Salut ,

j'ai un problème dans cette classe ,quand je lance l'application il s’arrête dans la partie des session :

session = new SessionManager(getApplicationContext());
        Toast.makeText(getApplicationContext(),
                "User Login Status: " + session.isLoggedIn(), Toast.LENGTH_LONG)
                .show();

        session.checkLogin();
        HashMap<String, String> user = session.getUserDetails();
        txtUsername = user.get(SessionManager.KEY_NAME);
        // id = user.get(SessionManager.KEY_ID);

        TextView status = (TextView) findViewById(R.id.status);
        status.setText(Html.fromHtml("Welcome,<b>" +txtUsername + "</b>  "));

        logout = (Button) findViewById(R.id.logout);

        logout.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                session.logoutUser();
                finish();
            }
        });

voila le code complète:

import android.content.Intent;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.text.Html;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import org.json.JSONArray;

import java.util.HashMap;

public class Nav_Prop_Profil extends AppCompatActivity
        implements NavigationView.OnNavigationItemSelectedListener {


    Button logout;
    SessionManager session;
    TextView status;
    JSONArray contacts = null;
    String txtUsername, txtPassword, id;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_nav__prop__profil);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                Intent intent =new Intent(getApplicationContext(),Ann_Prop.class);
                startActivity(intent);

            }
        });
        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
                this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        drawer.setDrawerListener(toggle);
        toggle.syncState();
        NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
        navigationView.setNavigationItemSelectedListener(this);


        session = new SessionManager(getApplicationContext());
        Toast.makeText(getApplicationContext(),
                "User Login Status: " + session.isLoggedIn(), Toast.LENGTH_LONG)
                .show();

        session.checkLogin();
        HashMap<String, String> user = session.getUserDetails();
        txtUsername = user.get(SessionManager.KEY_NAME);
        // id = user.get(SessionManager.KEY_ID);

        TextView status = (TextView) findViewById(R.id.status);
        status.setText(Html.fromHtml("Welcome,<b>" +txtUsername + "</b>  "));

        logout = (Button) findViewById(R.id.logout);

        logout.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                session.logoutUser();
                finish();
            }
        });

    }


    @Override
    public void onBackPressed() {
        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        if (drawer.isDrawerOpen(GravityCompat.START)) {
            drawer.closeDrawer(GravityCompat.START);
        } else {
            super.onBackPressed();
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.nav__prop__profil, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @SuppressWarnings("StatementWithEmptyBody")
    @Override
    public boolean onNavigationItemSelected(MenuItem item) {
        // Handle navigation view item clicks here.
        int id = item.getItemId();

        if (id == R.id.nav_camera) {
            // Handle the camera action
        } else if (id == R.id.nav_gallery) {

        } else if (id == R.id.nav_slideshow) {

        } else if (id == R.id.nav_manage) {

        } else if (id == R.id.nav_share) {

        } else if (id == R.id.nav_send) {

        }

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);
        return true;
    }


}

Salut,

Ton application crash ? Si oui, tu dois avoir une stacktrace dans ton logcat. Peux-tu la poster ici ?

oui ,voila erreur qui s'affiche dans logcat :

09-15 11:36:09.980 1145-1145/com.kosalgeek.android.androidphpmysql E/AndroidRuntime: FATAL EXCEPTION: main
                                                                                     java.lang.RuntimeException: Unable to start activity ComponentInfo{com.kosalgeek.android.androidphpmysql/com.kosalgeek.android.androidphpmysql.Nav_Prop_Profil}: java.lang.NullPointerException
                                                                                         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
                                                                                         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
                                                                                         at android.app.ActivityThread.access$600(ActivityThread.java:130)
                                                                                         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
                                                                                         at android.os.Handler.dispatchMessage(Handler.java:99)
                                                                                         at android.os.Looper.loop(Looper.java:137)
                                                                                         at android.app.ActivityThread.main(ActivityThread.java:4745)
                                                                                         at java.lang.reflect.Method.invokeNative(Native Method)
                                                                                         at java.lang.reflect.Method.invoke(Method.java:511)
                                                                                         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
                                                                                         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
                                                                                         at dalvik.system.NativeStart.main(Native Method)
                                                                                      Caused by: java.lang.NullPointerException
                                                                                         at com.kosalgeek.android.androidphpmysql.Nav_Prop_Profil.onCreate(Nav_Prop_Profil.java:70)
                                                                                         at android.app.Activity.performCreate(Activity.java:5008)
                                                                                         at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
                                                                                         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
                                                                                         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 
                                                                                         at android.app.ActivityThread.access$600(ActivityThread.java:130) 
                                                                                         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 
                                                                                         at android.os.Handler.dispatchMessage(Handler.java:99) 
                                                                                         at android.os.Looper.loop(Looper.java:137) 
                                                                                         at android.app.ActivityThread.main(ActivityThread.java:4745) 
                                                                                         at java.lang.reflect.Method.invokeNative(Native Method) 
                                                                                         at java.lang.reflect.Method.invoke(Method.java:511) 
                                                                                         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
                                                                                         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
                                                                                         at dalvik.system.NativeStart.main(Native Method) 
09-15 11:36:09.980 349-360/system_process W/ActivityManager:   Force finishing activity com.kosalgeek.android.androidphpmysql/.Nav_Prop_Profil
09-15 11:36:09.984 349-360/system_process W/ActivityManager:   Force finishing activity com.kosalgeek.android.androidphpmysql/.LoginProp
                                                             

A la ligne 70 de ton fichier Nav_Prop_Profil.java tu manipules une variable null visiblement. Quelle est cette ligne ?

la ligne 70 :

status.setText(Html.fromHtml("Welcome,<b>" +txtUsername + "</b>  "));

j'ai enlevé  le code ci dessus  app  marche bien mais je ne sais pas c'est quoi le problème exactement   :

        status.setText(Html.fromHtml("Welcome,<b>" +txtUsername + "</b>  "));
        logout = (Button) findViewById(R.id.logout);
        logout.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                session.logoutUser();
                finish();
            }
        });

Ta variable status est probablement null.

Peux-tu nous montrer le contenu de ton fichier activity_nav__prop__profil.xml ?

-
Edité par hafsafati 15 septembre 2017 à 15:42:46