Android Open Source - ShareManager Results Activity

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License

The source code is released under:
Copyright (c) 2013, Nelspike All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Red...
If you think the Android project ShareManager listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package share.manager.stock;
/*from  w w w  .  j a  v a  2 s  .  com*/
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Calendar;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import share.manager.adapters.CompanyAdapter;
import share.manager.connection.ConnectionThread;
import share.manager.utils.FileHandler;
import share.manager.utils.RESTFunction;
import share.manager.utils.ShareUtils;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.ProgressDialog;
import android.app.SearchManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.graphics.Color;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.preference.PreferenceManager;
import android.support.v4.app.NavUtils;
import android.support.v4.view.MenuItemCompat;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.TextView;
import android.widget.Toast;

public class ResultsActivity extends Activity implements
    OnSharedPreferenceChangeListener {

  private ProgressDialog pDiag;
  private RESTFunction currentFunction;
  private JSONArray result;
  private int position = 0;
  private ShareManager app;
  private Toast toast;
  private final ArrayList<String> ticks = new ArrayList<String>(),
      names = new ArrayList<String>(), regions = new ArrayList<String>();
  private SharedPreferences prefs;

  @SuppressLint("HandlerLeak")
  @SuppressWarnings("unchecked")
  private Handler threadConnectionHandler = new Handler() {
    @Override
    public void handleMessage(Message msg) {
      switch (currentFunction) {
        case GET_COMPANY_NAMES:
          String rec = ((ArrayList<String>) msg.obj).get(0);
          int start = rec.indexOf("(");
          rec = rec.substring(start + 1, rec.length() - 1);

          JSONObject json = null;
          try {
            json = new JSONObject(rec);
          }
          catch (JSONException e) {
            e.printStackTrace();
          }

          parseJSON(json);
          break;
        case VALIDITY_CHECK:
          String code = ((ArrayList<String>) msg.obj).get(0);

          if (!code.equals("404")) {
            String toSave = names.get(position) + "|" + ticks.get(position)
                + "|" + regions.get(position) + "|0";
            FileHandler.writeToFile(toSave);
            showAToast(names.get(position) + " successfully followed!");
          }
          else {
            showAToast("Can't follow " + names.get(position)
                + " right now. Try later.");
          }

          break;
        default:
          break;
      }
    }
  };

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.list_results);
    app = (ShareManager) getApplicationContext();
    prefs = PreferenceManager.getDefaultSharedPreferences(this);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) getActionBar()
        .setDisplayHomeAsUpEnabled(true);

    Intent intent = getIntent();
    String query = intent.getStringExtra(SearchManager.QUERY);
    try {
      query = URLEncoder.encode(query, "UTF-8");
    }
    catch (UnsupportedEncodingException e) {
      e.printStackTrace();
    }
    searchNew(query);
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.main, menu);

    SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
    MenuItem searchItem = menu.findItem(R.id.action_search);
    SearchView searchView = (SearchView) MenuItemCompat
        .getActionView(searchItem);
    searchView.setSearchableInfo(searchManager
        .getSearchableInfo(new ComponentName(getApplicationContext(),
            ResultsActivity.class)));
    searchView.setIconifiedByDefault(false); // Do not iconify the widget;
                                              // expand it by default

    return super.onCreateOptionsMenu(menu);
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
      case R.id.action_search:
        return true;
      case android.R.id.home:
        NavUtils.navigateUpFromSameTask(this);
        return true;
      case R.id.action_settings:
        Intent intent = new Intent(ResultsActivity.this, SettingsActivity.class);
        startActivity(intent);
        prefs.registerOnSharedPreferenceChangeListener(this);
        return true;
      default:
        return super.onOptionsItemSelected(item);
    }
  }

  private void searchNew(String query) {
    String link = ShareUtils.buildSearchLink(query);

    try {
      link = new String(link.getBytes(), "UTF-8");
    }
    catch (UnsupportedEncodingException e) {
      e.printStackTrace();
    }

    pDiag = ProgressDialog.show(ResultsActivity.this, "",
        "Fetching results...", true);

    currentFunction = RESTFunction.GET_COMPANY_NAMES;

    ConnectionThread dataThread = new ConnectionThread(link,
        threadConnectionHandler, ResultsActivity.this, currentFunction);
    dataThread.start();
  }

  private void parseJSON(JSONObject query) {
    JSONObject resultsSet = null;

    try {
      resultsSet = query.getJSONObject("ResultSet");
    }
    catch (JSONException e1) {
      e1.printStackTrace();
    }

    result = null;

    try {
      result = resultsSet.getJSONArray("Result");
    }
    catch (JSONException e) {

    }

    int amount = result.length();

    for (int i = 0; i < amount; i++) {
      try {
        JSONObject innerObject = result.getJSONObject(i);
        String ticker = innerObject.getString("symbol");

        if (ticker.contains("MX")) {
          amount--;
          result = ShareUtils.remove(i, result);
        }
      }
      catch (JSONException e) {
        // TODO: To handle later
      }
    }

    fillList();
  }

  private void fillList() {
    ListView listResults = (ListView) findViewById(R.id.list_search_results);

    if (result.length() == 0) {
      listResults.setLayoutParams(new LinearLayout.LayoutParams(0,0));
      LinearLayout frame = (LinearLayout) findViewById(R.id.base_results);
      TextView text = new TextView(ResultsActivity.this);
      text.setId(0xfefefefe);
      text.setText("No search results :(");
      text.setTextColor(Color.WHITE);
      text.setTextSize(25.0f);
      text.setGravity(Gravity.CENTER);
      frame.addView(text, new LayoutParams(LayoutParams.MATCH_PARENT,
          LayoutParams.MATCH_PARENT));
    }
    else {
      for (int i = 0; i < result.length(); i++) {
        try {
          JSONObject innerObject = result.getJSONObject(i);
          ticks.add(innerObject.getString("symbol"));
          names.add(innerObject.getString("name"));
          regions.add(innerObject.getString("exchDisp"));
        }
        catch (JSONException e) {
          // TODO: To handle later
        }
      }

      listResults.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
            long arg3) {
          position = arg2;
          currentFunction = RESTFunction.VALIDITY_CHECK;

          int daysToBacktrack = app.getDays() * -1;

          Calendar backtrack = Calendar.getInstance();
          backtrack.add(Calendar.DATE, daysToBacktrack);
          Calendar current = Calendar.getInstance();

          ConnectionThread dataThread = new ConnectionThread(app.yahooChart
              + ShareUtils.createChartLink(backtrack.get(Calendar.MONTH),
                  backtrack.get(Calendar.DAY_OF_MONTH),
                  backtrack.get(Calendar.YEAR), current.get(Calendar.MONTH),
                  current.get(Calendar.DAY_OF_MONTH),
                  current.get(Calendar.YEAR), app.getPeriodicity(),
                  ticks.get(arg2)), threadConnectionHandler,
              ResultsActivity.this, currentFunction);
          dataThread.start();
        }
      });

      listResults.setAdapter(new CompanyAdapter(ResultsActivity.this,
          R.layout.company_box, names.toArray(new String[names.size()]),
          regions.toArray(new String[regions.size()]), null, null));
    }
    pDiag.dismiss();
  }

  private void showAToast(String st) {
    try {
      if (toast != null) {
        toast.getView().isShown();
        toast.setText(st);
      }
      else {
        toast = Toast.makeText(ResultsActivity.this, st, Toast.LENGTH_SHORT);
      }
    }
    catch (Exception e) {
      toast = Toast.makeText(ResultsActivity.this, st, Toast.LENGTH_SHORT);
    }
    toast.show();
  }

  @Override
  public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
    if (key.equals(app.KEY_PREF_PERIODICITY)) app.setPeriodicity(prefs
        .getString(key, "d").charAt(0));
    else if (key.equals(app.KEY_PREF_DAYS)) app.setDays(Integer.parseInt(prefs
        .getString(key, "30")));
    else if (key.equals(app.KEY_PREF_CURRENCY)) app.setCurrency(prefs
        .getString(key, "usd"));
  }
}
Java Source Code List
