javascript Android webview加载本地javascript
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Android webview load local javascript
提问by Rich
I am trying to load a javascript file stored on the device via html file which is loaded via a webview but never seems to load. I have tried using direct url's like you normally would in html and have also tried:
我正在尝试通过 html 文件加载存储在设备上的 javascript 文件，该文件通过 webview 加载但似乎从未加载。我尝试过像通常在 html 中一样使用直接 url，并且还尝试过：
<script type="text/javascript" src="file:///android_asset/www/js/jsfile.js"/>
<script type="text/javascript" src="file:///android_asset/www/js/jsfile.js"/>
JavaScript is enabled on the webview settings too and works fine if I have it on a server.
在 webview 设置中也启用了 JavaScript，如果我在服务器上有它，它就可以正常工作。
Thanks if anyone can help.
谢谢如果有人可以提供帮助。
回答by Paul
Hi actually I thing you should call directly the js file because you are calling it from the browser which considers the asset folder being its root folder. You should use the "file:///" prefix when calling from java code. Try something like this:
嗨，实际上我认为您应该直接调用 js 文件，因为您是从浏览器调用它的，浏览器将资产文件夹视为其根文件夹。从 Java 代码调用时，您应该使用“file:///”前缀。尝试这样的事情：
<script type="text/javascript" src="www/js/jsfile.js"/>
回答by pawan jain
You can use loadDataWithBaseURL.
您可以使用loadDataWithBaseURL.
Put all your javascript under an assetsfolder and give js file path relative to the assets directory in your script tag (in the html). Don't put a slash in the beginning of src.
将所有 javascript 放在一个assets文件夹下，并在脚本标记（在 html 中）中提供相对于资产目录的 js 文件路径。不要在 src 的开头放斜线。
Read the html into a string (htmlStr) and then load it in the webview as mentioned below.
将 html 读入字符串 ( htmlStr)，然后将其加载到 webview 中，如下所述。
webView.loadDataWithBaseURL("file:///android_asset/", htmlStr, "text/html", "UTF-8", null);
It has worked for me.
它对我有用。
