Benachrichtigung anzeigen, wenn XML-Element aktualisiert wird

Question

Ich habe ein Problem über Benachrichtigung. Was ich erreichen möchte, ist, dass eine Benachrichtigung ausgelöst werden soll, wenn ein Artikel aus XML aktualisiert wird oder geben Sie mir einen Hinweis, um dieses Problem zu lösen.

public class ReadRss extends AsyncTask <Void, Void, Void> { 

    public Context context;   
    public String address ; 
    public ProgressDialog progressDialog; 
    public ArrayList<FeedItem>feedItems; 
    public RecyclerView recyclerView; 
    public URL url; 

    public ReadRss(Context context,RecyclerView recyclerView, String address) { 
     this.recyclerView=recyclerView; 
     this.context = context; 
     progressDialog = new ProgressDialog(context ,R.style.MyTheme); 
     /* progressDialog.setCancelable(false);*/ 
     progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); // Trasparent Color #00F0F8FF 00000000 
     progressDialog.setIndeterminate(true); 
     progressDialog.setIndeterminateDrawable(context.getResources() 
       .getDrawable(R.drawable.progressbar_handler)); 
     progressDialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.parseColor("#00000000"))); 

     progressDialog.dismiss(); 
     this.address = address; 


    } 

    @Override 
    protected void onPreExecute() { 
     progressDialog.show(); 
     super.onPreExecute(); 

    } 

    @Override 
    protected void onPostExecute(Void aVoid) { 
     progressDialog.dismiss(); 
     super.onPostExecute(aVoid); 
     MyAdapter adapter=new MyAdapter(context,feedItems); 
     recyclerView.setLayoutManager(new LinearLayoutManager(context)); 
     /*recyclerView.addItemDecoration(new VerticalSpace(5));*/ 
     recyclerView.setAdapter(adapter); 


    } 

    @Override 
    protected Void doInBackground(Void... params) { 
     ProcessXml(Getdata()); 

     return null; 
    } 

    private void ProcessXml(Document data) { 
     if (data != null) { 
      feedItems=new ArrayList<>(); 
      Element root = data.getDocumentElement(); 
      Node channel = root.getChildNodes().item(1); 
      NodeList items = channel.getChildNodes(); 
      for (int i = 0; i < items.getLength(); i++) { 
       Node cureentchild = items.item(i); 
       if (cureentchild.getNodeName().equalsIgnoreCase("item")) { 
        FeedItem item=new FeedItem(); 
        NodeList itemchilds = cureentchild.getChildNodes(); 
        for (int j = 0; j < itemchilds.getLength(); j++) { 
         Node cureent = itemchilds.item(j); 
         if (cureent.getNodeName().equalsIgnoreCase("title")){ 
          item.setTitle(cureent.getTextContent()); 
         }else if (cureent.getNodeName().equalsIgnoreCase("content:encoded")){ 
          item.setDescription(cureent.getTextContent()); 
         }else if (cureent.getNodeName().equalsIgnoreCase("pubDate")){ 
          item.setPubDate(cureent.getTextContent()); 
         }else if (cureent.getNodeName().equalsIgnoreCase("link")){ 
          item.setLink(cureent.getTextContent()); 
         }/*else if (cureent.getNodeName().equalsIgnoreCase("media:thumbnail")){ 
          //this will return us thumbnail url 
          String url=cureent.getAttributes().item(0).getTextContent(); 
          item.setThumbnailUrl(url); 
         }*/ 
        } 
        feedItems.add(item); 

       } 

      } 
     }else { 

      feedItems.add(null); 
     } 
    } 

    public Document Getdata() { 
     try { 
      url = new URL(address); 
      HttpURLConnection connection = (HttpURLConnection) url.openConnection(); 
      connection.setRequestMethod("GET"); 
      InputStream inputStream = connection.getInputStream(); 
      DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance(); 
      DocumentBuilder builder = builderFactory.newDocumentBuilder(); 
      Document xmlDoc = builder.parse(inputStream); 
      return xmlDoc; 
     } catch (Exception e) { 
      e.printStackTrace(); 
      return null; 
     } 
    } 
} 

Mein Benachrichtigungscode ist

Intent intent = new Intent("com.rj.notitfications.SECACTIVITY"); 
PendingIntent pendingIntent = PendingIntent.getActivity(MainActivity.this, 1, intent, 0); 
Notification.Builder builder = new Notification.Builder(MainActivity.this); 
builder.setAutoCancel(false); 
builder.setTicker("this is ticker text"); 
builder.setContentTitle("WhatsApp Notification"); 
builder.setContentText("You have a new message"); 
builder.setSmallIcon(R.mipmap.ic_launcher); 
builder.setContentIntent(pendingIntent); 
builder.setOngoing(true); 
builder.setSubText("This is subtext..."); //API level 16 
builder.setNumber(100); 
builder.build(); 
myNotication = builder.getNotification(); 
manager.notify(11, myNotication); 

Answer 1

ich geplant Meldung schließlich erreichte immer durch folgende this link