Android Open Source - ITM_Android_App New Answer Activity

• Back to Graphics/pdf  ↑

From Project

Back to project page ITM_Android_App.

License

The source code is released under:

GNU General Public License

Java Source Code

/**
 * Copyright 2013 Bhavyanshu Parasher   
 * This file is part of "ITM University Android Application".
 * "ITM University Android Application" is free software: you can redistribute it and/or modify it 
 * under the terms of the GNU General Public License as published by the Free Software Foundation, 
 * either version 3 of the License, or (at your option) any later version.
 * "ITM University Android Application" is distributed in the hope that it will be useful, 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License along with "ITM University Android Application". 
 * If not, see http://www.gnu.org/licenses/.
 *///w w  w  . j av a2s. c  om

/**
 * This activity is responsible for adding data to the remote database. 
 * In this case, we are adding answer to a respective question.
 * POST method used!
 */
package com.wbs.itm;

import java.util.ArrayList;
import java.util.List;
 
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONException;
import org.json.JSONObject; 

import com.google.analytics.tracking.android.EasyTracker;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

 
public class NewAnswerActivity extends Activity {
 
    // Progress Dialog
    private ProgressDialog pDialog;
 
    JSONParser jsonParser = new JSONParser();
    EditText inputName;
    EditText inputDesc;
    Intent intent;
    String qid;

    // JSON Node names
    private static final String TAG_SUCCESS = "success";
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.add_ans);
        // Edit Text
        inputName = (EditText) findViewById(R.id.inputName);
        inputDesc = (EditText) findViewById(R.id.inputDesc);
        // Create button
        Button btnCreateAnswer = (Button) findViewById(R.id.btnCreateAnswer);     
        // button click event
        btnCreateAnswer.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                // creating new answer in background thread
                new CreateNewAnswer().execute();
            }
        });
    }
    
    /**
     * Background Async Task to Create new answer
     * */
    class CreateNewAnswer extends AsyncTask<String, String, String> {
        /**
         * Before starting background thread Show Progress Dialog
         * */
        @Override
        protected void onPreExecute() {
            int len4= inputDesc.length();
            if (len4<=0) {
              //AlertDialog alertDialog = new AlertDialog.Builder(NewQuestionActivity.this).create();
                inputDesc.setError(getText(R.string.error_required)); //Display required field message
                //alertDialog.setMessage("Please don't leave it empty!");  
                //alertDialog.show();                    
                }
            else
            {
            super.onPreExecute();
            pDialog = new ProgressDialog(NewAnswerActivity.this);
            pDialog.setMessage("Posting..please wait!");
            pDialog.setIndeterminate(false);
            pDialog.setCancelable(true);
            pDialog.show();
            }
        }
        /**
         * Creating..
         * */
        @Override
    protected String doInBackground(String... args) {
            String name = inputName.getText().toString();
            String description = inputDesc.getText().toString();
            intent = getIntent();
            qid = intent.getExtras().getString("TAG_newPID");
            List<NameValuePair> params = new ArrayList<NameValuePair>();
            params.add(new BasicNameValuePair("aname", name));
            params.add(new BasicNameValuePair("answer", description));
            String url_create_answer = "http://thewbs.getfreehosting.co.uk/talky/insans.php?qid="+qid;
            JSONObject json = jsonParser.makeHttpRequest(url_create_answer,
                    "POST", params);
            Log.d("Create Response", json.toString());
            try {
                int success = json.getInt(TAG_SUCCESS);
                if (success == 1) {
                   // successfully created 
                    Intent i = new Intent(getApplicationContext(), AllQuestionActivity.class);
                    startActivity(i);
                    // closing this screen
                    finish();
                } else {
                    // failed to create
                }
            } catch (JSONException e) {
                e.printStackTrace();
            }
            return null;
        }
 
        /**
         * After completing background task Dismiss the progress dialog
         * **/
        @Override
    protected void onPostExecute(String file_url) {
            // dismiss the dialog once done
            pDialog.dismiss();
        }
 
    }
    
    @Override
    protected void onStart() {
       super.onStart();
       EasyTracker.getInstance().activityStart(this); // Add this method
    }
  
    @Override
    protected void onStop() {
       super.onStop();
       EasyTracker.getInstance().activityStop(this); // Add this method
    }
}

Java Source Code List

• Back to Graphics/pdf  ↑