How to create/update/load a HTML file at runtime

问题

I need to create and open an HTML file at runtime.

    <html>
      <body>
        <form name="Home" method="POST" action='' >
          <input id='Title' type='hidden' value="Mr" name='Title'/>
          <input id='Name' type='hidden' value="bala" name='Name'/>
           .
           .
           .
         </form>
         <script language='javascript'>
            //java script
         </script>
      </body>
    </html>

In above format, i need to update value field at runtime. After updating I want to open this html file within my android application.

Update: I know we can crate HTML file like below..

public static String createHTML(Study study) {
    String format =
            "<html>" +
            "<body>" +
            "<form name="Home" method="POST" action='' >" +
            "<input id='Title' type='hidden' value='%d' name='Title'/>" +
            .
            .
            .
            .
            "   </body>" +
            "</html>";
    return String.format(format, study.title, study.name...);
}

but i wank to know is there any other way to create HTML file like creating XML file using XmlSerializer Thanks!

回答1:

How to create html file.

Open file
Write text characters comprising the HTML
Close file

If you need more details, the Oracle Java Tutorial has lessons on basic Java constructs, and on how to do simple file I/O.

There are other more "elegant" ways of doing this kind of thing in different contexts (e.g. in a web service) but if this the sum total of what you need to do, then ... keep it simple.

... is there any other way to create HTML file like creating XML file using XmlSerializer.

Not HTML. You could create XHTML that way through.

Having said that, constructing HTML or XHTML that way sounds like a poor idea. The resulting code would be neither readable or efficient ... compared with string concatenation or template-based approaches.

(Try it and see ...)

回答2:

If you want to run html file runtime then try using this code.

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

And make sure if you want to use any css or javascript file then put it into android assest folder..

回答3:

There are indeed better ways of generating HTML pages in Android than manual string concatenation. There are a few slick Java libraries that will do it for you (recall that you can use regular Java libraries within your Android project pretty easily).

RenderSnake: http://rendersnake.org/index.html
FreeMarker Java: http://freemarker.org/

回答4:

Create MyHtml file

MyHtml.html

<html>
  <body>
    <form name="Home" method="POST" action='' >
    <input id='Name' type='hidden' value="MyName" name='Name'/>
    <input id='FirstName' type='hidden' value="MyFName" name='FirstName'/>          
       .
       .
       .
     </form>
     <script language='javascript'>
        //java script
     </script>
  </body>
</html>

stored in Assets folder as MyHtml.html

Read and update this file in my app like below

InputStream is = getAssets().open("MyHtml.html");
    int size = is.available();

    byte[] buffer = new byte[size];
    is.read(buffer);
    is.close();

    String str = new String(buffer);
    str = str.replace("MyName", "James Bala");
    str = str.replace("MyFName", "James");
    .
    .
    .

then i loaded my html file in webView like below

myWebView.loadData(str, "text/html; charset=utf-8", "UTF-8");

As Stephen's advice finally I ended with this solutions. Thanks @Stephen

来源：https://stackoverflow.com/questions/18416182/how-to-create-update-load-a-html-file-at-runtime

标签

java

android

html

android-webview