Android Open Source - project-owl_android Finance Activity

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License

The source code is released under:

MIT License

Java Source Code

package com.isaaclean.projectowl;
/* w  ww  .j a  v a2  s. com*/
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;

import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

public class FinanceActivity extends Activity {
  Context context;
  String feedUrl = "http://cs121owl.appspot.com/finance.json";
  
  ListView itemList;
  ArrayList<String> itemArrayList = new ArrayList<String>();
  ArrayAdapter<String> itemAdapter;
  
  ListView descList;
  ArrayList<String> descArrayList = new ArrayList<String>();
  ArrayAdapter<String> descAdapter;
  
  ListView busList;
  ArrayList<String> busArrayList = new ArrayList<String>();
  ArrayAdapter<String> busAdapter;
  
  ListView catList;
  ArrayList<String> catArrayList = new ArrayList<String>();
  ArrayAdapter<String> catAdapter;
  
  ListView transList;
  ArrayList<String> transArrayList = new ArrayList<String>();
  ArrayAdapter<String> transAdapter;
  
  ListView amountList;
  ArrayList<Float> amountArrayList = new ArrayList<Float>();
  ArrayAdapter<Float> amountAdapter;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.fragment_finance);
    context = this;
    
    itemList = (ListView) findViewById(R.id.itemList);    
    itemAdapter = new ArrayAdapter<String>(this, R.layout.finance_list_item, itemArrayList);
    itemList.setAdapter(itemAdapter);
    
    descList = (ListView) findViewById(R.id.descList);    
    descAdapter = new ArrayAdapter<String>(this, R.layout.finance_list_item, descArrayList);
    descList.setAdapter(descAdapter);
    
    busList = (ListView) findViewById(R.id.busList);    
    busAdapter = new ArrayAdapter<String>(this, R.layout.finance_list_item, busArrayList);
    busList.setAdapter(busAdapter);
    
    catList = (ListView) findViewById(R.id.catList);    
    catAdapter = new ArrayAdapter<String>(this, R.layout.finance_list_item, catArrayList);
    catList.setAdapter(catAdapter);
    
    transList = (ListView) findViewById(R.id.transList);    
    transAdapter = new ArrayAdapter<String>(this, R.layout.finance_list_item, transArrayList);
    transList.setAdapter(transAdapter);
    
    amountList = (ListView) findViewById(R.id.amountList);    
    amountAdapter = new ArrayAdapter<Float>(this, R.layout.finance_list_item, amountArrayList);
    amountList.setAdapter(amountAdapter);
    
    ItemListTask loaderTask = new ItemListTask();
    loaderTask.execute();
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.finance, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
      // Handle presses on the action bar items
      switch (item.getItemId()) {
          case R.id.action_new_trans:
              openNewTrans();
              return true;
          case R.id.action_settings:
              openSettings();
              return true;
          default:
              return super.onOptionsItemSelected(item);
      }
  }
      
  private void openNewTrans(){
      Intent intent = new Intent(this, NewTransActivity.class);
      startActivity(intent);
  }
  
  private void openSettings(){
    Toast.makeText(this, "You pressed \"Settings\"! :)", Toast.LENGTH_SHORT).show();
  }
  
  private class ItemListTask extends AsyncTask<Void, Void, Void>{    
    ProgressDialog dialog;
    
    @Override
    protected void onPreExecute(){
      dialog = new ProgressDialog(context);
      dialog.setTitle("Loading items...");
      dialog.show();
      super.onPreExecute();
    }
    
    @Override
    protected Void doInBackground(Void... params){
      HttpClient client = new DefaultHttpClient();
      HttpGet getRequest = new HttpGet(feedUrl);
      
      try{
        HttpResponse response = client.execute(getRequest);
        StatusLine statusLine = response.getStatusLine();
        int statusCode = statusLine.getStatusCode();
        
        if(statusCode != 200){
          return null;
        }
        
        InputStream jsonStream = response.getEntity().getContent();
        BufferedReader reader = new BufferedReader(new InputStreamReader(jsonStream));
        StringBuilder builder = new StringBuilder();
        String line;
        
        while((line = reader.readLine()) != null){
          builder.append(line);
        }
        
        String jsonData = builder.toString();
        
        //Start reading JSON
        Log.i("ProjectOwl", jsonData);
        JSONObject json = new JSONObject(jsonData);
        JSONArray items = json.getJSONArray("items");
        
        itemArrayList.add("Date");
        descArrayList.add("Desc.");
        busArrayList.add("Business");
        catArrayList.add("Category");
        transArrayList.add("Trans.");
        amountArrayList.add(Float.parseFloat("0.0"));
        
        for(int i=0; i < items.length(); ++i){
          JSONObject item = items.getJSONObject(i);
          itemArrayList.add(item.getString("date"));
          descArrayList.add(item.getString("description"));
          busArrayList.add(item.getString("business"));
          catArrayList.add(item.getString("category"));
          transArrayList.add(item.getString("transType"));
          amountArrayList.add(Float.parseFloat(item.getString("amount")));
        }
      }catch(ClientProtocolException e){
        e.printStackTrace();
      }catch(IOException e){
        e.printStackTrace();
      }catch(JSONException e){
        e.printStackTrace();
      }
      return null;
    }
    
    @Override
    protected void onPostExecute(Void result){
      dialog.dismiss();
      itemAdapter.notifyDataSetChanged();
      descAdapter.notifyDataSetChanged();
      busAdapter.notifyDataSetChanged();
      catAdapter.notifyDataSetChanged();
      transAdapter.notifyDataSetChanged();
      amountAdapter.notifyDataSetChanged();
      super.onPostExecute(result);
    }
  }
}

Java Source Code List

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