使用拆分視圖

拆分視圖是iPad特定的容器管理兩個視圖控制器并排，一個在左，詳細視圖控制器在其右側(cè)的主視圖控制器。

重要的屬性

• delegate

• viewControllers

示例代碼和步驟

1. 創(chuàng)建一個新的項目，并選擇 Master Detail Application，而不是基于視圖的應用程序，然后單擊下一步，為項目名稱，選擇“創(chuàng)建”。

2. 默認情況下，創(chuàng)建一個簡單的拆分視圖控制器在主表視圖。

3. 創(chuàng)建的文件從我們基于視圖的應用程序可能有點不同。在這里，我們有以下的為我們創(chuàng)建的文件。

• AppDelegate.h

• AppDelegate.m

• DetailViewController.h

• DetailViewController.m

• DetailViewController.xib

• MasterViewController.h

• MasterViewController.m

• MasterViewController.xib

4. AppDelegate.h 內(nèi)容如下：

#import <UIKit/UIKit.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;

@property (strong, nonatomic) UISplitViewController *splitViewController;

@end

5.  didFinishLaunchingWithOptions 方法在 AppDelegate.m 如下：

   - (BOOL)application:(UIApplication *)application 
   didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
   self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen]
   bounds]];
    // Override yiibai for customization after application launch.
    MasterViewController *masterViewController = [[MasterViewController
    alloc] initWithNibName:@"MasterViewController" bundle:nil];
    UINavigationController *masterNavigationController = 
    [[UINavigationController alloc] initWithRootViewController:
    masterViewController];

    DetailViewController *detailViewController = 
    [[DetailViewController alloc] initWithNibName:@"DetailViewController" 
    bundle:nil];
    UINavigationController *detailNavigationController = 
    [[UINavigationController alloc] initWithRootViewController:
    detailViewController];

    masterViewController.detailViewController = detailViewController;

    self.splitViewController = [[UISplitViewController alloc] init];
    self.splitViewController.delegate = detailViewController;
    self.splitViewController.viewControllers =
    @[masterNavigationController, detailNavigationController];
    self.window.rootViewController = self.splitViewController;
    [self.window makeKeyAndVisible];
    return YES;
}

6. MasterViewController.h 如下：

#import <UIKit/UIKit.h>

@class DetailViewController;

@interface MasterViewController : UITableViewController

@property (strong, nonatomic) DetailViewController *detailViewController;

@end

7. MasterViewController.m 內(nèi)容如下：

#import "MasterViewController.h"

#import "DetailViewController.h"

@interface MasterViewController () {
    NSMutableArray *_objects;
}
@end

@implementation MasterViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)
  nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        self.title = NSLocalizedString(@"Master", @"Master");
        self.clearsSelectionOnViewWillAppear = NO;
        self.contentSizeForViewInPopover = CGSizeMake(320.0, 600.0);
    }
    return self;
}
							
- (void)viewDidLoad
{
    [super viewDidLoad];
    self.navigationItem.leftBarButtonItem = self.editButtonItem;

    UIBarButtonItem *addButton = [[UIBarButtonItem alloc] 
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