ListView Mobile App

CSVFile.java

package swindroid.suntime.calc;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;


/**
 * Created by Matthew on 28/09/2017.
 */

public class CSVFile {
    private InputStream inputStream;

    public CSVFile(InputStream inputStream)
    {
        this.inputStream = inputStream;
    }

    public ArrayList<String[]> read()
    {


        ArrayList<String []> resultList = new ArrayList<String[]>();
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
        try
        {
            String csvLine;
            while ((csvLine = reader.readLine()) != null) {
                String[] row = csvLine.split(",");
                resultList.add(row);
            }
        }
        catch(IOException ex)
        {
            throw new RuntimeException("Error in CSV file" +ex);
        }
        finally {
            try{
                inputStream.close();
            }
            catch (IOException e)
            {
                throw  new RuntimeException("Error while closing stream:"+e);
            }
        }
        return resultList;
    }

}

GeoAdapter.java

package swindroid.suntime.ui;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;

import org.w3c.dom.Text;

import java.util.ArrayList;
import java.util.List;

import swindroid.suntime.R;
import swindroid.suntime.calc.GeoLocation;

import static swindroid.suntime.R.layout.main;

/**
 * Created by Matthew on 5/10/2017.
 */

public class GeoAdapter extends ArrayAdapter<GeoLocation> {
    public GeoAdapter(Context context, ArrayList<GeoLocation> geoLocations){
        super(context, 0, geoLocations);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent)
    {
        GeoLocation geoLocation = getItem(position);

        if(convertView == null)
        {
            convertView = LayoutInflater.from(getContext()).inflate(R.layout.item_geo, parent, false);
        }
        
        TextView textViewGeoName = (TextView)convertView.findViewById(R.id.TextViewGeoName);
        TextView textViewGeoLocation = (TextView)convertView.findViewById(R.id.TextViewGeoTimeZone);

        textViewGeoName.setText("Name: " + geoLocation.getLocationName());
        textViewGeoLocation.setText("Lat/Long: " + Double.toString(geoLocation.getLatitude()) + " " +  Double.toString(geoLocation.getLongitude()));
        
        return convertView;
    }


}

Main.java

package swindroid.suntime.ui;

import java.io.InputStream;
import java.lang.reflect.Array;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.TimeZone;

import swindroid.suntime.R;
import swindroid.suntime.calc.AstronomicalCalendar;
import swindroid.suntime.calc.CSVFile;
import swindroid.suntime.calc.GeoLocation;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.DatePicker.OnDateChangedListener;
import android.widget.ListView;
import android.widget.TextView;

public class Main extends Activity 
{
	private GeoLocation currentGeoLocation;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        initializeUI();
    }

    public GeoLocation getCurrentGeoLocation()
	{
		return this.currentGeoLocation;
	}

	public void setCurrentGeoLocation(GeoLocation currentGeoLocation)
	{
		this.currentGeoLocation = currentGeoLocation;
	}

	private void initializeUI()
	{

		ArrayList<String []> tempArrayList;

		tempArrayList = readCSVFile();
		String[] tempStringArray;
		final ArrayList<GeoLocation> geoArray = new ArrayList<GeoLocation>();

		for(int i = 0; i < tempArrayList.size(); i++)
		{
			tempStringArray = tempArrayList.get(i);
			String timeZone = tempStringArray[3];
			TimeZone tz = TimeZone.getTimeZone(timeZone);
			GeoLocation geoLocation = new GeoLocation(tempStringArray[0], Double.parseDouble(tempStringArray[1]), Double.parseDouble(tempStringArray[2]), tz);
			geoArray.add(geoLocation);
		}
		GeoAdapter adapter = new GeoAdapter(getApplicationContext(), geoArray);

		ListView  geoListView = (ListView) findViewById(R.id.GeoListView);
		geoListView.setAdapter(adapter);



		geoListView.setOnItemClickListener(new android.widget.AdapterView.OnItemClickListener() {
			@Override
			public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
				GeoLocation geoLocation = geoArray.get(position);
				setCurrentGeoLocation(geoLocation);
			}
		});

		Button buttonUpdateLocation = (Button) findViewById(R.id.buttonUpdate);
		buttonUpdateLocation.setOnClickListener(new View.OnClickListener(){
			public void onClick(View v)
			{
				selectGeoLocation();
			}
		});


	}

	public void selectGeoLocation()
	{
		DatePicker dp = (DatePicker) findViewById(R.id.datePicker);
		Calendar cal = Calendar.getInstance();
		int year = cal.get(Calendar.YEAR);
		int month = cal.get(Calendar.MONTH);
		int day = cal.get(Calendar.DAY_OF_MONTH);
		dp.init(year,month,day,dateChangeHandler); // setup initial values and reg. handler
		updateTime(year, month, day);
	}


	private ArrayList<String[]> readCSVFile()
	{
		InputStream inputStream = getResources().openRawResource(R.raw.au_locations);
		CSVFile csvFile = new CSVFile(inputStream);

		return csvFile.read();

	}



	private void updateTime(int year, int monthOfYear, int dayOfMonth)
	{
		TextView textViewLocation = (TextView) findViewById(R.id.locationTV);
		GeoLocation geoLocationCurrent = getCurrentGeoLocation();
		textViewLocation.setText(geoLocationCurrent.getName());

		AstronomicalCalendar ac = new AstronomicalCalendar(geoLocationCurrent);
		ac.getCalendar().set(year, monthOfYear, dayOfMonth);
		Date srise = ac.getSunrise();
		Date sset = ac.getSunset();
		
		SimpleDateFormat sdf = new SimpleDateFormat("HH:mm");
		
		TextView sunriseTV = (TextView) findViewById(R.id.sunriseTimeTV);
		TextView sunsetTV = (TextView) findViewById(R.id.sunsetTimeTV);
		Log.d("SUNRISE Unformatted", srise+"");
		
		sunriseTV.setText(sdf.format(srise));
		sunsetTV.setText(sdf.format(sset));		
	}
	
	OnDateChangedListener dateChangeHandler = new OnDateChangedListener()
	{
		public void onDateChanged(DatePicker dp, int year, int monthOfYear, int dayOfMonth)
		{
			updateTime(year, monthOfYear, dayOfMonth);
		}	
	};


	
}