private void initControls() {
		// TODO Auto-generated method stub
		userInput = (EditText) findViewById (R.id.editTextDialogUserInput);

		save = (Button) findViewById (R.id.btSave);
		cancel = (Button) findViewById (R.id.btCancel);
		save.setOnClickListener(this);
		cancel.setOnClickListener(this);

		Bundle extras = getIntent().getExtras();
		if (extras != null) {

			stID = extras.getString("dog_id");
		    dog_name = extras.getString("dog_name");
		    cursor = dbHelper.fetchbBreedByName(dog_name);

		    strDesc = cursor.getString(cursor.getColumnIndexOrThrow("description"));
		    Log.d("Animal ID", "Animal ID is " + stID + " and breed is " + dog_name);
		    userInput.setText(strDesc);
		}

	}

	private void checkDatabaseConnection() {
		// TODO Auto-generated method stub
		dbHelper = new DBHelper(this);

        try {

                dbHelper.createDataBase();

        } catch (IOException ioe) {

                throw new Error("Unable to create database");

        }

        try {

                dbHelper.openDataBase();

        } catch (SQLException sqle) {

                throw sqle;

        }


   }


	@Override
	public void onClick(View v) {
		// TODO Auto-generated method stub
		switch(v.getId()){
		case R.id.btSave:
			if(userInput.equals("")){
				Toast.makeText(this, "No input", Toast.LENGTH_SHORT).show();

			}
			else {
				id = Long.valueOf(stID);
				dbHelper.updateDescription( id, userInput.getText().toString() );
	            Toast.makeText(this, "Description has been updated successfully!",
	            		Toast.LENGTH_SHORT).show();

	            strDesc = cursor.getString(cursor.getColumnIndexOrThrow("description"));

	            Log.d("Updated", dog_name + " " + strDesc);
	            Intent i = new Intent(this, DogClass.class);
				startActivity(i);
				finish();
			}
			break;
		case R.id.btCancel:
			userInput.setText("");
			break;
		}
	}

	@Override
	protected void onDestroy() {
		// TODO Auto-generated method stub
		dbHelper.close(); // close DB
		cursor.close(); // close cursor
		super.onDestroy();
	}















package com.pet101.util;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import android.annotation.SuppressLint;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteException;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;

public class DBHelper extends SQLiteOpenHelper{

	//The Android's default system path of your application database.
	@SuppressLint("SdCardPath")
	private static String DB_PATH = "/data/data/com.pet101/databases/";
	private static String DB_NAME = "PetDB";
	static String KEY_ID = "_id";
	static String KEY_ANIMALTYPE = "animaltype";
	static String KEY_BREED = "breed";
	static String KEY_DESCRIPTION = "description";
	static String KEY_DIET = "diet";
	static String KEY_SHELTER = "shelter";
	static String KEY_MEDICATION = "medication";
	static String KEY_HYGIENE = "hygiene";

	static String DB_TABLE = "tblAnimalInfo";
	private SQLiteDatabase myDataBase;
	private final Context myContext;
	private static final int DATABASE_VERSION = 1;

	/**
	 * Constructor
	 * Takes and keeps a reference of the passed context in order to access to the application assets and resources.
	 * @param context
	 */

	public DBHelper(Context context) {
		super(context, DB_NAME, null, DATABASE_VERSION);
		this.myContext = context;
	}

	/**
	 * Creates a empty database on the system and rewrites it with your own database.
	 * */

	public void createDataBase() throws IOException {

		boolean dbExist = checkDataBase();

		myDataBase = null;

		 if (dbExist) {
		        // do nothing - database already exist
		    } else {

		        // By calling this method and empty database will be created into
		        // the default system path

		        myDataBase = this.getReadableDatabase();
		        myDataBase.close();

			try {
				copyDataBase();
			} catch (IOException e) {
				throw new Error("Error copying database");
			}
		}
	}

	/**
	 * Check if the database already exist to avoid re-copying the file each time you open the application.
	 * @return true if it exists, false if it doesn't
	 */

	private boolean checkDataBase(){
		SQLiteDatabase checkDB = null;
		try{
			String myPath = DB_PATH + DB_NAME;
			checkDB = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY);
		}catch(SQLiteException e){
			//database doesn't exist yet.
		}
		if(checkDB != null){
			checkDB.close();
		}

		return checkDB != null ? true : false;
	}

	/**
	 * Copies your database from your local assets-folder to the just created empty database in the
	 * system folder, from where it can be accessed and handled.
	 * This is done by transfering bytestream.
	 * */

	private void copyDataBase() throws IOException{

		//Open your local db as the input stream
		InputStream myInput = myContext.getAssets().open(DB_NAME);

		// Path to the just created empty db
		String outFileName = DB_PATH + DB_NAME;

		//Open the empty db as the output stream
		OutputStream myOutput = new FileOutputStream(outFileName);

		//transfer bytes from the inputfile to the outputfile
		byte[] buffer = new byte[1024];
		int length;
		while ((length = myInput.read(buffer))>0){
			myOutput.write(buffer, 0, length);
		}

		//Close the streams
		myOutput.flush();
		myOutput.close();
		myInput.close();

	}

	public void openDataBase() throws SQLException {
		//Open the database
		myDataBase = this.getReadableDatabase();
		String myPath = DB_PATH + DB_NAME;
		myDataBase = SQLiteDatabase.openDatabase( myPath, null,
				SQLiteDatabase.NO_LOCALIZED_COLLATORS | SQLiteDatabase.OPEN_READWRITE );

	}

	@Override
	public synchronized void close() {
		if(myDataBase != null)
			myDataBase.close();
		super.close();
	}

	@Override
	public void onCreate(SQLiteDatabase db) {
		try {
			createDataBase();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	@Override
	public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
		Log.w("Test", "Upgrading DB from version " + oldVersion + " to " +
                newVersion + ", which will destroy all old data");
        db.execSQL("DROP TABLE IF EXISTS " + DB_TABLE);
        onCreate(db);
	}

	public Cursor getAllAnimals()
	{
	    Cursor localCursor = //
	    		this.myDataBase.query(DB_TABLE, new String[] {
	    				KEY_ID, KEY_DESCRIPTION, KEY_DIET, KEY_SHELTER,
	    				KEY_HYGIENE, KEY_MEDICATION, KEY_BREED }, null, null, null, null, null);

	    if (localCursor != null)
	      localCursor.moveToFirst();
	    return localCursor;
	}

	public String[] getAllAnimals(CharSequence animaltype) throws SQLException
	{
	    Cursor localCursor =
	    		this.myDataBase.query(DB_TABLE, new String[] {
	    				KEY_ID, KEY_BREED },
	    				KEY_ANIMALTYPE + " = '" + animaltype + "'", null,
	    				null, null, null, null);

	    String[] values = new String[localCursor.getCount()];
        int i = 0;
        for (localCursor.moveToFirst(); !localCursor.isAfterLast(); localCursor.moveToNext()) {
            values[i] = localCursor.getString(localCursor.getColumnIndex(KEY_BREED));
            i++;
        }
        localCursor.close();
        return values;

	}

	public Cursor fetchbBreedByName(CharSequence breed) throws SQLException {

		  Cursor mCursor = null;
		  if (breed == null  ||  breed.length () == 0)  {
		   mCursor = myDataBase.query(DB_TABLE, new String[] { KEY_ID, KEY_DESCRIPTION,
				   KEY_DIET, KEY_SHELTER, KEY_HYGIENE, KEY_MEDICATION, KEY_BREED },
		     null, null, null, null, null);

		  }
		  else {
			  mCursor = myDataBase.query(DB_TABLE, new String[] { KEY_ID, KEY_DESCRIPTION,
				   KEY_DIET, KEY_SHELTER, KEY_HYGIENE, KEY_MEDICATION, KEY_BREED },
		     KEY_BREED + " like '%" + breed + "%'", null, null, null, null);
		  }

		  if (mCursor != null) {
		   mCursor.moveToFirst();
		  }

		  return mCursor;
	}

	public long addAnimalInfo( String ANIMALTYPE, String DESCRIPTION, String DIET,
			String SHELTER, String HYGIENE, String MEDICATION, String BREED ) {

		ContentValues cv = new ContentValues();
		cv.put(KEY_ANIMALTYPE, ANIMALTYPE);
		cv.put(KEY_DESCRIPTION, DESCRIPTION);
		cv.put(KEY_DIET, DIET);
		cv.put(KEY_SHELTER, SHELTER);
		cv.put(KEY_HYGIENE, HYGIENE);
		cv.put(KEY_MEDICATION, MEDICATION);
		cv.put(KEY_BREED, BREED);

		return myDataBase.insert(DB_TABLE, null, cv);

	}

	public long addDescription( String DESCRIPTION, String BREED ) {

		ContentValues cv = new ContentValues();
		cv.put(KEY_DESCRIPTION, DESCRIPTION);
		cv.put(KEY_BREED, BREED);

		return myDataBase.insert(DB_TABLE, null, cv);

	}

	public long addDiet( String DIET, String BREED ) {

		ContentValues cv = new ContentValues();
		cv.put(KEY_DIET, DIET);
		cv.put(KEY_BREED, BREED);

		return myDataBase.insert(DB_TABLE, null, cv);

	}

	public long addShelter( String SHELTER, String BREED ) {

		ContentValues cv = new ContentValues();
		cv.put(KEY_SHELTER, SHELTER);
		cv.put(KEY_BREED, BREED);

		return myDataBase.insert(DB_TABLE, null, cv);

	}

	public long addHygiene( String HYGIENE, String BREED ) {

		ContentValues cv = new ContentValues();
		cv.put(KEY_HYGIENE, HYGIENE);
		cv.put(KEY_BREED, BREED);

		return myDataBase.insert(DB_TABLE, null, cv);

	}

	public long addMedication( String MEDICATION, String BREED ) {

		ContentValues cv = new ContentValues();
		cv.put(KEY_MEDICATION, MEDICATION);
		cv.put(KEY_BREED, BREED);

		return myDataBase.insert(DB_TABLE, null, cv);

	}

	public boolean updateDescription( long lId, String DESCRIPTION ) {

		ContentValues cvUpdate = new ContentValues();
		cvUpdate.put(KEY_DESCRIPTION, DESCRIPTION);

		return myDataBase.update(DB_TABLE, cvUpdate, KEY_ID + " = " + lId, null)> 0;

	}

	public boolean updateDiet( long lId, String DIET) {
		ContentValues cvUpdate = new ContentValues();

		cvUpdate.put(KEY_DIET, DIET);

		return myDataBase.update(DB_TABLE, cvUpdate, KEY_ID + " = " + lId, null)> 0;
	}

	public void updateShelter( long lId, String SHELTER ) {
		ContentValues cvUpdate = new ContentValues();

		cvUpdate.put(KEY_SHELTER, SHELTER);

		myDataBase.update(DB_TABLE, cvUpdate, KEY_ID + " = " + lId, null);
	}

	public void updateHygiene( long lId,String HYGIENE ) {
		ContentValues cvUpdate = new ContentValues();

		cvUpdate.put(KEY_HYGIENE, HYGIENE);

		myDataBase.update(DB_TABLE, cvUpdate, KEY_ID + " = " + lId, null);
	}

	public void updateMedication( long lId, String MEDICATION ) {
		ContentValues cvUpdate = new ContentValues();

		cvUpdate.put(KEY_MEDICATION, MEDICATION);

		myDataBase.update(DB_TABLE, cvUpdate, KEY_ID + " = " + lId, null);
	}


}