Question

有人能指出我创建自定义视图控制器作为容器视图控制器的任何好例子吗？我能找到的唯一文件是UIViewController Class Reference中的几段。我觉得我需要比这更多的信息，一个示例实现会很好。谷歌几乎什么都没有发现。

我对这个方法特别感兴趣：

transitionFromViewController:toViewController:duration:options:animations:completion:

Answer 1

到目前为止，我发现的最好的事情是WWDC 2011 Session Video Session 102 - Implementing UIViewController Containment。

Answer 2

除了已经提及的超级加密的WWDC会话视频Session 102 - Implementing UIViewController Containment之外，Apple WWDC 2012 session on "The Evolution of View Controllers on iOS"也涵盖了此主题，示例代码是示例代码包的一部分：

https://developer.apple.com/devcenter/download.action?path=/wwdc_2012/wwdc_2012_sample_code/wwdc_2012_session_code.dmg

这里还有一个例子： https://github.com/toolmanGitHub/stackedViewControllers

Answer 3

- (void)viewDidLoad{
    [super viewDidLoad];

    // I put self in a Navigation VC so we can use its right navigationbar 
    // item for triggering the transition
    self.navigationItem.rightBarButtonItem = 
     [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemEdit 
                                                    target:self 
                                                    action:@selector(button:)] 
                                                                  autorelease];

    // create test1 and test2 instance (subclass UIViewController and 
    // also need to define their own nibs)
    vc1 = [[test1 alloc]initWithNibName:@"test1" bundle:nil];
    vc2 = [[test2 alloc]initWithNibName:@"test2" bundle:nil];

    //add to the container vc which is self    
    [self addChildViewController:vc1];
    [self addChildViewController:vc2];

    //the entry view (will be removed from it superview later by the api)
    [self.view addSubview:vc1.view];
}

此IBAction触发两个VC之间的转换：

-(IBAction)button:(id)sender {
    [self transitionFromViewController:vc1 
                      toViewController:vc2 
                              duration:0.5    
                               options:UIViewAnimationOptionTransitionCurlDown 
                            animations:nil 
                            completion:nil];
}