MainActivity.kt

package ca.medontime.endlessrunner

import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import androidx.navigation.fragment.NavHostFragment
import androidx.navigation.ui.setupWithNavController
import com.google.android.material.bottomnavigation.BottomNavigationView
import ca.medontime.endlessrunner.databinding.ActivityMainBinding

class MainActivity : AppCompatActivity() {
    
    private lateinit var binding: ActivityMainBinding
    
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityMainBinding.inflate(layoutInflater)
        setContentView(binding.root)
        
        setupNavigation()
    }
    
    private fun setupNavigation() {
        val navHostFragment = supportFragmentManager
            .findFragmentById(R.id.nav_host_fragment) as NavHostFragment
        val navController = navHostFragment.navController
        
        binding.bottomNavigation.setupWithNavController(navController)
    }
}