Ios MultiplePagesViewController Usage

先上截图:

multiple_pages_view_controller_demo.gif

demo地址:MultiplePagesViewControllerDemo

demo解释

首先,创建MultiplePagesViewController的实例,并将其和其view加入到需要的view controller 中:

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[self.view addSubview:self.multiplePagesViewController.view];
[self addChildViewController:self.multiplePagesViewController];

其中,self.multiplePagesViewController对应的getter函数如下:

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- (MultiplePagesViewController*)multiplePagesViewController {
    if (!_multiplePagesViewController) {
        _multiplePagesViewController = [[MultiplePagesViewController alloc] init];
        _multiplePagesViewController.view.frame = self.view.frame;
        _multiplePagesViewController.delegate = self;
    }

    return _multiplePagesViewController;
}

并且,在viewDidLayoutSubviews中重新调整view的大小,以解决转屏等问题:

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- (void)viewDidLayoutSubviews {
    [super viewDidLayoutSubviews];

    self.multiplePagesViewController.view.frame = self.view.frame;
}

然后,只需要将你的UIViewController的实例加入self.multiplePagesViewController就可以了:

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- (void)addDefaultPageViewControllers {
    NSInteger vcCount = 3;
    for (NSInteger i = 0; i < vcCount; i++) {
        SampleViewController *svc = [[SampleViewController alloc] initWithText:[NSString stringWithFormat:@"%ld", i]];
        [self.multiplePagesViewController addViewController:svc];
    }
}

MultiplePagesViewController主要的两个接口如下:

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/**
 *  add a new <UIViewController*> instance
 *
 *  @param viewController
 */
- (void)addViewController:(UIViewController*)viewController;

/**
 *  remove an existing view controller by index
 *
 *  @param viewControllerIndex
 */
- (void)removeViewController:(NSUInteger)viewControllerIndex;

另外,可以在MultiplePagesViewController的父view controller中实现下面接口,当切换page的时候做些其它事情,比如更新view controller的title信息等。

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@protocol MultiplePagesViewControllerDelegate <NSObject>

- (void)pageChangedTo:(NSInteger)pageIndex;

@end