Why listview items do not occupy the entire row - android

I have created a listview in which I fill with information from a database and I add a function to each element click

adapter = new ArrayAdapter(getApplicationContext(), R.layout.my_cutom_layout, villes);
                listV.setAdapter(adapter);
                listV.setBackgroundColor(Color.BLUE);
                listV.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                        Toast.makeText(getApplicationContext(), "On va à : "+(position+1)+" "+villes.get(position), Toast.LENGTH_SHORT).show();
                        String [] villeData = {getZone,""+(position+1) ,villes.get(position)};

                        intent.putExtra("ville", villeData);
                        startActivity(intent);

                    }
                });

But when viewing the data, the click only works on top of the text and the whole row does not work the click