Activity wrapper for any fragment

activity_fragment_container.xml

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/main_container"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

FragmentContainerActivity.kt

package com.example

import android.content.Context
import android.content.Intent
import android.os.Bundle
import androidx.fragment.app.Fragment
import com.example.R
import com.example.BaseActivity

class FragmentContainerActivity : BaseActivity() {

    companion object {
        inline fun fromFactory(
            context: Context,
            crossinline createFragment: () -> Fragment
        ): Intent {
            return Intent(context, FragmentContainerActivity::class.java).apply {
                putFragmentFactory(createFragment)
            }
        }
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_fragment_container)

        if (savedInstanceState == null) {
            val fragmentFactory = intent.getFragmentFactory()
            this.changeFragment(fragmentFactory.createFragment())
                .commit()
        }
    }
}

FragmentFactory.kt

package com.example

import android.content.Context
import android.content.Intent
import androidx.annotation.StringRes
import androidx.fragment.app.Fragment
import java.io.Serializable

const val FRAGMENT_FACTORY = "fragment_factory"

interface FragmentFactory : Serializable {
    fun createFragment(): Fragment
}

inline fun Intent.putFragmentFactory(crossinline createFragment: () -> Fragment) {
    val factory = object : FragmentFactory {
        override fun createFragment(): Fragment = createFragment()
    }
    putExtra(FRAGMENT_FACTORY, factory)
}

fun Intent.getFragmentFactory(): FragmentFactory {
    return getSerializableExtra(FRAGMENT_FACTORY) as FragmentFactory
}