在IOS中我们使用
navigationType==UIWebViewNavigationTypeBackForward||
navigationType==UIWebViewNavigationTypeFormSubmitted||
navigationType==UIWebViewNavigationTypeReload in (BOOL)
webView:(UIWebView *)webView
shouldStartLoadWithRequest:(NSURLRequest *)request
navigationType:(UIWebViewNavigationType)navigationType
如何在Android onPageStarted中执行相同操作？