IqTest.java

package com.example.alexm.iqtest;

import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.ScrollView;
import android.widget.TextView;
import android.widget.Toast;

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

public class IqTest extends AppCompatActivity {
    LinearLayout linearLayout;
    TextView question;
    RadioGroup[] answerGroup;
    RadioButton[] answer;
    Button finishButton;
    Button restartButton;
    TextView totalScore;
    RadioButton[] checkedRadioButton;
    ArrayList<RadioButton> correctAnswerRadios;
    ArrayList<RadioButton> wrongAnswersRadios;
    public static int score = 0;
    public static int numberOfQuestions = 5;
    public static int numberOfAnswers = 4;

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

        ScrollView scrollView = (ScrollView) findViewById(R.id.scrollView);

        linearLayout = new LinearLayout(this);
        LinearLayout.LayoutParams linearLayoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
        linearLayout.setLayoutParams(linearLayoutParams);
        linearLayout.setOrientation(linearLayout.VERTICAL);
        //linearLayout.setPadding(0, 110, 0, 0);
        scrollView.addView(linearLayout);

        TextView testTitle = new TextView(this);
        testTitle.setText(R.string.title_test);
        testTitle.setTextSize(TypedValue.COMPLEX_UNIT_SP, 20);
        testTitle.setGravity(Gravity.CENTER);
        testTitle.setTextColor(Color.RED);
        linearLayout.addView(testTitle);

        List<Question> questions = new ArrayList<Question>();
		
        // Inserting Questions
        questions.add(new Question("1. Cate cifre contine anul 2015?", 1));
        questions.add(new Question("2. Cate anotimpuri exista?", 2));
        questions.add(new Question("3. Care este capitala Americii?", 3));
        questions.add(new Question("4. In an a fost Revolutia Romana?", 4));
        questions.add(new Question("5. In an s-a terminat WWII?", 5));
		
		    List<Answer> answers = new ArrayList<Answer>();
		
        // Inserting Answers / Correct Answer (1 for true, 0 for false)
        answers.add(new Answer("2", 1, 0));
        answers.add(new Answer("3", 1, 0));
        answers.add(new Answer("4", 1, 1));
        answers.add(new Answer("5", 1, 0));

        answers.add(new Answer("2", 2, 0));
        answers.add(new Answer("3", 2, 0));
        answers.add(new Answer("4", 2, 1));
        answers.add(new Answer("7", 2, 0));

        answers.add(new Answer("NY", 3, 0));
        answers.add(new Answer("WA", 3, 1));
        answers.add(new Answer("CH", 3, 0));
        answers.add(new Answer("LA", 3, 0));

        answers.add(new Answer("1944", 4, 0));
        answers.add(new Answer("2011", 4, 0));
        answers.add(new Answer("1918", 4, 0));
        answers.add(new Answer("1989", 4, 1));

        answers.add(new Answer("1944", 5, 1));
        answers.add(new Answer("1948", 5, 0));
        answers.add(new Answer("1924", 5, 0));
        answers.add(new Answer("1914", 5, 0));

        // Reading all Questions
        List<Question> questions = db.getAllQuestions();
        // Reading all Answers
        final List<Answer> answers = db.getAllAnswers();

        //  List of Correct Answers
        correctAnswerRadios = new ArrayList<>();
        //  List of Wrong Answers
        wrongAnswersRadios = new ArrayList<>();

		    for (Question qn : questions) {
            RadioGroup answerGroup = new RadioGroup(this);
            answerGroup.setOrientation(RadioGroup.VERTICAL);
            for (Answer an : qn.getAnswers()) {
                if (qn.getID() == an.getQuestion_id_answer()) {
                    RadioButton answer = new RadioButton(this);
                    answer.setText(an.getAnswer());
                    answerGroup.addView(answer);
                }
            }
            linearLayout.addView(answerGroup);
        }

        finishButton = new Button(this);
        finishButton.setText(R.string.finishButton);
        LinearLayout.LayoutParams buttonParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
        finishButton.setLayoutParams(buttonParams);
        linearLayout.addView(finishButton);

        restartButton = new Button(this);
        restartButton.setText(R.string.restartButton);
        restartButton.setLayoutParams(buttonParams);
        linearLayout.addView(restartButton);

        totalScore = new TextView(this);
        totalScore.setTextSize(TypedValue.COMPLEX_UNIT_SP, 20);
        totalScore.setTextColor(Color.RED);
        totalScore.setVisibility(totalScore.INVISIBLE);
        linearLayout.addView(totalScore);

        restartButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = getIntent();
                intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
                finish();
                startActivity(intent);
            }
        });
    }
}