[ios]시간, 애니메이션-그럼컷넘기기

// 애니메이션

- (void)viewDidLoad {

    imgView.animationImages=[NSArray arrayWithObjects:  

                             [UIImage imageNamed:@"lori.png"],

                             [UIImage imageNamed:@"miranda.png"],

                             [UIImage imageNamed:@"taylor.png"],

                             [UIImage imageNamed:@"ingrid.png"],

                             [UIImage imageNamed:@"kasey.png"], 

                             [UIImage imageNamed:@"wreckers.png"], nil];

    imgView.animationDuration=20.0;

    imgView.animationRepeatCount=0;

    [imgView startAnimating];

    [self.view addSubview:imgView];

    [imgView release];

    //The timers time interval is the imageViews animation duration devided by the number of images in the animationImages array. 20/5 = 4 

    NSTimer *timer = [NSTimer timerWithTimeInterval:4.0 

                                              target:self 

                                            selector:@selector(onTimer) 

                                            userInfo:nil 

                                             repeats:YES];

    [[NSRunLoop currentRunLoop] addTimer:timer forMode:NSDefaultRunLoopMode];

    [timer fire];

    [super viewDidLoad];

}

//It is important that the animation durations within these animation blocks add up to 4 

//(the time interval of the timer). If you change the time interval then the time intervals 

//in these blocks must also be changed to refelect the amount of time an image is displayed. 

//Failing to do this will mean your fading animation will go out of phase with the switching of images.   

-(void)onTimer{

        [UIView animateWithDuration:3.0 animations:^{

            imgView.alpha = 0.0; 

        }];

        [UIView animateWithDuration:1.0 animations:^{

            imgView.alpha = 1.0; 

        }];

    }

------------- 시간비교

    //현재시간

    NSDate* dateFrom = [NSDate date];

    NSCalendar* calendar = [NSCalendar currentCalendar];

    NSDateComponents* components = [calendar components:NSYearCalendarUnit |

                                    NSMonthCalendarUnit |

                                    NSDayCalendarUnit |

                                    NSHourCalendarUnit |

                                    NSMinuteCalendarUnit |

                                    NSSecondCalendarUnit fromDate:dateFrom];

    

    int year = [components year];

    int month = [components month];

    int day = [components day];

    int hour = [components hour];

    int minute = [components minute];

    int second = [components second];

    

    

    

    NSDate *date;

    NSDateComponents *com;

    NSDateFormatter *formatter;

    

    com = [[NSDateComponents alloc] init];

    [com setYear:year];

    [com setMonth:month];

    [com setDay:day];

    [com setHour:hour];

    [com setMinute:minute];

    [com setSecond:second];

    

    date1 = [[NSCalendar currentCalendar] dateFromComponents:com];

    formatter = [[NSDateFormatter alloc] init];

    [formatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];

    NSLog(@"now time%@", [formatter stringFromDate:date1]);

    

    com = [[NSDateComponents alloc] init];

    [com setYear:year];

    [com setMonth:month];

    [com setDay:day];

    [com setHour:hour];

    [com setMinute:5];

    [com setSecond:second];

    

    date2 = [[NSCalendar currentCalendar] dateFromComponents:com];

    NSLog(@"now time%@", [formatter stringFromDate:date2]);

    

    NSTimeInterval secondsBetweenDates = [date2 timeIntervalSinceDate:date1];

    NSLog(@"NSTimeInterval%f", secondsBetweenDates);    int year = [components year];

    int month = [components month];

    int day = [components day];

    int hour = [components hour];

    int minute = [components minute];

    int second = [components second];

    

    NSLog(@"minute = %i",minute);