@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

// Override point for customization after application launch.

UISplitViewController *splitVC = [[UISplitViewControlleralloc]init];

MasterViewController *masterVC = [[

UINavigationController *masterNAV = [[UINavigationControlleralloc]initWithRootViewController:masterVC];

DetailViewController *detailVC = [[DetailViewControlleralloc]init];

UINavigationController *detailNAV = [[UINavigationControlleralloc]initWithRootViewController

    splitVC.viewControllers = @[masterNAV,detailNAV];

self.window.rootViewController = splitVC;

self.window.backgroundColor = [UIColorwhiteColor];

    splitVC.delegate = self;

//是否通過手勢控制浮動顯示master視窗，預設為YES，視窗可拉出；NO，視窗不可拉出

    splitVC.presentsWithGesture =YES;

return YES;

}

//隱藏

- (void)splitViewController:(UISplitViewController *)svc willHideViewController:(UIViewController *)aViewController withBarButtonItem:(UIBarButtonItem *)barButtonItem forPopoverController:(UIPopoverController *)pc {

NSLog(@"隱藏主視窗");

}

// 顯示master主視窗

- (void)splitViewController:(UISplitViewController *)svc willShowViewController:(UIViewController *)aViewController invalidatingBarButtonItem:(UIBarButtonItem *)barButtonItem {

NSLog(@"顯示主視窗");

}

// master主視窗作為浮動視窗顯示

- (void)splitViewController:(UISplitViewController *)svc popoverController:(UIPopoverController *)pc willPresentViewController:(UIViewController *)aViewController{

NSLog(@"浮動主視窗");

}

//如果協議方法不實現，橫屏顯示master視窗，豎屏隱藏master視窗

//返回YES：隱藏master主視窗；NO：顯示master主視窗

//- (BOOL)splitViewController:(UISplitViewController *)svc shouldHideViewController:(UIViewController *)vc inOrientation:(UIInterfaceOrientation)orientation{

//    return YES;

//}

@implementation MasterViewController

- (void)viewDidLoad {

    [superviewDidLoad];

// Do any additional setup after loading the view.

    self.title =@"主視窗";

self.view.backgroundColor = [UIColorredColor];

}

@implementation DetailViewController

- (void)viewDidLoad {

    [superviewDidLoad];

// Do any additional setup after loading the view.

    self.title =@"詳情視窗";

self.view.backgroundColor = [UIColoryellowColor];

UIBarButtonItem *leftBtn = [[UIBarButtonItemalloc]initWithTitle:@"pop視窗"style:UIBarButtonItemStyleBorderedtarget:selfaction:@selector(clickAction:)];

self.navigationItem.leftBarButtonItem = leftBtn;

PopTableViewController *popTVC = [[PopTableViewControlleralloc]init];

//如果浮雲視窗需要導航欄，即建立導航控制器

UINavigationController *popNAV = [[UINavigationControlleralloc]initWithRootViewController:popTVC];

//建立浮動視窗，UIPopoverController繼承於NSObject，不是檢視控制器

_popCtrl = [[UIPopoverControlleralloc]initWithContentViewController:popNAV]; //需將檢視控制器放入pop視窗中

//設定浮雲視窗大小

_popCtrl.popoverContentSize =CGSizeMake(320,500);

UIBarButtonItem *rightBtn = [[UIBarButtonItemalloc]initWithTitle:@"模態視窗"style:UIBarButtonItemStyleBorderedtarget:selfaction:@selector(showModal:)];

self.navigationItem.rightBarButtonItem = rightBtn;

}

-(void)clickAction:(UIBarButtonItem *)btnItem{

//判斷pop視窗是顯示還是隱藏

if (_popCtrl.popoverVisible) {

        [_popCtrldismissPopoverAnimated:YES];//如果顯示，讓其隱藏

    }else {

        [_popCtrlpresentPopoverFromBarButtonItem:btnItem permittedArrowDirections:UIPopoverArrowDirectionAnyanimated:YES];// UIPopoverArrowDirectionAny 任何方向

    }

}

-(void)showModal:(UIBarButtonItem *)btnItem {

UIViewController *modalVC = [[UIViewControlleralloc]init];

    modalVC.title = @"模態視窗";

UINavigationController *modalNAV = [[UINavigationControlleralloc]initWithRootViewController:modalVC];

    modalNAV.modalPresentationStyle =UIModalPresentationFormSheet;

/*UIModalPresentationFullScreen = 0,  預設全屏

     UIModalPresentationPageSheet 豎屏時，全屏顯示，橫屏時，中間顯示

     UIModalPresentationFormSheet 在螢幕中心顯示

     UIModalPresentationCurrentContext 在觸發的控制器上顯示 */

    [selfpresentViewController:modalNAV animated:YEScompletion:NULL];

}

@implementation PopTableViewController

- (void)viewDidLoad {

    [superviewDidLoad];

    self.title =@"浮動視窗";

self.view.backgroundColor = [UIColororangeColor];

}