Как сбросить таймер обратного отсчета в той же активности в игре-викторине?

Question

Я пытаюсь создать игру в кваз, и я решил добавить таймер обратного отсчета, чтобы сделать его более сложным, и я застрял в большом количестве. Если я отвечаю на вопрос неправильно, он работает нормально, однако, если я отвечаю правильно, он прерывает таймер вычитает более 1 / se c и индикатор выполнения более 10 / с (или за тик). Пожалуйста, помогите мне исправить этот чертов таймер.

package com.sandu.quizz4games.Activities;

import android.content.Intent;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.os.Handler;
import android.view.View;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

import com.sandu.quizz4games.QuestionsEn;
import com.sandu.quizz4games.R;

import java.util.Random;

public class GameActivity extends AppCompatActivity {

    private Button ans1_btn;
    private Button ans2_btn;
    private Button ans3_btn;
    private Button ans4_btn;
    private TextView question, score, question_no, textTimer;
    private QuestionsEn questions = new QuestionsEn();

    private String answer;
    private int questionsLength = questions.questions.length;
    private int uScore;
    private int uQuestionsAnswered = 1 ;

    ProgressBar progressBar;

    Random r;

    public CountDownTimer timer;


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

//        // Full Screen
//        getWindow().setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
//        //.....//
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);

        r = new Random();

        ans1_btn = findViewById(R.id.ans1_btn_game);
        ans2_btn = findViewById(R.id.ans2_btn_game);
        ans3_btn = findViewById(R.id.ans3_btn_game);
        ans4_btn = findViewById(R.id.ans4_btn_game);

        question = findViewById(R.id.q_area_game);

        score = findViewById(R.id.score_gameActivity);

        question_no = findViewById(R.id.q_number_game);



        // update question randomizer
        updateQuestion(r.nextInt(questionsLength));
        //...//

//



        question_no.setText(String.valueOf(1)+"/10");

        //Button Functions

        ans1_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (ans1_btn.getText() == answer){
                    correctAnswer();
                    ans1_btn.setBackgroundResource(R.drawable.answer_btn_correct);
                    disableButtons();
                    Handler handler = new Handler();
                    handler.postDelayed(new Runnable() {
                        public void run() {
                            resetButtons();
                            updateQuestion(r.nextInt(questionsLength));
                        }
                    }, 1000);
                    gameOver();

                }else
                    ans1_btn.setBackgroundResource(R.drawable.answer_btn_wrong);
                disableButtons();
                showCorrectAnswer();
                Handler handler = new Handler();
                handler.postDelayed(new Runnable() {
                    public void run() {
                        resetButtons();
                        updateQuestion(r.nextInt(questionsLength));
                    }
                }, 1000);
                wrongAnswer();
                gameOver();




            }
        });

        ans2_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (ans2_btn.getText() == answer){
                    correctAnswer();

                    ans2_btn.setBackgroundResource(R.drawable.answer_btn_correct);
                    disableButtons();
                    Handler handler = new Handler();
                    handler.postDelayed(new Runnable() {
                        public void run() {
                            resetButtons();
                            updateQuestion(r.nextInt(questionsLength));
                        }
                    }, 1000);
                    gameOver();

                }else
                    ans2_btn.setBackgroundResource(R.drawable.answer_btn_wrong);
                disableButtons();
                showCorrectAnswer();
                Handler handler = new Handler();
                handler.postDelayed(new Runnable() {
                    public void run() {
                        resetButtons();
                        updateQuestion(r.nextInt(questionsLength));
                    }
                }, 1000);
                wrongAnswer();
                gameOver();


            }

        });
        ans3_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (ans3_btn.getText() == answer){
                    correctAnswer();
                    ans3_btn.setBackgroundResource(R.drawable.answer_btn_correct);
                    disableButtons();
                    Handler handler = new Handler();
                    handler.postDelayed(new Runnable() {
                        public void run() {
                            resetButtons();
                            updateQuestion(r.nextInt(questionsLength));
                        }
                    }, 1000);
                    gameOver();


                }else
                    ans3_btn.setBackgroundResource(R.drawable.answer_btn_wrong);
                disableButtons();
                showCorrectAnswer();
                Handler handler = new Handler();
                handler.postDelayed(new Runnable() {
                    public void run() {
                        resetButtons();
                        updateQuestion(r.nextInt(questionsLength));
                    }
                }, 1000);
                wrongAnswer();
                gameOver();


            }
        });
        ans4_btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (ans4_btn.getText() == answer){
                    correctAnswer();
                    ans4_btn.setBackgroundResource(R.drawable.answer_btn_correct);
                    disableButtons();
                    Handler handler = new Handler();
                    handler.postDelayed(new Runnable() {
                        public void run() {
                            resetButtons();
                            updateQuestion(r.nextInt(questionsLength));
                        }
                    }, 1000);
                    gameOver();


                }else
                    ans4_btn.setBackgroundResource(R.drawable.answer_btn_wrong);
                disableButtons();
                showCorrectAnswer();
                Handler handler = new Handler();
                handler.postDelayed(new Runnable() {
                    public void run() {
                        resetButtons();
                        updateQuestion(r.nextInt(questionsLength));
                    }
                }, 1000);
                wrongAnswer();
                gameOver();


            }
        });


    }

    private void resetButtons() {
        ans1_btn.setBackgroundResource(R.drawable.answer_btn);
        ans2_btn.setBackgroundResource(R.drawable.answer_btn);
        ans3_btn.setBackgroundResource(R.drawable.answer_btn);
        ans4_btn.setBackgroundResource(R.drawable.answer_btn);
        ans1_btn.setEnabled(true);
        ans2_btn.setEnabled(true);
        ans3_btn.setEnabled(true);
        ans4_btn.setEnabled(true);




    }

    // Update Question Function
    private void updateQuestion(int num){


        question.setText(questions.getQuestions(num));
        ans1_btn.setText(questions.getChoice1(num));
        ans2_btn.setText(questions.getChoice2(num));
        ans3_btn.setText(questions.getChoice3(num));
        ans4_btn.setText(questions.getChoice4(num));


        answer = questions.getCorrectAnswer(num);
        timer();



    }
    //Other Functions
    private void wrongAnswer(){


        uScore -= 5;
        uQuestionsAnswered ++;

        if (uScore < 0){
            uScore = 0;
            score.setText("0");
        }
        question_no.setText(uQuestionsAnswered+"/10");
        score.setText(String.valueOf(uScore));
    }

    private void correctAnswer(){
        uScore +=15;
        score.setText(String.valueOf(uScore));
        question_no.setText(uQuestionsAnswered+"/10");

    }

    private void gameOver(){
        if (uQuestionsAnswered > 10){
            timer.cancel();
            startActivity(new Intent(GameActivity.this, HomeScreen.class));
        }
    }

    private void showCorrectAnswer(){
        timer.cancel();
        if (ans1_btn.getText() == answer){
            ans1_btn.setBackgroundResource(R.drawable.answer_btn_correct);
        }else if (ans2_btn.getText() == answer){
            ans2_btn.setBackgroundResource(R.drawable.answer_btn_correct);
        }else if (ans3_btn.getText() == answer){
            ans3_btn.setBackgroundResource(R.drawable.answer_btn_correct);
        }else if (ans4_btn.getText() == answer){
            ans4_btn.setBackgroundResource(R.drawable.answer_btn_correct);
        }
    }
    //...//
    private void disableButtons(){
        ans1_btn.setEnabled(false);
        ans2_btn.setEnabled(false);
        ans3_btn.setEnabled(false);
        ans4_btn.setEnabled(false);
    }

    private void timer(){

        textTimer = findViewById(R.id.textTimer);
        progressBar = findViewById(R.id.progressCircular);

        textTimer.setText(String.valueOf(10));
        progressBar.setProgress(100);
        //Timer
        timer = new CountDownTimer(10000, 1000) {

            public void onTick(long millisUntilFinished) {

                textTimer.setText(String.valueOf(millisUntilFinished / 1000));
                progressBar.setProgress(progressBar.getProgress()-10);

            }


            public void onFinish() {

                updateQuestion(r.nextInt(questionsLength));
                textTimer.setText(String.valueOf(10));
                progressBar.setProgress(100);
            }
        }.start();
    }

    @Override
    protected void onDestroy(){
        super.onDestroy();
        if (timer !=null){
            timer.cancel();
        }
    }
}