private ArrayList<Place> nearbyPlaces;

button_list.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if(nearbyPlaces.size() > 0){
                Intent intent = new Intent(MainActivity.this, PlaceList.class);
                intent.putExtra("nearbyPlaces", nearbyPlaces);
                startActivity(intent);
            }
            else{
                debugMessage("No establishment to show");
            }
        }
    });