Create Quiz game in Android using java

package sarveshchavan777.triviaquiz;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;

public class GameWon extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.game_won);
    }

    //This is onclick listener for button
    //it will navigate from this activity to MainGameActivity
    public void PlayAgain(View view) {
        Intent intent = new Intent(GameWon.this, MainGameActivity.class);
        startActivity(intent);
        finish();
    }
}

package sarveshchavan777.triviaquiz;

import android.content.Intent;
import android.graphics.Typeface;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;

import info.hoang8f.widget.FButton;

public class HomeScreen extends AppCompatActivity {
    FButton playGame,quit;
    TextView tQ;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_home_screen);
        //the below method will initialize views
        initViews();

        //PlayGame button - it will take you to the MainGameActivity
        playGame.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(HomeScreen.this,MainGameActivity.class);
                startActivity(intent);
                finish();
            }
        });

        //Quit button - This will quit the game
        quit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                finish();
            }
        });
    }

    private void initViews() {
        //initialize views here
        playGame =(FButton)findViewById(R.id.playGame);
        quit = (FButton) findViewById(R.id.quit);
        tQ = (TextView)findViewById(R.id.tQ);

        //Typeface - this is for fonts style
        Typeface typeface = Typeface.createFromAsset(getAssets(),"fonts/shablagooital.ttf");
        playGame.setTypeface(typeface);
        quit.setTypeface(typeface);
        tQ.setTypeface(typeface);
    }
}

package sarveshchavan777.triviaquiz;

import android.app.Dialog;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.Typeface;
import android.graphics.drawable.ColorDrawable;
import android.os.CountDownTimer;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.widget.TextView;
import java.util.Collections;
import java.util.List;


import info.hoang8f.widget.FButton;

public class MainGameActivity extends AppCompatActivity {
    FButton buttonA, buttonB, buttonC, buttonD;
    TextView questionText, triviaQuizText, timeText, resultText, coinText;
    TriviaQuizHelper triviaQuizHelper;
    TriviaQuestion currentQuestion;
    List<TriviaQuestion> list;
    int qid = 0;
    int timeValue = 20;
    int coinValue = 0;
    CountDownTimer countDownTimer;
    Typeface tb, sb;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_game_main);

        //Initializing variables
        questionText = (TextView) findViewById(R.id.triviaQuestion);
        buttonA = (FButton) findViewById(R.id.buttonA);
        buttonB = (FButton) findViewById(R.id.buttonB);
        buttonC = (FButton) findViewById(R.id.buttonC);
        buttonD = (FButton) findViewById(R.id.buttonD);
        triviaQuizText = (TextView) findViewById(R.id.triviaQuizText);
        timeText = (TextView) findViewById(R.id.timeText);
        resultText = (TextView) findViewById(R.id.resultText);
        coinText = (TextView) findViewById(R.id.coinText);

        //Setting typefaces for textview and buttons - this will give stylish fonts on textview and button etc
        tb = Typeface.createFromAsset(getAssets(), "fonts/TitilliumWeb-Bold.ttf");
        sb = Typeface.createFromAsset(getAssets(), "fonts/shablagooital.ttf");
        triviaQuizText.setTypeface(sb);
        questionText.setTypeface(tb);
        buttonA.setTypeface(tb);
        buttonB.setTypeface(tb);
        buttonC.setTypeface(tb);
        buttonD.setTypeface(tb);
        timeText.setTypeface(tb);
        resultText.setTypeface(sb);
        coinText.setTypeface(tb);

        //Our database helper class
        triviaQuizHelper = new TriviaQuizHelper(this);
        //Make db writable
        triviaQuizHelper.getWritableDatabase();

        //It will check if the ques,options are already added in table or not
        //If they are not added then the getAllOfTheQuestions() will return a list of size zero
        if (triviaQuizHelper.getAllOfTheQuestions().size() == 0) {
            //If not added then add the ques,options in table
            triviaQuizHelper.allQuestion();
        }

        //This will return us a list of data type TriviaQuestion
        list = triviaQuizHelper.getAllOfTheQuestions();

        //Now we gonna shuffle the elements of the list so that we will get questions randomly
        Collections.shuffle(list);

        //currentQuestion will hold the que, 4 option and ans for particular id
        currentQuestion = list.get(qid);

        //countDownTimer
        countDownTimer = new CountDownTimer(22000, 1000) {
            public void onTick(long millisUntilFinished) {

                //here you can have your logic to set text to timeText
                timeText.setText(String.valueOf(timeValue) + "\"");

                //With each iteration decrement the time by 1 sec
                timeValue -= 1;

                //This means the user is out of time so onFinished will called after this iteration
                if (timeValue == -1) {

                    //Since user is out of time setText as time up
                    resultText.setText(getString(R.string.timeup));

                    //Since user is out of time he won't be able to click any buttons
                    //therefore we will disable all four options buttons using this method
                    disableButton();
                }
            }

            //Now user is out of time
            public void onFinish() {
                //We will navigate him to the time up activity using below method
                timeUp();
            }
        }.start();

        //This method will set the que and four options
        updateQueAndOptions();


    }


    public void updateQueAndOptions() {

        //This method will setText for que and options
        questionText.setText(currentQuestion.getQuestion());
        buttonA.setText(currentQuestion.getOptA());
        buttonB.setText(currentQuestion.getOptB());
        buttonC.setText(currentQuestion.getOptC());
        buttonD.setText(currentQuestion.getOptD());


        timeValue = 20;

        //Now since the user has ans correct just reset timer back for another que- by cancel and start
        countDownTimer.cancel();
        countDownTimer.start();

        //set the value of coin text
        coinText.setText(String.valueOf(coinValue));
        //Now since user has ans correct increment the coinvalue
        coinValue++;

    }

    //Onclick listener for first button
    public void buttonA(View view) {
        //compare the option with the ans if yes then make button color green
        if (currentQuestion.getOptA().equals(currentQuestion.getAnswer())) {
            buttonA.setButtonColor(ContextCompat.getColor(getApplicationContext(),R.color.lightGreen));
            //Check if user has not exceeds the que limit
            if (qid < list.size() - 1) {

                //Now disable all the option button since user ans is correct so
                //user won't be able to press another option button after pressing one button
                disableButton();

                //Show the dialog that ans is correct
                correctDialog();
            }
            //If user has exceeds the que limit just navigate him to GameWon activity
            else {

                gameWon();

            }
        }
        //User ans is wrong then just navigate him to the PlayAgain activity
        else {

            gameLostPlayAgain();

        }
    }

    //Onclick listener for sec button
    public void buttonB(View view) {
        if (currentQuestion.getOptB().equals(currentQuestion.getAnswer())) {
            buttonB.setButtonColor(ContextCompat.getColor(getApplicationContext(),R.color.lightGreen));
            if (qid < list.size() - 1) {
                disableButton();
                correctDialog();
            } else {
                gameWon();
            }
        } else {
            gameLostPlayAgain();
        }
    }

    //Onclick listener for third button
    public void buttonC(View view) {
        if (currentQuestion.getOptC().equals(currentQuestion.getAnswer())) {
            buttonC.setButtonColor(ContextCompat.getColor(getApplicationContext(),R.color.lightGreen));
            if (qid < list.size() - 1) {
                disableButton();
                correctDialog();
            } else {
                gameWon();
            }
        } else {

            gameLostPlayAgain();
        }
    }

    //Onclick listener for fourth button
    public void buttonD(View view) {
        if (currentQuestion.getOptD().equals(currentQuestion.getAnswer())) {
            buttonD.setButtonColor(ContextCompat.getColor(getApplicationContext(),R.color.lightGreen));
            if (qid < list.size() - 1) {
                disableButton();
                correctDialog();
            } else {
                gameWon();
            }
        } else {
            gameLostPlayAgain();
        }
    }

    //This method will navigate from current activity to GameWon
    public void gameWon() {
        Intent intent = new Intent(this, GameWon.class);
        startActivity(intent);
        finish();
    }

    //This method is called when user ans is wrong
    //this method will navigate user to the activity PlayAgain
    public void gameLostPlayAgain() {
        Intent intent = new Intent(this, PlayAgain.class);
        startActivity(intent);
        finish();
    }

    //This method is called when time is up
    //this method will navigate user to the activity Time_Up
    public void timeUp() {
        Intent intent = new Intent(this, Time_Up.class);
        startActivity(intent);
        finish();
    }

    //If user press home button and come in the game from memory then this
    //method will continue the timer from the previous time it left
    @Override
    protected void onRestart() {
        super.onRestart();
        countDownTimer.start();
    }

    //When activity is destroyed then this will cancel the timer
    @Override
    protected void onStop() {
        super.onStop();
        countDownTimer.cancel();
    }

    //This will pause the time
    @Override
    protected void onPause() {
        super.onPause();
        countDownTimer.cancel();
    }

    //On BackPressed
    @Override
    public void onBackPressed() {
        Intent intent = new Intent(this, HomeScreen.class);
        startActivity(intent);
        finish();
    }

    //This dialog is show to the user after he ans correct
    public void correctDialog() {
        final Dialog dialogCorrect = new Dialog(MainGameActivity.this);
        dialogCorrect.requestWindowFeature(Window.FEATURE_NO_TITLE);
        if (dialogCorrect.getWindow() != null) {
            ColorDrawable colorDrawable = new ColorDrawable(Color.TRANSPARENT);
            dialogCorrect.getWindow().setBackgroundDrawable(colorDrawable);
        }
        dialogCorrect.setContentView(R.layout.dialog_correct);
        dialogCorrect.setCancelable(false);
        dialogCorrect.show();

        //Since the dialog is show to user just pause the timer in background
        onPause();


        TextView correctText = (TextView) dialogCorrect.findViewById(R.id.correctText);
        FButton buttonNext = (FButton) dialogCorrect.findViewById(R.id.dialogNext);

        //Setting type faces
        correctText.setTypeface(sb);
        buttonNext.setTypeface(sb);

        //OnCLick listener to go next que
        buttonNext.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //This will dismiss the dialog
                dialogCorrect.dismiss();
                //it will increment the question number
                qid++;
                //get the que and 4 option and store in the currentQuestion
                currentQuestion = list.get(qid);
                //Now this method will set the new que and 4 options
                updateQueAndOptions();
                //reset the color of buttons back to white
                resetColor();
                //Enable button - remember we had disable them when user ans was correct in there particular button methods
                enableButton();
            }
        });
    }


    //This method will make button color white again since our one button color was turned green
    public void resetColor() {
        buttonA.setButtonColor(ContextCompat.getColor(getApplicationContext(),R.color.white));
        buttonB.setButtonColor(ContextCompat.getColor(getApplicationContext(),R.color.white));
        buttonC.setButtonColor(ContextCompat.getColor(getApplicationContext(),R.color.white));
        buttonD.setButtonColor(ContextCompat.getColor(getApplicationContext(),R.color.white));
    }

    //This method will disable all the option button
    public void disableButton() {
        buttonA.setEnabled(false);
        buttonB.setEnabled(false);
        buttonC.setEnabled(false);
        buttonD.setEnabled(false);
    }

    //This method will all enable the option buttons
    public void enableButton() {
        buttonA.setEnabled(true);
        buttonB.setEnabled(true);
        buttonC.setEnabled(true);
        buttonD.setEnabled(true);
    }


}

package sarveshchavan777.triviaquiz;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;


public class PlayAgain extends Activity {

    Button playAgain;
    TextView wrongAnsText;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.play_again);
       //Initialize
        playAgain = (Button) findViewById(R.id.playAgainButton);
        wrongAnsText = (TextView)findViewById(R.id.wrongAns);

        //play again button onclick listener
        playAgain.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(PlayAgain.this, MainGameActivity.class);
                startActivity(intent);
                finish();
            }
        });

        //Setting typefaces for textview and button - this will give stylish fonts on textview and button
        Typeface typeface = Typeface.createFromAsset(getAssets(),"fonts/shablagooital.ttf");
        playAgain.setTypeface(typeface);
        wrongAnsText.setTypeface(typeface);
    }

    @Override
    public void onBackPressed() {
        finish();
    }
}

package sarveshchavan777.triviaquiz;

import android.content.Intent;
import android.graphics.Typeface;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;

import info.hoang8f.widget.FButton;

public class Time_Up extends AppCompatActivity {
    FButton playAgainButton;
    TextView timeUpText;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_time__up);
        //Initialize
        playAgainButton = (FButton)findViewById(R.id.playAgainButton);
        timeUpText = (TextView)findViewById(R.id.timeUpText);

        //play again button onclick listener
        playAgainButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(Time_Up.this,MainGameActivity.class);
                startActivity(intent);
                finish();


            }
        });


        //Setting typefaces for textview and button - this will give stylish fonts on textview and button
        Typeface typeface = Typeface.createFromAsset(getAssets(),"fonts/shablagooital.ttf");
        timeUpText.setTypeface(typeface);
        playAgainButton.setTypeface(typeface);
    }

    @Override
    public void onBackPressed() {
        super.onBackPressed();
        finish();
    }
}

package sarveshchavan777.triviaquiz;

import android.app.Activity;

public class TriviaQuestion extends Activity {
    private int id;
    private String question;
    private String opta;
    private String optb;
    private String optc;
    private String optd;
    private String answer;

    public TriviaQuestion(String q, String oa, String ob, String oc, String od, String ans) {

        question = q;
        opta = oa;
        optb = ob;
        optc = oc;
        optd = od;
        answer = ans;
    }

    public TriviaQuestion() {
        id = 0;
        question = "";
        opta = "";
        optb = "";
        optc = "";
        optd = "";
        answer = "";
    }

    public String getQuestion() {
        return question;
    }

    public String getOptA() {
        return opta;
    }

    public String getOptB() {
        return optb;
    }

    public String getOptC() {
        return optc;
    }

    public String getOptD() {
        return optd;
    }

    public String getAnswer() {
        return answer;
    }

    public void setId(int i) {
        id = i;
    }

    public void setQuestion(String q1) {
        question = q1;
    }

    public void setOptA(String o1) {
        opta = o1;
    }

    public void setOptB(String o2) {
        optb = o2;
    }

    public void setOptC(String o3) {
        optc = o3;
    }

    public void setOptD(String o4) {
        optd = o4;
    }

    public void setAnswer(String ans) {
        answer = ans;
    }


}

package sarveshchavan777.triviaquiz;


import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

import java.util.ArrayList;
import java.util.List;


class TriviaQuizHelper extends SQLiteOpenHelper {

    private Context context;
    private static final String DB_NAME = "TQuiz.db";

    //If you want to add more questions or wanna update table values
    //or any kind of modification in db just increment version no.
    private static final int DB_VERSION = 3;
    //Table name
    private static final String TABLE_NAME = "TQ";
    //Id of question
    private static final String UID = "_UID";
    //Question
    private static final String QUESTION = "QUESTION";
    //Option A
    private static final String OPTA = "OPTA";
    //Option B
    private static final String OPTB = "OPTB";
    //Option C
    private static final String OPTC = "OPTC";
    //Option D
    private static final String OPTD = "OPTD";
    //Answer
    private static final String ANSWER = "ANSWER";
    //So basically we are now creating table with first column-id , sec column-question , third column -option A, fourth column -option B , Fifth column -option C , sixth column -option D , seventh column - answer(i.e ans of  question)
    private static final String CREATE_TABLE = "CREATE TABLE " + TABLE_NAME + " ( " + UID + " INTEGER PRIMARY KEY AUTOINCREMENT , " + QUESTION + " VARCHAR(255), " + OPTA + " VARCHAR(255), " + OPTB + " VARCHAR(255), " + OPTC + " VARCHAR(255), " + OPTD + " VARCHAR(255), " + ANSWER + " VARCHAR(255));";
    //Drop table query
    private static final String DROP_TABLE = "DROP TABLE IF EXISTS " + TABLE_NAME;

    TriviaQuizHelper(Context context) {
        super(context, DB_NAME, null, DB_VERSION);
        this.context = context;
    }

    @Override
    public void onCreate(SQLiteDatabase sqLiteDatabase) {
        //OnCreate is called only once
        sqLiteDatabase.execSQL(CREATE_TABLE);
    }

    @Override
    public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {
        //OnUpgrade is called when ever we upgrade or increment our database version no
        sqLiteDatabase.execSQL(DROP_TABLE);
        onCreate(sqLiteDatabase);
    }

    void allQuestion() {
        ArrayList<TriviaQuestion> arraylist = new ArrayList<>();

        arraylist.add(new TriviaQuestion("Galileo was an Italian astronomer who developed?", "Telescope", "Airoplane", "Electricity", "Train", "Telescope"));

        arraylist.add(new TriviaQuestion("Who is the father of Geometry ?", "Aristotle", "Euclid", "Pythagoras", "Kepler", "Euclid"));

        arraylist.add(new TriviaQuestion("Who was known as Iron man of India ?", "Govind Ballabh Pant", "Jawaharlal Nehru", "Subhash Chandra Bose", "Sardar Vallabhbhai Patel", "Sardar Vallabhbhai Patel"));

        arraylist.add(new TriviaQuestion("The first woman in space was ?", "Valentina Tereshkova", "Sally Ride", "Naidia Comenci", "Tamara Press", "Valentina Tereshkova"));

        arraylist.add(new TriviaQuestion("Who is the Flying Sikh of India ?", "Mohinder Singh", "Joginder Singh", "Ajit Pal Singh", "Milkha singh", "Milkha singh"));

        arraylist.add(new TriviaQuestion("The Indian to beat the computers in mathematical wizardry is", "Ramanujam", "Rina Panigrahi", "Raja Ramanna", "Shakunthala Devi", "Shakunthala Devi"));

        arraylist.add(new TriviaQuestion("Who is Larry Pressler ?", "Politician", "Painter", "Actor", "Tennis player", "Politician"));

        arraylist.add(new TriviaQuestion("Michael Jackson is a distinguished person in the field of ?", "Pop Music", "Jounalism", "Sports", "Acting", "Pop Music"));

        arraylist.add(new TriviaQuestion("The first Indian to swim across English channel was ?", "V. Merchant", "P. K. Banerji", "Mihir Sen", "Arati Saha", "Mihir Sen"));

        arraylist.add(new TriviaQuestion("Who was the first Indian to make a movie?", "Dhundiraj Govind Phalke", " Asha Bhonsle", " Ardeshir Irani", "V. Shantaram", "Dhundiraj Govind Phalke"));

        arraylist.add(new TriviaQuestion("Who is known as the ' Saint of the gutters ?", "B.R.Ambedkar", "Mother Teresa", "Mahatma Gandhi", "Baba Amte", "Mother Teresa"));

        arraylist.add(new TriviaQuestion("Who invented the famous formula E=mc^2", "Albert Einstein", "Galilio", "Sarvesh", "Bill Gates", "Albert Einstein"));

        arraylist.add(new TriviaQuestion("Who is elected as president of us 2016", "Donald Trump", "Hilary Clinton", "Jhon pol", "Barack Obama", "Donald Trump"));

        arraylist.add(new TriviaQuestion("Who was the founder of company Microsoft", "Bill Gates", "Bill Clinton", "Jhon rio", "Steve jobs", "Bill Gates"));

        arraylist.add(new TriviaQuestion("Who was the founder of company Apple ?", "Steve Jobs", "Steve Washinton", "Bill Gates", "Jobs Wills", "Steve Jobs"));

        arraylist.add(new TriviaQuestion("Who was the founder of company Google ?", "Steve Jobs", "Bill Gates", "Larry Page", "Sundar Pichai", "Larry Page"));

        arraylist.add(new TriviaQuestion("Who is know as god of cricket ?", "Sachin Tendulkar", "Kapil Dev", "Virat Koli", "Dhoni", "Sachin Tendulkar"));

        arraylist.add(new TriviaQuestion("who has won ballon d'or of 2015 ?", "Lionel Messi", "Cristiano Ronaldo", "Neymar", "Kaka", "Lionel Messi"));

        arraylist.add(new TriviaQuestion("who has won ballon d'or of 2014 ?", "Neymar", "Lionel Messi", "Cristiano Ronaldo", "Kaka", "Cristiano Ronaldo"));

        arraylist.add(new TriviaQuestion("the Founder of the most famous gaming platform steam is ?", "Bill Cliton", "Bill Williams", "Gabe Newell", "Bill Gates", "Gabe Newell"));

        this.addAllQuestions(arraylist);

    }


    private void addAllQuestions(ArrayList<TriviaQuestion> allQuestions) {
        SQLiteDatabase db = this.getWritableDatabase();
        db.beginTransaction();
        try {
            ContentValues values = new ContentValues();
            for (TriviaQuestion question : allQuestions) {
                values.put(QUESTION, question.getQuestion());
                values.put(OPTA, question.getOptA());
                values.put(OPTB, question.getOptB());
                values.put(OPTC, question.getOptC());
                values.put(OPTD, question.getOptD());
                values.put(ANSWER, question.getAnswer());
                db.insert(TABLE_NAME, null, values);
            }
            db.setTransactionSuccessful();
        } finally {
            db.endTransaction();
            db.close();
        }
    }


    List<TriviaQuestion> getAllOfTheQuestions() {

        List<TriviaQuestion> questionsList = new ArrayList<>();
        SQLiteDatabase db = this.getWritableDatabase();
        db.beginTransaction();
        String coloumn[] = {UID, QUESTION, OPTA, OPTB, OPTC, OPTD, ANSWER};
        Cursor cursor = db.query(TABLE_NAME, coloumn, null, null, null, null, null);


        while (cursor.moveToNext()) {
            TriviaQuestion question = new TriviaQuestion();
            question.setId(cursor.getInt(0));
            question.setQuestion(cursor.getString(1));
            question.setOptA(cursor.getString(2));
            question.setOptB(cursor.getString(3));
            question.setOptC(cursor.getString(4));
            question.setOptD(cursor.getString(5));
            question.setAnswer(cursor.getString(6));
            questionsList.add(question);
        }

        db.setTransactionSuccessful();
        db.endTransaction();
        cursor.close();
        db.close();
        return questionsList;
    }
}