· Web viewANDROID PROGRAM DEVELOPED USING ADT BUNDLE ***** // BOOK RECOMMENDER SYSTEM Code...

**********ANDROID PROGRAM DEVELOPED USING ADT BUNDLE *********

// BOOK RECOMMENDER SYSTEM

*********************Code AndroidManifest.xml*****************

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.example.bookrecommender"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk

android:minSdkVersion="14" android:targetSdkVersion="19" /> <application android:allowBackup="true"

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@android:style/Theme.Holo.Light" >

<activity

android:name=".MainActivity"

android:label="@string/app_name" >

<intent-filter>

<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />

</intent-filter>

</activity>

<activity

android:name=".AddNewBookActivity"

android:label="@string/title_activity_add_new_book" >

</activity>

<activity

android:name=".BookRatingActivity"

android:label="@string/title_activity_book_rating" >

</activity>

</application>

</manifest>

**********************************************************************

Various Layout Files :

**********************Activity_main.xml********************

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

tools:context="com.example.bookrecommender.MainActivity" >

<Spinner

android:id="@+id/searchView"


android:layout_height="wrap_content" />

<ListView

android:id="@+id/list"


android:layout_height="match_parent" >

</ListView>

</LinearLayout> **********************************************************************

************************Activity_add_new_book.xml************************






android:padding="@dimen/activity_horizontal_margin"

tools:context="com.example.bookrecommender.AddNewBookActivity" >

<EditText

android:id="@+id/editTextBookName"


android:layout_height="wrap_content"

android:ems="10"

android:hint="Book Name" >

<requestFocus />

</EditText>

<EditText

android:id="@+id/editTextAuther"



android:ems="10"

android:hint="Auther name" />

<Spinner

android:id="@+id/categories"


android:layout_height="wrap_content" />

<Button

android:id="@+id/buttonAddNew"



android:background="#FF0040"

android:text="Add Book" />

</LinearLayout>

**********************************************************************

*************************activity_book_rating.xml******************

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"




tools:context="com.example.bookrecommender.BookRatingActivity" >

<ListView

android:id="@+id/list"


android:layout_height="match_parent" >

</ListView>

</RelativeLayout>

**********************************************************************

********************List_item_book_rating_layout.xml*******************





android:background="#E0E0E0"


android:padding="@dimen/activity_horizontal_margin" >

<TextView

android:id="@+id/textView"



android:textColor="@android:color/black"

android:textSize="16sp"

android:textStyle="bold" />

<RatingBar

android:id="@+id/ratingBar"

style="?android:attr/ratingBarStyle"

android:layout_width="wrap_content"


android:numStars="5"

/>

</LinearLayout>

**********************************************************************

**********************List_item_book_layout.xml********************





android:background="@android:color/white"

android:padding="@dimen/activity_horizontal_margin"

android:orientation="vertical" >

<TextView

android:id="@+id/textViewBookName"



android:text="TextView"

android:textStyle="bold"


android:textSize="16dp" />

<TextView

android:id="@+id/textViewReleaseDate"






<TextView

android:id="@+id/textViewRating"






</LinearLayout>

**********************************************************************

**************************Various menu files*********************

****************Main.xml******************

<menu xmlns:android="http://schemas.android.com/apk/res/android"


tools:context="com.example.bookrecommender.MainActivity" >

<item

android:id="@+id/action_add_book"

android:orderInCategory="100"

android:title="Add Book"

android:showAsAction="always"/>

<item

android:id="@+id/action_rate_book"


android:title="rate Book"

android:showAsAction="always"/>

</menu>

**********************************************************************

************************Add_new_book.xml*********************



tools:context="com.example.bookrecommender.AddNewBookActivity" >

<item

android:id="@+id/action_settings"


android:title="@string/action_settings"

android:showAsAction="never"/>

</menu>

**********************************************************************

***********************Book_rating.xml*****************



tools:context="com.example.bookrecommender.BookRatingActivity" >

<item

android:id="@+id/action_settings"


android:title="@string/action_settings"

android:showAsAction="never"/>

</menu>

*************************************************************************************************Various Java Files***************

*****************************AddNewBookActivity.java******************

package com.example.bookrecommender;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemSelectedListener;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.EditText;

import android.widget.Spinner;

import android.widget.Toast;

public class AddNewBookActivity extends Activity implements OnClickListener,

OnItemSelectedListener {

private EditText editTextBookName, editTextAuther;

private Spinner spinnerCategories;

private Button buttonAddNew;

private DatabaseHelper databaseHelper;

private ArrayAdapter<String> categoriesAdapter;

private String bookname;

private String author;

private String categories;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_add_new_book);

databaseHelper = new DatabaseHelper(getApplicationContext());

editTextBookName = (EditText) findViewById(R.id.editTextBookName);

editTextAuther = (EditText) findViewById(R.id.editTextAuther);

spinnerCategories = (Spinner) findViewById(R.id.categories);

buttonAddNew = (Button) findViewById(R.id.buttonAddNew);

categoriesAdapter = new ArrayAdapter<String>(this,

android.R.layout.simple_list_item_1, getResources()

.getStringArray(R.array.book_types));

spinnerCategories.setAdapter(categoriesAdapter);

//set Listeners

buttonAddNew.setOnClickListener(this);

spinnerCategories.setOnItemSelectedListener(this);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

getMenuInflater().inflate(R.menu.add_new_book, menu);

return true;

}

@Override

public boolean onOptionsItemSelected(MenuItem item) {

int id = item.getItemId();

if (id == R.id.action_settings) {

return true;

}

return super.onOptionsItemSelected(item);

}

@Override

public void onClick(View v) {

if (!editTextBookName.getText().toString().equals("")

|| !editTextAuther.getText().toString().equals("")) {

bookname = editTextBookName.getText().toString();

author = editTextAuther.getText().toString();

databaseHelper.addNewBook(bookname, categories, author);

onBackPressed();

} else {

Toast.makeText(getApplicationContext(), "Enter All Fileds",

Toast.LENGTH_SHORT).show();

}

}

@Override

public void onItemSelected(AdapterView<?> listAdapter, View view,

int position, long id) {

categories = listAdapter.getAdapter().getItem(position).toString();

}

@Override

public void onNothingSelected(AdapterView<?> parent) {

}

@Override

public void onBackPressed() {

Intent intent=new Intent(this,MainActivity.class);

startActivity(intent);

finish();

}

}

**********************************************************************

***********************BookBean.java*********************


public class BookBean {

private int id;

private String bookname,author,categories,releaseDate;

private float rating=0;

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

public String getBookname() {

return bookname;

}

public void setBookname(String bookname) {

this.bookname = bookname;

}

public String getAuther() {

return author;

}

public void setAuther(String author) {

this.author = author;

}

public String getCategories() {

return categories;

}

public void setCategories(String categories) {

this.categories = categories;

}

public float getRating() {

return rating;

}

public void setRating(float rating) {

this.rating = rating;

}

public String getReleaseDate() {

return releaseDate;

}

public void setReleaseDate(String releaseDate) {

this.releaseDate = releaseDate;

}

}

**************************************************************************************************BookListAdapter.java******************


import java.util.ArrayList;

import android.content.Context;

import android.view.LayoutInflater;


import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.TextView;public class BookListAdapter extends BaseAdapter {

private ArrayList<BookBean> list;

private LayoutInflater inflater;

DatabaseHelper databaseHelper;

BookListAdapter(Context context,ArrayList<BookBean> list){

this.list=list;

inflater=(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

databaseHelper = new DatabaseHelper(context);

}

@Override

public int getCount() {

return list.size();

}

@Override

public BookBean getItem(int position) {

return list.get(position);

}

@Override

public long getItemId(int position) {

return position;

}

@Override

public View getView(int position, View convertView, ViewGroup parent) {

convertView=inflater.inflate(R.layout.list_item_book_rlayout, null);

TextView textViewBookName=(TextView)convertView.findViewById(R.id.textViewBookName);

TextView textViewReleaseDate=(TextView)convertView.findViewById(R.id.textViewReleaseDate);

TextView textViewRating=(TextView)convertView.findViewById(R.id.textViewRating);

//Set Data final BookBean dataBean=list.get(position);

textViewBookName.setText( dataBean.getBookname());

textViewReleaseDate.setText("Release Date : " + dataBean.getReleaseDate());

textViewRating.setText("Rating : "+dataBean.getRating());

return convertView;

}}

**********************************************************************

******************BookRatingActivity.java******************






import android.widget.ListView;

public class BookRatingActivity extends Activity {

private BookRatingAdapter bookAdapter;

private ListView listView;


@Override



setContentView(R.layout.activity_book_rating);

//Initialize views

listView = (ListView) findViewById(R.id.list);

//Initialize database


//get List from dataBase

ArrayList<BookBean> list = databaseHelper

.getBookList(getString(R.string.newrelease));

//Initialize adapter

bookAdapter = new BookRatingAdapter(getApplicationContext(), list);

//set adapter

listView.setAdapter(bookAdapter);

}

@Override

public void onBackPressed() {

Intent intent = new Intent(this, MainActivity.class);


finish();

}

}

*********************************************************************************************BookRatingAdapter.java*******************




import android.view.LayoutInflater;


import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.RatingBar;

import android.widget.RatingBar.OnRatingBarChangeListener;

import android.widget.TextView;

public class BookRatingAdapter extends BaseAdapter {

private ArrayList<BookBean> list;

private LayoutInflater inflater;


BookRatingAdapter(Context context,ArrayList<BookBean> list){

this.list=list;

inflater=(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

databaseHelper = new DatabaseHelper(context);

}

@Override

public int getCount() {

return list.size();

}

@Override

public BookBean getItem(int position) {

return list.get(position);

}

@Override

public long getItemId(int position) {

return position;

}

@Override

public View getView(int position, View convertView, ViewGroup parent) {

/*create views(List item)*/

convertView=inflater.inflate(R.layout.list_item_book_rating_layout, null);

TextView textView=(TextView)convertView.findViewById(R.id.textView);

RatingBar ratingBar=(RatingBar)convertView.findViewById(R.id.ratingBar);

//LayerDrawable stars = (LayerDrawable) ratingBar.getProgressDrawable();

//set Data

final BookBean dataBean=list.get(position);

ratingBar.setRating(dataBean.getRating());

textView.setText(dataBean.getBookname());

ratingBar.setOnRatingBarChangeListener(new OnRatingBarChangeListener() {

@Override

public void onRatingChanged(RatingBar ratingBar, float rating,

boolean fromUser) {

databaseHelper.rateBook(dataBean.getId(), rating); } });

return convertView;

}

}

**********************************************************************

*************************DatabaseHelper.java***************************


import java.text.SimpleDateFormat;


import java.util.Calendar;

import java.util.Locale;


import android.database.Cursor;

import android.database.sqlite.SQLiteDatabase;

import android.database.sqlite.SQLiteOpenHelper;

import android.util.Log;

public class DatabaseHelper extends SQLiteOpenHelper {

private static final String TAG = DatabaseHelper.class.getName();

public static final String DATABASE_NAME = "BOOKSYSTEM";

private static final int DATABASE_VERSION = 1;

rivate static final String TABLE_QUERY = "CREATE TABLE BOOKSYSTEM( ID INTEGER PRIMARY KEY AUTOINCREMENT, BOOKNAME TEXT NOT NULL, AUTHOR TEXT NOT NULL, RATING REAL,RELEASEDATE TEXT,DESC TEXT,CATEGORY TEXT)";

private static DatabaseHelper sDbInstance = null;

private Context context;

public DatabaseHelper(Context context) {

super(context, DATABASE_NAME, null, DATABASE_VERSION);

this.context = context;

}

@Override

public void onCreate(SQLiteDatabase db) {

db.execSQL(TABLE_QUERY);

} @Override

public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

}

public static DatabaseHelper getInstance(Context context) {

if (sDbInstance == null) {

sDbInstance = new DatabaseHelper(context);

}

return sDbInstance;

}

/**

* Method to execute SQL Query

*

* @param s

* SQL Query

* @return cursor of returned results

*/

public synchronized Cursor ExecuteRawSql(String s) {// Select Query

try {

SQLiteDatabase sqLiteDb = getReadableDatabase();

Cursor cursor = sqLiteDb.rawQuery(s, null);

return cursor;

} catch (Exception e) {

e.printStackTrace();

return null;

}

}

/**

* Method to execute SQL Query

*

* @param s

* SQL Query

* @return true if query was successfully executed.

*/

public synchronized boolean ExecuteSql(String s) {// Update Query

try {

Log.d(TAG, "Actual Query--->>" + s);

SQLiteDatabase sqLiteDb = getWritableDatabase();

sqLiteDb.execSQL(s);

return true;

} catch (Exception e) {

e.printStackTrace();

return false;

}

}

public boolean saveData(String startTime, String stopTime, int stepCount) {

String qry = "INSERT INTO PEDODATA (STARTTIME,STOPTIME,STEPS) VALUES('"

+ startTime + "','" + stopTime + "','" + stepCount + "');";

return ExecuteSql(qry);

}

public ArrayList<String> getData() {

ArrayList<String> list = new ArrayList<String>();

String qry = "SELECT STARTTIME,STOPTIME,STEPS FROM PEDODATA ORDER BY ID DESC";

Cursor cursor = ExecuteRawSql(qry);

if (cursor != null && cursor.moveToFirst()) {

do {

String startTime = cursor.getString(0);

String stopTime = cursor.getString(1);

int stepCount = cursor.getInt(2);

String time = "From : " + startTime + " \nTo : " + stopTime;

String steps = " \nSteps : " + stepCount;

list.add(time + steps);

} while (cursor.moveToNext());

}

return list; }

public boolean addNewBook(String name, String category, String AUTHOR) {

String qry = "INSERT INTO BOOKSYSTEM (BOOKNAME,CATEGORY,AUTHOR ,RELEASEDATE) VALUES('" + name + "','" + category + "','" + AUTHOR + "','"+getDateTime()+"');";

return ExecuteSql(qry); }

public boolean rateBook(int bookId, float rating) {

String qry = "UPDATE BOOKSYSTEM SET RATING=" + rating + " WHERE id="

+ bookId + "";

return ExecuteSql(qry); } public ArrayList<BookBean> getBookList(String category) {

ArrayList<BookBean> list = new ArrayList<BookBean>();

String qry;

if (category.equals(context.getString(R.string.toprated))) {

qry = "SELECT ID,BOOKNAME,AUTHOR,RELEASEDATE,RATING,CATEGORY FROM BOOKSYSTEM ORDER BY RATING DESC";

} else {

qry = "SELECT ID,BOOKNAME,AUTHOR,RELEASEDATE,RATING,CATEGORY FROM BOOKSYSTEM ORDER BY RELEASEDATE DESC"; }

Cursor cursor = ExecuteRawSql(qry);

if (cursor != null && cursor.moveToFirst()) {

do {

BookBean bookName = new BookBean();

bookName.setId(cursor.getInt(0));

bookName.setBookname(cursor.getString(1));

bookName.setAuther(cursor.getString(2));

bookName.setReleaseDate(cursor.getString(3));

bookName.setRating(cursor.getFloat(4));

bookName.setCategories(cursor.getString(5));

list.add(bookName);

} while (cursor.moveToNext());

}

return list;

}

public String getDateTime() {

Calendar c = Calendar.getInstance();

SimpleDateFormat formatter = new SimpleDateFormat("dd-MMM-yyyy",

Locale.US);

String formattedDate = formatter.format(c.getTime());

String s = formattedDate;

return s;

}

}

**********************************************************************

**********************MainActivity.java***********************






import android.view.Menu;

import android.view.MenuItem;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.Spinner;

public class MainActivity extends Activity {

private Spinner searchView;

private ArrayAdapter<String> searchAdapter;

private ListView listView;


private BookListAdapter bookListAdapter;

@Override



setContentView(R.layout.activity_main);

// initialize UI components

searchView = (Spinner) findViewById(R.id.searchView);

listView = (ListView) findViewById(R.id.list);

searchAdapter = new ArrayAdapter<String>(this,

android.R.layout.simple_list_item_1, getResources().getStringArray(R.array.searchCategory));

searchView.setAdapter(searchAdapter);


ArrayList<BookBean> list = databaseHelper.getBookList(searchView.getSelectedItem().toString());

bookListAdapter = new BookListAdapter(getApplicationContext(), list);

listView.setAdapter(bookListAdapter); }

@Override

public boolean onCreateOptionsMenu(Menu menu) {

getMenuInflater().inflate(R.menu.main, menu);

return true;

}

@Override

public boolean onOptionsItemSelected(MenuItem item) {

int id = item.getItemId();

if (id == R.id.action_add_book) {

Intent intent=new Intent(this,AddNewBookActivity.class);


finish();

}else if(id == R.id.action_rate_book){

Intent intent=new Intent(this,BookRatingActivity.class);


finish();

}

return super.onOptionsItemSelected(item);

}

/**

* Find book as per search text

*

* @param bookType

*/

/* private void findBookList(String bookType) {

String[] booklist = getBooklistfromResources(bookType);

listAdapter = new ArrayAdapter<String>(this,

android.R.layout.simple_list_item_1, booklist);

listView.setAdapter(listAdapter);

}*/

/**

* get list of books from resources

*

* @param bookType

* @return

*/

/* private String[] getBooklistfromResources(String bookType) {

String[] booklist = null;

if (bookType.equals(getString(R.string.novel))) {

booklist = getResources().getStringArray(R.array.novel);

} else if (bookType.equals(getString(R.string.fantasy))) {

booklist = getResources().getStringArray(R.array.fantasy);

} else if (bookType.equals(getString(R.string.literature))) {

booklist = getResources().getStringArray(R.array.literature);

} else if (bookType.equals(getString(R.string.scienceFiction))) {

booklist = getResources().getStringArray(R.array.scienceFiction);

} else if (bookType.equals(getString(R.string.java))) {

booklist = getResources().getStringArray(R.array.java);

}

return booklist; }*/

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