItem *navigationItem = [[UINavigationItem alloc] initWithTitle:@"iBiorhythm"];
    navigationItem.rightBarButtonItem = buttonItem;
    [flipsideNavigationBar pushNavigationItem:navigationItem animated:NO];
    [navigationItem release];
    [buttonItem release];
}

- (IBAction)toggleView {   
    if (flipsideViewController == nil) {
        [self loadFlipsideViewController];
    }
   
    UIView *mainView = mainViewController.view;
    UIView *flipsideView = flipsideViewController.view;
   
    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:1];
    [UIView setAnimationTransition:([mainView superview] ? UIViewAnimationTransitionFlipFromRight : UIViewAnimationTransitionFlipFromLeft) forView:self.view cache:YES];
   
    if ([mainView superview] != nil) {
        [flipsideViewController viewWillAppear:YES];
        [mainViewController viewWillDisappear:YES];
        [mainView removeFromSuperview];
        [infoButton removeFromSuperview];
        [self.view addSubview:flipsideView];
        [self.view insertSubview:flipsideNavigationBar aboveSubview:flipsideView];
        [mainViewController viewDidDisappear:YES];
        [flipsideViewController viewDidAppear:YES];
       
        /* DataPicker 날짜를 저장된 날짜로 설정 (현재 동작하지 않음) */
        NSDateComponents *curDate = [[NSDateComponents alloc] init];
       
        int year = [[NSUserDefaults standardUserDefaults] integerForKey:@"birth_year"];
        int month = [[NSUserDefaults standardUserDefaults] integerForKey:@"birth_year"];
        int day = [[NSUserDefaults standardUserDefaults] integerForKey:@"birth_year"];

        [curDate setYear: year];
        [curDate setMonth: month];
        [curDate setDay: day];
   
        NSDate *tempDate = [[NSCalendar currentCalendar] dateFromComponents:curDate];
        [[flipsideViewController datePicker] setDate:tempDate animated:YES];
           
        [curDate release];
    } else {
        [mainViewController viewWillAppear:YES];
        [flipsideViewController viewWillDisappear:YES];
        [flipsideView removeFromSuperview];
        [flipsideNavigationBar removeFromSuperview];
        [self.view addSubview:mainView];
        [self.view insertSubview:infoButton aboveSubview:mainViewController.view];
        [flipsideViewController viewDidDisappear:YES];
        [mainViewController viewDidAppear:YES];
       
        /* 사용자가 설정한 날짜(생일)를 저장 한다 */
        NSDateComponents *newDate = [[NSCalendar currentCalendar]
              components:(NSYearCalendarUnit | NSMonthCalendarUnit |  NSDayCalendarUnit)
              fromDate:[[flipsideViewController datePicker] date]];
       
        [[NSUserDefaults standardUserDefaults] setInteger:[newDate year] forKey:US_BIRTHYEAR_KEY];
        [[NSUserDefaults standardUserDefaults] setInteger:[newDate month] forKey:US_BIRTHMONTH_KEY];
        [[NSUserDefaults standardUserDefaults] setInteger:[newDate day] forKey:US_BIRTHDAY_KEY];
       
        /* 바이오리듬이 변경되도록 메시지를 보낸다. */
        [[NSNotificationCenter defaultCenter]
                   postNotificationName:NM_BIRTHDAYCHANGED
                   object:self];
    }
    [UIView commitAnimations];
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning]; // Releases the view if it doesn't have a superview
    // Release anything that's not essential, such as cached data
}

- (void)dealloc {
    [infoButton release];
    [flipsideNavigationBar release];
    [mainViewController release];
    [flipsideViewController release];
    [super dealloc];
}

@end