如何引用 HTML 锚点 [英] How to reference an HTML anchor

问题描述

我正在通过 loadHTMLString 将一串 HTML 加载到 UIWebView 中.它会生成一个很长的网页.加载该字符串后，我需要导航到带有名称"的 HTML 锚标记.属性集.在 HTML 中，我可能有:

I'm loading a string of HTML into a UIWebView through loadHTMLString. It produces a very long webpage. Once that string is loaded, I need to navigate to an HTML anchor tag with its "name" attribute set. In the HTML, I might have:

//3 pages of text here
<a name="go here"></a> lots more text here
//another 3 pages of text here

我需要向下滚动网页以转到此处"；一旦加载.如果用户单击网页内的链接并加载外部 URL，则映射工作正常.但在这种情况下，我需要首先向下滚动已加载的网页.

I need the webpage to scroll down to "go here" once loaded. The mappings work fine if a user clicks a link inside of the webpage and it loads an external URL. But in this case, I need to initially scroll down an already loaded webpage.

我仍然可以像这样执行 JavaScript 代码:

I can still execute JavaScript code like this:

[MyWebView loadHTMLString:dataString baseURL:[NSURL URLWithString:@"http://www.myscheme.com"]];
[webView stringByEvaluatingJavaScriptFromString:@"javascriptFunc('param1');"];

但我需要类似的东西来导航到锚标记.有什么建议吗?

But I need something similar for navigating to the anchor tag. Any suggestions?

推荐答案

您可以通过执行以下操作跳转到已加载 HTML 文件中的锚点:

You can jump to an anchor in an already-loaded HTML file by doing:

[webView stringByEvaluatingJavaScriptFromString:@"window.location.hash='#foo'"];

这将完成跳跃，没有动画.

This will do the jump, sans animation.

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