IOS学习 iPad控件：POP控件器，分割窗口、浮动窗口、模态视图的使用

@implementation AppDelegate

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

    // Override point for customization after application launch.

    

    UISplitViewController *splitVC = [[UISplitViewControlleralloc]init];

    MasterViewController *masterVC = [[MasterViewControlleralloc]init];

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

    

    DetailViewController *detailVC = [[DetailViewControlleralloc]init];

    UINavigationController *detailNAV = [[UINavigationControlleralloc]initWithRootViewController:detailVC];

    

    splitVC.viewControllers = @[masterNAV,detailNAV];

    self.window.rootViewController = splitVC;

    self.window.backgroundColor = [UIColorwhiteColor];

   

    splitVC.delegate = self;

    //是否通过手势控制浮动显示master窗口，默认为YES，窗口可拉出；NO，窗口不可拉出

    splitVC.presentsWithGesture =YES;

    

    return YES;

}

//隐藏master主窗口

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

    NSLog(@"隐藏主窗口");

}

// 显示master主窗口

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

    NSLog(@"显示主窗口");

}

// master主窗口作为浮动窗口显示

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

    NSLog(@"浮动主窗口");

}

//如果协议方法不实现，横屏显示master窗口，竖屏隐藏master窗口

//返回YES：隐藏master主窗口；NO：显示master主窗口

//- (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 =@"主窗口";

    self.view.backgroundColor = [UIColorredColor];

}

@implementation DetailViewController

- (void)viewDidLoad {

    [superviewDidLoad];

    // Do any additional setup after loading the view.

    self.title =@"详情窗口";

    self.view.backgroundColor = [UIColoryellowColor];

    

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

    self.navigationItem.leftBarButtonItem = leftBtn;

    

    PopTableViewController *popTVC = [[PopTableViewControlleralloc]init];

    //如果浮云窗口需要导航栏，即创建导航控制器

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

    

    //创建浮动窗口，UIPopoverController继承于NSObject，不是视图控制器

    _popCtrl = [[UIPopoverControlleralloc]initWithContentViewController:popNAV]; //需将视图控制器放入pop窗口中

    

    //设置浮云窗口大小

    _popCtrl.popoverContentSize =CGSizeMake(320,500);

    

    UIBarButtonItem *rightBtn = [[UIBarButtonItemalloc]initWithTitle:@"模态窗口"style:UIBarButtonItemStyleBorderedtarget:selfaction:@selector(showModal:)];

    self.navigationItem.rightBarButtonItem = rightBtn;

}

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

    //判断pop窗口是显示还是隐藏

    if (_popCtrl.popoverVisible) {

        [_popCtrldismissPopoverAnimated:YES];//如果显示，让其隐藏

    }else {

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

    }

}

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

    UIViewController *modalVC = [[UIViewControlleralloc]init];

    modalVC.title = @"模态窗口";

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

    modalNAV.modalPresentationStyle =UIModalPresentationFormSheet;

    /*UIModalPresentationFullScreen = 0,  默认全屏

     UIModalPresentationPageSheet 竖屏时，全屏显示，横屏时，中间显示

     UIModalPresentationFormSheet 在屏幕中心显示

     UIModalPresentationCurrentContext 在触发的控制器上显示 */

    [selfpresentViewController:modalNAVanimated:YEScompletion:NULL];

}

@implementation PopTableViewController

- (void)viewDidLoad {

    [superviewDidLoad];

    self.title =@"浮动窗口";

    self.view.backgroundColor = [UIColororangeColor];

}