iphone - 子类化UIWindow

我只是试图将UIWindow子类化，以便可以拦截一些通知。除了下面列出的代码，我还进入MainWindow.xib并将UIWindow对象更新为我的子类。它加载良好，问题是我的标签栏上的标签没有响应(在下面的示例中，我仅添加了一个标签，但是在我的应用中，我有多个标签(不是问题))。谁能看到我可能做错了什么？谢谢。

UISubclassedWindow.h

#import <UIKit/UIKit.h>

@interface UISubclassedWindow : UIWindow
{

}

@end

UISubclassedWindow.m

    #import "UISubclassedWindow.h"

    @implementation UISubclassedWindow

- (id) initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self)
    {
        NSLog(@"init");
    }
    return self;
}

    - (void)makeKeyAndVisible
    {
        [super makeKeyAndVisible];
        NSLog(@"makeKeyAndVisible");
    }

    - (void)becomeKeyWindow
    {
        [super becomeKeyWindow];
        NSLog(@"becomeKeyWindow");

    }

    - (void)makeKeyWindow
    {
        [super makeKeyWindow];
        NSLog(@"makekeyWindow");
    }

    - (void)sendEvent:(UIEvent *)event
    {
    }

    - (void)dealloc
    {
        [super dealloc];
    }

    @end

AppDelegate.h

进口

@class UISubclassedWindow;

@interface My_AppAppDelegate : NSObject <UIApplicationDelegate>
{
    UISubclassedWindow *window;
}

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

@end

AppDelegate.m

@synthesize window;

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    UITabBarController *tabBarController = [[UITabBarController alloc] init];

    MainViewController *mainViewController = [[MainViewController alloc] initWithViewType: 0];
    UINavigationController *mainNavigationController = [[UINavigationController alloc] initWithRootViewController: mainViewController];
    mainNavigationController.title = @"Main";
    [[mainNavigationController navigationBar] setBarStyle: UIBarStyleBlack];

    [tabBarController setViewControllers: [NSArray arrayWithObjects: mainNavigationController,  nil]];

    [self.window setRootViewController: tabBarController];
    [self.window makeKeyAndVisible];

    [mainViewController release];
    [mainNavigationController release];
    [tabBarController release];

    return YES;
}

最佳答案

问题是我包括了UIWindows-(void)sendEvent:(UIEvent *)event方法，但是没有对其调用super。我打电话给它，一切都固定了。