#import "MainViewController.h"

@interface MainViewController ()

@end

@implementation MainViewController

- (void)viewDidLoad

{

    [super viewDidLoad];

    UIView *view1 = [[UIView alloc]initWithFrame:[[UIScreen mainScreen] bounds]];

    view1.backgroundColor = [UIColor blueColor];

    UIView *view2 = [[UIView alloc]initWithFrame:[[UIScreen mainScreen] bounds]];

    view2.backgroundColor = [UIColor yellowColor];

    [self.view addSubview:view1];

    [self.view addSubview:view2];

}

-(void) changeView

{

    NSLog(@"change view");

    CGContextRef context = UIGraphicsGetCurrentContext();

    [UIView beginAnimations:nil context:context];

    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];

    [UIView setAnimationDuration:1.0];

    [UIView setAnimationTransition: UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES];

    [self.view exchangeSubviewAtIndex: withSubviewAtIndex:];

    [UIView setAnimationDelegate:self];

    [UIView setAnimationDidStopSelector:nil];

    [UIView commitAnimations];

}

-(void) changeView2

{

    CATransition *animation = [CATransition animation];

    [animation setDuration:1.25f];

    [animation setTimingFunction:[CAMediaTimingFunction

                                  functionWithName:kCAMediaTimingFunctionEaseIn]];

    [animation setType:kCATransitionReveal];

    [animation setSubtype: kCATransitionFromRight];

    [self.view.layer addAnimation:animation forKey:@"Reveal"];

    [self.view exchangeSubviewAtIndex: withSubviewAtIndex:];

    [CATransaction commit];

}

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

{

    [self changeView];

}

@end