Losing NSURL property after viewDidLoad

Question

I'm want detect link clicks in a UIWebView which is inside one of my ViewControllers and then initiate a new ViewController which is basically another UIWebView with the detected link.

heres my code:

-(BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{

    NSURL *url = [request URL];

    if (self.interceptLinks){

        UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
        BrowserViewController *browser = [storyboard instantiateViewControllerWithIdentifier:@"browserViewController"];
        NSLog(@"sending url== %@", url);
        [browser openBrowserWithUrl:url];
        [self performSegueWithIdentifier:@"browserDetail" sender:self];

        return NO;
    }
    else {

        self.interceptLinks = TRUE;
        return YES;

    }

}

Then in BrowserViewController.h

 @property (strong, nonatomic) NSURL *incomingURL;
 @property (strong, nonatomic) IBOutlet UIWebView *browserView;
 - (void)openBrowserWithUrl:(NSURL *)url;

Then in BrowserViewController.m

- (void)openBrowserWithUrl:(NSURL *)url
{
    self.incomingURL = url;
    NSLog(@"incomming_URL==%@", self.incomingURL);
}


- (void)viewDidLoad
{
    [super viewDidLoad];
    NSLog(@"viewDidLoad_url == %@", self.incomingURL);


    self.browserView.delegate = self;
    self.browserView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height)];
    [self.browserView loadRequest:[NSMutableURLRequest requestWithURL:self.incomingURL]];





[self.view addSubview:_browserView];
// Do any additional setup after loading the view.

}

The NSLog inside the "openBrowserWithUrl" returns the desired NSURL, but the one inside "viewDidLoad" returns null, what am I doing wrong here ??

Answer 1

Calling performSegueWithIdentifier will actually instantiate a new instance of BrowserViewController. I'm not familiar enough with storyboards to know how to do this, but there is a UIViewController callback that will let you know when a segue is being performed, so that you can pass it the incomingURL.

If you want to perform it manually, instead of using storyboards, you can replace your performSegue call with

[self.navigationController pushViewController:browser animated:YES];