handler

package com.example.quiz.AccountActivity;


import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.os.Handler;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.example.quiz.AccountActivity.Model.QuestionFirebase;
import com.example.quiz.R;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;

public class QuizOnlineActivity extends AppCompatActivity {

    Button beback,b1,b2,b3,b4,accept,reset;
    TextView question, timer, maintitle;
    private CountDownTimer countDownTimer;


    int total = 1;
    int questiontag = 0;
    int correct = 0;
    int wrong = 0;
    //int accept_er = 0;


    DatabaseReference databaseReference;

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

        b1 = findViewById(R.id.button1);
        b2 = findViewById(R.id.button2);
        b3 = findViewById(R.id.button3);
        b4 = findViewById(R.id.button4);

        question = findViewById(R.id.question);
        timer = findViewById(R.id.timer);
        maintitle = findViewById(R.id.maintitle);

        accept = findViewById(R.id.accept);

        reset = findViewById(R.id.reset);

        beback = findViewById(R.id.beback);
        beback.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                beback.setBackgroundColor(Color.YELLOW);
                Handler handler = new Handler();
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        beback.setBackgroundColor(Color.parseColor("#FFFFFF"));
                        Intent intent = new Intent(QuizOnlineActivity.this, ProfileActivity.class);
                        startActivity(intent);
                    }
                },0);

            }
        });

        /*accept.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                return false;
            }
        });*/

        accept.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                accept.setBackgroundColor(Color.YELLOW);
                maintitle.setVisibility(v.GONE);
                accept.setText("Potwierdź");
                beback.setText("Przerwij");
                b1.setVisibility(v.VISIBLE);
                b2.setVisibility(v.VISIBLE);
                b3.setVisibility(v.VISIBLE);
                b4.setVisibility(v.VISIBLE);
                question.setVisibility(v.VISIBLE);
                timer.setVisibility(v.VISIBLE);
                reset.setVisibility(v.VISIBLE);
                Handler handler = new Handler();
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        accept.setBackgroundColor(Color.parseColor("#FFFFFF"));
                        updateQuestions();
                    }
                },0);
            }
        });

    }



    private boolean isNetworkAvailable() {
        ConnectivityManager connectivityManager
                = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
        return activeNetworkInfo != null && activeNetworkInfo.isConnected();
    }

    private void updateQuestions()
    {
        if(isNetworkAvailable()==false)
        {
            Toast.makeText(QuizOnlineActivity.this, "Brak połączenia z internetem", Toast.LENGTH_SHORT).show();

        }
        else if(isNetworkAvailable()==true && total==31)
        {
            Intent i = new Intent(getApplicationContext(), ResultActivity.class);
            i.putExtra("Łącznie pytań:", String.valueOf(questiontag));
            i.putExtra("Poprawne odpowiedzi:", String.valueOf(correct));
            i.putExtra("Złe odpowiedzi:", String.valueOf(wrong));
            startActivity(i);
        }
        else
        {
            databaseReference = FirebaseDatabase.getInstance().getReference().child("questions").child(String.valueOf(total));
            databaseReference.addValueEventListener(new ValueEventListener() {
                @Override
                public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
                    final QuestionFirebase questionFirebase = dataSnapshot.getValue(QuestionFirebase.class);

                    question.setText(questionFirebase.getQuestion());
                    b1.setText(questionFirebase.getOption1());
                    b2.setText(questionFirebase.getOption2());
                    b3.setText(questionFirebase.getOption3());
                    b4.setText(questionFirebase.getOption4());

                    //final boolean[] tmp1 = new boolean[1];
                    //final boolean[] tmp2 = new boolean[1];
                    //final boolean[] tmp3 = new boolean[1];
                    //final boolean[] tmp4 = new boolean[1];

                    //tmp1[0]=true;
                    //tmp2[0]=true;
                    //tmp3[0]=true;
                    //tmp4[0]=true;

                    //final String[] s1 = {String.valueOf(tmp1)};
                    //final String[] s2 = {String.valueOf(tmp2)};
                    //final String[] s3 = {String.valueOf(tmp4)};
                    //final String[] s4 = {String.valueOf(tmp4)};

                    final boolean[] varControlOne = {true};
                    final boolean[] varControlTwo = {true};
                    final boolean[] varControlThree = {true};
                    final boolean[] varControlFour = {true};


                    if(b1.getText().toString().equals(questionFirebase.getAnswer1()))
                    {
                        varControlOne[0] = false;
                    }
                    else
                    {
                        varControlOne[0] = true;
                    }
                    if(b2.getText().toString().equals(questionFirebase.getAnswer2()))
                    {
                        varControlTwo[0] = false;
                    }
                    else
                    {
                        varControlTwo[0] = true;
                    }
                    if(b3.getText().toString().equals(questionFirebase.getAnswer3()))
                    {
                        varControlThree[0] = false;
                    }
                    else
                    {
                        varControlThree[0] = true;
                    }
                    if(b4.getText().toString().equals(questionFirebase.getAnswer4()))
                    {
                        varControlFour[0] = false;
                    }
                    else
                    {
                        varControlFour[0] = true;
                    }


                    b1.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View view) {
                            b1.setBackgroundColor(Color.YELLOW);
                            if(b1.getText().toString().equals(questionFirebase.getAnswer1()))
                            {
                                varControlOne[0] = true;
                            }
                        }
                    });

                    b2.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View v) {
                            b2.setBackgroundColor(Color.YELLOW);
                            if(b2.getText().toString().equals(questionFirebase.getAnswer2()))
                            {
                                varControlTwo[0] = true;
                            }

                        }
                    });

                    b3.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View v) {
                            b3.setBackgroundColor(Color.YELLOW);
                            if(b3.getText().toString().equals(questionFirebase.getAnswer3()))
                            {
                                varControlThree[0] = true;
                            }
                        }
                    });

                    b4.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View v) {
                            b4.setBackgroundColor(Color.YELLOW);
                            if(b4.getText().toString().equals(questionFirebase.getAnswer4()))
                            {
                                varControlFour[0] = true;
                            }
                        }
                    });

                    reset.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View v) {
                            reset.setBackgroundColor(Color.YELLOW);
                            b1.setBackgroundColor(Color.WHITE);
                            b2.setBackgroundColor(Color.WHITE);
                            b3.setBackgroundColor(Color.WHITE);
                            b4.setBackgroundColor(Color.WHITE);
                            varControlOne[0] = true;
                            varControlTwo[0] = true;
                            varControlThree[0] = true;
                            varControlFour[0] = true;
                            if(b1.getText().toString().equals(questionFirebase.getAnswer1()))
                            {
                                varControlOne[0] = false;
                            }
                            else
                            {
                                varControlOne[0] = true;
                            }
                            if(b2.getText().toString().equals(questionFirebase.getAnswer2()))
                            {
                                varControlTwo[0] = false;
                            }
                            else
                            {
                                varControlTwo[0] = true;
                            }
                            if(b3.getText().toString().equals(questionFirebase.getAnswer3()))
                            {
                                varControlThree[0] = false;
                            }
                            else
                            {
                                varControlThree[0] = true;
                            }
                            if(b4.getText().toString().equals(questionFirebase.getAnswer4()))
                            {
                                varControlFour[0] = false;
                            }
                            else
                            {
                                varControlFour[0] = true;
                            }
                            Handler handler = new Handler();
                            handler.postDelayed(new Runnable() {
                                @Override
                                public void run() {
                                    reset.setBackgroundColor(Color.WHITE);
                                }
                            },0);
                        }
                    });


                    accept.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                if(varControlOne[0] == true && varControlTwo[0] == true && varControlThree[0] == true && varControlFour[0]==true)
                                {
                                    correct++;
                                    questiontag++;
                                    Handler handler = new Handler();
                                    handler.postDelayed(new Runnable() {
                                        @Override
                                        public void run() {
                                            //countDownTimer.cancel();
                                            b1.setBackgroundColor(Color.parseColor("#FFFFFF"));
                                            b2.setBackgroundColor(Color.parseColor("#FFFFFF"));
                                            b3.setBackgroundColor(Color.parseColor("#FFFFFF"));
                                            b4.setBackgroundColor(Color.parseColor("#FFFFFF"));
                                            updateQuestions();
                                        }
                                    },0);
                                }
                                else
                                {
                                    wrong++;
                                    questiontag++;
                                    Handler handler = new Handler();
                                    handler.postDelayed(new Runnable() {
                                        @Override
                                        public void run() {
                                            b1.setBackgroundColor(Color.parseColor("#FFFFFF"));
                                            b2.setBackgroundColor(Color.parseColor("#FFFFFF"));
                                            b3.setBackgroundColor(Color.parseColor("#FFFFFF"));
                                            b4.setBackgroundColor(Color.parseColor("#FFFFFF"));
                                            updateQuestions();
                                        }
                                    },0);
                                }
                            }
                        });
                }

                @Override
                public void onCancelled(@NonNull DatabaseError databaseError) {

                }
            });
        }
        total++;
    }



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


}