Android Open Source - cellar-communicator Retrieve J S O N

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License

The source code is released under:
GNU General Public License
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Java Source Code

package com.vinit.orderplacer;
//w ww. jav a2 s.  co m
import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.AsyncTask;
import android.text.InputType;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.ScrollView;
import android.widget.TextView;
import android.widget.Toast;

public class RetrieveJSON extends AsyncTask<Void, Void, String> {
  Context context;
  LinearLayout parent;
  List<LinearLayout> rowContainers = new ArrayList<LinearLayout>();
  List<TextView> productNames = new ArrayList<TextView>();
  List<Button> inc = new ArrayList<Button>();
  List<EditText> productCount = new ArrayList<EditText>();
  List<Button> dec = new ArrayList<Button>();
  List<TextView> cost = new ArrayList<TextView>();
  Button submit_button, back_button;
  DumpJSON dumptask;
  IPGetter get_ip;
  String category, shared_data, salesman, party, response;
  HttpClient httpClient;
  HttpPost httpPost;
  ProgressDialog dialog;

  public RetrieveJSON(Context context, LinearLayout parent, String category,
      String shared_data, String salesman, String party) {
    this.context = context;
    this.parent = parent;
    this.category = category;
    this.shared_data = shared_data;
    this.salesman = salesman;
    this.party = party;
    dialog = new ProgressDialog(context);
  }

  public static LinearLayout.LayoutParams getBasicParams(float weight) {
    return new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT,
        LayoutParams.WRAP_CONTENT, weight);
  }

  @Override
  protected void onPreExecute() {
    dialog.setMessage("Loading");
    dialog.show();
  }

  @Override
  protected String doInBackground(Void... arg0) {
    get_ip = new IPGetter();
    httpClient = new DefaultHttpClient(new BasicHttpParams());
    httpPost = new HttpPost(get_ip.getIP() + "db.php");
    JSONObject sendObj = new JSONObject();
    try {
      sendObj.put("category", category);
      httpPost.setEntity(new StringEntity(sendObj.toString()));
      httpPost.setHeader("Content-Type", "application/json");
      httpPost.setHeader("Accept-Encoding", "application/json");
      httpPost.setHeader("Accept-Language", "en-US");
      HttpResponse httpResponse = httpClient.execute(httpPost);
      HttpEntity entity = httpResponse.getEntity();
      response = EntityUtils.toString(entity);
      return response;
    } catch (Exception e) {
      e.printStackTrace();
      return "";
    }
  }

  @Override
  protected void onPostExecute(String s) {
    if (dialog.isShowing()) {
      dialog.dismiss();
    }

    JSONArray jArr;
    final JSONArray jOutArr = new JSONArray();
    JSONObject jObj;
    LinearLayout.LayoutParams buttonParams = new LinearLayout.LayoutParams(
        LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, 0.5f);
    buttonParams.setMargins(40, 20, 40, 10);

    /*
     * RETAIN PREVIOUS ARRAY
     */

    try {
      jArr = new JSONArray(s);
      if (shared_data != null) {
        JSONArray jtemp = new JSONArray(shared_data);
        for (int n = 0; n < jtemp.length(); n++) {
          jOutArr.put(jtemp.get(n));
        }

      }

      back_button = new Button(context);
      back_button.setLayoutParams(buttonParams);
      back_button.setBackgroundResource(R.drawable.light_selector);
      back_button.setTextColor(Color.WHITE);
      back_button.setText("Add more");

      /*
       * ADD MORE OBJECTS
       */

      back_button.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {

          JSONObject jOutObj;
          int i = 0;

          // TODO: replace with for
          while (true) {

            jOutObj = new JSONObject();
            try {

              if (productCount.get(i).getText().toString()
                  .equals("0")) {
                i++;
                continue;
              }
              jOutObj.put("category", category);
              jOutObj.put("object", productNames.get(i).getText()
                  .toString());
              jOutObj.put("count", productCount.get(i).getText()
                  .toString());
              jOutObj.put("price", Integer.toString(Integer.parseInt(cost.get(i).getText().toString())));
              jOutArr.put(jOutObj);
            } catch (JSONException e) {
              e.printStackTrace();
            } catch (IndexOutOfBoundsException e) {
              break;
            }

            i++;
          }

          Intent in = new Intent(context, CategoryList.class);

          in.putExtra("data", jOutArr.toString());
          in.putExtra("salesman", salesman);
          in.putExtra("party", party);
          context.startActivity(in);
        }

      });

      /*
       * I'M DONE
       */

      submit_button = new Button(context);
      submit_button.setLayoutParams(buttonParams);
      submit_button.setBackgroundResource(R.drawable.dark_selector);
      submit_button.setTextColor(Color.WHITE);
      submit_button.setText("Submit");

      submit_button.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
          JSONObject jOutObj;
          int i = 0;
          while (true) {

            jOutObj = new JSONObject();
            try {
              if (productCount.get(i).getText().toString()
                  .equals("0")) {
                i++;
                continue;
              }

              jOutObj.put("category", category);
              jOutObj.put("object", productNames.get(i).getText()
                  .toString());
              jOutObj.put("count", productCount.get(i).getText()
                  .toString());
              jOutObj.put("price", Integer.toString(Integer.parseInt(cost.get(i).getText().toString())));
    
              jOutArr.put(jOutObj);
            } catch (JSONException e) {
              e.printStackTrace();
            } catch (IndexOutOfBoundsException e) {
              break;
            }

            i++;
          }

          Intent in = new Intent(context, SummaryActivity.class);

          in.putExtra("data", jOutArr.toString());
          in.putExtra("salesman", salesman);
          in.putExtra("party", party);
          context.startActivity(in);

          //

        }

      });

      ScrollView scroll = new ScrollView(context);
      scroll.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
          LayoutParams.MATCH_PARENT));

      LinearLayout scroll_contain = new LinearLayout(context);
      scroll_contain.setLayoutParams(new LinearLayout.LayoutParams(
          LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
      scroll_contain.setOrientation(LinearLayout.VERTICAL);

      for (int i = 0; i < jArr.length(); i++) {
        jObj = jArr.getJSONObject(i);
        rowContainers.add(new LinearLayout(context));
        rowContainers.get(i).setLayoutParams(
            new LinearLayout.LayoutParams(
                LayoutParams.MATCH_PARENT,
                LayoutParams.WRAP_CONTENT));
        rowContainers.get(i).setOrientation(LinearLayout.HORIZONTAL);

        productNames.add(new TextView(context));
        productNames.get(i).setLayoutParams(getBasicParams(0.6f));
        productNames.get(i).setText(jObj.getString("name"));

        productCount.add(new EditText(context));
        productCount.get(i).setLayoutParams(getBasicParams(0.8f));
        productCount.get(i).setMinEms(3);
        productCount.get(i).setInputType(InputType.TYPE_CLASS_NUMBER);
        productCount.get(i).setGravity(Gravity.CENTER);
        productCount.get(i).setText("0");

        cost.add(new TextView(context));
        cost.get(i).setLayoutParams(getBasicParams(0.9f));
        cost.get(i).setText(Integer.toString(jObj.getInt("price")));

        dec.add(new Button(context));
        dec.get(i).setLayoutParams(getBasicParams(0.9f));
        dec.get(i).setText("<");
        dec.get(i).setTextColor(Color.parseColor("#0aa29c"));
        dec.get(i).setBackgroundColor(Color.TRANSPARENT);
        dec.get(i).setOnClickListener(
            new CounterOnClickListener(productCount.get(i), false));

        inc.add(new Button(context));
        inc.get(i).setLayoutParams(getBasicParams(0.9f));
        inc.get(i).setText(">");
        inc.get(i).setTextColor(Color.parseColor("#0aa29c"));
        inc.get(i).setBackgroundColor(Color.TRANSPARENT);
        inc.get(i).setOnClickListener(
            new CounterOnClickListener(productCount.get(i), true));

        rowContainers.get(i).addView(productNames.get(i));
        rowContainers.get(i).addView(cost.get(i));
        rowContainers.get(i).addView(dec.get(i));
        rowContainers.get(i).addView(productCount.get(i));
        rowContainers.get(i).addView(inc.get(i));

        scroll_contain.addView(rowContainers.get(i));
      }
      scroll_contain.addView(back_button);
      scroll_contain.addView(submit_button);
      scroll.addView(scroll_contain);
      parent.addView(scroll);

    } catch (JSONException e) {
      e.printStackTrace();
    }

  }

}
Java Source Code List
