Question

I have an application which is bascially a TabBar where the tabs are UINavigationControllers which move back and forth between different ViewControllers containing UIWebViews. My problem is that although I can click on the buttons for the UIWebViews, I can’t scroll the content when it is larger than the screen.

Am creating the TabController

tabBarController = [[MainTabBarController alloc] init];
[tabBarController setDelegate:self];

When switching between tabs, I have this code:

WebViewController *wvc = [[WebViewController alloc] initWithNibName:@"WebController" bundle:nil];
UIWebView *wv = [[UIWebView alloc] init];

[wv setUserInteractionEnabled:YES];
[wvc setTitle:[nc title]];
[wv setDelegate:self];
[wv loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:requestURL]]];
[wvc setWebpage:wv];
[wvc setView:wv];
[nc pushViewController:wvc animated:NO];
NSLog(@"NC.viewcontroller count: %d", [nc.viewControllers count]);
[nc setLastURL:requestURL];
[wvc startLoaderIndicator];

[wv release];
[wvc release];
requestOk = YES;

And when a link within one of the UIWebViews is clicked, I have this:

ItemNavigationController *nc = (ItemNavigationController *)[tabBarController selectedViewController];
WebViewController *wvc = [[WebViewController alloc] initWithNibName:@"WebController" bundle:nil];
UIWebView *wv = [[UIWebView alloc] initWithFrame:CGRectMake(0,0,320,480)];
//wvc.view = wvc.sView;
[wvc setTitle:[nc title]];
[wv setDelegate:self];
[wv loadRequest:request];
[wvc setWebpage:wv];
[wvc setView:wv];
[nc pushViewController:wvc animated:NO];
NSLog(@"NC.viewcontroller count: %d", [nc.viewControllers count]);
[nc setLastURL:request.URL.absoluteString];
[wvc startLoaderIndicator];

[wv release];
[wvc release];
requestOk = YES;

Everything works perfectly, except that the WebViews don’t scroll. It looks something like this:

Answer 1

First thing I don’t like in this code block…

WebViewController *wvc = [[WebViewController alloc] initWithNibName:@"WebController" bundle:nil];
UIWebView *wv = [[UIWebView alloc] initWithFrame:CGRectMake(0,0,320,480)];
wvc.view = wvc.sView;

Instead create and add the subView to the view in the viewDidLoad block of the view controller. Furthermore, avail yourself of IB and add the WebView via the XIB and simply connect the IBOutlet and delegate.

If you insist upon doing it this way don’t overwrite the view,

[wvc.view addSubview:wv];

I wrote this in a simple WebViewController:

- (void)viewDidLoad
{
    [super viewDidLoad];

    self.view.autoresizingMask = UIViewAutoresizingFlexibleHeight;

    UIWebView *webView = [[UIWebView alloc] initWithFrame:self.view.bounds];
    webView.autoresizingMask = UIViewAutoresizingFlexibleHeight;
    [self.view addSubview:webView];
    [webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://news.google.com"]]]; 
}

and called it from a AppDelegate like this:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
    self.window.backgroundColor = [UIColor whiteColor];

    CPWebController *webController = [[CPWebController alloc] init];

    CPNavController *navController = [[CPNavController alloc] initWithRootViewController:webController];
    [self.window addSubview:navController.view];

    [self.window makeKeyAndVisible];
    return YES;
}

It sizes correctly, has a navbar, and scrolls correctly. Please forgive the lack of releases for code brevity.