package com.example.shakecraft import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import androidx.fragment.app.Fragment import com.google.android.material.bottomnavigation.BottomNavigationView class MainActivity : AppCompatActivity() { lateinit var bottomNav : BottomNavigationView override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) loadFragment(HomeFragment()) bottomNav = findViewById(R.id.bottomNav) as BottomNavigationView bottomNav.setOnItemSelectedListener { when (it.itemId) { R.id.home -> { loadFragment(HomeFragment()) true } R.id.inventory -> { loadFragment(InventoryFragment()) true } R.id.plus -> { loadFragment(PlusFragment()) true } else -> false } } } private fun loadFragment(fragment: Fragment){ val transaction = supportFragmentManager.beginTransaction() transaction.replace(R.id.container,fragment) transaction.commit() } }