Я использую навигационный ящик и нижнюю панель навигации в приложении. Когда я генерирую намерение из навигационной панели, нажимая «пользователь», он переходит к UserActivity, но тогда нижняя навигация не отображается на экране. Класс, в котором я использовал навигационную панель и нижнюю панель навигации, находится ниже
import android.content.Intent;
import android.os.Bundle;
import android.view.MenuItem;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.view.GravityCompat;
import androidx.drawerlayout.widget.DrawerLayout;
import androidx.navigation.NavController;
import androidx.navigation.Navigation;
import androidx.navigation.ui.AppBarConfiguration;
import androidx.navigation.ui.NavigationUI;
import com.google.android.material.bottomnavigation.BottomNavigationView;
import com.google.android.material.navigation.NavigationView;
public class NavigActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener{
private DrawerLayout drawerLayout;
private NavigationView navigationView;
private BottomNavigationView bottomNavigationView;
private NavController navController;
private AppBarConfiguration appBarConfiguration;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_navig);
drawerLayout = findViewById(R.id.drawer);
navigationView = findViewById(R.id.navigationView);
navigationView.setNavigationItemSelectedListener(this);
bottomNavigationView = findViewById(R.id.bottomNavigationView);
navController = Navigation.findNavController(this, R.id.nav_host_fragment);
appBarConfiguration = new AppBarConfiguration.Builder(new int[]{R.id.home, R.id.addNewProduct, R.id.notifications,R.id.user_details,R.id.settings,R.id.help})
.setDrawerLayout(drawerLayout)
.build();
NavigationUI.setupActionBarWithNavController(this, navController,appBarConfiguration);
NavigationUI.setupWithNavController(navigationView, navController);
navigationView.setNavigationItemSelectedListener(this);
NavigationUI.setupWithNavController(bottomNavigationView, navController);
}
public boolean onSupportNavigateUp(){
return NavigationUI.navigateUp(navController, appBarConfiguration);
}
public void onBackPressed(){
if(drawerLayout.isDrawerOpen(GravityCompat.START)){
drawerLayout.closeDrawer(GravityCompat.START);
}
else
super.onBackPressed();
}
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
int id= menuItem.getItemId();
if(id == R.id.user_details)
{
Intent intent = new Intent(NavigActivity.this, UserActivity.class);
startActivity(intent);
}
if(id == R.id.settings)
{
Toast.makeText(this, "Settings ", Toast.LENGTH_SHORT).show();
}
if(id == R.id.help)
{
Toast.makeText(this, "Help", Toast.LENGTH_SHORT).show();
}
DrawerLayout drawer = (DrawerLayout)findViewById(R.id.drawer);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
Макет вышеупомянутого класса
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout
android:id="@+id/drawer"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".NavigActivity">
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<fragment
android:id="@+id/nav_host_fragment"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="0dp"
android:layout_height="0dp"
app:defaultNavHost="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:navGraph="@navigation/main" />
<com.google.android.material.bottomnavigation.BottomNavigationView
android:background="@color/colorAccent"
app:itemIconTint="@color/nav"
app:itemTextColor="@color/nav"
app:menu="@menu/main"
android:id="@+id/bottomNavigationView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent">
</com.google.android.material.bottomnavigation.BottomNavigationView>
</androidx.constraintlayout.widget.ConstraintLayout>
<com.google.android.material.navigation.NavigationView
app:menu="@menu/side_main"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/navigationView"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_main"
></com.google.android.material.navigation.NavigationView>
</androidx.drawerlayout.widget.DrawerLayout>