package com.example.bottomnavigationbar;

import android.os.Bundle;
import android.view.MenuItem;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import com.google.android.material.bottomnavigation.BottomNavigationView;
import com.google.android.material.navigation.NavigationBarView;

public class MainActivity extends AppCompatActivity implements NavigationBarView.OnItemSelectedListener {

    BottomNavigationView bottomNavigationView;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        bottomNavigationView = findViewById(R.id.bottomNavigationView);
        bottomNavigationView.setOnItemSelectedListener(this);
        bottomNavigationView.setSelectedItemId(R.id.agenda);
    }

    FirstFragment firstFragment = new FirstFragment();
    SecondFragment secondFragment = new SecondFragment();
    ThirdFragment thirdFragment = new ThirdFragment();

    @Override
    public boolean onNavigationItemSelected(@NonNull MenuItem item)
    {
        if (item.getItemId() == R.id.agenda) {
            getSupportFragmentManager().beginTransaction().replace(R.id.flFragment, firstFragment).commit();
            return true; }
        if (item.getItemId() == R.id.manage) {
            getSupportFragmentManager().beginTransaction().replace(R.id.flFragment, secondFragment).commit();
            return true; }
        if (item.getItemId() == R.id.camera) {
            getSupportFragmentManager().beginTransaction().replace(R.id.flFragment, thirdFragment).commit();
            return true; }

        return false;
    }
}