load UIWebview when we detect the Target Image

Hi all ,

Thank you spending time for reading my post . My intension is when we detect the Target using the ImageTarget I have to load the UIWebview . So for that in the  renderFrameQCAR mehtod I have tried this code for loading a UIWebView when we detect the ImageTarget . But it is crashing . Please help me how to do this .

            UIWebView *ew = [[UIWebView alloc] initWithFrame:self.bounds];

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

            [self addSubview:ew];