iOS webview开发浏览器，屏蔽地址栏无关地址

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
    NSString *urlStr = request.URL.absoluteString;
    if (([urlStr hasPrefix:@"http://www"])||([urlStr hasPrefix:@"http://m."])||([urlStr hasPrefix:@"http://v."])){
       //_searchURLView.inputView是一个textField改成的地址栏
        _searchURLView.inputView.text = urlStr;
    }
    return YES;
}