Нижняя панель навигации не отображается при создании намерения из окна навигации для других действий - PullRequest
0 голосов
/ 23 апреля 2020

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>
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