Android Webview POST

Question

I am trying to accomplish something quite simple, yet I have found no good documentation on this. I have a webView, and I need to load a page in it that requires POST data. Seems like a simple process, yet I cannot find a way to display the result in a webView.

The process should be simple:

query(with POST data) -> webserver -> HTML response -> WebView.

I can submit data using a DefaultHttpClient, but this cannot be displayed in a WebView.

Any suggestions?

Much Thanks

Solution

private static final String URL_STRING = "http://www.yoursite.com/postreceiver";

    public void postData() throws IOException, ClientProtocolException {  

         List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();  
         nameValuePairs.add(new BasicNameValuePair("foo", "12345"));  
         nameValuePairs.add(new BasicNameValuePair("bar", "23456"));

         HttpClient httpclient = new DefaultHttpClient();  
         HttpPost httppost = new HttpPost(URL_STRING);  
         httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));  

         HttpResponse response = httpclient.execute(httppost);  
         String data = new BasicResponseHandler().handleResponse(response);
         mWebView.loadData(data, "text/html", "utf-8");
    }

Answer 1

Two ways to load post response in webview:

1. webview.loadData(): Like what you have posted in your solution. But "content loaded through this mechanism does not have the ability to load content from the network".

2. webview.postUrl(): Use this if post response needs to load content from the network. (NOTE: only accessible from api-level 5, which means no android 1.6 or lower)

---

String postData = "username=my_username&password=my_password";
webview.postUrl(url,EncodingUtils.getBytes(postData, "BASE64"));

(source: http://www.anddev.org/other-coding-problems-f5/webview-posturl-postdata-t14239.html)