Zoom Android Studio screen

I would like to know how to zoom with your fingers in Android Studio, that is, to do all the layout.xml (or as you call it), since on the internet I have only seen how to zoom in on a image, and I would be interested in zooming the whole screen, approaching the background, the images, the text, etc. If someone can leave some code I'd appreciate it a lot

I leave an example of code that works perfectly to zoom in on an image, and I wanted to know if it can be adapted, with a similar code example to do it in a layout

import uk.co.senab.photoview.PhotoViewAttacher;

public class MainActivity extends AppCompatActivity implements 
View.OnClickListener{

PhotoViewAttacher photoViewAttacher;

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    imagen=(ImageView)findViewById(R.id.imagen);
    photoViewAttacher=new PhotoViewAttacher(imagen);
}

I have tried to give an id to the layout and replace it with the image, that is

    layout=(ConstraintLayout)findViewById(R.id.layout);
    photoViewAttacher=new PhotoViewAttacher(layout);

But it does not work for me

Greetings