How to draw android view on Unity canvas?

Hi as per question I want draw android view on Unity canvas(maybe rawImage)

in my project I already make Android Plugin with Unity and it works.

this is the android function.

  public void PlayApplications(String pacName)
 {
   Log.d(this.getClass().getName(),"Youtuve on");
   PackageManager pm = getPackageManager();
   String packageName = pacName;
   Intent intent = pm.getLaunchIntentForPackage(packageName);

   Rect rect = new Rect(100,800,900,700);
   ActivityOptions options = ActivityOptions.makeBasic();
   ActivityOptions bounds = options.setLaunchBounds(rect);

   startActivity(intent,bounds.toBundle());
  }

Unity send android package name to android and that function launches applications as multi windows with rect size.

then I want to draw rect on Unity Canvas is there any tips or solutions?