Android Open Source - Arthashastra Novice_ Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

package org.aakashlabs.arthashastra;
//from   w w w. j a  va2  s.c om
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;


import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import android.view.View;
import android.view.MenuItem;
import android.widget.TextView;
import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.app.FragmentTransaction;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.app.ListFragment;
import android.view.LayoutInflater;
import android.view.ViewGroup;
import android.content.Context;

/*
 *  Arthashastra - a financial literacy app
    Copyright (C) 2013 Made by Tushar Bhargava (tushar1995@gmail.com)

    This program 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.

    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 *
 */

/**
 * This module contains videos, ebooks and challenges suitable for Novice users.
 * Refer to Home_Activity for documentation of standard methods.
 * 
 * @author Tushar Bhargava
 *
 */

public class Novice_Activity extends Activity
{
  
  public static Context appContext;
  public static final String file_name="score_file";
   
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_novice);
 
       //ActionBar gets initiated
        ActionBar actionbar = getActionBar();
      //Tell the ActionBar we want to use Tabs.
        actionbar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
      //initiating both tabs and set text to it.
        ActionBar.Tab Part1NTab = actionbar.newTab().setText("Part 1");
        ActionBar.Tab Part2NTab = actionbar.newTab().setText("Part 2");
        ActionBar.Tab Part3NTab = actionbar.newTab().setText("Part 3");
 
     //create the two fragments we want to use for display content
     // these are two objects of the fragment classes (yet to be made)   
        Fragment Part1NFragment = new Part1N();
        Fragment Part2NFragment = new Part2N();
        Fragment Part3NFragment=  new Part3N();
 
    //set the Tab listener. Now we can listen for clicks.
        Part1NTab.setTabListener(new MyTabsListener(Part1NFragment));
        Part2NTab.setTabListener(new MyTabsListener(Part2NFragment));
        Part3NTab.setTabListener(new MyTabsListener(Part3NFragment));
 
   //add the two tabs to the action bar
        actionbar.addTab(Part1NTab);
        actionbar.addTab(Part2NTab);
        actionbar.addTab(Part3NTab);
        
           }
  

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

  // Updating score and making sure it's shown in the action bar
     MenuItem score_keeper=menu.add(Integer.toString(get_score()));
     score_keeper.setShowAsAction(2);  
    
  return true;
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item)
  {
    // Handle item selection
    
    switch(item.getItemId())
    {
    case R.id.about_the_app:
      view_PDF("AboutV1.pdf");
      return true;
      
    case R.id.help_for_app:
      view_PDF("Help.pdf");
      return true;
      
      default:
        return super.onOptionsItemSelected(item);
      
    }// end switch statement
    
    
  } // end function
  
  //------------------------------- Standard methods now ---------------------------------
  

   public void view_PDF(String file_name)
    {
      // I'm assuming all my files will be stored on the SD card directly ; using bluetooth
      // for tablet testing

      File file = new File(Environment.getExternalStorageDirectory()+"/bluetooth/"+file_name);
      
      if(file.exists())
      {
      // Now I am going to use an intent to let the default application handle PDF viewing
      Uri path=Uri.fromFile(file);
      Intent pdf_view = new Intent(android.content.Intent.ACTION_VIEW);
        pdf_view.setDataAndType(path,"application/pdf");
        pdf_view.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        
        
        try
        {
          startActivity(pdf_view);
        }// end try statement
      
      catch(ActivityNotFoundException e)
      {
        Toast no_app=Toast.makeText(getBaseContext(), "Application to view PDF missing", Toast.LENGTH_SHORT);
        no_app.show();
      }// end catch statement
      }// end if statement
      
      else
      {
        System.out.println("File does not exist !");
      }// end else statement

      
    }// end function 
  
  public int get_score()
  {
    int score=0;
    
    File file=new File(getFilesDir(), file_name);
    
    if(!file.exists())
    {
      return score;
    }// end if statement
      
       try
       {
      FileInputStream fis = openFileInput(file_name);
      InputStreamReader in=new InputStreamReader(fis);
      BufferedReader br=new BufferedReader(in);
      score=Integer.parseInt(br.readLine());
       }// end try statement
       
       catch (Exception e)
       {
      e.printStackTrace();
       }// end catch statement
    
       return score;
       
  }// end function

  public void score_add(int add_val)
  {
    int original_sc=get_score();
    int new_sc=original_sc+add_val;
    
    // a string to write to the file
    String score=Integer.toString(new_sc);
    
    FileOutputStream outputStream;
    
    try
    {
      outputStream=openFileOutput(file_name,Context.MODE_PRIVATE);
      outputStream.write(score.getBytes());
      outputStream.close();
    }
    catch(Exception e)
    {
    e.printStackTrace();  
    }// end catch statement
    
  }// end function

  
}// end class 

class MyTabsListener implements ActionBar.TabListener {
public Fragment fragment;
 
public MyTabsListener(Fragment fragment) {
this.fragment = fragment;
}
 
@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
// no need to do anything here
}
 
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
ft.replace(R.id.fragment_container_N, fragment);
}
 
@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
ft.remove(fragment);
}
 
}// end class MyTabsListener

Java Source Code List

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