Крупное обновление

app/src/main/java/com/kolobochki/memory/MainActivity.java

@@ -28,13 +28,21 @@ public class MainActivity extends AppCompatActivity {
         navController = Navigation.findNavController(this, R.id.nav_host_fragment_activity_main);
 
         AppBarConfiguration appBarConfiguration = new AppBarConfiguration.Builder(
-                R.id.navigation_home, R.id.navigation_dashboard, R.id.navigation_task1)
+                R.id.navigation_home,
+                R.id.navigation_dashboard,
+                R.id.navigation_task1,
+                R.id.navigation_task2,
+                R.id.navigation_task3,
+                R.id.navigation_task4)
                 .build();
         NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration);
         NavigationUI.setupWithNavController(binding.navView, navController);
 
         navController.addOnDestinationChangedListener((controller, destination, arguments) -> {
-            if (destination.getId() == R.id.navigation_task1) {
+            if (destination.getId() == R.id.navigation_task1
+             || destination.getId() == R.id.navigation_task2
+             || destination.getId() == R.id.navigation_task3
+             || destination.getId() == R.id.navigation_task4) {
                 binding.navView.setVisibility(View.GONE);
             } else {
                 binding.navView.setVisibility(View.VISIBLE);

app/src/main/java/com/kolobochki/memory/fragment_task2.java

@@ -0,0 +1,299 @@
+package com.kolobochki.memory;
+
+import static com.kolobochki.memory.R.*;
+
+import android.os.Bundle;
+
+import androidx.activity.OnBackPressedCallback;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.fragment.app.Fragment;
+
+import android.os.Handler;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import androidx.navigation.NavController;
+import androidx.navigation.Navigation;
+import androidx.appcompat.app.AppCompatActivity;
+import android.widget.Button;
+import android.widget.GridLayout;
+import android.widget.ImageView;
+import android.widget.TextView;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Random;
+
+import com.kolobochki.memory.R;
+
+public class fragment_task2 extends Fragment {
+
+    private static final String ARG_PARAM1 = "param1";
+    private static final String ARG_PARAM2 = "param2";
+
+    private String mParam1;
+    private String mParam2;
+    private String previousTitle;
+    private boolean isGameComplete = false;
+
+    private List<Integer> sequence = new ArrayList<>();
+    private int currentStep = 0;
+    private int round = 1;
+    private int lives = 3;
+    private boolean isShowingSequence = false;
+    private boolean isWaitingForInput = false;
+
+    private Button redButton, greenButton, blueButton, yellowButton;
+    private ImageView centerImage;
+    private TextView roundText, livesText;
+    private GridLayout buttonsGrid;
+
+    private final int[] colorImages = {
+            R.drawable.simon_red,
+            R.drawable.simon_green,
+            R.drawable.simon_blue,
+            R.drawable.simon_yellow,
+            R.drawable.simon_off
+    };
+
+    public fragment_task2() {
+        // Required empty public constructor
+    }
+
+    public static fragment_task2 newInstance(String param1, String param2) {
+        fragment_task2 fragment = new fragment_task2();
+        Bundle args = new Bundle();
+        args.putString(ARG_PARAM1, param1);
+        args.putString(ARG_PARAM2, param2);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (getArguments() != null) {
+            mParam1 = getArguments().getString(ARG_PARAM1);
+            mParam2 = getArguments().getString(ARG_PARAM2);
+        }
+
+        OnBackPressedCallback backPressedCallback = new OnBackPressedCallback(true) {
+            @Override
+            public void handleOnBackPressed() {
+                if (!isGameComplete) {
+                    showExitConfirmationDialog();
+                } else {
+                    setEnabled(false);
+                    navigateHome();
+                }
+            }
+        };
+        requireActivity().getOnBackPressedDispatcher().addCallback(this, backPressedCallback);
+
+        if (getActivity() instanceof AppCompatActivity) {
+            ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
+            if (actionBar != null) {
+                actionBar.setTitle("Упражнение 2");
+            }
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,  Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.fragment_task2, container, false);
+
+        redButton = view.findViewById(R.id.redButton);
+        greenButton = view.findViewById(R.id.greenButton);
+        blueButton = view.findViewById(R.id.blueButton);
+        yellowButton = view.findViewById(R.id.yellowButton);
+        centerImage = view.findViewById(R.id.centerImage);
+        roundText = view.findViewById(R.id.roundText);
+        livesText = view.findViewById(R.id.livesText);
+        buttonsGrid = view.findViewById(R.id.buttonsGrid);
+
+        redButton.setOnClickListener(v -> onColorClicked(0));
+        greenButton.setOnClickListener(v -> onColorClicked(1));
+        blueButton.setOnClickListener(v -> onColorClicked(2));
+        yellowButton.setOnClickListener(v -> onColorClicked(3));
+
+        startNewGame();
+
+        return view;
+    }
+
+    private void startNewGame() {
+        sequence.clear();
+        round = 1;
+        lives = 3;
+        currentStep = 0;
+        updateUI();
+
+        for (int i = 0; i < 3; i++) {
+            generateNextSequence();
+        }
+
+        showSequence();
+    }
+
+    private void generateNextSequence() {
+        Random random = new Random();
+        sequence.add(random.nextInt(4));
+    }
+
+    private void showSequence() {
+        isShowingSequence = true;
+        isWaitingForInput = false;
+        buttonsGrid.setVisibility(View.INVISIBLE);
+
+        Handler handler = new Handler();
+        for (int i = 0; i < sequence.size(); i++) {
+            final int colorIndex = sequence.get(i);
+            handler.postDelayed(() -> showColor(colorIndex), i * 1000L);
+            handler.postDelayed(() -> resetCenterImage(), i * 1000L + 800L);
+        }
+
+        handler.postDelayed(() -> {
+            isShowingSequence = false;
+            isWaitingForInput = true;
+            currentStep = 0;
+            buttonsGrid.setVisibility(View.VISIBLE);
+            centerImage.setImageResource(R.drawable.simon_off);
+        }, sequence.size() * 1000L);
+    }
+
+    private void highlightButton(int colorIndex) {
+        switch (colorIndex) {
+            case 0:
+                redButton.setBackgroundResource(R.drawable.simon_red);
+                break;
+            case 1:
+                greenButton.setBackgroundResource(R.drawable.simon_green);
+                break;
+            case 2:
+                blueButton.setBackgroundResource(R.drawable.simon_blue);
+                break;
+            case 3:
+                yellowButton.setBackgroundResource(R.drawable.simon_yellow);
+                break;
+        }
+    }
+
+    private void showColor(int colorIndex) {
+        centerImage.setImageResource(colorImages[colorIndex]);
+    }
+
+    private void resetCenterImage() {
+        centerImage.setImageResource(R.drawable.simon_off);
+    }
+
+    private void resetButtons() {
+        redButton.setBackgroundResource(R.drawable.simon_off);
+        greenButton.setBackgroundResource(R.drawable.simon_off);
+        blueButton.setBackgroundResource(R.drawable.simon_off);
+        yellowButton.setBackgroundResource(R.drawable.simon_off);
+    }
+
+    private void onColorClicked(int colorIndex) {
+        if (!isWaitingForInput || isShowingSequence) return;
+
+        showColor(colorIndex);
+        new Handler().postDelayed(this::resetCenterImage, 300);
+
+        if (colorIndex == sequence.get(currentStep)) {
+            currentStep++;
+            if (currentStep == sequence.size()) {
+                round++;
+                currentStep = 0;
+                updateUI();
+                generateNextSequence();
+
+                new Handler().postDelayed(() -> {
+                    if (!isGameComplete) {
+                        showSequence();
+                    }
+                }, 1000);
+            }
+        } else {
+            lives--;
+            updateUI();
+            if (lives <= 0) {
+                gameOver();
+            } else {
+                new Handler().postDelayed(() -> {
+                    if (!isGameComplete) {
+                        currentStep = 0;
+                        showSequence();
+                    }
+                }, 1000);
+            }
+        }
+    }
+
+    private void updateUI() {
+        roundText.setText("Раунд: " + round);
+
+        StringBuilder hearts = new StringBuilder();
+        for (int i = 0; i < lives; i++) {
+            hearts.append("❤️");
+        }
+        livesText.setText(hearts.toString());
+    }
+
+    private void gameOver() {
+        isGameComplete = true;
+        isWaitingForInput = false;
+
+        new AlertDialog.Builder(requireContext())
+                .setTitle("Игра окончена")
+                .setMessage("Вы прошли " + round + " раундов!")
+                .setPositiveButton("Играть снова", (dialog, which) -> {
+                    isGameComplete = false;
+                    startNewGame();
+                })
+                .setNegativeButton("Выход", (dialog, which) -> navigateHome())
+                .setCancelable(false)
+                .show();
+    }
+
+    private void showExitConfirmationDialog() {
+        new AlertDialog.Builder(requireContext())
+                .setTitle("Закончить упражнение?")
+                .setMessage("Вы точно хотите закончить упражнение?")
+                .setPositiveButton("Да", (dialog, which) -> {
+                    NavController navController = Navigation.findNavController(requireView());
+                    navController.popBackStack();
+                })
+                .setNegativeButton("Нет", null)
+                .show();
+    }
+
+    private void navigateHome() {
+        NavController navController = Navigation.findNavController(requireView());
+        navController.popBackStack();
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        if (getActivity() != null && ((AppCompatActivity)getActivity()).getSupportActionBar() != null) {
+            ((AppCompatActivity)getActivity()).getSupportActionBar().hide();
+        }
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        if (getActivity() != null && ((AppCompatActivity)getActivity()).getSupportActionBar() != null) {
+            ((AppCompatActivity)getActivity()).getSupportActionBar().show();
+        }
+
+        if (getActivity() instanceof AppCompatActivity) {
+            ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
+            if (actionBar != null && previousTitle != null) {
+                actionBar.setTitle(previousTitle);
+            }
+        }
+    }
+}

app/src/main/java/com/kolobochki/memory/fragment_task3.java

@@ -0,0 +1,247 @@
+package com.kolobochki.memory;
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.util.DisplayMetrics;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.GridLayout;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.activity.OnBackPressedCallback;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.fragment.app.Fragment;
+import androidx.navigation.NavController;
+import androidx.navigation.Navigation;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Random;
+
+public class fragment_task3 extends Fragment {
+
+    private static final String ARG_PARAM1 = "param1";
+    private static final String ARG_PARAM2 = "param2";
+
+    private String mParam1;
+    private String mParam2;
+    private String previousTitle;
+    private boolean isGameComplete = false;
+
+    private GridLayout gridLayout;
+    private TextView roundTextView;
+    private TextView livesTextView;
+    private List<Integer> sequence = new ArrayList<>();
+    private List<Integer> userSequence = new ArrayList<>();
+    private int currentRound = 1;
+    private int lives = 3;
+    private int rows = 3;
+    private int cols = 3;
+    private final int SHOW_TIME = 4500;
+
+    public fragment_task3() {
+        // Required empty public constructor
+    }
+
+    public static fragment_task3 newInstance(String param1, String param2) {
+        fragment_task3 fragment = new fragment_task3();
+        Bundle args = new Bundle();
+        args.putString(ARG_PARAM1, param1);
+        args.putString(ARG_PARAM2, param2);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (getArguments() != null) {
+            mParam1 = getArguments().getString(ARG_PARAM1);
+            mParam2 = getArguments().getString(ARG_PARAM2);
+        }
+
+        OnBackPressedCallback backPressedCallback = new OnBackPressedCallback(true) {
+            @Override
+            public void handleOnBackPressed() {
+                if (!isGameComplete) {
+                    showExitConfirmationDialog();
+                } else {
+                    setEnabled(false);
+                    navigateHome();
+                }
+            }
+        };
+        requireActivity().getOnBackPressedDispatcher().addCallback(this, backPressedCallback);
+
+        if (getActivity() instanceof AppCompatActivity) {
+            ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
+            if (actionBar != null) {
+                actionBar.setTitle("Упражнение 3");
+            }
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.fragment_task3, container, false);
+
+        gridLayout = view.findViewById(R.id.gridLayout);
+        roundTextView = view.findViewById(R.id.roundTextView);
+        livesTextView = view.findViewById(R.id.livesTextView);
+
+        setupGame();
+
+        return view;
+    }
+
+    private void setupGame() {
+        sequence.clear();
+        userSequence.clear();
+        gridLayout.removeAllViews();
+
+        gridLayout.setRowCount(rows);
+        gridLayout.setColumnCount(cols);
+
+        DisplayMetrics displayMetrics = new DisplayMetrics();
+        getActivity().getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
+        int screenWidth = displayMetrics.widthPixels;
+        int cellSize = (int) (screenWidth * 0.8 / cols);
+
+        int totalCells = rows * cols;
+        for (int i = 1; i <= totalCells; i++) {
+            sequence.add(i);
+        }
+
+        Collections.shuffle(sequence);
+
+        for (int i = 0; i < totalCells; i++) {
+            Button button = new Button(getContext());
+            button.setTag(sequence.get(i));
+            button.setText(String.valueOf(sequence.get(i)));
+            button.setTextSize(24);
+            //button.setBackgroundResource(R.drawable.cell_background);
+
+            GridLayout.LayoutParams params = new GridLayout.LayoutParams();
+            params.width = cellSize;
+            params.height = cellSize;
+            params.rowSpec = GridLayout.spec(i / cols, 1f);
+            params.columnSpec = GridLayout.spec(i % cols, 1f);
+            params.setMargins(4, 4, 4, 4);
+
+            button.setLayoutParams(params);
+            gridLayout.addView(button);
+        }
+
+        updateUI();
+
+        new Handler().postDelayed(this::hideNumbers, SHOW_TIME);
+    }
+
+    private void hideNumbers() {
+        for (int i = 0; i < gridLayout.getChildCount(); i++) {
+            Button button = (Button) gridLayout.getChildAt(i);
+            button.setText("");
+            button.setOnClickListener(v -> {
+                Button clickedButton = (Button) v;
+                int number = (int) clickedButton.getTag();
+                userSequence.add(number);
+                clickedButton.setText(String.valueOf(number));
+
+                if (userSequence.size() == sequence.size()) {
+                    checkSequence();
+                }
+            });
+        }
+    }
+
+    private void checkSequence() {
+        boolean isCorrect = true;
+        for (int i = 0; i < sequence.size(); i++) {
+            if (!sequence.get(i).equals(userSequence.get(i))) {
+                isCorrect = false;
+                break;
+            }
+        }
+
+        if (isCorrect) {
+            currentRound++;
+            Toast.makeText(getContext(), "Правильно! Раунд " + currentRound, Toast.LENGTH_SHORT).show();
+            new Handler().postDelayed(this::setupGame, 1500);
+        } else {
+            lives--;
+            if (lives <= 0) {
+                gameOver();
+            } else {
+                Toast.makeText(getContext(), "Ошибка! Осталось жизней: " + lives, Toast.LENGTH_SHORT).show();
+                new Handler().postDelayed(this::setupGame, 1500);
+            }
+        }
+    }
+
+    private void gameOver() {
+        isGameComplete = true;
+        new AlertDialog.Builder(requireContext())
+                .setTitle("Игра окончена")
+                .setMessage("Вы прошли " + (currentRound - 1) + " раундов")
+                .setPositiveButton("OK", (dialog, which) -> navigateHome())
+                .setCancelable(false)
+                .show();
+    }
+
+    private void updateUI() {
+        roundTextView.setText("Раунд: " + currentRound);
+
+        StringBuilder hearts = new StringBuilder();
+        for (int i = 0; i < 3; i++) {
+            hearts.append(i < lives ? "❤️" : "");
+        }
+        livesTextView.setText(hearts.toString());
+    }
+
+    private void showExitConfirmationDialog() {
+        new AlertDialog.Builder(requireContext())
+                .setTitle("Закончить упражнение?")
+                .setMessage("Вы точно хотите закончить упражнение?")
+                .setPositiveButton("Да", (dialog, which) -> {
+                    NavController navController = Navigation.findNavController(requireView());
+                    navController.popBackStack();
+                })
+                .setNegativeButton("Нет", null)
+                .show();
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        if (getActivity() != null && ((AppCompatActivity)getActivity()).getSupportActionBar() != null) {
+            ((AppCompatActivity)getActivity()).getSupportActionBar().hide();
+        }
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        if (getActivity() != null && ((AppCompatActivity)getActivity()).getSupportActionBar() != null) {
+            ((AppCompatActivity)getActivity()).getSupportActionBar().show();
+        }
+
+        if (getActivity() instanceof AppCompatActivity) {
+            ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
+            if (actionBar != null && previousTitle != null) {
+                actionBar.setTitle(previousTitle);
+            }
+        }
+    }
+
+    private void navigateHome() {
+        NavController navController = Navigation.findNavController(requireView());
+        navController.popBackStack();
+    }
+}

app/src/main/java/com/kolobochki/memory/fragment_task4.java

@@ -0,0 +1,290 @@
+package com.kolobochki.memory;
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.GridLayout;
+import android.widget.ImageView;
+import android.widget.TextView;
+import androidx.activity.OnBackPressedCallback;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AlertDialog;
+import androidx.fragment.app.Fragment;
+import androidx.navigation.NavController;
+import androidx.navigation.Navigation;
+import androidx.appcompat.app.AppCompatActivity;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Random;
+
+public class fragment_task4 extends Fragment {
+
+    private static final String ARG_PARAM1 = "param1";
+    private static final String ARG_PARAM2 = "param2";
+
+    private String mParam1;
+    private String mParam2;
+    private String previousTitle;
+    private boolean isGameComplete = false;
+
+    private ImageView[][] cards = new ImageView[2][2];
+    private int[][] cardValues = new int[2][2];
+    private int changedRow = -1, changedCol = -1;
+    private int lives = 3;
+    private int round = 1;
+    private Handler handler = new Handler();
+    private Random random = new Random();
+    private TextView roundTextView;
+    private TextView livesTextView;
+    private GridLayout gridLayout;
+
+    public fragment_task4() {
+        // Required empty public constructor
+    }
+
+    public static fragment_task4 newInstance(String param1, String param2) {
+        fragment_task4 fragment = new fragment_task4();
+        Bundle args = new Bundle();
+        args.putString(ARG_PARAM1, param1);
+        args.putString(ARG_PARAM2, param2);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (getArguments() != null) {
+            mParam1 = getArguments().getString(ARG_PARAM1);
+            mParam2 = getArguments().getString(ARG_PARAM2);
+        }
+
+        OnBackPressedCallback backPressedCallback = new OnBackPressedCallback(true) {
+            @Override
+            public void handleOnBackPressed() {
+                if (!isGameComplete) {
+                    showExitConfirmationDialog();
+                } else {
+                    setEnabled(false);
+                    navigateHome();
+                }
+            }
+        };
+        requireActivity().getOnBackPressedDispatcher().addCallback(this, backPressedCallback);
+
+        if (getActivity() instanceof AppCompatActivity) {
+            ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
+            if (actionBar != null) {
+                actionBar.setTitle("Упражнение 4");
+            }
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.fragment_task4, container, false);
+
+        gridLayout = view.findViewById(R.id.grid_layout);
+        cards[0][0] = view.findViewById(R.id.card00);
+        cards[0][1] = view.findViewById(R.id.card01);
+        cards[1][0] = view.findViewById(R.id.card10);
+        cards[1][1] = view.findViewById(R.id.card11);
+
+        roundTextView = view.findViewById(R.id.round_text);
+        livesTextView = view.findViewById(R.id.lives_text);
+
+        gridLayout.setAlignmentMode(GridLayout.ALIGN_BOUNDS);
+        gridLayout.setUseDefaultMargins(true);
+
+        for (int i = 0; i < 2; i++) {
+            for (int j = 0; j < 2; j++) {
+                final int row = i;
+                final int col = j;
+                cards[i][j].setOnClickListener(v -> onCardClicked(row, col));
+            }
+        }
+
+        startNewRound();
+
+        return view;
+    }
+
+    private void startNewRound() {
+        if (!isAdded()) return;
+
+        roundTextView.setText("Раунд: " + round);
+        updateLivesDisplay();
+
+        List<Integer> availableImages = new ArrayList<>();
+        for (int i = 1; i <= 6; i++) {
+            availableImages.add(i);
+        }
+        Collections.shuffle(availableImages);
+
+        for (int i = 0; i < 2; i++) {
+            for (int j = 0; j < 2; j++) {
+                int index = i * 2 + j;
+                if (index < availableImages.size()) {
+                    cardValues[i][j] = availableImages.get(index);
+                    setCardImage(i, j, "tile" + cardValues[i][j]);
+                }
+            }
+        }
+
+        handler.postDelayed(() -> {
+            // Flip all cards to back
+            for (int i = 0; i < 2; i++) {
+                for (int j = 0; j < 2; j++) {
+                    setCardImage(i, j, "tile_back");
+                }
+            }
+
+            handler.postDelayed(() -> {
+                changedRow = random.nextInt(2);
+                changedCol = random.nextInt(2);
+
+                int newImage;
+                List<Integer> currentImages = new ArrayList<>();
+                for (int i = 0; i < 2; i++) {
+                    for (int j = 0; j < 2; j++) {
+                        if (!currentImages.contains(cardValues[i][j])) {
+                            currentImages.add(cardValues[i][j]);
+                        }
+                    }
+                }
+
+                do {
+                    newImage = random.nextInt(6) + 1;
+                } while (currentImages.contains(newImage));
+
+                cardValues[changedRow][changedCol] = newImage;
+
+                for (int i = 0; i < 2; i++) {
+                    for (int j = 0; j < 2; j++) {
+                        setCardImage(i, j, "tile" + cardValues[i][j]);
+                    }
+                }
+
+                setCardsClickable(true);
+
+            }, 750);
+        }, 1000);
+    }
+
+
+    private void onCardClicked(int row, int col) {
+        if (!isAdded()) return;
+
+        setCardsClickable(false);
+
+        if (row == changedRow && col == changedCol) {
+            // Correct guess
+            round++;
+            handler.postDelayed(() -> {
+                if (isAdded()) startNewRound();
+            }, 1000);
+        } else {
+            lives--;
+            updateLivesDisplay();
+
+            if (lives <= 0) {
+                gameOver();
+            } else {
+                cards[changedRow][changedCol].setImageResource(
+                        getResourceId("tile" + cardValues[changedRow][changedCol] + "_highlight")
+                );
+
+                handler.postDelayed(() -> {
+                    if (!isAdded()) return;
+                    setCardImage(changedRow, changedCol, "tile" + cardValues[changedRow][changedCol]);
+                    startNewRound();
+                }, 1000);
+            }
+        }
+    }
+
+    private void setCardImage(int row, int col, String imageName) {
+        cards[row][col].setImageResource(getResourceId(imageName));
+    }
+
+    private int getResourceId(String name) {
+        return getResources().getIdentifier(name, "drawable", requireContext().getPackageName());
+    }
+
+    private void setCardsClickable(boolean clickable) {
+        for (int i = 0; i < 2; i++) {
+            for (int j = 0; j < 2; j++) {
+                cards[i][j].setClickable(clickable);
+            }
+        }
+    }
+
+    private void updateLivesDisplay() {
+        StringBuilder hearts = new StringBuilder();
+        for (int i = 0; i < lives; i++) {
+            hearts.append("❤️");
+        }
+        livesTextView.setText(hearts.toString());
+    }
+
+    private void gameOver() {
+        isGameComplete = true;
+        new AlertDialog.Builder(requireContext())
+                .setTitle("Игра окончена")
+                .setMessage("Вы прошли " + (round - 1) + " раундов!")
+                .setPositiveButton("OK", (dialog, which) -> navigateHome())
+                .setCancelable(false)
+                .show();
+    }
+
+    private void showExitConfirmationDialog() {
+        new AlertDialog.Builder(requireContext())
+                .setTitle("Закончить упражнение?")
+                .setMessage("Вы точно хотите закончить упражнение?")
+                .setPositiveButton("Да", (dialog, which) -> {
+                    NavController navController = Navigation.findNavController(requireView());
+                    navController.popBackStack();
+                })
+                .setNegativeButton("Нет", null)
+                .show();
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        if (getActivity() != null && ((AppCompatActivity)getActivity()).getSupportActionBar() != null) {
+            ((AppCompatActivity)getActivity()).getSupportActionBar().hide();
+        }
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        if (getActivity() != null && ((AppCompatActivity)getActivity()).getSupportActionBar() != null) {
+            ((AppCompatActivity)getActivity()).getSupportActionBar().show();
+        }
+
+        if (getActivity() instanceof AppCompatActivity) {
+            ActionBar actionBar = ((AppCompatActivity) getActivity()).getSupportActionBar();
+            if (actionBar != null && previousTitle != null) {
+                actionBar.setTitle(previousTitle);
+            }
+        }
+    }
+
+    private void navigateHome() {
+        if (getView() == null) return;
+
+        NavController navController = Navigation.findNavController(requireView());
+        navController.popBackStack();
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        handler.removeCallbacksAndMessages(null);
+    }
+}

app/src/main/java/com/kolobochki/memory/ui/home/HomeFragment.java

@@ -31,6 +31,18 @@ public class HomeFragment extends Fragment {
             Navigation.findNavController(view).navigate(R.id.action_navigation_home_to_navigation_task1);
         });
 
+        binding.button2.setOnClickListener(view-> {
+            Navigation.findNavController(view).navigate(R.id.action_navigation_home_to_navigation_task2);
+        });
+
+        binding.button3.setOnClickListener(view -> {
+            Navigation.findNavController(view).navigate(R.id.action_navigation_home_to_navigation_task3);
+        });
+
+        binding.button4.setOnClickListener(view -> {
+            Navigation.findNavController(view).navigate(R.id.action_navigation_home_to_navigation_task4);
+        });
+
         return root;
     }
 

app/src/main/res/layout/fragment_home.xml

@@ -20,12 +20,78 @@
         android:id="@+id/button"
         android:layout_width="321dp"
         android:layout_height="63dp"
-        android:layout_marginStart="46dp"
-        android:layout_marginTop="268dp"
+        android:layout_marginStart="48dp"
+        android:layout_marginTop="140dp"
         android:text="Начать упражнение"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
+    <Button
+        android:id="@+id/button2"
+        android:layout_width="321dp"
+        android:layout_height="63dp"
+        android:layout_marginStart="48dp"
+        android:layout_marginTop="260dp"
+        android:text="Начать упражнение"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <Button
+        android:id="@+id/button3"
+        android:layout_width="321dp"
+        android:layout_height="63dp"
+        android:layout_marginStart="48dp"
+        android:layout_marginTop="372dp"
+        android:text="Начать упражнение"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <Button
+        android:id="@+id/button4"
+        android:layout_width="321dp"
+        android:layout_height="63dp"
+        android:layout_marginStart="48dp"
+        android:layout_marginTop="496dp"
+        android:text="Начать упражнение"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/textView5"
+        android:layout_width="248dp"
+        android:layout_height="29dp"
+        android:layout_marginStart="16dp"
+        android:layout_marginTop="224dp"
+        android:text="Саймон говорит"
+        android:textAlignment="center"
+        android:textSize="18sp"
+        app:layout_constraintStart_toEndOf="@+id/imageView3"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/textView6"
+        android:layout_width="248dp"
+        android:layout_height="29dp"
+        android:layout_marginStart="12dp"
+        android:layout_marginTop="344dp"
+        android:text="Числовая матрица"
+        android:textAlignment="center"
+        android:textSize="18sp"
+        app:layout_constraintStart_toEndOf="@+id/imageView3"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/textView7"
+        android:layout_width="248dp"
+        android:layout_height="29dp"
+        android:layout_marginStart="16dp"
+        android:layout_marginTop="464dp"
+        android:text="Найти лишнее"
+        android:textAlignment="center"
+        android:textSize="18sp"
+        app:layout_constraintStart_toEndOf="@+id/imageView3"
+        app:layout_constraintTop_toTopOf="parent" />
+
     <TextView
         android:id="@+id/textView4"
         android:layout_width="wrap_content"
@@ -37,4 +103,17 @@
         android:translationY="-7dp"
         app:layout_constraintStart_toEndOf="@+id/imageView3"
         app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/textView3"
+        android:layout_width="248dp"
+        android:layout_height="29dp"
+        android:layout_marginStart="12dp"
+        android:layout_marginTop="108dp"
+        android:text="Найти пары"
+        android:textAlignment="center"
+        android:textSize="18sp"
+        app:layout_constraintStart_toEndOf="@+id/imageView3"
+        app:layout_constraintTop_toTopOf="parent" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/fragment_task2.xml

@@ -0,0 +1,118 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@android:drawable/menuitem_background"
+    android:padding="16dp">
+
+    <TextView
+        android:id="@+id/roundText"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentTop="true"
+        android:layout_centerHorizontal="true"
+        android:text="Раунд: 1"
+        android:textSize="24sp" />
+
+    <TextView
+        android:id="@+id/livesText"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/roundText"
+        android:layout_centerHorizontal="true"
+        android:layout_marginTop="8dp"
+        android:text="❤️❤️❤️"
+        android:textSize="24sp" />
+
+    <ImageView
+        android:id="@+id/centerImage"
+        android:layout_width="300dp"
+        android:layout_height="300dp"
+        android:layout_centerInParent="true"
+        android:scaleType="fitXY"
+        android:src="@drawable/simon_off" />
+
+    <GridLayout
+        android:id="@+id/buttonsGrid"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_centerInParent="true"
+        android:columnCount="2"
+        android:rowCount="2">
+
+        <Button
+            android:id="@+id/redButton"
+            android:layout_width="0dp"
+            android:layout_height="150dp"
+            android:layout_rowWeight="1"
+            android:layout_columnWeight="1"
+            android:layout_margin="8dp"
+            android:background="@android:color/transparent"
+            android:backgroundTint="@null"
+            android:drawableTint="@null"
+            android:focusable="false"
+            android:focusableInTouchMode="false"
+            android:foregroundTint="@null"
+            android:stateListAnimator="@null"
+            app:iconTint="@null"
+            tools:visibility="invisible"
+            style="@style/SimonButton"/>
+
+        <Button
+            android:id="@+id/greenButton"
+            android:layout_width="0dp"
+            android:layout_height="150dp"
+            android:layout_rowWeight="1"
+            android:layout_columnWeight="1"
+            android:layout_margin="8dp"
+            android:background="@android:color/transparent"
+            android:backgroundTint="@null"
+            android:drawableTint="@null"
+            android:focusable="false"
+            android:focusableInTouchMode="false"
+            android:foregroundTint="@null"
+            android:stateListAnimator="@null"
+            app:iconTint="@null"
+            tools:visibility="invisible"
+            style="@style/SimonButton"/>
+
+        <Button
+            android:id="@+id/yellowButton"
+            android:layout_width="0dp"
+            android:layout_height="150dp"
+            android:layout_rowWeight="1"
+            android:layout_columnWeight="1"
+            android:layout_margin="8dp"
+            android:background="@android:color/transparent"
+            android:backgroundTint="@null"
+            android:drawableTint="@null"
+            android:focusable="false"
+            android:focusableInTouchMode="false"
+            android:foregroundTint="@null"
+            android:stateListAnimator="@null"
+            app:iconTint="@null"
+            tools:visibility="invisible"
+            style="@style/SimonButton"/>
+
+        <Button
+            android:id="@+id/blueButton"
+            android:layout_width="0dp"
+            android:layout_height="150dp"
+            android:layout_rowWeight="1"
+            android:layout_columnWeight="1"
+            android:layout_margin="8dp"
+            android:background="@android:color/transparent"
+            android:backgroundTint="@null"
+            android:drawableTint="@null"
+            android:focusable="false"
+            android:focusableInTouchMode="false"
+            android:foregroundTint="@null"
+            android:stateListAnimator="@null"
+            app:iconTint="@null"
+            tools:visibility="invisible"
+            style="@style/SimonButton"/>
+    </GridLayout>
+
+</RelativeLayout>

app/src/main/res/layout/fragment_task3.xml

@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:gravity="center"
+    android:padding="16dp">
+
+    <!-- Информационная панель -->
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center"
+        android:layout_marginBottom="24dp">
+
+        <TextView
+            android:id="@+id/roundTextView"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textSize="18sp"
+            android:text="Раунд: 1" />
+
+        <View
+            android:layout_width="0dp"
+            android:layout_height="1dp"
+            android:layout_weight="1"/>
+
+        <TextView
+            android:id="@+id/livesTextView"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textSize="18sp"
+            android:text="❤️❤️❤️"/>
+    </LinearLayout>
+
+    <!-- Контейнер для центрирования GridLayout -->
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:gravity="center">
+
+        <GridLayout
+            android:id="@+id/gridLayout"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:rowCount="3"
+            android:columnCount="3"
+            android:layout_gravity="center"
+            android:gravity="center"/>
+    </FrameLayout>
+</LinearLayout>

app/src/main/res/layout/fragment_task4.xml

@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:gravity="center"
+    android:padding="16dp">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:layout_marginBottom="16dp">
+
+        <TextView
+            android:id="@+id/round_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textSize="18sp"
+            android:text="Раунд: 1"/>
+
+        <TextView
+            android:id="@+id/lives_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="❤️❤️❤️"
+            android:textAlignment="textEnd"
+            android:textSize="18sp"
+            android:translationX="235dp" />
+    </LinearLayout>
+
+    <GridLayout
+        android:id="@+id/grid_layout"
+        android:layout_width="395dp"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:alignmentMode="alignBounds"
+        android:columnCount="2"
+        android:rowCount="2"
+        android:useDefaultMargins="true">
+
+        <ImageView
+            android:id="@+id/card00"
+            android:layout_width="183dp"
+            android:layout_height="196dp"
+            android:layout_margin="8dp"
+            android:scaleType="fitCenter" />
+
+        <ImageView
+            android:id="@+id/card01"
+            android:layout_width="183dp"
+            android:layout_height="196dp"
+            android:layout_margin="8dp"
+            android:scaleType="fitCenter" />
+
+        <ImageView
+            android:id="@+id/card10"
+            android:layout_width="183dp"
+            android:layout_height="196dp"
+            android:layout_margin="8dp"
+            android:scaleType="fitCenter" />
+
+        <ImageView
+            android:id="@+id/card11"
+            android:layout_width="183dp"
+            android:layout_height="196dp"
+            android:layout_margin="8dp"
+            android:scaleType="fitCenter" />
+    </GridLayout>
+</LinearLayout>

app/src/main/res/navigation/mobile_navigation.xml

@@ -16,6 +16,15 @@
         <action
             android:id="@+id/action_navigation_home_to_navigation_task1"
             app:destination="@id/navigation_task1" />
+        <action
+            android:id="@+id/action_navigation_home_to_navigation_task2"
+            app:destination="@id/navigation_task2" />
+        <action
+            android:id="@+id/action_navigation_home_to_navigation_task3"
+            app:destination="@id/navigation_task3" />
+        <action
+            android:id="@+id/action_navigation_home_to_navigation_task4"
+            app:destination="@id/navigation_task4" />
     </fragment>
 
     <fragment
@@ -37,4 +46,31 @@
             android:id="@+id/action_navigation_notifications_to_navigation_home"
             app:destination="@id/navigation_home" />
     </fragment>
+    <fragment
+        android:id="@+id/navigation_task2"
+        android:name="com.kolobochki.memory.fragment_task2"
+        android:label="navigation_task2"
+        tools:layout="@layout/fragment_task2">
+        <action
+            android:id="@+id/action_navigation_notifications_to_navigation_home"
+            app:destination="@id/navigation_home" />
+    </fragment>
+    <fragment
+        android:id="@+id/navigation_task3"
+        android:name="com.kolobochki.memory.fragment_task3"
+        android:label="navigation_task3"
+        tools:layout="@layout/fragment_task3">
+        <action
+            android:id="@+id/action_navigation_notifications_to_navigation_home"
+            app:destination="@id/navigation_home" />
+    </fragment>
+    <fragment
+        android:id="@+id/navigation_task4"
+        android:name="com.kolobochki.memory.fragment_task4"
+        android:label="navigation_task4"
+        tools:layout="@layout/fragment_task4">
+        <action
+            android:id="@+id/action_navigation_notifications_to_navigation_home"
+            app:destination="@id/navigation_home" />
+    </fragment>
 </navigation>

app/src/main/res/values-night/themes.xml

@@ -13,4 +13,8 @@
         <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
         <!-- Customize your theme here. -->
     </style>
+    <style name="SimonButton" parent="Widget.AppCompat.Button.Borderless">
+        <item name="android:background">@drawable/simon_off</item>
+        <item name="android:stateListAnimator">@null</item>
+    </style>
 </resources>

app/src/main/res/values/strings.xml

@@ -1,6 +1,6 @@
 <resources>
     <string name="app_name">Memory</string>
-    <string name="title_home">Карта</string>
+    <string name="title_home">Упражнения</string>
     <string name="title_dashboard">Профиль</string>
     <string name="title_notifications">Notifications</string>
     <!-- TODO: Remove or change this placeholder text -->

app/src/main/res/values/themes.xml

@@ -13,4 +13,8 @@
         <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
         <!-- Customize your theme here. -->
     </style>
+    <style name="SimonButton" parent="Widget.AppCompat.Button.Borderless">
+        <item name="android:background">@drawable/simon_off</item>
+        <item name="android:stateListAnimator">@null</item>
+    </style>
 </resources>