How to implement Processing Sketch without PFragment ?

Hello everybody !

Since P3, it seems that the object PFragment is not available :

import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;


import processing.core.*;
import processing.android.P;


public class MainActivity extends AppCompatActivity {


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

        FragmentManager fragmentManager = getFragmentManager();
        PApplet sketch = new Sketch();
        PFragment fragment = new PFragment();
        fragment.setSketch(sketch);
        fragmentManager.beginTransaction().replace(R.id.container, fragment).commit();
    }
}

How can I do to insert my Processing Sketch in my Android Studio project ?

Thank you, Regards,

Arthur