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:btnItem
permittedArrowDirections: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:modalNAV
animated:YEScompletion:NULL];

}

@implementation PopTableViewController

- (void)viewDidLoad {

[superviewDidLoad];

self.title =@"浮动窗口";

self.view.backgroundColor = [UIColororangeColor];

}