我刚刚“尝试”浏览PageControl的苹果教程。现在我应该指出,我并没有完全理解这一点,它似乎很复杂,所以如果这个问题非常明显,我道歉。
我注意到苹果从.plist加载了它的内容。如果你拥有的只有一个UILabel和一个UIImageView,那就好了又简单但是如果我做了更复杂的事情呢?如果我希望每个“页面”都有14个不同的变量,每个“页面”上的一个按钮,根据您所在的页面执行其他操作,该怎么办...
所以我的问题是这个(也许这首先做起来并不聪明): 有没有什么可以对它进行编码,所以当用户切换页面时,它会加载一个不同的控制器,该控制器恰好有自己的.Xib文件和视图已经在界面构建器中创建了?
谢谢
答案 0 :(得分:1)
是的。您将使用UIPageViewController
。 UIPageViewController
具有根据用户是向左还是向右滑动而调用的数据源和委托方法。它基本上说“嘿,给我UIViewController我应该在这个UIViewController之前或之后显示。”
以下是一个示例:
<强> MyPageViewController.h 强>:
@interface MyPageViewController : UIPageViewController <UIPageViewControllerDataSource, UIPageViewControllerDelegate>
@end
<强> MyPageViewController.m 强>:
#import "MyPageViewController.h"
@implementation MyPageViewController
- (id)init
{
self = [self initWithTransitionStyle:UIPageViewControllerTransitionStyleScroll
navigationOrientation:UIPageViewControllerNavigationOrientationHorizontal
options:nil];
if (self) {
self.dataSource = self;
self.delegate = self;
self.title = @"Some title";
// set the initial view controller
[self setViewControllers:@[[[SomeViewController alloc] init]]
direction:UIPageViewControllerNavigationDirectionForward
animated:NO
completion:NULL];
}
return self;
}
#pragma mark - UIPageViewController DataSource methods
- (UIViewController *)pageViewController:(UIPageViewController *)pvc
viewControllerBeforeViewController:(UIViewController *)vc
{
// here you put some logic to determine which view controller to return.
// You either init the view controller here or return one that you are holding on to
// in a variable or array or something.
// When you are "at the end", return nil
return nil;
}
- (UIViewController *)pageViewController:(UIPageViewController *)pvc
viewControllerAfterViewController:(UIViewController *)vc
{
// here you put some logic to determine which view controller to return.
// You either init the view controller here or return one that you are holding on to
// in a variable or array or something.
// When you are "at the end", return nil
return nil;
}
@end
就是这样!