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POPassing two parametes to asynctask method. how to?
 

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  1. POPassing two parametes to asynctask method. how to?
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    <p>I'm designing an application that frequently communicates to a web server for updates. Communication happens only when user requests. I found AsyncTask could be helpful here. So I modified one class to serve my application as AsyncTask.</p> <p>I want to pass an url and http post parameters to anysc class's doInBackground process. I can't figure out how to do it.</p> <p>Here's it- </p> <pre><code>public class GetXMLFromServer extends AsyncTask&lt; String, Void, String&gt; { private Context context; GetXMLCallback gc = null; ProgressDialog progressDialog; public GetXMLFromServer(Context context, GetXMLCallback gc) { this.context = context; this.gc = gc; progressDialog = new ProgressDialog(this.context); } protected void onPreExecute() { progressDialog.setMessage("Fetching..."); progressDialog.show(); } @Override protected void onPostExecute(String result) { gc.onSuccess(result); progressDialog.dismiss(); } @Override protected String doInBackground(String... params) { String response = ""; response=CustomHttpClient.executeHttpPost(params[0]); return null; } //Confused how to pass URL and http post parameters to doInBackground(). } </code></pre> <p>I've one interface that is used to process response sent from onPostExecute(). It is as fallows.</p> <pre><code> package com.project.main.external; public interface GetXMLCallback { void onSuccess(String downloadedString); void onFailure(Exception exception); } </code></pre> <p>And here is my main activity that calls for http response --</p> <pre><code> public class UpdateList extends Activity implements GetXMLCallback { //above line also throws error that interface methods are not implemented yet //they are (few lines below) defined. private TextView textView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.list_layout); textView = (TextView) findViewById(R.id.TextView01); } GetXMLCallback gc = new GetXMLCallback() { public void onFailure(Exception exception) { } public void onSuccess(String downloadedString) { textView.setText(downloadedString); } }; public void getUpdates(View view) { GetXMLFromServer task = new GetXMLFromServer(UpdateList.this, gc); task.execute(WebConstants.GET_UPDATES); } } </code></pre>
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    1. COpossible duplicate of [AsyncTask's doInBackground(Params... params)](http://stackoverflow.com/questions/6343064/asynctasks-doinbackgroundparams-params)
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      1. USAaron McIver
 

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