- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    UIView *magentaView = [[UIView alloc] initWithFrame:self.view.bounds];
    magentaView.backgroundColor = [UIColor magentaColor];
    
    [self.view addSubview:magentaView];
   
    NSLog(@"====%@",[self.view subviews]);
   
    UIView* grayView = [[UIView alloc] initWithFrame:self.view.bounds];
    grayView.backgroundColor = [UIColor lightGrayColor];
    [self.view addSubview:grayView];
   
    NSArray* bnTitleArray = [NSArray arrayWithObjects:
                             @"添加" , @"翻页" , @"移入" , @"揭开" ,
                             @"立方体" , @"收缩" , @"翻转" , @"水波" , nil];
    NSMutableArray* bnArray = [[NSMutableArray alloc] init];
    // 获取屏幕的内部高度
    CGFloat totalHeight = [UIScreen mainScreen].bounds.size.height;
    // 创建8个按钮，并将按钮添加到NSMutableArray集合中
    for (int i = 0 ; i < 8 ; i++)
    {
        UIButton* bn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
        [bn setTitle:[bnTitleArray objectAtIndex:i]
            forState:UIControlStateNormal];
        NSInteger row = i / 4;
        NSInteger col = i % 4;
        bn.frame = CGRectMake(5 + col * 80
                              , totalHeight - (2 - row) * 45 - 20 , 70 , 35);
        [self.view addSubview:bn];
        [bnArray addObject:bn];
    }
    // 为8个按钮分别绑定不同的事件处理方法
    [[bnArray objectAtIndex:0] addTarget:self action:@selector(add:)
                        forControlEvents:UIControlEventTouchUpInside];
    [[bnArray objectAtIndex:1] addTarget:self action:@selector(curl:)
                        forControlEvents:UIControlEventTouchUpInside];
    [[bnArray objectAtIndex:2] addTarget:self action:@selector(move:)
                        forControlEvents:UIControlEventTouchUpInside];
    [[bnArray objectAtIndex:3] addTarget:self action:@selector(reveal:)
                        forControlEvents:UIControlEventTouchUpInside];
    [[bnArray objectAtIndex:4] addTarget:self action:@selector(cube:)
                        forControlEvents:UIControlEventTouchUpInside];
    [[bnArray objectAtIndex:5] addTarget:self action:@selector(suck:)
                        forControlEvents:UIControlEventTouchUpInside];
    [[bnArray objectAtIndex:6] addTarget:self action:@selector(oglFlip:)
                        forControlEvents:UIControlEventTouchUpInside];
    [[bnArray objectAtIndex:7] addTarget:self action:@selector(ripple:)
                        forControlEvents:UIControlEventTouchUpInside];
    NSLog(@"~~~~~~~%@" , [[self.view.subviews objectAtIndex:2] backgroundColor]);
    NSLog(@"~~~~~~~%@" , [[self.view.subviews objectAtIndex:3] backgroundColor]);
}

-(void) add:(id)sender
{
    // 开始执行动画
    [UIView beginAnimations:@"animation" context:nil];
   
    [UIView setAnimationDuration:3.0f];
    // 控制UIView内过渡动画的类型
    [UIView setAnimationTransition:UIViewAnimationTransitionCurlDown
                           forView:self.view cache:YES];
    // 设置动画的变化曲线
    [UIView setAnimationCurve:UIViewAnimationCurveLinear];
    // 提交动画
    [UIView commitAnimations];
}
-(void) curl:(id)sender
{
    // 开始执行动画
    [UIView beginAnimations:@"animation" context:nil];
    [UIView setAnimationDuration:1.0f];
    // 控制UIView内过渡动画的类型
    [UIView setAnimationTransition:UIViewAnimationTransitionCurlUp
                           forView:self.view cache:YES];
    // 设置动画的变化曲线
    [UIView setAnimationCurve:UIViewAnimationCurveLinear];
    // 交换视图控制器所显示的UIView中中2个子控件位置
    [self.view exchangeSubviewAtIndex:3 withSubviewAtIndex:2];
   
    [UIView commitAnimations];
}
-(void) move:(id)sender
{
    CATransition *transition = [CATransition animation];
    transition.duration = 2.0f;
    // 使用kCATransitionMoveIn动画
    transition.type = kCATransitionMoveIn;
    // 指定动画方向，从左向右
    transition.subtype = kCATransitionFromLeft;
    [self.view.layer addAnimation:transition forKey:@"animation"];
    [self.view exchangeSubviewAtIndex:2 withSubviewAtIndex:3];
}
-(void) reveal:(id)sender
{
    CATransition *transition = [CATransition animation];
    transition.duration = 2.0f;
    // 使用kCATransitionReveal动画
    transition.type = kCATransitionReveal;
    // 指定动画方向，从上到下
    transition.subtype = kCATransitionFromTop;
    [self.view.layer addAnimation:transition forKey:@"animation"];
    // 交换视图控制器所显示的UIView中中2个子控件位置
    [self.view exchangeSubviewAtIndex:2 withSubviewAtIndex:3];
}
-(void) cube:(id)sender
{
    CATransition *transition = [CATransition animation];
    transition.duration = 2.0f;
    // 使用@"cube"动画
    transition.type = @"cube";
    // 指定动画方向，从左到右
    transition.subtype = kCATransitionFromLeft;
    [self.view.layer addAnimation:transition forKey:@"animation"];
    // 交换视图控制器所显示的UIView中中2个子控件位置
    [self.view exchangeSubviewAtIndex:2 withSubviewAtIndex:3];
}
-(void) suck:(id)sender
{
    CATransition *transition = [CATransition animation];
    transition.duration = 2.0f;
    // 使用@"suck"动画, 该动画与动画方向无关
    transition.type = @"suckEffect";
    [self.view.layer addAnimation:transition forKey:@"animation"];
    // 交换视图控制器所显示的UIView中中2个子控件位置
    [self.view exchangeSubviewAtIndex:2 withSubviewAtIndex:3];
}
-(void) oglFlip:(id)sender
{
    CATransition *transition = [CATransition animation];
    transition.duration = 0.5f;
    // 使用@"oglFlip"动画
    transition.type = @"oglFlip";
    // 指定动画方向为上下翻转
    transition.subtype = kCATransitionFromLeft;
    [self.view.layer addAnimation:transition forKey:@"animation"];
    // 交换视图控制器所显示的UIView中中2个子控件位置
    [self.view exchangeSubviewAtIndex:1 withSubviewAtIndex:3];
}
-(void) ripple:(id)sender
{
    CATransition *transition = [CATransition animation];
    transition.duration = 2.0f;
    // 使用@"rippleEffect"动画，该动画与方向无关
    transition.type = @"rippleEffect";
    [self.view.layer addAnimation:transition forKey:@"animation"];
    // 交换视图控制器所显示的UIView中中2个子控件位置
    [self.view exchangeSubviewAtIndex:2 withSubviewAtIndex:3];
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}