iphone - 如何将多个自定义 View Controller 与导航 Controller 一起使用？

Question

基本上，我在 MainWindow.xib 中有两个 View Controller ，可以通过单击导航 Controller 中的条形按钮来查看它们。我希望这两个 View Controller 通过它们自己的 header 、实现和 xib 文件与 MainWindow.xib 分开，并且仍然使 MainWindow.xib 内部的导航 Controller 在它们中工作。

为了更好地理解它，请看下面的代码:

非常感谢!

TestAppDelegate.h

#import <UIKit/UIKit.h>

    @interface TestAppDelegate : NSObject <UIApplicationDelegate>
    {
        //Navigation Controller
        IBOutlet UINavigationController *navigationController;


        //View Controllers
        UIViewController *viewController;
        UIViewController *viewController2;
        UIViewController *viewController3;

    }

    @property (nonatomic, retain) IBOutlet UIWindow *window;

    //Navigation Controller
    @property (nonatomic, retain) IBOutlet UINavigationController *navigationController;


    //View Controllers
    @property (nonatomic, retain) IBOutlet UIViewController *viewController;
    @property (nonatomic, retain) IBOutlet UIViewController *viewController2;
    @property (nonatomic, retain) IBOutlet UIViewController *viewController3;


    - (IBAction)next;
    - (IBAction)next2;


    @end

TestAppDelegate.m

#import "TestAppDelegate.h"

@implementation TestAppDelegate

@synthesize window = _window;

//Navigation Controller
@synthesize navigationController;

//View Controllers
@synthesize viewController;
@synthesize viewController2;
@synthesize viewController3;


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.

    //Navigation Controller
    [self.window addSubview:[navigationController view]];
    [self.window makeKeyAndVisible];
    return YES;
}

- (void)applicationWillResignActive:(UIApplication *)application
{

}

- (void)applicationDidEnterBackground:(UIApplication *)application
{

}

- (void)applicationWillEnterForeground:(UIApplication *)application
{

}

- (void)applicationDidBecomeActive:(UIApplication *)application
{

}

- (void)applicationWillTerminate:(UIApplication *)application
{

}

- (void)dealloc
{

    [viewController release];
    [viewController2 release];
    [viewController3 release];

    [navigationController release];
    [_window release];
    [super dealloc];
}


- (IBAction)next {
    [navigationController pushViewController:viewController2 animated:YES];
}


- (IBAction)next2 {
    [navigationController pushViewController:viewController3 animated:YES];
}


@end

在 MainWindow.xib 内部:

http://i52.tinypic.com/10xa45f.png

Answer 1

我通常不碰 MainWindow.xib。我建议如下:

1. 通过转到 File > New > New File 创建一个 MainController，它将成为 UIViewController 子类的 MainView。这将为每个 ViewController 创建一个 .h/.m 和 nib 文件。为您的应用程序添加您想要的任何 UI。例如，添加两个按钮并将这些按钮连接到 MainController 中的 IBActions。这应该分别在您的 MainController.{h/m} 中声明和实现。

2. 然后以同样的方式创建另外两个 ViewController。

3. 这些 IBAction 的主体应该创建您的 ViewController 的实例，然后推送它们。

它看起来像这样:

YourViewController *yvc = [[YourViewController alloc] init];
[self.navigationController pushViewController:yvc animated:YES];
[yvc release];

最后，您必须在 AppDelegate 中推送 MainController 并将您的 NavigationController 添加到 View 中。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
     MainViewController *mvc = [[MainViewController alloc] init];
     UINavigationController *unvc = [[UINavigationController alloc] init];
     [unvc pushViewController:mvc animated:NO];
     [mvc release];
     [self.window addSubview:unvc.view];
     [self.window makeKeyAndVisible];
     return YES;
 }