feat: add solved

app/.gitignore

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+/build

app/build.gradle.kts

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+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.kotlin.android)
+}
+
+android {
+    namespace = "ro.pub.cs.systems.eim.PracticalTest01"
+    compileSdk = 35
+
+    defaultConfig {
+        applicationId = "ro.pub.cs.systems.eim.PracticalTest01"
+        minSdk = 24
+        targetSdk = 34
+        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"
+    }
+}
+
+dependencies {
+
+    implementation(libs.androidx.core.ktx)
+    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)
+}

app/proguard-rules.pro

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+# 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

app/src/androidTest/java/ro/pub/cs/systems/eim/PracticalTest01/ExampleInstrumentedTest.kt

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+package ro.pub.cs.systems.eim.PracticalTest01
+
+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("ro.pub.cs.systems.eim.PracticalTest01", appContext.packageName)
+    }
+}

app/src/main/AndroidManifest.xml

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+<?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.PracticalTest01"
+        tools:targetApi="31">
+        <service
+            android:name=".Colocviu1_1Service"
+            android:enabled="true"
+            android:exported="true"></service>
+
+        <activity
+            android:name=".Colocviu1_1SecondaryActivity"
+            android:exported="false" />
+        <activity
+            android:name=".Colocviu1_1MainActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/ro/pub/cs/systems/eim/PracticalTest01/Colocviu1_1MainActivity.kt

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+package ro.pub.cs.systems.eim.PracticalTest01
+
+import android.app.Activity
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
+import android.os.Build
+import android.os.Bundle
+import android.util.Log
+import android.widget.Button
+import android.widget.EditText
+import android.widget.Toast
+import androidx.activity.enableEdgeToEdge
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.annotation.RequiresApi
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+
+class Colocviu1_1MainActivity : AppCompatActivity() {
+
+    private lateinit var input1: EditText
+    private lateinit var input2: EditText
+
+    private var leftNumber = 0
+    private var rightNumber = 0
+
+    private val intentFilter = IntentFilter()
+
+    private val messageBroadcastReceiver = object : BroadcastReceiver() {
+        override fun onReceive(context: Context?, intent: Intent?) {
+            intent?.let {
+                Log.d("RECEIVER", it.action.toString())
+                Log.d("RECEIVER", it.getStringExtra("message").toString())
+            }
+        }
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContentView(R.layout.activity_colocviul1_1_main)
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
+
+        input1 = findViewById(R.id.input1)
+        input2 = findViewById(R.id.input2)
+        input1.setText("0")
+        input2.setText("0")
+        val pressMeButton = findViewById<Button>(R.id.press_me_button)
+        pressMeButton.setOnClickListener {
+            leftNumber++;
+            input1.setText(leftNumber.toString())
+            if (leftNumber + rightNumber == 4) {
+                val intent = Intent(applicationContext, Colocviu1_1Service::class.java).apply {
+                    putExtra("total_clicks", rightNumber+leftNumber)
+                }
+                applicationContext.startService(intent)
+            }
+        }
+
+        val pressMeToo = findViewById<Button>(R.id.press_me_too_button)
+        pressMeToo.setOnClickListener {
+
+            rightNumber++;
+            input2.setText(rightNumber.toString())
+
+            if (leftNumber + rightNumber == 4) {
+                val intent = Intent(applicationContext, Colocviu1_1Service::class.java).apply {
+                    putExtra("total_clicks", rightNumber+leftNumber)
+                }
+                applicationContext.startService(intent)
+            }
+        }
+
+        val activityResultsLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
+            if (result.resultCode == Activity.RESULT_OK) {
+                Toast.makeText(this, "The activity returned with result OK", Toast.LENGTH_LONG).show()
+            }
+            else if (result.resultCode == Activity.RESULT_CANCELED) {
+                Toast.makeText(this, "The activity returned with result CANCELED", Toast.LENGTH_LONG).show()
+                leftNumber = 0;
+                rightNumber = 0;
+                input1.setText("0")
+                input2.setText("0")
+            }
+        }
+
+        val navigateToSecondaryActivityButton = findViewById<Button>(R.id.navigate_to_second_activity)
+        navigateToSecondaryActivityButton.setOnClickListener {
+            val intent = Intent(this, Colocviu1_1SecondaryActivity::class.java)
+            intent.putExtra("leftNumber", leftNumber)
+            intent.putExtra("rightNumber", rightNumber)
+            activityResultsLauncher.launch(intent)
+        }
+
+        intentFilter.addAction("com.eim.BROADCAST_MESSAGE");
+    }
+
+    @RequiresApi(Build.VERSION_CODES.O)
+    override fun onResume() {
+        super.onResume()
+        //registerReceiver(messageBroadcastReceiver, intentFilter, RECEIVER_NOT_EXPORTED)
+        registerReceiver(messageBroadcastReceiver, intentFilter, RECEIVER_EXPORTED)
+    }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
+        outState.putInt("leftNumber", leftNumber)
+        outState.putInt("rightNumber", rightNumber)
+    }
+
+    override fun onRestoreInstanceState(savedInstanceState: Bundle) {
+        super.onRestoreInstanceState(savedInstanceState)
+        if (savedInstanceState.containsKey("leftNumber") && savedInstanceState.containsKey("rightNumber")) {
+            input1.setText(savedInstanceState.getInt("leftNumber").toString())
+            input2.setText(savedInstanceState.getInt("rightNumber").toString())
+            leftNumber = savedInstanceState.getInt("leftNumber")
+            rightNumber = savedInstanceState.getInt("rightNumber")
+        }
+    }
+
+}

app/src/main/java/ro/pub/cs/systems/eim/PracticalTest01/Colocviu1_1SecondaryActivity.kt

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+package ro.pub.cs.systems.eim.PracticalTest01
+
+import android.os.Bundle
+import android.widget.Button
+import android.widget.TextView
+import androidx.activity.enableEdgeToEdge
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+
+class Colocviu1_1SecondaryActivity : AppCompatActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_colocviu1_1_secondary)
+
+        val sumaDisplay = findViewById<TextView>(R.id.sumaClickuri)
+        val input1 = intent.getIntExtra("leftNumber", 0)
+        val input2 = intent.getIntExtra("rightNumber", 0)
+        val suma = input1 + input2
+        sumaDisplay.text = suma.toString()
+
+
+        val okButton = findViewById<Button>(R.id.register_button)
+        okButton.setOnClickListener {
+            setResult(RESULT_OK)
+            finish()
+        }
+
+        val cancelButton = findViewById<Button>(R.id.cancel_button)
+        cancelButton.setOnClickListener {
+            setResult(RESULT_CANCELED)
+            finish()
+        }
+    }
+}

app/src/main/java/ro/pub/cs/systems/eim/PracticalTest01/Colocviu1_1Service.kt

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+package ro.pub.cs.systems.eim.PracticalTest01
+
+import android.app.Service
+import android.content.Intent
+import android.os.Handler
+import android.os.IBinder
+import android.util.Log
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+
+
+class Colocviu1_1Service : Service() {
+
+    private var isTaskScheduled = false
+    private var handler = Handler()
+
+    val INSTRUCTION_EXTRA: String = "total_clicks"
+
+    val BROADCAST_ACTION: String = "com.eim.BROADCAST_MESSAGE"
+
+    val BROADCAST_EXTRA_MESSAGE: String = "message"
+
+
+    override fun onCreate() {
+        super.onCreate()
+    }
+
+    override fun onBind(intent: Intent?): IBinder? {
+        return null
+    }
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        Log.d("PracticalTest01Service", "onStartCommand() callback method was invoked")
+
+        if (intent != null && !isTaskScheduled) {
+            val instruction = intent.getIntExtra(INSTRUCTION_EXTRA, 0);
+            scheduleDelayedBroadcast(instruction.toString())
+            isTaskScheduled = true
+        }
+        return START_NOT_STICKY
+    }
+
+    private fun scheduleDelayedBroadcast(instruction: String) {
+        handler.postDelayed(Runnable {
+            sendInstructionBroadcast(instruction)
+            stopSelf()
+        }, 5000)
+    }
+
+    private fun sendInstructionBroadcast(instruction: String) {
+        val sdf: SimpleDateFormat = SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault())
+        val currentDateTime: String = sdf.format(Date())
+
+        val message = String.format("DateTime: %s, Instruction: %s", currentDateTime, instruction)
+
+        val broadcastIntent: Intent = Intent(BROADCAST_ACTION)
+        broadcastIntent.putExtra(BROADCAST_EXTRA_MESSAGE, message)
+
+        sendBroadcast(broadcastIntent)
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+
+    }
+}