In android I'm using WebView to display a part of a webpage which I fetched from the internet using HttpClient from Apache. To only have the part I want from the html, I use Jsoup.
String htmlString = EntityUtils.toString(entity4); // full html as a string
Document htmlDoc = Jsoup.parse(htmlString); // .. as a Jsoup Document
Elements tables = htmlDoc.getElementsByTag("table"); //important part
Now I can just load tables.toString()
in the WebView and it displays. Now I want to link a CSS file which I store inside my assets folder with this page. I know I can have something like
<LINK href="styles/file.css" type="text/css开发者_运维知识库" rel="stylesheet">
In my html, but how do I link it so that it uses the one I've stored locally?
---EDIT---
I've now changed to this:StringBuilder sb = new StringBuilder();
sb.append("<HTML><HEAD><LINK href=\"file:///android_asset/htmlstyles_default.css\" type=\"text/css\" rel=\"stylesheet\"/></HEAD><body>");
sb.append(tables.toString());
sb.append("</body></HTML>");
return sb.toString();
Somehow I do not get the styles applied to the page. Is it the location path I used that is wrong?
Seva Alekseyev is right, you should store CSS files in assets
folder, but referring by file:///android_asset/filename.css
URL doesn't working for me.
There is another solution: put CSS in assets
folder, do your manipulation with HTML, but refer to CSS by relative path, and load HTML to WebView by loadDataWithBaseURL()
method:
webView.loadDataWithBaseURL("file:///android_asset/", htmlString, "text/html", "utf-8", null);
E.g. you have styles.css
file, put it to assets
folder, create HTML and load it:
StringBuilder sb = new StringBuilder();
sb.append("<HTML><HEAD><LINK href=\"styles.css\" type=\"text/css\" rel=\"stylesheet\"/></HEAD><body>");
sb.append(tables.toString());
sb.append("</body></HTML>");
webView.loadDataWithBaseURL("file:///android_asset/", sb.toString(), "text/html", "utf-8", null);
P.S. I've come to this solution thanks to Peter Knego's answer.
You cannot store arbitrary files in res
- just the specific resource types (drawables, layouts, etc.). The CSS should go to the assets
folder instead. Then you can refer to it by the following URL: file:///android_asset/MyStyle.css
On a related note, if you're not storing the file in the assets folder and want to use relative paths, Webview on Android sometimes requires dot-slash before relative paths.
<LINK href="./styles/file.css" type="text/css" rel="stylesheet">
See this post
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