Android: Webview and Activity_问答_开发者_运维开发者技术经验分享

开发者 https://www.devze.com 2023-01-28 00:14 出处：网络

I have hosted a web project in my system.I need to run the html content in Android application using WebView. I did that.My requirement is I need to get the content of the html page or Javascript insi

My html page contains one checkbox and some content inside

. I also have Save button. When I click the开发者_StackOverflow中文版 Save button I should get the content of the hidden fields inside the html page in My Activity .IS that possible. pls help me.

Finally I got the problem resolved.. In my activity I added a JavaScript interface with a javascript function named saved() in it.In my html page I added a javascript function named clicked().In this function I collected all the values as a String and passed to the saved(). The saved() function is in my activity and so I could use the values in my Activity.

In Oncreate()
{
        mWebView.addJavascriptInterface(new DemoJavaScript(),"demo");
        mWebView.loadUrl("file:///android_asset/index.html");
}

final class DemoJavaScript {

        DemoJavaScript() {
        }

       // This is the javascript function
        public void saved(String values) {

         Toast.makeText(getApplicationContext(), values, Toast.LENGTH_SHORT).show();

        }
    }

// my html page

<script language="JavaScript">
          var values; 
                function clicked()
                {
               values="";
                values=document.getElementById('myvalue');
                  window.demo.saved(values);

                }
        </script>

<body>
<br />
<input type="hidden" name="myvalue" id="myvalue" value="reebok"/>





<br/>
<table>
<tr><td width="100" align=right><input type="button" name="save" value="Save" onClick="clicked()"/></td><td><input type="button" name="cancel" align=center value="Cancel"/></td></tr>

</table>
</body>
</html>