First working version

1 month ago · 611429c223
43 changed files with 1643 additions and 0 deletions
--- a/.gitignore
+++ b/.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
--- a/app/.gitignore
+++ b/app/.gitignore
@ -0,0 +1 @@
+/build
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@ -0,0 +1,69 @@
+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.kotlin.compose)
+}
+
+android {
+    namespace = "com.dzecevic.babymonitor"
+    compileSdk {
+        version = release(36) {
+            minorApiLevel = 1
+        }
+    }
+
+    defaultConfig {
+        applicationId = "com.dzecevic.babymonitor"
+        minSdk = 26
+        targetSdk = 36
+        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
+    }
+    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.compose.ui)
+    implementation(libs.androidx.compose.ui.graphics)
+    implementation(libs.androidx.compose.ui.tooling.preview)
+    implementation(libs.androidx.compose.material3)
+    testImplementation(libs.junit)
+    androidTestImplementation(libs.androidx.junit)
+    androidTestImplementation(libs.androidx.espresso.core)
+    androidTestImplementation(platform(libs.androidx.compose.bom))
+    androidTestImplementation(libs.androidx.compose.ui.test.junit4)
+    debugImplementation(libs.androidx.compose.ui.tooling)
+    debugImplementation(libs.androidx.compose.ui.test.manifest)
+    // CameraX
+    val camerax_version = "1.3.4"
+    implementation("androidx.camera:camera-core:$camerax_version")
+    implementation("androidx.camera:camera-camera2:$camerax_version")
+    implementation("androidx.camera:camera-lifecycle:$camerax_version")
+    implementation("androidx.camera:camera-view:$camerax_version")
+
+// HTTP server
+    implementation("org.nanohttpd:nanohttpd:2.3.1")
+
+    implementation("androidx.lifecycle:lifecycle-service:2.7.0")
+}
--- a/app/proguard-rules.pro
+++ b/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
--- a/app/src/androidTest/java/com/dzecevic/babymonitor/ExampleInstrumentedTest.kt
+++ b/app/src/androidTest/java/com/dzecevic/babymonitor/ExampleInstrumentedTest.kt
@ -0,0 +1,24 @@
+package com.dzecevic.babymonitor
+
+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.dzecevic.babymonitor", appContext.packageName)
+    }
+}
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_CAMERA" />
+
+    <uses-feature android:name="android.hardware.camera.any" />
+
+    <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.BabyMonitor">
+        <activity
+            android:name=".MainActivity"
+            android:configChanges="orientation|screenSize|keyboardHidden"
+            android:exported="true"
+            android:label="@string/app_name"
+            android:theme="@style/Theme.BabyMonitor">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <service
+            android:name=".StreamService"
+            android:exported="false"
+            android:foregroundServiceType="camera" />
+    </application>
+
+</manifest>
--- a/app/src/main/java/com/dzecevic/babymonitor/FrameStore.kt
+++ b/app/src/main/java/com/dzecevic/babymonitor/FrameStore.kt
@ -0,0 +1,12 @@
+package com.dzecevic.babymonitor
+
+import java.util.concurrent.atomic.AtomicReference
+import java.util.concurrent.atomic.AtomicInteger
+
+object FrameStore {
+    val latestJpeg = AtomicReference<ByteArray?>(null)
+    val frameCount = AtomicInteger(0)
+
+    @Volatile
+    var isStreaming: Boolean = false
+}
--- a/app/src/main/java/com/dzecevic/babymonitor/MainActivity.kt
+++ b/app/src/main/java/com/dzecevic/babymonitor/MainActivity.kt
@ -0,0 +1,307 @@
+package com.dzecevic.babymonitor
+
+import android.Manifest
+import android.content.Context
+import android.content.pm.PackageManager
+import android.net.ConnectivityManager
+import android.net.NetworkCapabilities
+import android.net.wifi.WifiManager
+import android.os.Bundle
+import android.widget.Toast
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.camera.core.*
+import androidx.camera.lifecycle.ProcessCameraProvider
+import androidx.camera.view.PreviewView
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.*
+import androidx.compose.material3.Button
+import androidx.compose.material3.Text
+import androidx.compose.runtime.*
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.viewinterop.AndroidView
+import androidx.core.content.ContextCompat
+import java.net.Inet4Address
+import java.net.NetworkInterface
+import java.util.concurrent.ExecutorService
+import java.util.concurrent.Executors
+import java.util.concurrent.atomic.AtomicInteger
+import java.util.concurrent.atomic.AtomicReference
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.setValue
+import androidx.compose.foundation.layout.statusBarsPadding
+import android.content.Intent
+import com.dzecevic.babymonitor.FrameStore
+import androidx.compose.ui.Alignment
+
+
+class MainActivity : ComponentActivity() {
+
+    private val latestJpeg = AtomicReference<ByteArray?>(null)
+    private val serverPort = 8080
+
+    private var cameraProvider: ProcessCameraProvider? = null
+    private lateinit var cameraExecutor: ExecutorService
+    private var lensFacing = CameraSelector.LENS_FACING_BACK
+
+    private val frameCount = AtomicInteger(0)
+
+    private var rebindToken by mutableStateOf(0)
+
+    private val requestPermission = registerForActivityResult(
+        ActivityResultContracts.RequestPermission()
+    ) { granted ->
+        if (!granted) Toast.makeText(this, "Camera permission required", Toast.LENGTH_LONG).show()
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        cameraExecutor = Executors.newSingleThreadExecutor()
+
+        // request permission if needed
+        if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
+            != PackageManager.PERMISSION_GRANTED
+        ) {
+            requestPermission.launch(Manifest.permission.CAMERA)
+        }
+
+        setContent {
+            BabyMonitorScreen(
+                onStartServer = { ip ->
+                    val intent = Intent(this, StreamService::class.java)
+                    ContextCompat.startForegroundService(this, intent)
+
+                    Toast.makeText(this, "Open: http://$ip:$serverPort/", Toast.LENGTH_LONG).show()
+                },
+
+                onStopServer = {
+                    stopService(Intent(this, StreamService::class.java))
+                },
+
+                isServerRunning = { false },
+
+                onSwitchCamera = {
+                    lensFacing =
+                        if (lensFacing == CameraSelector.LENS_FACING_BACK) CameraSelector.LENS_FACING_FRONT
+                        else CameraSelector.LENS_FACING_BACK
+                    rebindToken++
+                },
+
+                rebindToken = rebindToken,
+
+                bindCamera = { previewView ->
+                    bindCameraUseCases(previewView)
+                },
+
+                getIp = { getLocalWifiIp() },
+
+                getFrames = { frameCount.get() }
+            )
+        }
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        cameraExecutor.shutdown()
+    }
+
+    private fun bindCameraUseCases(previewView: PreviewView) {
+        if (FrameStore.isStreaming) {
+            return
+        }
+        if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
+            != PackageManager.PERMISSION_GRANTED
+        ) return
+
+        val providerFuture = ProcessCameraProvider.getInstance(this)
+        providerFuture.addListener({
+            val provider = providerFuture.get()
+            cameraProvider = provider
+            provider.unbindAll()
+
+            val preview = Preview.Builder().build().also {
+                it.setSurfaceProvider(previewView.surfaceProvider)
+            }
+
+            val analysis = ImageAnalysis.Builder()
+                .setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST)
+                .setOutputImageFormat(ImageAnalysis.OUTPUT_IMAGE_FORMAT_YUV_420_888)
+                .build()
+
+            analysis.setAnalyzer(cameraExecutor) { image ->
+                try {
+                    val rotation = image.imageInfo.rotationDegrees
+                    val isFront = (lensFacing == CameraSelector.LENS_FACING_FRONT)
+
+                    val jpg = YuvToJpegConverter.toJpeg(
+                        image = image,
+                        quality = 70,
+                        rotationDegrees = rotation,
+                        mirrorHorizontally = isFront
+                    )
+                    FrameStore.latestJpeg.set(jpg)
+                    FrameStore.frameCount.incrementAndGet()
+                } catch (_: Exception) {
+                } finally {
+                    image.close()
+                }
+            }
+
+            val selector = CameraSelector.Builder()
+                .requireLensFacing(lensFacing)
+                .build()
+
+            try {
+                provider.bindToLifecycle(this, selector, preview, analysis)
+            } catch (e: Exception) {
+                Toast.makeText(this, "Camera bind failed: ${e.message}", Toast.LENGTH_LONG).show()
+            }
+        }, ContextCompat.getMainExecutor(this))
+    }
+
+    private fun getLocalWifiIp(): String? {
+        if (!isOnWifi()) return null
+
+        // Prefer wlan interface addresses
+        NetworkInterface.getNetworkInterfaces().toList().forEach { nif ->
+            nif.inetAddresses.toList().forEach { addr ->
+                if (!addr.isLoopbackAddress && addr is Inet4Address) {
+                    if (nif.name.startsWith("wlan") || nif.name.startsWith("wifi")) {
+                        return addr.hostAddress
+                    }
+                }
+            }
+        }
+
+        // Fallback to WifiManager
+        val wm = applicationContext.getSystemService(Context.WIFI_SERVICE) as WifiManager
+        val ipInt = wm.connectionInfo.ipAddress
+        if (ipInt == 0) return null
+        return "${ipInt and 0xFF}.${(ipInt shr 8) and 0xFF}.${(ipInt shr 16) and 0xFF}.${(ipInt shr 24) and 0xFF}"
+    }
+
+    private fun isOnWifi(): Boolean {
+        val cm = getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
+        val net = cm.activeNetwork ?: return false
+        val caps = cm.getNetworkCapabilities(net) ?: return false
+        return caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)
+    }
+}
+
+@Composable
+private fun BabyMonitorScreen(
+    onStartServer: (ip: String) -> Unit,
+    onStopServer: () -> Unit,
+    isServerRunning: () -> Boolean,
+    onSwitchCamera: () -> Unit,
+    bindCamera: (PreviewView) -> Unit,
+    getIp: () -> String?,
+    getFrames: () -> Int,
+    rebindToken: Int
+) {
+    val context = LocalContext.current
+    var ip by remember { mutableStateOf(getIp()) }
+    var running by remember { mutableStateOf(isServerRunning()) }
+
+    // UI refresh of IP when screen recomposes
+    LaunchedEffect(Unit) { ip = getIp() }
+
+    Box(Modifier.fillMaxSize()) {
+
+        val previewView = remember {
+            PreviewView(context).apply {
+                scaleType = PreviewView.ScaleType.FILL_CENTER
+            }
+        }
+
+        if (FrameStore.isStreaming) {
+
+            Column(
+                modifier = Modifier.fillMaxSize(),
+                verticalArrangement = Arrangement.Center,
+                horizontalAlignment = Alignment.CenterHorizontally
+            ) {
+                Text("Streaming active", color = Color.White)
+                Text("Frames: ${getFrames()}", color = Color.White)
+            }
+
+        } else {
+
+            AndroidView(
+                factory = { previewView },
+                modifier = Modifier.fillMaxSize()
+            )
+
+        }
+
+        LaunchedEffect(rebindToken) {
+            if (!FrameStore.isStreaming) {
+                bindCamera(previewView)
+            }
+        }
+
+        Column(
+            Modifier
+                .statusBarsPadding()
+                .padding(top = 8.dp)
+                .padding(horizontal = 12.dp)
+                .background(Color(0x80000000))
+                .padding(10.dp)
+        ) {
+            if (ip != null) {
+                Text(
+                    text = "URL: http://$ip:8080/",
+                    color = Color.White
+                )
+            } else {
+                Text(
+                    text = "Not connected to Wi-Fi",
+                    color = Color.Red
+                )
+            }
+
+            Spacer(Modifier.height(8.dp))
+
+            Text(
+                text = if (running) "Status: STREAMING" else "Status: STOPPED",
+                color = if (running) Color.Green else Color.Yellow
+            )
+
+            Spacer(Modifier.height(10.dp))
+
+            Row {
+                Button(onClick = {
+                    onSwitchCamera()
+                    ip = getIp()
+                }) { Text("Switch camera") }
+
+                Spacer(Modifier.width(8.dp))
+
+                Button(onClick = {
+                    ip = getIp()
+                    val currentIp = ip
+                    if (currentIp == null) {
+                        Toast.makeText(context, "Connect to Wi-Fi first", Toast.LENGTH_LONG).show()
+                        return@Button
+                    }
+
+                    if (!running) {
+                        onStartServer(currentIp)
+                        running = true
+                    } else {
+                        onStopServer()
+                        running = false
+                    }
+
+                }) {
+                    Text(if (!running) "Start streaming" else "Stop streaming")
+                }
+            }
+        }
+    }
+}
--- a/app/src/main/java/com/dzecevic/babymonitor/MjpegServer.kt
+++ b/app/src/main/java/com/dzecevic/babymonitor/MjpegServer.kt
@ -0,0 +1,116 @@
+package com.dzecevic.babymonitor
+
+import fi.iki.elonen.NanoHTTPD
+import java.io.ByteArrayOutputStream
+import java.util.concurrent.atomic.AtomicReference
+
+class MjpegServer(
+    port: Int,
+    private val latestJpeg: AtomicReference<ByteArray?>
+) : NanoHTTPD(port) {
+
+    override fun serve(session: IHTTPSession): Response {
+        return when (session.uri) {
+            "/" -> newFixedLengthResponse(
+                Response.Status.OK,
+                "text/html",
+                """
+                    <html>
+                    <head>
+                      <meta name="viewport" content="width=device-width, initial-scale=1">
+                      <style>
+                        body {
+                          margin: 0;
+                          background: black;
+                          height: 100vh;
+                          overflow: hidden;
+                        }
+                
+                        .wrap {
+                          position: relative;
+                          width: 100vw;
+                          height: 100vh;
+                          display: flex;
+                          justify-content: center;
+                          align-items: center;
+                        }
+                
+                        img {
+                          max-width: 100%;
+                          max-height: 100%;
+                          object-fit: contain;
+                        }
+                
+                        .title {
+                          position: absolute;
+                          top: 12px;
+                          left: 12px;
+                          padding: 8px 10px;
+                          background: rgba(0,0,0,0.5);
+                          color: white;
+                          font-family: sans-serif;
+                          font-size: 14px;
+                          border-radius: 8px;
+                          z-index: 10;
+                          text-decoration: none;
+                        }
+                      </style>
+                    </head>
+                
+                    <body>
+                      <div class="wrap">
+                        <a class="title" href="mailto:domagoj@zecevic-ninja.com">
+                          Baby Monitor by domagoj@zecevic-ninja.com
+                        </a>
+                        <img src="/mjpeg" />
+                      </div>
+                    </body>
+                    </html>
+                """.trimIndent()
+            )
+            "/mjpeg" -> {
+                val boundary = "mjpegboundary"
+                val mime = "multipart/x-mixed-replace; boundary=$boundary"
+
+                val stream = object : java.io.InputStream() {
+                    private var buffer = ByteArray(0)
+                    private var idx = 0
+
+                    override fun read(): Int {
+                        if (idx >= buffer.size) {
+                            buffer = nextChunk(boundary)
+                            idx = 0
+                        }
+                        return buffer[idx++].toInt() and 0xFF
+                    }
+                }
+
+                newChunkedResponse(Response.Status.OK, mime, stream).apply {
+                    addHeader("Cache-Control", "no-cache")
+                    addHeader("Pragma", "no-cache")
+                    addHeader("Connection", "close")
+                }
+            }
+            else -> newFixedLengthResponse(Response.Status.NOT_FOUND, "text/plain", "Not found")
+        }
+    }
+
+    private fun nextChunk(boundary: String): ByteArray {
+        var jpg = latestJpeg.get()
+        while (jpg == null) {
+            Thread.sleep(30)
+            jpg = latestJpeg.get()
+        }
+
+        val out = ByteArrayOutputStream()
+        out.write(("--$boundary\r\n").toByteArray())
+        out.write("Content-Type: image/jpeg\r\n".toByteArray())
+        out.write(("Content-Length: ${jpg.size}\r\n\r\n").toByteArray())
+        out.write(jpg)
+        out.write("\r\n".toByteArray())
+
+        // ~20 FPS max; tune later
+        Thread.sleep(50)
+        return out.toByteArray()
+    }
+}
--- a/app/src/main/java/com/dzecevic/babymonitor/StreamService.kt
+++ b/app/src/main/java/com/dzecevic/babymonitor/StreamService.kt
@ -0,0 +1,134 @@
+package com.dzecevic.babymonitor
+
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.content.Intent
+import android.os.Build
+import android.os.PowerManager
+import androidx.camera.core.CameraSelector
+import androidx.camera.core.ImageAnalysis
+import androidx.camera.core.ImageProxy
+import androidx.camera.lifecycle.ProcessCameraProvider
+import androidx.core.app.NotificationCompat
+import androidx.core.content.ContextCompat
+import androidx.lifecycle.LifecycleService
+import fi.iki.elonen.NanoHTTPD
+import java.util.concurrent.ExecutorService
+import java.util.concurrent.Executors
+
+class StreamService : LifecycleService() {
+
+    private var wakeLock: PowerManager.WakeLock? = null
+    private var server: MjpegServer? = null
+
+    private var cameraProvider: ProcessCameraProvider? = null
+    private lateinit var cameraExecutor: ExecutorService
+
+    // start with back camera
+    private var lensFacing = CameraSelector.LENS_FACING_BACK
+
+    override fun onCreate() {
+        super.onCreate()
+        FrameStore.isStreaming = true
+        startForeground(1, buildNotification())
+        acquireWakeLock()
+
+        cameraExecutor = Executors.newSingleThreadExecutor()
+
+        // Server reads from FrameStore
+        server = MjpegServer(8080, FrameStore.latestJpeg).apply {
+            start(NanoHTTPD.SOCKET_READ_TIMEOUT, false)
+        }
+
+        startCameraAnalysis()
+    }
+
+    override fun onDestroy() {
+        try {
+            cameraProvider?.unbindAll()
+        } catch (_: Exception) { }
+        FrameStore.isStreaming = false
+
+        server?.stop()
+        server = null
+
+        cameraExecutor.shutdown()
+        releaseWakeLock()
+
+        super.onDestroy()
+    }
+
+    private fun startCameraAnalysis() {
+        val future = ProcessCameraProvider.getInstance(this)
+        future.addListener({
+            val provider = future.get()
+            cameraProvider = provider
+            provider.unbindAll()
+
+            val analysis = ImageAnalysis.Builder()
+                .setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST)
+                .setOutputImageFormat(ImageAnalysis.OUTPUT_IMAGE_FORMAT_YUV_420_888)
+                .build()
+
+            analysis.setAnalyzer(cameraExecutor) { image: ImageProxy ->
+                try {
+                    val rotation = image.imageInfo.rotationDegrees
+                    val isFront = (lensFacing == CameraSelector.LENS_FACING_FRONT)
+
+                    val jpg = YuvToJpegConverter.toJpeg(
+                        image = image,
+                        quality = 70,
+                        rotationDegrees = rotation,
+                        mirrorHorizontally = isFront
+                    )
+
+                    FrameStore.latestJpeg.set(jpg)
+                    FrameStore.frameCount.incrementAndGet()
+                } catch (_: Exception) {
+                } finally {
+                    image.close()
+                }
+            }
+
+            val selector = CameraSelector.Builder()
+                .requireLensFacing(lensFacing)
+                .build()
+
+            provider.bindToLifecycle(this, selector, analysis)
+        }, ContextCompat.getMainExecutor(this))
+    }
+
+    // Optional: later we can add Intent actions to switch camera
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        // If you later send ACTION_SWITCH, handle it here.
+        return super.onStartCommand(intent, flags, startId)
+    }
+
+    private fun acquireWakeLock() {
+        val pm = getSystemService(POWER_SERVICE) as PowerManager
+        wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "BabyMonitor:StreamLock")
+        wakeLock?.acquire()
+    }
+
+    private fun releaseWakeLock() {
+        if (wakeLock?.isHeld == true) wakeLock?.release()
+        wakeLock = null
+    }
+
+    private fun buildNotification(): Notification {
+        val channelId = "babymonitor_stream"
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            val nm = getSystemService(NOTIFICATION_SERVICE) as NotificationManager
+            nm.createNotificationChannel(
+                NotificationChannel(channelId, "BabyMonitor streaming", NotificationManager.IMPORTANCE_LOW)
+            )
+        }
+        return NotificationCompat.Builder(this, channelId)
+            .setSmallIcon(android.R.drawable.presence_video_online)
+            .setContentTitle("BabyMonitor streaming")
+            .setContentText("Streaming on http://<phone-ip>:8080/")
+            .setOngoing(true)
+            .build()
+    }
+}
--- a/app/src/main/java/com/dzecevic/babymonitor/YuvToJpegConverter.kt
+++ b/app/src/main/java/com/dzecevic/babymonitor/YuvToJpegConverter.kt
@ -0,0 +1,69 @@
+package com.dzecevic.babymonitor
+
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import android.graphics.ImageFormat
+import android.graphics.Matrix
+import android.graphics.Rect
+import android.graphics.YuvImage
+import androidx.camera.core.ImageProxy
+import java.io.ByteArrayOutputStream
+
+object YuvToJpegConverter {
+
+    fun toJpeg(
+        image: ImageProxy,
+        quality: Int = 70,
+        rotationDegrees: Int = 0,
+        mirrorHorizontally: Boolean = false
+    ): ByteArray {
+        // --- YUV -> NV21 ---
+        val yBuffer = image.planes[0].buffer
+        val uBuffer = image.planes[1].buffer
+        val vBuffer = image.planes[2].buffer
+
+        val ySize = yBuffer.remaining()
+        val uSize = uBuffer.remaining()
+        val vSize = vBuffer.remaining()
+
+        val nv21 = ByteArray(ySize + uSize + vSize)
+        yBuffer.get(nv21, 0, ySize)
+        vBuffer.get(nv21, ySize, vSize)           // V
+        uBuffer.get(nv21, ySize + vSize, uSize)   // U
+
+        // --- NV21 -> JPEG bytes ---
+        val yuv = YuvImage(nv21, ImageFormat.NV21, image.width, image.height, null)
+        val jpegOut = ByteArrayOutputStream()
+        yuv.compressToJpeg(Rect(0, 0, image.width, image.height), quality.coerceIn(1, 100), jpegOut)
+        val jpegBytes = jpegOut.toByteArray()
+
+        if (rotationDegrees % 360 == 0 && !mirrorHorizontally) {
+            return jpegBytes
+        }
+
+        // --- JPEG bytes -> Bitmap -> rotate/mirror -> JPEG bytes ---
+        val bitmap = BitmapFactory.decodeByteArray(jpegBytes, 0, jpegBytes.size)
+            ?: return jpegBytes
+
+        val matrix = Matrix().apply {
+            if (mirrorHorizontally) {
+                // mirror around center
+                preScale(-1f, 1f)
+            }
+            if (rotationDegrees % 360 != 0) {
+                postRotate(rotationDegrees.toFloat())
+            }
+        }
+
+        val transformed = Bitmap.createBitmap(bitmap, 0, 0, bitmap.width, bitmap.height, matrix, true)
+
+        val finalOut = ByteArrayOutputStream()
+        transformed.compress(Bitmap.CompressFormat.JPEG, quality.coerceIn(1, 100), finalOut)
+
+        // Cleanup bitmaps
+        bitmap.recycle()
+        if (transformed != bitmap) transformed.recycle()
+
+        return finalOut.toByteArray()
+    }
+}
--- a/app/src/main/java/com/dzecevic/babymonitor/ui/theme/Color.kt
+++ b/app/src/main/java/com/dzecevic/babymonitor/ui/theme/Color.kt
@ -0,0 +1,11 @@
+package com.dzecevic.babymonitor.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)
--- a/app/src/main/java/com/dzecevic/babymonitor/ui/theme/Theme.kt
+++ b/app/src/main/java/com/dzecevic/babymonitor/ui/theme/Theme.kt
@ -0,0 +1,58 @@
+package com.dzecevic.babymonitor.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 BabyMonitorTheme(
+    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
+    )
+}
--- a/app/src/main/java/com/dzecevic/babymonitor/ui/theme/Type.kt
+++ b/app/src/main/java/com/dzecevic/babymonitor/ui/theme/Type.kt
@ -0,0 +1,34 @@
+package com.dzecevic.babymonitor.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
+    )
+    */
+)
--- a/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/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>
--- a/app/src/main/res/drawable/ic_launcher_foreground.xml
+++ b/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>
--- a/app/src/main/res/mipmap-anydpi/ic_launcher.xml
+++ b/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>
--- a/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml
+++ b/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>
--- a/app/src/main/res/mipmap-hdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-mdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
--- a/app/src/main/res/values/colors.xml
+++ b/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>
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">BabyMonitor</string>
+</resources>
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="Theme.BabyMonitor" parent="android:Theme.Material.Light.NoActionBar" />
+</resources>
--- a/app/src/main/res/xml/backup_rules.xml
+++ b/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>
--- a/app/src/main/res/xml/data_extraction_rules.xml
+++ b/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>
--- a/app/src/test/java/com/dzecevic/babymonitor/ExampleUnitTest.kt
+++ b/app/src/test/java/com/dzecevic/babymonitor/ExampleUnitTest.kt
@ -0,0 +1,17 @@
+package com.dzecevic.babymonitor
+
+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)
+    }
+}
--- a/build.gradle.kts
+++ b/build.gradle.kts
@ -0,0 +1,5 @@
+// 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.compose) apply false
+}
--- a/gradle.properties
+++ b/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
--- a/gradle/gradle-daemon-jvm.properties
+++ b/gradle/gradle-daemon-jvm.properties
@ -0,0 +1,12 @@
+#This file is generated by updateDaemonJvm
+toolchainUrl.FREE_BSD.AARCH64=https\://api.foojay.io/disco/v3.0/ids/ec7520a1e057cd116f9544c42142a16b/redirect
+toolchainUrl.FREE_BSD.X86_64=https\://api.foojay.io/disco/v3.0/ids/4c4f879899012ff0a8b2e2117df03b0e/redirect
+toolchainUrl.LINUX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/ec7520a1e057cd116f9544c42142a16b/redirect
+toolchainUrl.LINUX.X86_64=https\://api.foojay.io/disco/v3.0/ids/4c4f879899012ff0a8b2e2117df03b0e/redirect
+toolchainUrl.MAC_OS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/73bcfb608d1fde9fb62e462f834a3299/redirect
+toolchainUrl.MAC_OS.X86_64=https\://api.foojay.io/disco/v3.0/ids/846ee0d876d26a26f37aa1ce8de73224/redirect
+toolchainUrl.UNIX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/ec7520a1e057cd116f9544c42142a16b/redirect
+toolchainUrl.UNIX.X86_64=https\://api.foojay.io/disco/v3.0/ids/4c4f879899012ff0a8b2e2117df03b0e/redirect
+toolchainUrl.WINDOWS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/9482ddec596298c84656d31d16652665/redirect
+toolchainUrl.WINDOWS.X86_64=https\://api.foojay.io/disco/v3.0/ids/39701d92e1756bb2f141eb67cd4c660e/redirect
+toolchainVersion=21
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@ -0,0 +1,31 @@
+[versions]
+agp = "9.0.0"
+coreKtx = "1.10.1"
+junit = "4.13.2"
+junitVersion = "1.1.5"
+espressoCore = "3.5.1"
+lifecycleRuntimeKtx = "2.6.1"
+activityCompose = "1.8.0"
+kotlin = "2.0.21"
+composeBom = "2024.09.00"
+
+[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-compose-ui = { group = "androidx.compose.ui", name = "ui" }
+androidx-compose-ui-graphics = { group = "androidx.compose.ui", name = "ui-graphics" }
+androidx-compose-ui-tooling = { group = "androidx.compose.ui", name = "ui-tooling" }
+androidx-compose-ui-tooling-preview = { group = "androidx.compose.ui", name = "ui-tooling-preview" }
+androidx-compose-ui-test-manifest = { group = "androidx.compose.ui", name = "ui-test-manifest" }
+androidx-compose-ui-test-junit4 = { group = "androidx.compose.ui", name = "ui-test-junit4" }
+androidx-compose-material3 = { group = "androidx.compose.material3", name = "material3" }
+
+[plugins]
+android-application = { id = "com.android.application", version.ref = "agp" }
+kotlin-compose = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
+
--- a/gradle/wrapper/gradle-wrapper.jar
+++ b/gradle/wrapper/gradle-wrapper.jar
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,9 @@
+#Wed Feb 11 14:16:06 CET 2026
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionSha256Sum=72f44c9f8ebcb1af43838f45ee5c4aa9c5444898b3468ab3f4af7b6076c5bc3f
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
--- a/251
+++ b/251
@ -0,0 +1,251 @@
+#!/bin/sh
+
+#
+# Copyright © 2015 the original 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.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH="\\\"\\\""
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$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: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# 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"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
--- a/gradlew.bat
+++ b/gradlew.bat
@ -0,0 +1,94 @@
+@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
+@rem SPDX-License-Identifier: Apache-2.0
+@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=.
+@rem This is normally unused
+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% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 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!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@ -0,0 +1,26 @@
+pluginManagement {
+    repositories {
+        google {
+            content {
+                includeGroupByRegex("com\\.android.*")
+                includeGroupByRegex("com\\.google.*")
+                includeGroupByRegex("androidx.*")
+            }
+        }
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+plugins {
+    id("org.gradle.toolchains.foojay-resolver-convention") version "1.0.0"
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "BabyMonitor"
+include(":app")