?UINavigationController?*nc = [self.splitViewController.viewControllers ?lastObject];

? ??self.detailViewController?= (SplitViewDetailViewController?*)[nc?topViewController];

有一個splitViewController屬性，其viewControllers為一個含兩個ViewController的數組，0-left，1-right in landscape

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看文檔：https://developer.apple.com/library/ios/#documentation/UIKit/Reference/UISplitViewController_class/Reference/Reference.html#//apple_ref/doc/uid/TP40009277

The array in this property must contain exactly two view controllers. The view controllers are presented left-to-right in the split view interface when it is in a landscape orientation. Thus, the view controller at index 0 is displayed on the left side and the view controller at index 1 is displayed on the right side of the interface.

The first view controller in this array is typically hidden when the device is in a portrait orientation. Assign a delegate object to the receiver if you want to coordinate the display of this view controller using a popover.

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創建過程：

在StoryBoard中讓Master Detail都Embed in navi..

然后先在AppDelegate的

didFinishLaunchingWithOptions中添加代碼，使得splitView的delegate為DetailViewController

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {// Override point for customization after application launch.UISplitViewController *splitViewController = (UISplitViewController *)self.window.rootViewController;UINavigationController *navigationController = [splitViewController.viewControllers lastObject];splitViewController.delegate = (id)navigationController.topViewController;return YES; }

在MasterVC中取得DetailVC

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@property?(strong,?nonatomic)?DetailViewController?*detailViewController;

viewDidLoad：

? ??UINavigationController?*nc = [self.splitViewController.viewControllers ?lastObject];

? ??self.detailViewController?= (DetailViewController?*)[nc?topViewController];

?

self.detailViewController.detailItem?= ?xxxx；

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在DetailVC中，當然要遵循<UISplitViewControllerDelegate>

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@property?(strong,?nonatomic)?id?detailItem;//in .h

@property?(strong, nonatomic)?UIPopoverController?*masterPopoverController;//in .m

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- (void)setDetailItem:(id)newDetailItem { ? ? ? ?

? ??// Update the view.??

}

#pragma mark - Split view- (void)splitViewController:(UISplitViewController *)splitController willHideViewController:(UIViewController *)viewController withBarButtonItem:(UIBarButtonItem *)barButtonItem forPopoverController:(UIPopoverController *)popoverController {barButtonItem.title = @"列表";[self.navigationItem setLeftBarButtonItem:barButtonItem animated:YES];self.masterPopoverController = popoverController; }- (void)splitViewController:(UISplitViewController *)splitController willShowViewController:(UIViewController *)viewController invalidatingBarButtonItem:(UIBarButtonItem *)barButtonItem {// Called when the view is shown again in the split view, invalidating the button and popover controller. [self.navigationItem setLeftBarButtonItem:nil animated:YES];self.masterPopoverController = nil; }

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? ? 若DetailVC不止是一個ViewController，我們可以使MasterVC遵循<UISplitViewControllerDelegate>,實現其委托方法；讓DetailVC遵循自定義的協議，其功能是使在land和port時隱藏\顯示 調出popover的barItem

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然后在tableView:didSelectRowAtIndexPath： 中實例化相應的DetailVC，

? ??UIStoryboard?*storyboard = [UIStoryboard?storyboardWithName:@"Storyboard"?bundle:nil];

? ??FirstDetailViewController *newDetailViewController = [storyboard instantiateViewControllerWithIdentifier:@"v1"];

? ? detailViewController = newDetailViewController;

?當然也可以通過StoryBoard中的Segue代替實現實例化功能

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本文轉自老Zhan博客園博客，原文鏈接：http://www.cnblogs.com/mybkn/archive/2012/05/12/2497266.html，如需轉載請自行聯系原作者

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