Consommation de WebService et ProgressBar
Bonjour,
Je souhaiterais mettre en place un loader pour un appel à un WebService Rest JSON.
J'ai vu pas mal de réponses sur internet qui demandent d'utiliser "AsyncTask".
J'ai donc mis en place "AsyncTask", mais le problème est que lors de l'appel au WebService le loader n'est pas affiché.
Si je commente les lignes "mailboxThread.start();mailboxThread.join();" et "dialog.dismiss();" le loader apparait bien (éternellement du fait du commentage de "dismiss"). C'est donc bien l'appel au WebService qui pose problème.
Le problème viendrait-il du fait que "MailboxThread" étend "Thread" et se mettrait donc en conflit avec "AsynkTask" ?
Merci d'avance pour votre aide.
Cordialement.
NB : "ActionBarWindow" est une fenêtre permettant la gestion de "ActionbarSherlock".
Code:
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public class NewMailboxActivity extends ActionBarWindow implements OnTouchListener, Handler.Callback
{
protected LoadingTask loader;
class LoadingTask extends AsyncTask<Void, Void, Void>
{
Exception failure;
ProgressDialog dialog = null;
ArrayList<Hashtable<String, String>> values;
public Void doInBackground(Void... params)
{
this.failure = null;
this.values = new ArrayList<Hashtable<String, String>>();
try
{
dialog = new ProgressDialog(NewMailboxActivity.this);
dialog.setMessage("Test");
dialog.show();
mailboxThread.start();
mailboxThread.join();
} catch (Exception ex)
{
Log.e("MONAPP", "Failed to retrieve JSON list", ex);
this.failure = ex;
} finally
{
NewMailboxActivity.this.loader = null;
dialog.dismiss();
}
return null;
}
public void onPostExecute(Void result)
{
dialog.dismiss();
}
}
private static final String TAG = "NewMailboxActivity Display";
private Intent m_intent;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.mailbox);
m_intent = getIntent();
}
public void submitForm(View v)
{
try
{
String url = "mon_url";
mailboxThread = new MailboxThread(url);
Log.v(TAG, " OK PROGRESS");
this.loader = new LoadingTask();
this.loader.doInBackground(null);
m_errorContent = mailboxThread.getError();
m_resultContent = mailboxThread.getResult();
if (m_errorContent != null || m_resultContent != null)
{
try
{
if (m_errorContent != null && m_errorContent.getString("parameter").compareToIgnoreCase("") != 0)
{
AlertDialog.Builder builder = new AlertDialog.Builder(NewMailboxActivity.this);
String errorLabel = "";
String errorCode = m_errorContent.getString("parameter");
String errorText = m_errorContent.getString("message");
InternationalizeUtility internationalizeUtility = new InternationalizeUtility();
errorLabel = internationalizeUtility.getResultFromCode(NewMailboxActivity.this, errorCode, errorText);
if (errorCode.compareToIgnoreCase("unable_to_connect_with_this_login_and_password") == 0)
{
if (m_imapAuthorized == false)
{
errorLabel = getString(R.string.imap_unauthorized);
}
}
// R.string.errorLabel;
builder.setMessage(errorLabel).setCancelable(false).setPositiveButton(getString(R.string.ok), new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int id)
{
}
});
AlertDialog alert = builder.create();
alert.show();
} else
{
// Aucune erreur n'a été rencontrée
// Récupération des données :
if (m_resultContent.has("account_id") && m_resultContent.has("mailbox_id"))
{
m_intent = new Intent();
m_intent.setClass(NewMailboxActivity.this, SettingActivity.class);
startActivity(m_intent);
} else
{
AlertDialog.Builder builder = new AlertDialog.Builder(NewMailboxActivity.this);
String errorLabel = "";
String errorCode = "internal_error";
String errorText = "internal error";
InternationalizeUtility internationalizeUtility = new InternationalizeUtility();
errorLabel = internationalizeUtility.getResultFromCode(NewMailboxActivity.this, errorCode, errorText);
// R.string.errorLabel;
builder.setMessage(errorLabel).setCancelable(false).setPositiveButton(getString(R.string.ok), new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int id)
{
}
});
AlertDialog alert = builder.create();
alert.show();
}
// startActivity(m_intent);
}
} catch (JSONException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
} catch (Exception e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
public boolean handleMessage(Message msg)
{
// TODO Auto-generated method stub
return false;
}
@Override
public boolean onTouch(View v, MotionEvent event)
{
// TODO Auto-generated method stub
return false;
}
} |
Le code du Thread appelé :
Code:
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import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicHeader;
import org.apache.http.protocol.HTTP;
import org.json.JSONException;
import org.json.JSONObject;
import android.util.Log;
public class MailboxThread extends Thread
{
private static final String TAG = "MailboxThread";
private JSONObject m_error = null;
private JSONObject m_result = null;
private String m_urlStr;
public MailboxThread(String urlStr)
{
m_urlStr = urlStr;
}
public JSONObject getError()
{
return m_error;
}
public JSONObject getResult()
{
return m_result;
}
public void run()
{
Log.v(TAG, "Text : " + m_urlStr);
HttpClient httpClient = new DefaultHttpClient();
try
{
HttpPost httpPost = new HttpPost(m_urlStr);
JSONObject entry = new JSONObject();
entry.put("toto", "toto");
StringEntity entity = new StringEntity(entry.toString());
Log.i(TAG, entry.toString());
entity.setContentType("application/json;charset=utf-8");
entity.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json;charset=utf-8"));
httpPost.setEntity(entity);
HttpResponse httpResponse = httpClient.execute(httpPost);
int statusCode = httpResponse.getStatusLine().getStatusCode();
Log.i(TAG, "Code retour : " + statusCode);
HttpEntity httpEntity = httpResponse.getEntity();
if (httpEntity != null)
{
InputStream inputStream = httpEntity.getContent();
// Lecture du retour au format JSON
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
StringBuilder stringBuilder = new StringBuilder();
String ligneLue = bufferedReader.readLine();
while (ligneLue != null)
{
stringBuilder.append(ligneLue + "\n");
ligneLue = bufferedReader.readLine();
}
bufferedReader.close();
inputStream.close();
// TMP
String str2 = stringBuilder.toString();
Log.i(TAG, str2);
// Analyse du retour
JSONObject jsonObject = new JSONObject(stringBuilder.toString());
if (jsonObject.has("error"))
{
JSONObject jsonResultSetError = jsonObject.getJSONObject("error");
// if (jsonResultSetError != null)
// {
Log.i(TAG, "OK ERROR");
m_error = jsonResultSetError;
} else
{
Log.i(TAG, "OK PAS ERROR");
m_result = jsonObject;
}
}
} catch (IOException e)
{
Log.e(TAG, e.getMessage());
} catch (JSONException e)
{
Log.e(TAG, e.getMessage());
}
}
} |
