iPhone 키보드 닫기 done 버튼 추가

// NotificationNotification 을 사용하기 위해서 NotificationCenter에 특정 메시지를 등록해놓아야 한다.
// 등록된 메시지메시지 (여기서는 UIKeyboardWillShowNotification)가 불려지면 등록된 옵저버는
그것을 감지하고 selector를 이용해서 그것을 처리할처리할 메소드를 부른다.

- (void)viewDidLoad {
    [[NSNotificationCenter defaultCenter] addObserver:selfaddObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
    [super viewDidLoad];
}


//// 위에서 키보드가 나타나기 직전에 keyboardWillShow:메소드가 불리도록 등록해놨다.
// 여기서 키보드뷰에 툴바뷰를툴바뷰를 붙인다.
- (void)keyboardWillShow:(NSNotification *)notification
{   
     for (UIWindow *keyboardWindow in [[UIApplication sharedApplication] windows]) {
        
        // Now iterating over eacheach subview of the available windows
        for (UIView(UIView *keyboard in [keyboardWindow subviews]) {
            
            // Check to seesee if the description of the view we have referenced is UIKeyboard.UIKeyboard.
            // If so then wewe found the keyboard view that we were looking for.
             if([[keyboard description] hasPrefix:@"<UIKeyboard"] == YES) {
                 NSValue *v = [[notification[[notification userInfo] valueForKey:UIKeyboardBoundsUserInfoKey];
                CGRectCGRect kbBounds = [v CGRectValue];
                
                if(keyboardToolbarif(keyboardToolbar == nil) {
                     keyboardToolbar = [[UIToolbar alloc] initWithFrame:CGRectZero];
                     keyboardToolbar.barStyle = UIBarStyleBlackTranslucent;
                    
                     UIBarButtonItem *barButtonItem == [[UIBarButtonItem alloc] initWithTitle:@"Done" style:UIBarButtonItemStyleBordered target:self action:@selector(buttonClicked:)];
                    NSArray *items = [[NSArray alloc] initWithObjects:barButtonItem, nil];
                     [keyboardToolbar setItems:items];   
                     [items release];     
                }                 
                
                 [keyboardToolbar removeFromSuperview];
                 keyboardToolbar.frame = CGRectMake(0, 0, kbBounds.size.width, 30);
                 [keyboard addSubview:keyboardToolbar];
                 keyboard.bounds = CGRectMake(kbBounds.origin.x, kbBounds.origin.y, kbBounds.size.width, kbBounds.size.height + 60);60);
               
                 for(UIView* subKeyboard in [keyboard subviews])subviews]) {
                     if([[subKeyboard description] hasPrefix:@"<UIKeyboardImpl"] == YES) {
                         subKeyboard.bounds = CGRectMake(kbBounds.origin.x, kbBounds.origin.ykbBounds.origin.y - 30, kbBounds.size.width, kbBounds.size.height);   
                     }                        
                 }
             }
        }
    }
}

// 툴바 뷰내의 닫기 버튼이 눌려졌을 때 키보드 닫기
- (void)buttonClicked:(id)sender(void)buttonClicked:(id)sender
{   
    [diary resignFirstResponder];
}