Problème variable globale
Bonjour. Dans mon mainactivity, je souhaite récuper is qui est dans the task. Ma méthode ne fonctionne pas. Pouvez-vous m'aider svp?
MainActivity:
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| package com.example.basedonnees;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
//import org.apache.http.NameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ListActivity;
import android.net.ParseException;
import android.os.Bundle;
import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.Toast;
public class MainActivity extends ListActivity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
String result = null;
String probleme= null;
InputStream is = null;
JSONObject json_data=null;
//ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
ArrayList<String> donnees = new ArrayList<String>();
try{
//commandes httpClient
TheTask task= new TheTask();
task.execute("http://192.168.15.117/ecoles/projet.php");
is=task.is;
Log.i("is=","" +is);
probleme=task.entityStr;
Log.i("entityStr=",""+probleme);
//HttpClient httpclient = new DefaultHttpClient();
/*HttpPost httppost = new HttpPost("http://127.0.0.1/ecoles/projet.php");
Log.i("connect base","coucou");
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
Log.i("connect base","coucou1");
HttpResponse response = httpclient.execute(httppost);
Log.i("connect base","coucou2");
HttpEntity entity = response.getEntity();
is = entity.getContent();*/
}
catch(Exception e){
Log.i("taghttppost",""+e.toString());
Toast.makeText(getBaseContext(),e.toString() ,Toast.LENGTH_LONG).show();
}
//conversion de la réponse en chaine de caractère
try
{
Log.i("connect base","coucou");
Log.i("is=",""+is);
Log.i("ok=","ok");
BufferedReader reader = new BufferedReader(new InputStreamReader(is,"UTF-8"));
Log.i("connect base","coucou1");
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
is.close();
result = sb.toString();
}
catch(Exception e)
{
Log.e("tagconvertstr",""+e.toString());
}
//recuperation des donnees json
try{
JSONArray jArray = new JSONArray(result);
for(int i=0;i<jArray.length();i++)
{
json_data = jArray.getJSONObject(i);
donnees.add(json_data.getString("nom"));
//r.add(json_data.getString("categorie"));
}
setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_expandable_list_item_1, donnees));
}
catch(JSONException e){
Log.e("tagjsonexp",""+e.toString());
} catch (ParseException e) {
Log.e("tagjsonpars",""+e.toString());
}
}
} |
Et TheTask:
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| package com.example.basedonnees;
import java.io.InputStream;
import java.util.ArrayList;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import android.os.AsyncTask;
import android.util.Log;
import android.widget.TextView;
public class TheTask extends AsyncTask<String,String,String>
{
private TextView textView;
public InputStream is;
public String entityStr;
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
// update textview here
textView.setText("Server message is "+result);
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
}
public InputStream Avoiris() {
Log.i("Avoiris=",""+is);
return is;
}
@Override
protected String doInBackground(String... params) {
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
try
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost method = new HttpPost(params[0]);
Log.i("method=",""+method);
method.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(method);
HttpEntity entity = response.getEntity();
if(entity != null){
Log.i("entity=","" +entity);
Log.i("message1=","coucou");
entityStr=EntityUtils.toString(entity);
Log.i("message2=","coucou");
Log.i("entityString=","" +entityStr);
HttpClient httpclient2 = new DefaultHttpClient();
HttpPost method2 = new HttpPost(params[0]);
Log.i("method=",""+method2);
method2.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response2 = httpclient2.execute(method2);
HttpEntity entity2 = response2.getEntity();
Log.i("entity2=","" +entity2);
is = entity2.getContent();
Log.i("is=",""+is);
return entityStr;
}
else{
Log.i("entity=","" +entity);
entityStr="No string.";
return entityStr;
}
}
catch(Exception e){
Log.i("entity=",e.toString());
entityStr="Network problem";
return entityStr;
}
}
} |
