BestPractices.kt

package com.test

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.LayoutInflater
import androidx.viewbinding.ViewBinding
import com.test.databinding.ActivityMainBinding

abstract class BindingActivity<T: ViewBinding>(val name: String): AppCompatActivity(){

    private val binding by lazy {
        loadBinding<T>(name)
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        with(binding) {
            setContentView(binding.root)
            setup(this)
        }
    }

    abstract fun setup(binding: T)
}

private fun <T> AppCompatActivity.loadBinding(className: String): T {
    return Class.forName("$packageName.databinding.$className")
        .getMethod("inflate", LayoutInflater::class.java)
        .invoke(null, layoutInflater) as T
}

class MainActivity : BindingActivity<ActivityMainBinding>("ActivityMainBinding") {

    override fun setup(binding: ActivityMainBinding) {
        binding.texto.text = "testtt"
    }
}