Modal UIViewController doesn't appear

I'm atte开发者_如何学Gompting to load a Modal View Controller (1st) from a Modal View Controller (2nd). While it sounds complicated, it probably isn't.

The 1st controller is actually a UIWebView which is initialized in the loadView method of the .m file:

- (void)loadView {

    // Initialize webview and add as a subview to LandscapeController's view
    myWebView = [[[UIWebView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]] autorelease];
    //CGRect forceframe = CGRectMake(0, 0, 480, 320);
    //myWebView = [[[UIWebView alloc] initWithFrame:forceframe] autorelease];
    myWebView.scalesPageToFit = YES;
    myWebView.autoresizesSubviews = YES;
    myWebView.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);  
    myWebView.delegate = self;
    self.view = myWebView; 
}

Then in viewDidLoad:

- (void)viewDidLoad {
    [super viewDidLoad];

    // Load HTML file as an NSURL request
    [self.myWebView loadHTMLString:updated_html baseURL:nil];

    // Invoke the covering modal view on condition
    if (some_condition) {
        landscapeCoverController = [[UIViewController alloc] initWithNibName:@"LandscapeCoverController" bundle:[NSBundle mainBundle]];

        [self presentModalViewController:landscapeCoverController animated:YES];
        [landscapeCoverController release]; 
    }   

The intended 2nd Modal View Controller (landscapeCoverController) is initialized with a NIB that I set up in IB.

My intended objective, is to conditionally cover up the UIWebView with the "LandscapeCoverController" view, which will have some buttons and interactivity which will result in the 2nd Modal View being dismissed.

Why isn't my landscapeCoverController loading? Any thoughts greatly appreciated!

Also...the 1st Modal View controller (LandscapeViewController) .h looks like:

@class LandscapeCoverController;

@interface LandscapeViewController : UIViewController <UIWebViewDelegate> {
    UIWebView *myWebView;

    LandscapeViewController *landscapeCoverController;
}

@property (nonatomic, retain) UIWebView *myWebView;

@property (nonatomic, retain) LandscapeViewController *landscapeCoverController; // Modal view controller

and...the 2nd Modal View controller (landscapeCoverController) viewDidLoad does nothing:

// NIB initialized in LandscapeViewController.m viewDidLoad:
- (void)viewDidLoad {
    [super viewDidLoad];

}

as I think the

landscapeCoverController = [[UIViewController alloc] initWithNibName:@"LandscapeCoverController" bundle:[NSBundle mainBundle]];
[self presentModalViewController:landscapeCoverController animated:YES];
[landscapeCoverController release]; 

statement should handle initialization and loading of the controller...

---

You are declaring landscapeCoverController as an instance of LandscapeViewController, and allocating it as a UIViewController. This is most likely your problem (probably the first one, as you aren't calling any methods specific to LandscapeViewController). Also, since landscapeCoverController is an instance variable, you don't really need to release it after presentModalViewController. Try to pick more dissimilar class names. It will save you from confusion like this in the future.