Для роботы AsyncTask нужно нажать два раза на кнопку

должен запускаться при нажатии на кнопку. Но для того чтобы он сработал, при запуске программы первый раз, нужно два раза нажать кнопку. Как это исправить?

public class MainActivity extends AppCompatActivity {

    private EditText editTextCity;
    private  EditText editTextNumber;
    private Spinner spinnerCounties;
    private static boolean doesExist;
    private static int NumberOfDays;
    private static String city;
    private static int id;
    private static String number;

    private static ArrayList<WeatherDay> weatherDays;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        editTextCity = findViewById(R.id.editTextCity);
        editTextNumber=findViewById(R.id.editTextNumber);
        spinnerCounties=findViewById(R.id.spinner);
    }

    public void onClickCheckWeather(View view) throws ExecutionException, InterruptedException {
        city = editTextCity.getText().toString().trim();
        id =spinnerCounties.getSelectedItemPosition();
        number=editTextNumber.getText().toString();

        if (!city.isEmpty()&& !number.isEmpty()&&(Integer.parseInt(number)>0 && Integer.parseInt(number)<17)) {
            NumberOfDays=Integer.parseInt(editTextNumber.getText().toString());
            String[] countries={"None","AT","AR","BR","CA","CN","HR","CZ","EG","FR","DE","GR","IT","JP","MX","ME","NL","PL","PT","RU","ES","UA","UK","US"};

            String country=countries[id];

            String query="";
            if (country=="None") {
                query = String.format("https://api.weatherbit.io/v2.0/forecast/daily?city=%s&key=4e2d6343c40d4652b80a70190ff5ac87", city);
            } else {
                query = String.format("https://api.weatherbit.io/v2.0/forecast/daily?city=%s&country=%s&key=4e2d6343c40d4652b80a70190ff5ac87", city,country);
            }
            weatherDays=new ArrayList<>();
            DownloadTask task = new DownloadTask(this);
            task.execute(query);






        } else {
            Toast.makeText(MainActivity.this, "All fields should be filled correctly", Toast.LENGTH_SHORT).show();
        }
    }
    public static class DownloadTask extends AsyncTask<String, Void, String> {
            private Context context;
            public DownloadTask(Context context) {
                this.context=context;
            }
        @Override
        protected String doInBackground(String... strings) {
            StringBuilder result = new StringBuilder();
            URL url = null;
            HttpURLConnection urlConnection = null;
            try {
                url = new URL(strings[0]);
                urlConnection = (HttpURLConnection) url.openConnection();
                InputStream in = urlConnection.getInputStream();
                InputStreamReader reader = new InputStreamReader(in);
                BufferedReader breader = new BufferedReader(reader);
                String line = breader.readLine();
                while (line != null) {
                    result.append(line);
                    line = breader.readLine();
                }
            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                if (urlConnection != null) {
                    urlConnection.disconnect();
                }
            }
            return result.toString();
        }

        @Override
        protected void onPostExecute(String s) {
            super.onPostExecute(s);
            try {
                StringBuilder builder=new StringBuilder();
                JSONObject jsonObject = new JSONObject(s);
                JSONArray jsonArray=jsonObject.getJSONArray("data");
                for(int i=0;i<NumberOfDays;i++) {
                    JSONObject object = jsonArray.getJSONObject(i);
                    String date=object.getString("datetime");
                    String mintemp = object.getString("min_temp");
                    String maxtemp=object.getString("max_temp");
                    String descr=object.getJSONObject("weather").getString("description");
                    String result = date+",."+mintemp+",."+maxtemp+",."+descr;

                    WeatherDay weatherDay = new WeatherDay(result);

                    weatherDays.add(weatherDay);

                }
                for(WeatherDay weatherDay:weatherDays) {
                    builder.append(weatherDay);
                }

                if (weatherDays.isEmpty()) {
                    doesExist=false;
                } else {
                    doesExist=true;
                }
                if (!doesExist) {

                                    Toast.makeText(context, "This city does not exist", Toast.LENGTH_SHORT).show();
                } else {

                    Intent intent = new Intent(context, Main2Activity.class);
                    intent.putExtra("city", city);
                    intent.putExtra("number", number);
                    intent.putExtra("country", String.valueOf(id));
                    context.startActivity(intent);
                }

            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
    }