Cocktails

package at.dtr.cocktails;

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

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.ListActivity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends ListActivity implements Runnable {
    /** Called when the activity is first created. */
    InputStream is;
    ArrayList<String> cListArray = new ArrayList<String>();
    ArrayList<String> cDetailsArray = new ArrayList<String>();
    JSONObject json_data;
    private ProgressDialog pd;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Kontrolle, ob eine Internetverbindung aufgebaut ist
        if (AppStatus.getInstance(this).isOnline(this)) {

            // ProgressDialog wird erstellt
            pd = ProgressDialog.show(this, "", "loading...", true, false);

            // neuer Thread wird erstellt
            Thread thread = new Thread(this);
            // nach thread.start() wird die run()-Methode ausgeführt
            thread.start();


        } else {
            Toast.makeText(this, R.string.e_connection, 10000).show();
            Log.e("log_tag", "No network connection");
        }

    }

    public void run() {
        // TODO Auto-generated method stub

        String IP = "192.168.1.108";
        String PhpFile = "getdata.php";

        // Liste der Cocktails
        String cList = "";
        // Details des jeweiligen Cocktails
        String cDetails = "";

        ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();

        // Verbindung zur PHP-Datei wird hergestellt
        try {
            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost("http://" + IP + "/" + PhpFile);
            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            HttpResponse response = httpclient.execute(httppost);
            HttpEntity entity = response.getEntity();
            is = entity.getContent();
        } catch (Exception e) {
            Log.e("log_tag", "Fehler bei der HTTP-Verbindung " + e.toString());
        }

        // die Tabellendaten, die von der PHP-Datei ausgelesen wurden, werden in
        // den String 'cList' gespeichert
        try {
            BufferedReader reader = new BufferedReader(new InputStreamReader(
                    is, "iso-8859-1"), 8);
            StringBuilder sb = new StringBuilder();
            String line = null;
            while ((line = reader.readLine()) != null) {
                sb.append(line + "n");
            }
            is.close();
            cList = sb.toString();
        } catch (Exception e) {
            Log.e("log_tag", "Error converting result " + e.toString());
        }

        // String 'cList' wird in ein JSON-Array konvertiert
        try {
            JSONArray jArray = new JSONArray(cList);
            for (int i = 0; i < jArray.length(); i++) {
                json_data = jArray.getJSONObject(i);
                cListArray.add((String) json_data.get("name"));
            }

        } catch (JSONException e) {
            Log.e("log_tag", "Error parsing data " + e.toString());
        }
        // leere Nachricht wird an den Handler gesendet
        handler.sendEmptyMessage(0);

    }

    // neuer Handler wird erstellt
    private Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {

            // ProgessDialog wird beendet und fillList() wird ausgeführt
            pd.dismiss();
            fillList();
        }
    };



    // Array 'cListArray' wird in die listView geschrieben
    public void fillList() {

        this.setListAdapter(new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_1, cListArray));
    }


    // Array 'cListArray' wird neu befüllt
    public void refreshList(){

        if (AppStatus.getInstance(this).isOnline(this)) {
            cListArray.clear();
            pd = ProgressDialog.show(this, "", "loading...", true, false);
            Thread thread = new Thread(this);
            thread.start();
        } else {
            Toast.makeText(this, R.string.e_connection, 10000).show();
            Log.e("log_tag", "No network connection");
            }
    }



    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) {
        String item = (String) getListAdapter().getItem(position);
        Toast.makeText(this, item + " selected", Toast.LENGTH_SHORT).show();
    }





    // Options Menu wird generiert, Daten kommen von /res/menu/menu.xml
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.menu, menu);
        return true;
    }

    // onClickListener fürs Options Menu
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (item.getItemId() == R.id.refresh) {
            refreshList();
        }
        if (item.getItemId() == R.id.about) {
            AboutDialog about = new AboutDialog(this);
            about.setTitle(R.string.om_about_heading);
            about.show();
        }
        return true;
    }

}