JQuery不适用于WebView

I tried to include JQuery files in assets/scripts and on Internet, but the alert dialog doesn't show. I got the log output and make it output.html, it works in Windows (so strange!). What's the problem with WebView?

我试图将JQuery文件包含在资源/脚本和Internet上，但是警告对话框没有显示。我得到了日志输出并使其成为output.html，它在Windows中工作（太奇怪了！）。 WebView有什么问题？

public void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    webView = (WebView) findViewById(R.id.webView);
    final String s = "<html><head>" +
    "<link href=\"css/my.css\" type=\"text/css\" rel=\"stylesheet\" />" +
    "<script src=\"scripts/jquery-1.6.2.min.js\" rel=\"stylesheet\" type=\"text/javascript\"></script>" +
    "<script src=\"https://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.js\" type=\"text/javascript\"></script>" +
    "<script>" +
    "$(document).ready(function(){ alert('hello'); });" +
    "</script>" +
    "</head><body><div>All I hear is raindrops." +
    "Falling on the rooftop. Oh baby tell me why you have to go. " +
    "Cause this pain I feel you won't go away. And today, " +
    "I'm officially missing you.</div></body></html>";
    webView.getSettings().setJavaScriptEnabled(true);
    Log.d("Something", s);
    webView.loadDataWithBaseURL("file:///android_asset/", s, "text/html", "utf-8", null);
}

This is the log output after adding extension ".html". It works on Firefox but does not on WebView. :(

这是添加扩展名“.html”后的日志输出。它适用于Firefox，但不适用于WebView。 :(

<html>
<head>
<link href="css/my.css" type="text/css" rel="stylesheet" />
<script src="scripts/jquery-1.6.2.min.js" rel="stylesheet" type="text/javascript"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.js" type="text/javascript"></script>
<script>$(document).ready(function(){ alert('hello'); });</script>
</head>
<body>
    <div>
    All I hear is raindrops.Falling on the rooftop. Oh baby tell me why you have to go. Cause this pain I feel you won't go away. And today, I'm officially missing you.
    </div>
</body>
</html>

6 个解决方案

#1

webView.loadDataWithBaseURL("file:///android_asset/", s, "text/html", "utf-8", null);

be change to

改变

webView.loadDataWithBaseURL(getAssets(), s, "text/html", "utf-8", null);

to get asset file, you will need to access app's asset path. An app is an user on Android, so cannot access path begin with "file://" directory.

要获取资产文件，您需要访问应用程序的资产路径。应用程序是Android上的用户，因此无法访问以“file：//”目录开头的路径。

#2

You will need to have the jquery.js file in your assets/scripts folder for this to work.

您需要在assets / scripts文件夹中包含jquery.js文件才能使其正常工作。

scripts/jquery-1.6.2.min.js

脚本/ jQuery的1.6.2.min.js

That should work.

这应该工作。

#3

As already mentioned on Android WebView doesn't load jQuery:

正如Android WebView上已经提到的那样，不加载jQuery：

Where is your scripts/jquery-1.6.2.min.js script located? If it is located in your assets directory, then you should initialize the webView giving it the assets directory as baseUrl:

您的scripts / jquery-1.6.2.min.js脚本位于何处？如果它位于您的资产目录中，那么您应该初始化webView，将其资产目录作为baseUrl：

webView.loadDataWithBaseURL("file:///android_asset/", data, "text/html", "UTF-8", null);

要么

webView.loadUrl("file:///android_asset/file.html");

You could try to create a simple .js file with a simple function like

您可以尝试使用简单的函数创建一个简单的.js文件

function dummy(document) { document.write("Hooray it works"); }

and try to access the dummy function in your html to test if the .js file is included.

并尝试访问html中的虚拟函数来测试是否包含.js文件。

#4

setPluginsEnabled in WebView settings to true.

WebView设置中的setPluginsEnabled为true。

#5

I Guess, some javascript functions like prompt and alert (System popups), should be implemented by your code. A simple guide..,

我猜，一些javascript函数，如提示和警报（系统弹出窗口），应该由您的代码实现。一个简单的指南..，

1. Create a class Jscalls.java

1.创建一个类Jscalls.java

public class Jscalls {

    Context mContext;
    Jscalls(Context c) {
        mContext = c;
    }

    /** Show a toast from the web page */
    public void alert(String toast) {
        Toast.makeText(mContext, toast, Toast.LENGTH_SHORT).show();
    }    
}

2. In your program add, webView.addJavascriptInterface(new Jscalls(this), "Android");

2.在你的程序中添加webView.addJavascriptInterface（新的Jscalls（this），“Android”）;

3. In html pages, instead of alert("hello"), use Android.alert("hello")

3.在html页面中，使用Android.alert（“hello”）而不是alert（“hello”）

Hope it works :)

希望它有效:)

#6

You should give full path to load javascript and css for example

你应该给出加载javascript和css的完整路径

<link href="http://yourdomain.com/css/my.css" type="text/css" rel="stylesheet" />

#1

webView.loadDataWithBaseURL("file:///android_asset/", s, "text/html", "utf-8", null);