MainActivity.java

package sengvall.flwebb.se.myweather;

import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

import net.aksingh.owmjapis.CurrentWeather;
import net.aksingh.owmjapis.OpenWeatherMap;

import org.json.JSONException;

import java.io.IOException;
import java.net.MalformedURLException;
import java.util.Date;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        new RetrieveFeedTask().execute();

    }


    class RetrieveFeedTask extends AsyncTask<Void, Void, CurrentWeather> {

        private Exception exception;

        protected CurrentWeather doInBackground(Void... voids) {
            try {
                // declaring object of "OpenWeatherMap" class
                OpenWeatherMap owm = new OpenWeatherMap(OpenWeatherMap.Units.METRIC, OpenWeatherMap.Language.SWEDISH, "");

                // getting current weather data for the "London" city
                CurrentWeather cwd = null;
                cwd = owm.currentWeatherByCityName("Luntan Lundstorp");
                return cwd;
            } catch (Exception e) {
                this.exception = e;
                return null;
            }
        }

        protected void onPostExecute(CurrentWeather cwd) {
            if (cwd.isValid()) {

                Date now = new java.util.Date(System.currentTimeMillis());
                Date sunriseDate = cwd.getSysInstance().getSunriseTime();
//            String sunrise = new java.text.SimpleDateFormat("HH:mm:ss").format(sunriseDate);
                Date sunsetDate = cwd.getSysInstance().getSunsetTime();

                if (now.before(sunriseDate))
                    System.out.println("Solen har inte gått upp.");
                else if (now.after(sunriseDate) && now.before(sunsetDate))
                    System.out.println("Solen är uppe.");
                else
                    System.out.println("Solen har gått ner.");

                if (cwd.hasCityName()) {
                    //printing city name from the retrieved data
                    System.out.println(cwd.getCityName());
                }

                System.out.println(cwd.getSysInstance().getCountryCode());

                if(cwd.getWeatherInstance(0).hasWeatherDescription())
                    System.out.println(cwd.getWeatherInstance(0).getWeatherDescription());

                String temp = "--";
                if (cwd.getMainInstance().hasTemperature()) {
                    int currCelsius = (int) Math.round(cwd.getMainInstance().getTemperature());
                    temp = currCelsius + "";
                }

                // printing the max./min. temperature
                System.out.println(temp + "\u00B0" + "C");
            }
        }
    }

}