OnClick listener acts strange (1 click - calls it more than once?)
<p>I made a simple quiz game for android, right now there's only 10 questions, and 40 answers. (4 answers for each question) Sometimes when I hit a button it gives me more than one correct answer at a time! Any idea what's wrong with this code:</p>

<pre><code>public class ETBetaActivity extends Activity implements View.OnClickListener {

    Button answer_1,
    answer_2,answer_3,
    answer_4,main;

    TextView q_textview,
    tip;

    private String a1,a2,a3,a4 = "";

    private int i1 = 0;
    public static int correct = 0;

    private boolean alive = true;

    MediaPlayer button_click;

    private String[] questions =
   {"Q1", 
    "Q2",
    "Q3", 
    "Q4",
    "Q5", //5
    "Q6", 
    "Q7", 
    "Q8", 
    "Q9",
    "Q10" //10
    };
    public static int question_amount = 10;
    private String[] answers_correct =
   {"Correct answer - 1",
    "Correct answer - 2",
    "Correct answer - 3", 
    "Correct answer - 4",
    "Correct answer - 5",
    "Correct answer - 6",
    "Correct answer - 7",
    "Correct answer - 8",
    "Correct answer - 9",
    "Correct answer - 10"
    };

    private String[][] answers_wrong = 
    { {"Q1-1", "Q1-2" , "Q1-3"},
      {"Q2-1", "Q2-2" , "Q2-3"},
      {"Q3-1", "Q3-2" , "Q3-3"},
      {"Q4-1", "Q4-2" , "Q4-3"},
      {"Q5-1", "Q5-2" , "Q5-3"},
      {"Q6-1", "Q6-2" , "Q6-3"},
      {"Q7-1", "Q7-2" , "Q7-3"},
      {"Q8-1", "Q8-2" , "Q8-3"},
      {"Q9-1", "Q9-2" , "Q9-3"},
      {"Q10-1", "Q10-2" , "Q10-3"}

    };


    List&lt;String&gt; question_list = new ArrayList&lt;String&gt;();
    List&lt;String&gt; answer_list_correct = new ArrayList&lt;String&gt;();


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        getData();
        Game(i1);
    }


    @Override
    public void onClick(View view) {
        if (alive == false) {
        //  startActivity(new Intent("com.aleksei.etb.END"));
            return;
        }
        button_click = MediaPlayer.create(this, R.raw.button_click);
        button_click.start();
        switch(view.getId()){
        case R.id.button5: //main
            break;
        case R.id.button1: //answer_1
            if(isCorrect(1))
                correct++;


            break;
        case R.id.button2: //answer_2
            if(isCorrect(2))
                correct++;

            break;
        case R.id.button3: //answer_3
            if(isCorrect(3))
                correct++;

            break;
        case R.id.button4: //answer_3
            if(isCorrect(4))
                correct++;


            break;

        default:
            break;


        }
        Game(i1);
        tip.setText("Correct answers: "+correct);
    }


    public static int getResults(){
        int value = (int) Math.floor((correct*5)/question_amount);
        if(value &lt;= 0)
        return 1;
        else
        return value;
    }

    private boolean isCorrect(int button){
        for (int i = 0; i &lt; answers_correct.length; i++){
        if(button == 1 &amp;&amp; a1 == answers_correct[i]
            || button == 2 &amp;&amp; a2 == answers_correct[i]
            || button == 3 &amp;&amp; a3 == answers_correct[i]
            || button == 4 &amp;&amp; a4 == answers_correct[i])
            return true;
        }
        return false; 
    }

    private void Game(int q){
        if(i1 == question_amount) { //no more questions
            startActivity(new Intent("com.aleksei.etb.END"));
            alive = false;
            return;
        }
        try {
        main.setText("Dunno");
        String answer_list[] = {
        answers_correct[q], answers_wrong[q][0] , answers_wrong[q][1] , answers_wrong[q][2]     
        };

        Collections.shuffle(Arrays.asList(answer_list));
        answer_1.setText(answer_list[0]);
        answer_2.setText(answer_list[1]);
        answer_3.setText(answer_list[2]);
        answer_4.setText(answer_list[3]);
        a1 = answer_list[0];
        a2 = answer_list[1];
        a3 = answer_list[2];
        a4 = answer_list[3];
        q_textview.setText(questions[q]);
        } catch (Exception ex){}
        i1++;
    }
    private void getData(){
        //Getting the data
        main = (Button) findViewById(R.id.button5);
        answer_1 = (Button) findViewById(R.id.button1);
        answer_2 = (Button) findViewById(R.id.button2);
        answer_3 = (Button) findViewById(R.id.button3);
        answer_4 = (Button) findViewById(R.id.button4);
        q_textview = (TextView) findViewById(R.id.question);
        tip = (TextView) findViewById(R.id.answ1);

        //Making the buttons, actually work
        main.setOnClickListener(this);
        answer_1.setOnClickListener(this);
        answer_2.setOnClickListener(this);
        answer_3.setOnClickListener(this);
        answer_4.setOnClickListener(this);

        //Resets the text
        //Note to self: Replace with another ContectView
        main.setText("Begin!");
        answer_4.setText("");
        answer_3.setText("");
        answer_2.setText("");
        answer_1.setText("");
        tip.setText("");
    }

    }
</code></pre>

<p>I even tried something like</p>

<pre><code>private boolean getAnswer = false;
 private String correctAnswer;



    private boolean isCorrect(int button){
        if(getAnswer == true) {
        if(button == 1 &amp;&amp; a1 == correctAnswer
        || button == 2 &amp;&amp; a2 == correctAnswer
        || button == 3 &amp;&amp; a3 == correctAnswer
        || button == 4 &amp;&amp; a4 == correctAnswer) 
        return true; 
        }

        return false;
    }
</code></pre>

<p>Inside Game(int) :</p>

<pre><code>getAnswer = false;
correctAnswer = answers_correct[q];
</code></pre>

<p>Didnt help.</p>

<p><em>I hope I made my self clear, if not, ask.</em></p>

<p>Thanks.</p>

<p>Edit:
Tried using these in the onCreate method</p>

<pre><code>answer_1.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {

                if(isCorrect(1))
                    correct++;

                 Game(i1);
                 tip.setText("Correct answers "+correct);

            }
        });

        answer_2.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {

                if(isCorrect(2))
                    correct++;

                 Game(i1);
                 tip.setText("Correct answers "+correct);

            }
        });

        answer_3.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {

                if(isCorrect(3))
                    correct++;

                 Game(i1);
                 tip.setText("Correct answers "+correct);

            }
        });

        answer_4.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {

                if(isCorrect(4))
                    correct++;

                 Game(i1);
                 tip.setText("Correct answers "+correct);

            }
        });
</code></pre>

<p>Didn't help.</p>
