使用UIPageControl在视图控制器之间导航

Question

我有

@property (weak, nonatomic) IBOutlet UIPageControl *pageCountControl;

这是我的代码。

在viewDidLoad内部

// I set the number of pages to 5.

self.pageCountControl.numberOfPages = 5;

// the main view will be the home page so I set it to the index 0

self.pageCountControl.currentPage = 0;

// Then I think that I have to dd the UIPageControl as subview to the current view.

    [self.view addSubview:_pageCountControl];
    [self.pageCountControl addTarget:self action:@selector(pageTurn:) forControlEvents:UIControlEventValueChanged];
}


// here is my question. I have a method that will be calling when the user moved through the pages. Do I have to create that page like the following code?

-(void)pageTurn:(UIPageControl *) page
{
    int c = page.currentPage;

    if(c==0)
    {
// here

        MainViewController *mainViewController = [self.childViewControllers objectAtIndex:self.pageCountControl.currentPage];
    }
// and here
        else if(c==1)
        {
            MainViewController *mainViewController =[self.childViewControllers objectAtIndex:c];
            SecondViewController *secondViewController = [self.childViewControllers objectAtIndex:self.pageCountControl.currentPage];
        }
        else if(c==2)
    {
            SecondViewController *secondViewController =[self.childViewControllers objectAtIndex:c];
            ThirdViewController *thirdViewController = [self.childViewControllers objectAtIndex:self.pageCountControl.currentPage];
            }
    }

我找到了一些关于使用UIPageControl在图像之间移动的教程，但是没有关于使用ViewControllers的教程。 我不确定我做对了吗？ 谢谢。 后