android

.gitignore

@@ -0,0 +1,37 @@
+#built application files
+*.apk
+*.ap_
+*.aab
+                           
+# files for the dex VM
+*.dex
+                            
+# Java class files
+*.class
+                            
+# generated files
+bin/
+gen/
+                            
+# Local configuration file (sdk path, etc)
+local.properties
+                        
+# Windows thumbnail db
+Thumbs.db
+                
+# OSX files
+.DS_Store
+                            
+# Android Studio
+*.iml
+.idea
+#.idea/workspace.xml - remove # and delete .idea if it better suit your needs.
+.gradle
+build/
+.navigation
+captures/
+output.json 
+    
+#NDK
+obj/
+.externalNativeBuild

lab1/.gitignore

@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

lab1/.kotlin/errors/errors-1749574013288.log

@@ -0,0 +1,4 @@
+kotlin version: 2.0.21
+error message: The daemon has terminated unexpectedly on startup attempt #1 with error code: 0. The daemon process output:
+    1. Kotlin compile daemon is ready
+

lab1/app/.gitignore

@@ -0,0 +1 @@
+/build

lab1/app/build.gradle.kts

@@ -0,0 +1,63 @@
+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.kotlin.android)
+    alias(libs.plugins.kotlin.compose)
+}
+
+android {
+    namespace = "com.example.lab1"
+    compileSdk = 35
+
+    defaultConfig {
+        applicationId = "com.example.lab1"
+        minSdk = 27
+        targetSdk = 35
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+    kotlinOptions {
+        jvmTarget = "11"
+    }
+    buildFeatures {
+        compose = true
+    }
+}
+
+dependencies {
+
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.lifecycle.runtime.ktx)
+    implementation(libs.androidx.activity.compose)
+    implementation(platform(libs.androidx.compose.bom))
+    implementation(libs.androidx.ui)
+    implementation(libs.androidx.ui.graphics)
+    implementation(libs.androidx.ui.tooling.preview)
+    implementation(libs.androidx.material3)
+    implementation(libs.androidx.appcompat)
+    implementation(libs.material)
+    implementation(libs.androidx.activity)
+    implementation(libs.androidx.constraintlayout)
+    testImplementation(libs.junit)
+    androidTestImplementation(libs.androidx.junit)
+    androidTestImplementation(libs.androidx.espresso.core)
+    androidTestImplementation(platform(libs.androidx.compose.bom))
+    androidTestImplementation(libs.androidx.ui.test.junit4)
+    debugImplementation(libs.androidx.ui.tooling)
+    debugImplementation(libs.androidx.ui.test.manifest)
+}

lab1/app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

lab1/app/src/androidTest/java/com/example/lab1/ExampleInstrumentedTest.kt

@@ -0,0 +1,24 @@
+package com.example.lab1
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.example.lab1", appContext.packageName)
+    }
+}

lab1/app/src/main/AndroidManifest.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Lab1"
+        tools:targetApi="31">
+        <activity
+            android:name=".GradesActivity"
+            android:exported="false"
+            android:parentActivityName=".MainActivity" />
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:label="@string/app_name"
+            android:theme="@style/Theme.Lab1">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

lab1/app/src/main/java/com/example/lab1/GradeAdapter.java

@@ -0,0 +1,75 @@
+package com.example.lab1;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.RadioButton;
+import android.widget.RadioGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.List;
+
+public class GradeAdapter extends RecyclerView.Adapter<GradeAdapter.GradeViewHolder> {
+    public static class GradeViewHolder extends RecyclerView.ViewHolder {
+        TextView tvSubject;
+        RadioGroup rgGrade;
+
+        GradeViewHolder(@NonNull View itemView) {
+            super(itemView);
+            tvSubject = itemView.findViewById(R.id.tvSubject);
+            rgGrade = itemView.findViewById(R.id.rgGrade);
+        }
+    }
+
+    private final List<Subject> subjects;
+    private final int[] gradeOptions = {2,3,4,5};
+
+    public GradeAdapter(List<Subject> subjects) {
+        this.subjects = subjects;
+    }
+
+    @NonNull
+    @Override
+    public GradeViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext())
+                .inflate(R.layout.grades_row, parent, false);
+        return new GradeViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull GradeViewHolder holder, int position) {
+        Subject item = subjects.get(position);
+        holder.tvSubject.setText(item.name);
+        holder.rgGrade.removeAllViews();
+
+        for (double grade : gradeOptions) {
+            RadioButton rb = new RadioButton(holder.itemView.getContext());
+            rb.setText(String.valueOf(grade));
+            rb.setId(View.generateViewId());
+            rb.setTag(grade);
+
+            rb.setChecked(item.grade == grade);
+
+            holder.rgGrade.addView(rb);
+        }
+
+        holder.rgGrade.setOnCheckedChangeListener((group, checkedId) -> {
+            RadioButton selected = group.findViewById(checkedId);
+            if (selected != null) {
+                item.grade = (double)selected.getTag();
+            }
+        });
+    }
+
+    @Override
+    public int getItemCount() {
+        return subjects.size();
+    }
+
+    public List<Subject> getGradeItems() {
+        return subjects;
+    }
+}

lab1/app/src/main/java/com/example/lab1/GradesActivity.java

@@ -0,0 +1,100 @@
+package com.example.lab1;
+
+import android.content.Intent;
+import android.os.Bundle;
+
+import androidx.activity.EdgeToEdge;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.graphics.Insets;
+import androidx.core.view.ViewCompat;
+import androidx.core.view.WindowInsetsCompat;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class GradesActivity extends AppCompatActivity {
+
+    private GradeAdapter gradeAdapter;
+    private List<Subject> subjects;
+    private RecyclerView recyclerView;
+
+    private static final String KEY_GRADES = "key_grades";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        EdgeToEdge.enable(this);
+        setContentView(R.layout.activity_grades);
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.mainGrades), (v, insets) -> {
+            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
+            return insets;
+        });
+
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+
+        subjects = new ArrayList<>();
+        var subjectArray = getResources().getStringArray(R.array.przedmioty);
+        var subjectCount = getIntent().getIntExtra("gradeCount", 5);
+        for (var i = 0; i < subjectCount; i++) {
+            subjects.add(new Subject(subjectArray[i]));
+        }
+
+        if (savedInstanceState != null && savedInstanceState.containsKey(KEY_GRADES)) {
+            double[] savedGrades = savedInstanceState.getDoubleArray(KEY_GRADES);
+            if (savedGrades != null) {
+                for (int i = 0; i < savedGrades.length && i < subjects.size(); i++) {
+                    subjects.get(i).grade = savedGrades[i];
+                }
+            }
+        }
+
+        recyclerView = findViewById(R.id.rvListaOcen);
+        recyclerView.setLayoutManager(new LinearLayoutManager(this));
+        gradeAdapter = new GradeAdapter(subjects);
+        recyclerView.setAdapter(gradeAdapter);
+
+        var calculateButton = findViewById(R.id.btOblicz);
+        calculateButton.setOnClickListener(v -> calculateAverage());
+    }
+
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        double[] savedGrades = new double[subjects.size()];
+        for (int i = 0; i < subjects.size(); i++) {
+            Double grade = subjects.get(i).grade;
+            savedGrades[i] = grade;
+        }
+        outState.putDoubleArray(KEY_GRADES, savedGrades);
+    }
+
+    @Override
+    public void onBackPressed() {
+        Intent resultIntent = new Intent();
+        setResult(RESULT_CANCELED, resultIntent);
+        super.onBackPressed();
+    }
+
+    @Override
+    public boolean onSupportNavigateUp() {
+        onBackPressed(); // ustawia wynik i kończy aktywność
+        return true;
+    }
+
+    private void calculateAverage() {
+        double sum = 0;
+        var items = gradeAdapter.getGradeItems();
+        for (Subject item : items) {
+            sum += item.grade;
+        }
+
+        double average = sum / items.size();
+        Intent resultIntent = new Intent();
+        resultIntent.putExtra("average", average);
+        setResult(RESULT_OK, resultIntent);
+        finish();
+    }
+}

lab1/app/src/main/java/com/example/lab1/MainActivity.java

@@ -0,0 +1,149 @@
+package com.example.lab1;
+
+import android.os.Bundle;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.View;
+import android.widget.*;
+import android.content.Intent;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+
+public class MainActivity extends AppCompatActivity {
+
+    final int GRADE_ACTIVITY_REQUEST_CODE = 2420;
+
+    EditText etImie, etNazwisko, etOceny;
+    Button btOceny;
+
+    boolean isNameValid = false, isSurnameValid = false, isGradeValid = false, isResults = false;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        etImie = findViewById(R.id.etImie);
+        etNazwisko = findViewById(R.id.etNazwisko);
+        etOceny = findViewById(R.id.etOceny);
+        btOceny = findViewById(R.id.btOceny);
+
+        setupValidation(etImie, getString(R.string.imie_invalid), (s) -> {
+            isNameValid = !s.trim().isEmpty();
+            return isNameValid;
+        });
+
+        setupValidation(etNazwisko, getString(R.string.nazwisko_invalid), (s) -> {
+            isSurnameValid = !s.trim().isEmpty();
+            return isSurnameValid;
+        });
+
+        setupValidation(etOceny, getString(R.string.oceny_invalid), (s) -> {
+            try {
+                int num = Integer.parseInt(s);
+                isGradeValid = num >= 5 && num <= 15;
+            } catch (NumberFormatException e) {
+                isGradeValid = false;
+            }
+            return isGradeValid;
+        });
+
+        btOceny.setOnClickListener(v -> {
+            Toast.makeText(this, getString(R.string.dane_poprawne), Toast.LENGTH_SHORT).show();
+
+            Intent intent = new Intent(MainActivity.this, GradesActivity.class);
+            intent.putExtra("gradeCount", Integer.parseInt(etOceny.getText().toString()));
+            startActivityForResult(intent, GRADE_ACTIVITY_REQUEST_CODE);
+        });
+    }
+
+    private void setupValidation(EditText editText, String errorMsg, Validator validator) {
+        editText.setOnFocusChangeListener((v, hasFocus) -> {
+            if (!hasFocus) {
+                String value = editText.getText().toString();
+                if (!validator.validate(value)) {
+                    editText.setError(errorMsg);
+                    Toast.makeText(this, errorMsg, Toast.LENGTH_SHORT).show();
+                }
+                updateButtonState();
+            }
+        });
+
+        editText.addTextChangedListener(new TextWatcher() {
+            public void afterTextChanged(Editable s) {
+                validator.validate(s.toString());
+                updateButtonState();
+            }
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
+            public void onTextChanged(CharSequence s, int start, int before, int count) {}
+        });
+    }
+
+    private void updateButtonState() {
+        var visibility = isNameValid && isSurnameValid && isGradeValid && !isResults
+                ? View.VISIBLE
+                : View.GONE;
+
+        btOceny.setVisibility(visibility);
+    }
+
+    @Override
+    protected void onSaveInstanceState(@NonNull Bundle outState) {
+        super.onSaveInstanceState(outState);
+        outState.putString("name", etImie.getText().toString());
+        outState.putString("surname", etNazwisko.getText().toString());
+        outState.putString("gradeCount", etOceny.getText().toString());
+    }
+
+    @Override
+    protected void onRestoreInstanceState(@NonNull Bundle savedInstanceState) {
+        super.onRestoreInstanceState(savedInstanceState);
+        etImie.setText(savedInstanceState.getString("name", ""));
+        etNazwisko.setText(savedInstanceState.getString("surname", ""));
+        etOceny.setText(savedInstanceState.getString("gradeCount", ""));
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+
+        if (requestCode == GRADE_ACTIVITY_REQUEST_CODE && resultCode == RESULT_OK) {
+            isResults = true;
+            updateButtonState();
+
+            var average = data.getDoubleExtra("average", 0.0);
+            showAverageResult(average);
+        }
+    }
+
+    private void showAverageResult(double average) {
+        TextView tvAverage = findViewById(R.id.tvAverage);
+        tvAverage.setText(String.format(getString(R.string.srednia_format), average));
+        tvAverage.setVisibility(View.VISIBLE);
+
+        var averageAboveThree = average >= 3.0;
+        Button btAverage = findViewById(R.id.btAverage);
+        if (averageAboveThree) {
+            btAverage.setText(R.string.superasnie);
+        } else {
+            btAverage.setText(R.string.nie_poszlo);
+        }
+
+        btAverage.setVisibility(View.VISIBLE);
+        btAverage.setOnClickListener(v -> {
+            String message;
+            if (averageAboveThree) {
+                message = getString(R.string.gratulacje_zaliczenie);
+            } else {
+                message = getString(R.string.zaliczenie_warunkowe);
+            }
+            Toast.makeText(this, message, Toast.LENGTH_LONG).show();
+            finish();
+        });
+    }
+
+    interface Validator {
+        boolean validate(String input);
+    }
+}

lab1/app/src/main/java/com/example/lab1/Subject.java

@@ -0,0 +1,10 @@
+package com.example.lab1;
+public class Subject {
+    public String name;
+    public Double grade;
+
+    public Subject(String subjectName) {
+        this.name = subjectName;
+        this.grade = 2.0;
+    }
+}

lab1/app/src/main/java/com/example/lab1/ui/theme/Color.kt

@@ -0,0 +1,11 @@
+package com.example.lab1.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+val Purple80 = Color(0xFFD0BCFF)
+val PurpleGrey80 = Color(0xFFCCC2DC)
+val Pink80 = Color(0xFFEFB8C8)
+
+val Purple40 = Color(0xFF6650a4)
+val PurpleGrey40 = Color(0xFF625b71)
+val Pink40 = Color(0xFF7D5260)

lab1/app/src/main/java/com/example/lab1/ui/theme/Theme.kt

@@ -0,0 +1,58 @@
+package com.example.lab1.ui.theme
+
+import android.app.Activity
+import android.os.Build
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.dynamicDarkColorScheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
+
+private val DarkColorScheme = darkColorScheme(
+    primary = Purple80,
+    secondary = PurpleGrey80,
+    tertiary = Pink80
+)
+
+private val LightColorScheme = lightColorScheme(
+    primary = Purple40,
+    secondary = PurpleGrey40,
+    tertiary = Pink40
+
+    /* Other default colors to override
+    background = Color(0xFFFFFBFE),
+    surface = Color(0xFFFFFBFE),
+    onPrimary = Color.White,
+    onSecondary = Color.White,
+    onTertiary = Color.White,
+    onBackground = Color(0xFF1C1B1F),
+    onSurface = Color(0xFF1C1B1F),
+    */
+)
+
+@Composable
+fun Lab1Theme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    // Dynamic color is available on Android 12+
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit
+) {
+    val colorScheme = when {
+        dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
+            val context = LocalContext.current
+            if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
+        }
+
+        darkTheme -> DarkColorScheme
+        else -> LightColorScheme
+    }
+
+    MaterialTheme(
+        colorScheme = colorScheme,
+        typography = Typography,
+        content = content
+    )
+}

lab1/app/src/main/java/com/example/lab1/ui/theme/Type.kt

@@ -0,0 +1,34 @@
+package com.example.lab1.ui.theme
+
+import androidx.compose.material3.Typography
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
+
+// Set of Material typography styles to start with
+val Typography = Typography(
+    bodyLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 16.sp,
+        lineHeight = 24.sp,
+        letterSpacing = 0.5.sp
+    )
+    /* Other default text styles to override
+    titleLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 22.sp,
+        lineHeight = 28.sp,
+        letterSpacing = 0.sp
+    ),
+    labelSmall = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 11.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp
+    )
+    */
+)

lab1/app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

lab1/app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>

lab1/app/src/main/res/layout/activity_grades.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+    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:fitsSystemWindows="true"
+    tools:context=".GradesActivity"
+    android:id="@+id/mainGrades">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/rvListaOcen"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintBottom_toTopOf="@id/btOblicz"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent" />
+
+    <Button
+        android:id="@+id/btOblicz"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/oblicz_srednia"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_margin="8dp" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

lab1/app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,119 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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:id="@+id/main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity"
+    android:padding="10dp">
+
+    <TextView
+        android:id="@+id/tvImie"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/imie"
+        android:paddingStart="10dp"
+        android:paddingEnd="10dp"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        android:layout_marginTop="100dp"/>
+
+    <EditText
+        android:id="@+id/etImie"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:hint="@string/imie_hint"
+        android:inputType="textPersonName"
+        android:paddingStart="10dp"
+        android:paddingEnd="10dp"
+        app:layout_constraintTop_toTopOf="@+id/tvImie"
+        app:layout_constraintBottom_toBottomOf="@+id/tvImie"
+        app:layout_constraintStart_toEndOf="@+id/tvImie"
+        app:layout_constraintEnd_toEndOf="parent"/>
+
+    <TextView
+        android:id="@+id/tvNazwisko"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/nazwisko"
+        android:paddingStart="10dp"
+        android:paddingEnd="10dp"
+        app:layout_constraintTop_toBottomOf="@+id/tvImie"
+        app:layout_constraintStart_toStartOf="parent"
+        android:layout_marginTop="10dp"/>
+
+    <EditText
+        android:id="@+id/etNazwisko"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:hint="@string/nazwisko_hint"
+        android:inputType="textPersonName"
+        android:paddingStart="10dp"
+        android:paddingEnd="10dp"
+        app:layout_constraintTop_toTopOf="@+id/tvNazwisko"
+        app:layout_constraintBottom_toBottomOf="@+id/tvNazwisko"
+        app:layout_constraintStart_toEndOf="@+id/tvNazwisko"
+        app:layout_constraintEnd_toEndOf="parent"/>
+
+    <TextView
+        android:id="@+id/tvOceny"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/oceny"
+        android:paddingStart="10dp"
+        android:paddingEnd="10dp"
+        app:layout_constraintTop_toBottomOf="@+id/tvNazwisko"
+        app:layout_constraintStart_toStartOf="parent"
+        android:layout_marginTop="10dp"/>
+
+    <EditText
+        android:id="@+id/etOceny"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:hint="@string/oceny_hint"
+        android:inputType="number"
+        android:paddingStart="10dp"
+        android:paddingEnd="10dp"
+        app:layout_constraintTop_toTopOf="@+id/tvOceny"
+        app:layout_constraintBottom_toBottomOf="@+id/tvOceny"
+        app:layout_constraintStart_toEndOf="@+id/tvOceny"
+        app:layout_constraintEnd_toEndOf="parent"/>
+
+    <TextView
+        android:id="@+id/tvAverage"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/oceny"
+        android:paddingStart="10dp"
+        android:paddingEnd="10dp"
+        app:layout_constraintTop_toBottomOf="@+id/btAverage"
+        app:layout_constraintStart_toStartOf="parent"
+        android:layout_marginTop="10dp"
+        android:visibility="gone"/>
+
+    <Button
+        android:id="@+id/btOceny"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:text="@string/oceny_button"
+        android:visibility="gone"
+        app:layout_constraintTop_toBottomOf="@+id/etOceny"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginTop="10dp"/>
+
+    <Button
+        android:id="@+id/btAverage"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:text="@string/oceny_button"
+        android:visibility="gone"
+        app:layout_constraintTop_toBottomOf="@+id/etOceny"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_marginTop="10dp"/>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

lab1/app/src/main/res/layout/grades_row.xml

@@ -0,0 +1,22 @@
+<?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="wrap_content"
+    android:orientation="vertical"
+    android:padding="12dp">
+
+    <TextView
+        android:id="@+id/tvSubject"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/przedmiot"
+        android:textSize="16sp"
+        android:textStyle="bold" />
+
+    <RadioGroup
+        android:id="@+id/rgGrade"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:layout_marginTop="4dp" />
+</LinearLayout>

lab1/app/src/main/res/mipmap-anydpi/ic_launcher.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

lab1/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

lab1/app/src/main/res/values/colors.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>

lab1/app/src/main/res/values/strings.xml

@@ -0,0 +1,40 @@
+<resources>
+    <string name="app_name">lab1</string>
+    <string name="imie">Imię:</string>
+    <string name="imie_invalid">Imię nie może być puste</string>
+    <string name="imie_hint">Podaj swoje imię</string>
+    <string name="komunikat">Wpisz poprawne dane</string>
+    <string name="nazwisko">Nazwisko:</string>
+    <string name="nazwisko_invalid">Nazwisko nie może być puste</string>
+    <string name="nazwisko_hint">Podaj swoje nazwisko</string>
+    <string name="oceny">Liczba ocen:</string>
+    <string name="oceny_hint">Wpisz liczbę ocen (5–15)</string>
+    <string name="oceny_invalid">Liczba ocen musi być z przedziału 5 do 15</string>
+    <string name="dane_poprawne">Dane poprawne</string>
+    <string name="oceny_button">OCENY</string>
+    <string name="oblicz_srednia">Oblicz srednia</string>
+    <string-array name="przedmioty">
+        <item>Matematyka</item>
+        <item>Fizyka</item>
+        <item>Chemia</item>
+        <item>Biologia</item>
+        <item>Historia</item>
+        <item>Geografia</item>
+        <item>Informatyka</item>
+        <item>Język polski</item>
+        <item>Język angielski</item>
+        <item>Wiedza o społeczeństwie</item>
+        <item>Religia</item>
+        <item>Wychowanie fizyczne</item>
+        <item>Muzyka</item>
+        <item>Plastyka</item>
+        <item>Technika</item>
+    </string-array>
+    <string name="przedmiot">Przedmiot</string>
+    <string name="superasnie">Super :)</string>
+    <string name="nie_poszlo">Tym razem mi nie poszło</string>
+    <string name="gratulacje_zaliczenie">Gratulacje! Otrzymujesz zaliczenie!</string>
+    <string name="zaliczenie_warunkowe">Wysyłam podanie o zaliczenie warunkowe</string>
+    <string name="srednia_format">Twoja średnia to %.2f</string>
+    <string name="przynajmniej_jedna">Wprowadź przynajmniej jedną ocenę</string>
+</resources>

lab1/app/src/main/res/values/themes.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="Theme.Lab1" parent="Theme.MaterialComponents.DayNight.DarkActionBar" />
+</resources>

lab1/app/src/main/res/xml/backup_rules.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older than API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>

lab1/app/src/main/res/xml/data_extraction_rules.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>

lab1/app/src/test/java/com/example/lab1/ExampleUnitTest.kt

@@ -0,0 +1,17 @@
+package com.example.lab1
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}

lab1/build.gradle.kts

@@ -0,0 +1,6 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+    alias(libs.plugins.android.application) apply false
+    alias(libs.plugins.kotlin.android) apply false
+    alias(libs.plugins.kotlin.compose) apply false
+}

lab1/gradle.properties

@@ -0,0 +1,23 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. For more details, visit
+# https://developer.android.com/r/tools/gradle-multi-project-decoupled-projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true

lab1/gradle/libs.versions.toml

@@ -0,0 +1,40 @@
+[versions]
+agp = "8.10.1"
+kotlin = "2.0.21"
+coreKtx = "1.10.1"
+junit = "4.13.2"
+junitVersion = "1.2.1"
+espressoCore = "3.6.1"
+lifecycleRuntimeKtx = "2.9.1"
+activityCompose = "1.10.1"
+composeBom = "2024.09.00"
+appcompat = "1.7.1"
+material = "1.12.0"
+activity = "1.10.1"
+constraintlayout = "2.1.4"
+
+[libraries]
+androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
+junit = { group = "junit", name = "junit", version.ref = "junit" }
+androidx-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
+androidx-espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }
+androidx-lifecycle-runtime-ktx = { group = "androidx.lifecycle", name = "lifecycle-runtime-ktx", version.ref = "lifecycleRuntimeKtx" }
+androidx-activity-compose = { group = "androidx.activity", name = "activity-compose", version.ref = "activityCompose" }
+androidx-compose-bom = { group = "androidx.compose", name = "compose-bom", version.ref = "composeBom" }
+androidx-ui = { group = "androidx.compose.ui", name = "ui" }
+androidx-ui-graphics = { group = "androidx.compose.ui", name = "ui-graphics" }
+androidx-ui-tooling = { group = "androidx.compose.ui", name = "ui-tooling" }
+androidx-ui-tooling-preview = { group = "androidx.compose.ui", name = "ui-tooling-preview" }
+androidx-ui-test-manifest = { group = "androidx.compose.ui", name = "ui-test-manifest" }
+androidx-ui-test-junit4 = { group = "androidx.compose.ui", name = "ui-test-junit4" }
+androidx-material3 = { group = "androidx.compose.material3", name = "material3" }
+androidx-appcompat = { group = "androidx.appcompat", name = "appcompat", version.ref = "appcompat" }
+material = { group = "com.google.android.material", name = "material", version.ref = "material" }
+androidx-activity = { group = "androidx.activity", name = "activity", version.ref = "activity" }
+androidx-constraintlayout = { group = "androidx.constraintlayout", name = "constraintlayout", version.ref = "constraintlayout" }
+
+[plugins]
+android-application = { id = "com.android.application", version.ref = "agp" }
+kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
+kotlin-compose = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
+

lab1/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Tue Jun 10 18:41:08 CEST 2025
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

lab1/gradlew

@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"

lab1/gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

lab1/settings.gradle.kts

@@ -0,0 +1,23 @@
+pluginManagement {
+    repositories {
+        google {
+            content {
+                includeGroupByRegex("com\\.android.*")
+                includeGroupByRegex("com\\.google.*")
+                includeGroupByRegex("androidx.*")
+            }
+        }
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "lab1"
+include(":app")

lab2/.gitignore

@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

lab2/app/.gitignore

@@ -0,0 +1 @@
+/build

lab2/app/build.gradle.kts

@@ -0,0 +1,56 @@
+plugins {
+    alias(libs.plugins.android.application)
+}
+
+android {
+    namespace = "com.example.lab2"
+    compileSdk = 35
+
+    defaultConfig {
+        applicationId = "com.example.lab2"
+        minSdk = 27
+        targetSdk = 35
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+}
+
+dependencies {
+    implementation(libs.appcompat)
+    implementation(libs.material)
+    implementation(libs.activity)
+    implementation(libs.constraintlayout)
+
+    // Room
+    implementation("androidx.room:room-runtime:2.6.1")
+    testImplementation("androidx.room:room-testing:2.6.1")
+    annotationProcessor("androidx.room:room-compiler:2.6.1")
+
+
+    // Lifecycle
+    implementation("androidx.lifecycle:lifecycle-viewmodel-ktx:2.7.0")
+    implementation("androidx.lifecycle:lifecycle-livedata-ktx:2.7.0")
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.7.0")
+
+    // Testy
+    testImplementation(libs.junit)
+    androidTestImplementation(libs.ext.junit)
+    androidTestImplementation(libs.espresso.core)
+}

lab2/app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

lab2/app/src/androidTest/java/com/example/lab2/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.example.lab2;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.example.lab2", appContext.getPackageName());
+    }
+}

lab2/app/src/main/AndroidManifest.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Lab2"
+        tools:targetApi="31">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

lab2/app/src/main/java/com/example/lab2/AddPhoneActivity.java

@@ -0,0 +1,56 @@
+package com.example.lab2;
+
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+public class AddPhoneActivity extends AppCompatActivity {
+
+    private EditText manufacturerInput;
+    private EditText modelInput;
+    private EditText androidVersionInput;
+    private EditText websiteInput;
+    private Button saveButton;
+    private Button cancelButton;
+    private Button websiteButton;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_add_phone);
+
+        manufacturerInput = findViewById(R.id.editManufacturer);
+        modelInput = findViewById(R.id.editModel);
+        androidVersionInput = findViewById(R.id.editAndroidVersion);
+        websiteInput = findViewById(R.id.editWebsite);
+        saveButton = findViewById(R.id.buttonSave);
+        cancelButton = findViewById(R.id.buttonCancel);
+        websiteButton = findViewById(R.id.buttonWebsite);
+
+        websiteButton.setOnClickListener(view -> {
+            String url = websiteInput.getText().toString();
+            if (!url.startsWith("http")) {
+                url = "http://" + url;
+            }
+            Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
+            startActivity(browserIntent);
+        });
+
+        cancelButton.setOnClickListener(view -> finish());
+
+        saveButton.setOnClickListener(view -> {
+            Intent resultIntent = new Intent();
+            resultIntent.putExtra("manufacturer", manufacturerInput.getText().toString());
+            resultIntent.putExtra("model", modelInput.getText().toString());
+            resultIntent.putExtra("androidVersion", androidVersionInput.getText().toString());
+            resultIntent.putExtra("website", websiteInput.getText().toString());
+            setResult(RESULT_OK, resultIntent);
+            finish();
+        });
+    }
+}

lab2/app/src/main/java/com/example/lab2/MainActivity.java

@@ -0,0 +1,48 @@
+package com.example.lab2;
+
+import android.os.Bundle;
+import android.view.Menu;
+import android.view.MenuItem;
+
+import androidx.activity.EdgeToEdge;
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.graphics.Insets;
+import androidx.core.view.ViewCompat;
+import androidx.core.view.WindowInsetsCompat;
+import androidx.lifecycle.ViewModelProvider;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+public class MainActivity extends AppCompatActivity {
+    private PhoneViewModel mPhoneViewModel;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        RecyclerView recyclerView = findViewById(R.id.recyclerView);
+        PhoneListAdapter adapter = new PhoneListAdapter(this);
+        recyclerView.setAdapter(adapter);
+        recyclerView.setLayoutManager(new LinearLayoutManager(this));
+
+        mPhoneViewModel = new ViewModelProvider(this).get(PhoneViewModel.class);
+        mPhoneViewModel.getAllPhones().observe(this, adapter::setPhones);
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.main_menu, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(@NonNull MenuItem item) {
+        if (item.getItemId() == R.id.clear_data) {
+            mPhoneViewModel.deleteAll();
+            return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+}

lab2/app/src/main/java/com/example/lab2/Phone.java

@@ -0,0 +1,25 @@
+package com.example.lab2;
+
+import androidx.annotation.NonNull;
+import androidx.room.Entity;
+import androidx.room.PrimaryKey;
+
+@Entity(tableName = "phones")
+public class Phone {
+    @PrimaryKey(autoGenerate = true)
+    public int id;
+
+    @NonNull
+    public String producer;
+    @NonNull
+    public String model;
+    public String version;
+    public String website;
+
+    public Phone(@NonNull String producer, @NonNull String model, String version, String website) {
+        this.producer = producer;
+        this.model = model;
+        this.version = version;
+        this.website = website;
+    }
+}

lab2/app/src/main/java/com/example/lab2/PhoneDao.java

@@ -0,0 +1,21 @@
+package com.example.lab2;
+
+import androidx.lifecycle.LiveData;
+import androidx.room.Dao;
+import androidx.room.Insert;
+import androidx.room.OnConflictStrategy;
+import androidx.room.Query;
+
+import java.util.List;
+
+@Dao
+public interface PhoneDao {
+    @Insert(onConflict = OnConflictStrategy.IGNORE)
+    void insert(Phone phone);
+
+    @Query("DELETE FROM phones")
+    void deleteAll();
+
+    @Query("SELECT * FROM phones ORDER BY producer ASC")
+    LiveData<List<Phone>> getAllPhones();
+}

lab2/app/src/main/java/com/example/lab2/PhoneDatabase.java

@@ -0,0 +1,56 @@
+package com.example.lab2;
+
+import android.content.Context;
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.room.Database;
+import androidx.room.Room;
+import androidx.room.RoomDatabase;
+import androidx.sqlite.db.SupportSQLiteDatabase;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+@Database(entities = {Phone.class}, version = 1, exportSchema = false)
+public abstract class PhoneDatabase extends RoomDatabase {
+    public abstract PhoneDao phoneDao();
+
+    private static volatile PhoneDatabase INSTANCE;
+    private static final int NUMBER_OF_THREADS = 4;
+    static final ExecutorService databaseWriteExecutor =
+            Executors.newFixedThreadPool(NUMBER_OF_THREADS);
+
+    public static PhoneDatabase getDatabase(final Context context) {
+        if (INSTANCE == null) {
+            synchronized (PhoneDatabase.class) {
+                if (INSTANCE == null) {
+                    context.deleteDatabase("phone_database");
+                    Log.i("tag", "deleted db");
+                    INSTANCE = Room.databaseBuilder(context.getApplicationContext(),
+                                    PhoneDatabase.class, "phone_database")
+                            .addCallback(sRoomDatabaseCallback)
+                            .fallbackToDestructiveMigration()
+                            .build();
+                }
+            }
+        }
+        return INSTANCE;
+    }
+
+    private static final RoomDatabase.Callback sRoomDatabaseCallback =
+            new RoomDatabase.Callback() {
+                @Override
+                public void onCreate(@NonNull SupportSQLiteDatabase db) {
+                    super.onCreate(db);
+                    databaseWriteExecutor.execute(() -> {
+                        PhoneDao dao = INSTANCE.phoneDao();
+                        dao.deleteAll();
+                        dao.insert(new Phone("Google", "Pixel 4", "11", "https://google.com"));
+                        dao.insert(new Phone("Samsung", "Galaxy S21", "12", "https://samsung.com"));
+                    });
+                    Log.i("", "remake");
+                }
+            };
+}
+

lab2/app/src/main/java/com/example/lab2/PhoneListAdapter.java

@@ -0,0 +1,56 @@
+package com.example.lab2;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class PhoneListAdapter extends RecyclerView.Adapter<PhoneListAdapter.PhoneViewHolder> {
+    private List<Phone> mPhones = new ArrayList<>();
+    private final LayoutInflater mInflater;
+
+    public PhoneListAdapter(Context context) {
+        mInflater = LayoutInflater.from(context);
+    }
+
+    static class PhoneViewHolder extends RecyclerView.ViewHolder {
+        private final TextView phoneItemView;
+
+        public PhoneViewHolder(View itemView) {
+            super(itemView);
+            phoneItemView = itemView.findViewById(R.id.textView);
+        }
+
+        public void bind(String text) {
+            phoneItemView.setText(text);
+        }
+    }
+
+    @Override
+    public PhoneViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View itemView = mInflater.inflate(R.layout.phone_list_item, parent, false);
+        return new PhoneViewHolder(itemView);
+    }
+
+    @Override
+    public void onBindViewHolder(PhoneViewHolder holder, int position) {
+        Phone current = mPhones.get(position);
+        holder.bind(current.producer + " " + current.model);
+    }
+
+    @Override
+    public int getItemCount() {
+        return mPhones.size();
+    }
+
+    public void setPhones(List<Phone> phones) {
+        mPhones = phones;
+        notifyDataSetChanged();
+    }
+}

lab2/app/src/main/java/com/example/lab2/PhoneRepository.java

@@ -0,0 +1,26 @@
+package com.example.lab2;
+
+import android.app.Application;
+
+import androidx.lifecycle.LiveData;
+
+import java.util.List;
+
+public class PhoneRepository {
+    private final PhoneDao mPhoneDao;
+    private final LiveData<List<Phone>> mAllPhones;
+
+    public PhoneRepository(Application application) {
+        PhoneDatabase db = PhoneDatabase.getDatabase(application);
+        mPhoneDao = db.phoneDao();
+        mAllPhones = mPhoneDao.getAllPhones();
+    }
+
+    public LiveData<List<Phone>> getAllPhones() {
+        return mAllPhones;
+    }
+
+    public void deleteAll() {
+        PhoneDatabase.databaseWriteExecutor.execute(mPhoneDao::deleteAll);
+    }
+}

lab2/app/src/main/java/com/example/lab2/PhoneViewModel.java

@@ -0,0 +1,28 @@
+package com.example.lab2;
+
+import android.app.Application;
+
+import androidx.annotation.NonNull;
+import androidx.lifecycle.AndroidViewModel;
+import androidx.lifecycle.LiveData;
+
+import java.util.List;
+
+public class PhoneViewModel extends AndroidViewModel {
+    private final PhoneRepository mRepository;
+    private final LiveData<List<Phone>> mAllPhones;
+
+    public PhoneViewModel(@NonNull Application application) {
+        super(application);
+        mRepository = new PhoneRepository(application);
+        mAllPhones = mRepository.getAllPhones();
+    }
+
+    public LiveData<List<Phone>> getAllPhones() {
+        return mAllPhones;
+    }
+
+    public void deleteAll() {
+        mRepository.deleteAll();
+    }
+}

lab2/app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

lab2/app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>

lab2/app/src/main/res/layout/activity_add_phone.xml

@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="16dp">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <EditText
+            android:id="@+id/editManufacturer"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="Manufacturer"
+            android:inputType="textPersonName" />
+
+        <EditText
+            android:id="@+id/editModel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="Model"
+            android:inputType="textPersonName" />
+
+        <EditText
+            android:id="@+id/editAndroidVersion"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="Android version"
+            android:inputType="number" />
+
+        <EditText
+            android:id="@+id/editWebsite"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="Web site"
+            android:inputType="textUri" />
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            android:gravity="center"
+            android:layout_marginTop="16dp"
+            android:weightSum="3">
+
+            <Button
+                android:id="@+id/buttonWebsite"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="WEB SITE" />
+
+            <Button
+                android:id="@+id/buttonCancel"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="CANCEL" />
+
+            <Button
+                android:id="@+id/buttonSave"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="SAVE" />
+        </LinearLayout>
+    </LinearLayout>
+</ScrollView>

lab2/app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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:id="@+id/main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity"
+    android:fitsSystemWindows="true">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recyclerView"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"/>
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>

lab2/app/src/main/res/layout/phone_list_item.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/textView"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:padding="12dp"
+    android:textSize="18sp" />

lab2/app/src/main/res/menu/main_menu.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/clear_data"
+        android:title="@string/wyczy_dane"
+        app:showAsAction="ifRoom" />
+</menu>

lab2/app/src/main/res/mipmap-anydpi/ic_launcher.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

lab2/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

lab2/app/src/main/res/values-night/themes.xml

@@ -0,0 +1,7 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Base.Theme.Lab2" parent="Theme.Material3.DayNight.NoActionBar">
+        <!-- Customize your dark theme here. -->
+        <!-- <item name="colorPrimary">@color/my_dark_primary</item> -->
+    </style>
+</resources>

lab2/app/src/main/res/values/colors.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>

lab2/app/src/main/res/values/strings.xml

@@ -0,0 +1,4 @@
+<resources>
+    <string name="app_name">lab2</string>
+    <string name="wyczy_dane">Wyczyść dane</string>
+</resources>

lab2/app/src/main/res/values/themes.xml

@@ -0,0 +1,9 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Base.Theme.Lab2" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Customize your light theme here. -->
+        <!-- <item name="colorPrimary">@color/my_light_primary</item> -->
+    </style>
+
+    <style name="Theme.Lab2" parent="Base.Theme.Lab2" />
+</resources>

lab2/app/src/main/res/xml/backup_rules.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older than API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>

lab2/app/src/main/res/xml/data_extraction_rules.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>

lab2/app/src/test/java/com/example/lab2/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package com.example.lab2;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}

lab2/build.gradle.kts

@@ -0,0 +1,3 @@
+plugins {
+    alias(libs.plugins.android.application) apply false
+}

lab2/gradle.properties

@@ -0,0 +1,21 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. For more details, visit
+# https://developer.android.com/r/tools/gradle-multi-project-decoupled-projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true

lab2/gradle/libs.versions.toml

@@ -0,0 +1,21 @@
+[versions]
+agp = "8.10.1"
+junit = "4.13.2"
+junitVersion = "1.2.1"
+espressoCore = "3.6.1"
+appcompat = "1.7.1"
+material = "1.12.0"
+activity = "1.10.1"
+constraintlayout = "2.2.1"
+
+[libraries]
+junit = { group = "junit", name = "junit", version.ref = "junit" }
+ext-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
+espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }
+appcompat = { group = "androidx.appcompat", name = "appcompat", version.ref = "appcompat" }
+material = { group = "com.google.android.material", name = "material", version.ref = "material" }
+activity = { group = "androidx.activity", name = "activity", version.ref = "activity" }
+constraintlayout = { group = "androidx.constraintlayout", name = "constraintlayout", version.ref = "constraintlayout" }
+
+[plugins]
+android-application = { id = "com.android.application", version = "8.4.0" }

lab2/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Tue Jun 10 21:13:26 CEST 2025
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

lab2/gradlew

@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"

lab2/gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

lab2/settings.gradle.kts

@@ -0,0 +1,24 @@
+pluginManagement {
+    repositories {
+        google {
+            content {
+                includeGroupByRegex("com\\.android.*")
+                includeGroupByRegex("com\\.google.*")
+                includeGroupByRegex("androidx.*")
+            }
+        }
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "lab2"
+include(":app")
+ 

lab3/.gitignore

@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

lab3/app/.gitignore

@@ -0,0 +1 @@
+/build

lab3/app/build.gradle.kts

@@ -0,0 +1,43 @@
+plugins {
+    alias(libs.plugins.android.application)
+}
+
+android {
+    namespace = "com.example.lab3"
+    compileSdk = 35
+
+    defaultConfig {
+        applicationId = "com.example.lab3"
+        minSdk = 27
+        targetSdk = 35
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+}
+
+dependencies {
+
+    implementation(libs.appcompat)
+    implementation(libs.material)
+    implementation(libs.activity)
+    implementation(libs.constraintlayout)
+    testImplementation(libs.junit)
+    androidTestImplementation(libs.ext.junit)
+    androidTestImplementation(libs.espresso.core)
+}

lab3/app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

lab3/app/src/androidTest/java/com/example/lab3/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.example.lab3;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.example.lab3", appContext.getPackageName());
+    }
+}

lab3/app/src/main/AndroidManifest.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Lab3"
+        tools:targetApi="31">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <service
+            android:name=".DownloadService"
+            android:exported="false"
+            android:permission="android.permission.FOREGROUND_SERVICE"/>
+    </application>
+
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="32" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+</manifest>

lab3/app/src/main/java/com/example/lab3/DownloadService.java

@@ -0,0 +1,160 @@
+package com.example.lab3;
+
+import android.app.*;
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
+import androidx.core.app.NotificationCompat;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
+
+import java.io.*;
+import java.net.URL;
+
+import javax.net.ssl.HttpsURLConnection;
+
+public class DownloadService extends IntentService {
+    private static final String TAG = "DownloadService";
+
+    private static final String ACTION_DOWNLOAD = "com.example.lab3.action.download_file";
+    private static final String URL_KEY = "url";
+
+    public static final String BROADCAST_PROGRESS = "com.example.lab3.broadcast.download_progress";
+    public static final String PROGRESS_KEY = "progressInfo";
+
+    private static final int NOTIFICATION_ID = 1;
+    private static final String CHANNEL_ID = "download_channel";
+    private static final int BUFFER_SIZE = 4096;
+
+    private NotificationManager notificationManager;
+    private ProgressInfo progressInfo;
+
+    public DownloadService() {
+        super("DownloadService");
+    }
+
+    public static void startDownload(Context context, String url) {
+        Intent intent = new Intent(context, DownloadService.class);
+        intent.setAction(ACTION_DOWNLOAD);
+        intent.putExtra(URL_KEY, url);
+        context.startService(intent);
+    }
+
+    @Override
+    protected void onHandleIntent(Intent intent) {
+        if (intent == null) return;
+
+        if (ACTION_DOWNLOAD.equals(intent.getAction())) {
+            String url = intent.getStringExtra(URL_KEY);
+            if (url != null) {
+                initService();
+                startForeground(NOTIFICATION_ID, buildNotification());
+                downloadFile(url);
+            }
+        }
+    }
+
+    private void initService() {
+        progressInfo = new ProgressInfo();
+        notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
+        createNotificationChannel();
+    }
+
+    private void createNotificationChannel() {
+        NotificationChannel channel = new NotificationChannel(
+                CHANNEL_ID,
+                getString(R.string.app_name),
+                NotificationManager.IMPORTANCE_LOW
+        );
+        notificationManager.createNotificationChannel(channel);
+    }
+
+    private Notification buildNotification() {
+        Intent intent = new Intent(this, MainActivity.class);
+        PendingIntent pendingIntent = TaskStackBuilder.create(this)
+                .addNextIntentWithParentStack(intent)
+                .getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE);
+
+        NotificationCompat.Builder builder = new NotificationCompat.Builder(this, CHANNEL_ID)
+                .setContentTitle(getString(R.string.app_name))
+                .setSmallIcon(android.R.drawable.ic_menu_save)
+                .setContentIntent(pendingIntent)
+                .setOngoing(true)
+                .setChannelId(CHANNEL_ID);
+
+        if (progressInfo.fileSize > 0) {
+            int progress = (int) (progressInfo.downloadedBytes * 100 / progressInfo.fileSize);
+            builder.setProgress(100, progress, false)
+                    .setContentText(progress + "%");
+        } else {
+            builder.setProgress(0, 0, true)
+                    .setContentText(getString(R.string.powiadomienie_pobieranie));
+        }
+
+        return builder.build();
+    }
+
+    private void downloadFile(String urlString) {
+        HttpsURLConnection connection = null;
+        DataInputStream input = null;
+        FileOutputStream output = null;
+
+        try {
+            URL url = new URL(urlString);
+            File outputFile = new File(getExternalFilesDir(null), new File(url.getFile()).getName());
+
+            if (outputFile.exists()) outputFile.delete();
+
+            connection = (HttpsURLConnection) url.openConnection();
+            connection.setRequestMethod("GET");
+            connection.connect();
+
+            progressInfo.fileSize = connection.getContentLength();
+
+            input = new DataInputStream(connection.getInputStream());
+            output = new FileOutputStream(outputFile);
+
+            byte[] buffer = new byte[BUFFER_SIZE];
+            int bytesRead;
+
+            while ((bytesRead = input.read(buffer)) != -1) {
+                output.write(buffer, 0, bytesRead);
+                progressInfo.downloadedBytes += bytesRead;
+
+                updateNotification();
+                broadcastProgress();
+                Log.d(TAG, "Pobrano " + progressInfo.downloadedBytes + " z " + progressInfo.fileSize);
+            }
+
+            progressInfo.status = ProgressInfo.STATUS_COMPLETED;
+            Log.d(TAG, "Pobrano plik: " + outputFile.getPath());
+
+        } catch (Exception e) {
+            progressInfo.status = ProgressInfo.STATUS_ERROR;
+            Log.e(TAG, "Błąd podczas pobierania pliku", e);
+        } finally {
+            broadcastProgress();
+            closeQuietly(input);
+            closeQuietly(output);
+            if (connection != null) connection.disconnect();
+        }
+    }
+
+    private void updateNotification() {
+        notificationManager.notify(NOTIFICATION_ID, buildNotification());
+    }
+
+    private void broadcastProgress() {
+        Intent intent = new Intent(BROADCAST_PROGRESS);
+        intent.putExtra(PROGRESS_KEY, progressInfo);
+        LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
+    }
+
+    private void closeQuietly(Closeable stream) {
+        try {
+            if (stream != null) stream.close();
+        } catch (IOException e) {
+            Log.e(TAG, "Błąd zamykania strumienia", e);
+        }
+    }
+}