Erreur crash application

Version imprimable

Bonsoir,

Je développe en ce moment une application assez basique (lol !) avec l'aide d'un tutoriel... j'ai fait tout ce qui est dit, mais mon application crash au moment de lancer...
Je ne vais peut être pas vous mettre tous mes fichiers, mais voici au moins le MainActivity....
Quand je retire en bas le test() dans private void init() et la partie:

Code:

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private void test() {
        ((Button) findViewById(R.id.btnCalcule)).setOnClickListener(new Button.OnClickListener() {
            public void onClick(View v) {
                Toast.makeText(MainActivity.this, "Test", Toast.LENGTH_SHORT).show();
            }
        });
    }

Il n'y a aucun soucis de lancement.... qu'est ce qui peut faire que ça crash comme ça ?
Cordialement....

Code:

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package com.example.bottomnavigation.vue;
 
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.FragmentTransaction;
 
import android.os.Bundle;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.Toast;
 
import com.example.bottomnavigation.FavoriteFragment;
import com.example.bottomnavigation.HomeFragment;
import com.example.bottomnavigation.ProfileFragment;
import com.example.bottomnavigation.R;
import com.example.bottomnavigation.controleur.Controle;
import com.google.android.material.bottomnavigation.BottomNavigationView;
 
public class MainActivity extends AppCompatActivity {
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        init();
        this.controle = Controle.getInstance();
 
        BottomNavigationView navigationView = findViewById(R.id.btm_nav);
        navigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
            @Override
            public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
 
                int id = menuItem.getItemId();
 
                if(id == R.id.home) {
                    HomeFragment fragment = new HomeFragment();
                    FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction.replace(R.id.frame, fragment);
                    fragmentTransaction.commit();
                }
                if(id == R.id.imc) {
                    FavoriteFragment fragment = new FavoriteFragment();
                    FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction.replace(R.id.frame, fragment);
                    fragmentTransaction.commit();
                }
 
                if(id == R.id.profile) {
                    ProfileFragment fragment = new ProfileFragment();
                    FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
                    fragmentTransaction.replace(R.id.frame, fragment);
                    fragmentTransaction.commit();
                }
 
 
                return true;
            }
        });
        navigationView.setSelectedItemId(R.id.home);
    }
 
    private EditText poidsInput;
    private EditText ageInput;
    private EditText tailleInput;
    private Button customWoman;
    private Button customMan;
    private TextView lblIMG;
    private Controle controle;
 
    private void init() {
        poidsInput = findViewById(R.id.poidsInput);
        ageInput = findViewById(R.id.ageInput);
        tailleInput = findViewById(R.id.tailleInput);
        customWoman = findViewById(R.id.customWoman);
        customMan = findViewById(R.id.customMan);
        lblIMG = findViewById(R.id.lblIMG);
        test();
    }
 
 
    private void test() {
        ((Button) findViewById(R.id.btnCalcule)).setOnClickListener(new Button.OnClickListener() {
            public void onClick(View v) {
                Toast.makeText(MainActivity.this, "Test", Toast.LENGTH_SHORT).show();
            }
        });
    }
 
}

07/10/2019, 09h25
salfai

https://grunk.developpez.com/tutorie...ndroid-studio/

Citation:

Envoyé par salfai

https://grunk.developpez.com/tutorie...ndroid-studio/

Bonjour, et merci de votre réponse...

J'ai lu le tuto, et jai cette erreur là mais je ne sais pas comment la résoudre :

java.lang.ClassCastException: android.widget.Toolbar cannot be cast to androidx.appcompat.widget.Toolbar
at com.example.navigationdrawer.MainActivity.onCreate(MainActivity.java:24)

Code:

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package com.example.navigationdrawer;
 
import androidx.appcompat.app.ActionBarDrawerToggle;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.view.GravityCompat;
import androidx.drawerlayout.widget.DrawerLayout;
 
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Gallery;
import androidx.appcompat.widget.Toolbar;
 
import com.google.android.material.navigation.NavigationView;
 
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
 
    @Override
    protected void onCreate (Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        DrawerLayout drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        drawerLayout.setDrawerListener(toggle);
        toggle.syncState();
        NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
        navigationView.setNavigationItemSelectedListener(this);
 
    }
 
    @Override
    public void onBackPressed() {
        DrawerLayout drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        if(drawerLayout.isDrawerOpen(GravityCompat.START)) {
            drawerLayout.closeDrawer(GravityCompat.START);
        } else {
            super.onBackPressed();
        }
    }
 
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.nav_drawer, menu);
        return true;
    }
 
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        if(id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
 
    public boolean onNavigationItemSelected(MenuItem item) {
        int id = item.getItemId();
        if(id == R.id.gallery) {
            Intent searchIntent = new Intent(MainActivity.this, Gallery.class);
            startActivity(searchIntent);
            overridePendingTransition(R.anim.pull_in_right, R.anim.push_out_left);
        } else if(id == R.id.fileimport) {
            Intent searchIntent = new Intent(MainActivity.this, FileImport.class);
            startActivity(searchIntent);
            overridePendingTransition(R.anim.pull_in_right, R.anim.push_out_left);
        } else if(id == R.id.slideshow) {
            Intent searchIntent = new Intent(MainActivity.this, SlideShow.class);
            startActivity(searchIntent);
            overridePendingTransition(R.anim.pull_in_right, R.anim.push_out_left);
        }
        DrawerLayout drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        drawerLayout.closeDrawer(GravityCompat.START);
        return true;
    }
 
 
}