iPad开发专有API-UIPopoverViewController和UISplitViewController

    UINavigationController *navi;
    
    if ([[UIDevice currentDevice]userInterfaceIdiom]==UIUserInterfaceIdiomPad)
    {//Ipad设备
        navi = [[UINavigationController alloc]initWithRootViewController:[IpadViewController new]];
    }
    else
    {
        navi = [[UINavigationController alloc]initWithRootViewController:[IphoneViewController new]];
    }
    
    self.window.rootViewController = navi;

#import "IpadViewController.h"
#import "ListViewController.h"

@interface IpadViewController ()
{
    UIPopoverController *_leftPopController;
}
@end

@implementation IpadViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.title = @"Ipad";
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"Pop" style:UIBarButtonItemStyleDone target:self action:@selector(jumpLeftPop:)];
}

-(void)jumpLeftPop:(id)sender
{
    if (_leftPopController == nil)
    {
        ListViewController *list = [ListViewController new];
        UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:list];
        //漂浮视图控制器
        _leftPopController = [[UIPopoverController alloc]initWithContentViewController:nav];
        _leftPopController.delegate = self;
        _leftPopController.popoverContentSize = CGSizeMake(320, 300);
        list.pop = _leftPopController;
    }
    [_leftPopController presentPopoverFromBarButtonItem:sender permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];//模态显示
}

#import "ListViewController.h"

@interface ListViewController ()

@end

@implementation ListViewController


- (void)viewDidLoad
{
    self.title = @"选择你喜欢的颜色";
    _listTableView = [[UITableView alloc]initWithFrame:self.view.frame style:UITableViewStylePlain];
    _listTableView.delegate = self;
    _listTableView.dataSource = self;
    [self.view addSubview:_listTableView];
    
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    self.dataSourse = [[NSMutableArray alloc]initWithArray: @[@"red",@"yellow",@"blue",@"green",@"gray"]];
    
}

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return  self.dataSourse.count;
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *identifier = @"cellIdentifier";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
    if (cell == nil)
    {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];
    }
    cell.textLabel.text = [self.dataSourse objectAtIndex:indexPath.row];
    cell.selectionStyle = UITableViewCellSelectionStyleNone;
    return cell;
}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    [self.pop dismissPopoverAnimated:YES];
}

MasterViewController *master = [[MasterViewController alloc]init];
    UINavigationController *navMaster = [[UINavigationController alloc]initWithRootViewController:master];
    DetailViewController *detail = [[DetailViewController alloc]init];
    UINavigationController *navDetail = [[UINavigationController alloc]initWithRootViewController:detail];
    //分割视图控制器
    UISplitViewController *split = [[UISplitViewController alloc]init];
    split.viewControllers = @[navMaster,navDetail];
    split.delegate = detail;
    split.tabBarItem = detail.tabBarItem;
    self.window.rootViewController = split;

@interface DetailViewController : UIViewController<UIPopoverControllerDelegate,UISplitViewControllerDelegate>

@property(nonatomic,retain)UIPopoverController *pop;

@end

#import "DetailViewController.h"
#import "ModelViewController.h"

@interface DetailViewController ()
{
    ModelViewController *_modelController;
    UISegmentedControl *_segment;
}
@end

@implementation DetailViewController


- (void)viewDidLoad
{
    [super viewDidLoad];
    self.title = @"detail";
    self.view.backgroundColor = [UIColor whiteColor];
    
    _segment = [[UISegmentedControl alloc]initWithItems:@[@"one",@"two",@"three",@"four"]];
    _segment.frame = CGRectMake(350,100, 320, 40);
    _segment.selectedSegmentIndex = 0;
    [self.view addSubview:_segment];
    
    UIButton *nextBtn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    nextBtn.frame = CGRectMake(350, 200, 200, 40);
    [nextBtn setTitle:@"nextController" forState:0];
    [nextBtn addTarget:self action:@selector(nextContrller:) forControlEvents:7];
    [self.view addSubview:nextBtn];
    
}

-(void)nextContrller:(id)sender
{
    if (_modelController==nil)
    {
        _modelController = [[ModelViewController alloc]init];
    }
    _modelController.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;//转出动画样式
    switch (_segment.selectedSegmentIndex)
    {
        case 0:
        {
            _modelController.modalPresentationStyle = UIModalPresentationFullScreen;//全屏，默认样式，IPhone只能全屏
            break;
        }
        case 1:
        {
            _modelController.modalPresentationStyle = UIModalPresentationPageSheet;//竖屏全屏，横屏宽768
            break;
        }
        case 2:
        {
            _modelController.modalPresentationStyle = UIModalPresentationFormSheet;//不是全屏的，固定540*620
            break;
        }
        case 3:
        {
            _modelController.modalPresentationStyle = UIModalPresentationCurrentContext;//detailController控制器自身显示大小有关，全屏自身控制器
            break;
        }
        default:
            break;
    }
    
    [self presentViewController:_modelController animated:YES completion:nil];
}

#pragma mark 分割视图控制器DelegateMethods
- (void)splitViewController:(UISplitViewController *)svc
     willHideViewController:(UIViewController *)aViewController
          withBarButtonItem:(UIBarButtonItem *)barButtonItem
       forPopoverController:(UIPopoverController *)pc
{
    barButtonItem.title = @"主页列表";
    self.navigationItem.leftBarButtonItem = barButtonItem;
    self.pop = pc;
}

- (void)splitViewController: (UISplitViewController*)svc
     willShowViewController:(UIViewController *)aViewController
  invalidatingBarButtonItem:(UIBarButtonItem *)barButtonItem
{
    self.navigationItem.leftBarButtonItem = nil;
    self.pop = nil;
}
@end

@interface MasterViewController : UIViewController<UITableViewDataSource,UITableViewDelegate>
@property(nonatomic,retain)NSMutableArray *dataSourse;
@property(nonatomic,retain)UITableView *listTableView;
@end

#import "MasterViewController.h"

@interface MasterViewController ()

@end

@implementation MasterViewController

- (void)viewDidLoad
{
    self.title = @"master";
    _listTableView = [[UITableView alloc]initWithFrame:self.view.frame style:UITableViewStylePlain];
    _listTableView.delegate = self;
    _listTableView.dataSource = self;
    [self.view addSubview:_listTableView];
    [super viewDidLoad];
    self.dataSourse = [[NSMutableArray alloc]initWithArray: @[@"red",@"yellow",@"blue",@"green",@"gray"]];
}

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return  self.dataSourse.count;
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *identifier = @"cellIdentifier";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
    if (cell == nil)
    {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];
    }
    cell.textLabel.text = [self.dataSourse objectAtIndex:indexPath.row];
    cell.selectionStyle = UITableViewCellSelectionStyleNone;
    return cell;
}

@end