UIWebView完成得太快

下面是我如何处理需要确保页面已完全加载的情况:为document.onload事件添加一个javascript事件处理程序,该事件执行以下操作:

function onDocumentLoad() {
     window.location.href = 'myapp://loaded';
}

然后在UIWebViewDelegate中,可以执行以下操作:

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
    if ([[request.URL absoluteString] isEqual:@"myapp://loaded"]) {
        [activityIndicator stopAnimating];
        return NO;
    }
    return YES;
}