Question

I’m using a UIWebView like that in the viewDidLoad:

webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 88, 320, 400)]; //  init and create the UIWebView
    webView.autoresizesSubviews = YES;
    webView.userInteractionEnabled = NO;
    webView.autoresizingMask=(UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth);
    [webView  setDelegate:self];//set the web view delegates for the web view to be itself
    NSURLRequest *requestObject = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.apple.com"]];//Create a URL object & Set the URL to go to for your UIWebView
    [webView loadRequest:requestObject];//load the URL into the web view.
    [self.view addSubview:webView];//add the web view to the content view
    [webView release], webView = nil;

When I try to change the page, I try that BUT it doesn’t working :

[webView loadRequest: [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.facebook.com"]]];
[webView reload];

The code that’s just above is in the action of a TabBar button.

**EDIT :
When I comment

[webView release], webView = nil;

I can see the apple website but not facebook when I push the button! The screen is refreshing in the apple website and not facebook…**

Hundred of thanks to help 😉

Answer 1

You’ve released and set your webView to nil. So the object no longer exists. You are calling loadRequest and reload on a nil object which will do nothing.

Assuming you have webView as an instance variable in your class, remove the line

[webView release], webView = nil;

and instead put that in your dealloc method otherwise when you call

[webView loadRequest: [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.facebook.com"]]];

then you will be calling it on a nil object which will do nothing.