In Android This Program Not Retrieve The Xml Data After The Progress Bar Loading Help Me

\In android programming..i like to retrieve data's in the xmltags from url(xmlparsing) in the meantime i want to load progress until the data retrieve from xmltags. i attach my cod

Solution 1:

The Following code is Wrong.

U dont have any data in your onPostExecute() so whatever youe want to display just show that thing in onPostExecute() instead of doInBackground().

So change it ..

A sample example u can find in LazyLoading Or Asynctask App:-

https://github.com/thest1/LazyList

https://github.com/ethervoid/android-async-task-example

May with following code u can get ur ans...!!!!

Solution 2:

First u cannot make the UI related actions in the doInBackground()

If u want u can do it in the onPostExecute() after completed the doInBackground() process ...

So change ur logic ..

Solution 3:

NodeList namelist;
String[] no,na,c;
 try {
              URLurl=newURL("http://api.androidhive.info/pizza/?format=xml");          
              DocumentBuilderFactorydbf= DocumentBuilderFactory.newInstance();          
              DocumentBuilderdb= dbf.newDocumentBuilder();
              Documentdoc= db.parse(newInputSource(url.openStream()));
              doc.getDocumentElement().normalize();
              NodeListnodeList= doc.getElementsByTagName("item");

              no = newString[nodeList.getLength()];
              na = newString[nodeList.getLength()];
              c = newString[nodeList.getLength()];
              for (inti=0; i < nodeList.getLength(); i++) {
                  Nodenode= nodeList.item(i);

                  ElementfstElmnt= (Element) node;

                  NodeListidlist= fstElmnt.getElementsByTagName("id");
                  Elementnumelement= (Element) idlist.item(0);
                  idlist = numelement.getChildNodes();
                  no[i]=((Node) idlist.item(0)).getNodeValue();                     

                  NodeListnamelist= fstElmnt.getElementsByTagName("name");
                  Elementnamelement= (Element) namelist.item(0);
                  namelist = namelement.getChildNodes();
                  na[i]=((Node) namelist.item(0)).getNodeValue()

                  NodeListcostlist= fstElmnt.getElementsByTagName("cost");
                  Elementcostlement= (Element) costlist.item(0);
                  costlist = costlement.getChildNodes();


                  }} 
         catch (Exception e) {
                 }
    returnnull;

        }

        @OverrideprotectedvoidonPostExecute(String result)
{
    super.onPostExecute(result);
                LinearLayoutlayout=newLinearLayout(act.this);
                layout.setOrientation(1);
                TextView no[];
                TextView na[];
                TextView c[];
              no = newTextView[nodeList.getLength()];
              na = newTextView[nodeList.getLength()];
              c = newTextView[nodeList.getLength()];
              for (inti=0; i < nodeList.getLength(); i++) {

                  no[i] = newTextView(act.this);
                  na[i] = newTextView(act.this);
                  c[i] = newTextView(act.this);
                  no[i].setText("ID="+no[i] );
                 na[i].setText("pizza name="+ na[i]);
                c[i].setText("cost="+ ((Node) costlist.item(0)).getNodeValue());

                  layout.addView(no[i]);
                  layout.addView(na[i]);
                  layout.addView(c[i]);
                  setContentView(layout);
    mDialog.dismiss(); 

        }