Merge

.gitignore

@@ -1,15 +1,33 @@
-*.iml
+# Gradle files
-.gradle
+.gradle/
-/local.properties
+build/
-/.idea/caches
+
-/.idea/libraries
+# Local configuration file (sdk path, etc)
-/.idea/modules.xml
-/.idea/workspace.xml
-/.idea/navEditor.xml
-/.idea/assetWizardSettings.xml
-.DS_Store
-/build
-/captures
-.externalNativeBuild
-.cxx
 local.properties
+
+# Log/OS Files
+*.log
+
+# Android Studio generated files and folders
+captures/
+.externalNativeBuild/
+.cxx/
+*.apk
+output.json
+
+# IntelliJ
+*.iml
+.idea/
+misc.xml
+deploymentTargetDropDown.xml
+render.experimental.xml
+
+# Keystore files
+*.jks
+*.keystore
+
+# Google Services (e.g. APIs or Firebase)
+google-services.json
+
+# Android Profiling
+*.hprof

.idea/gradle.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>

app/build.gradle.kts

@@ -1,6 +1,7 @@
 plugins {
     id("com.android.application")
     id("org.jetbrains.kotlin.android")
+    id("com.google.devtools.ksp") version "1.9.0-1.0.13"
 }
 
 android {
@@ -22,8 +23,10 @@ android {
 
     buildTypes {
         release {
-            isMinifyEnabled = false
+            isMinifyEnabled = true
+            isShrinkResources = true
             proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro")
+            isCrunchPngs = false
         }
     }
     compileOptions {
@@ -48,10 +51,10 @@ android {
 
 dependencies {
 
-    implementation("androidx.core:core-ktx:1.10.1")
+    implementation("androidx.core:core-ktx:1.12.0")
-    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.6.1")
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.7.0")
-    implementation("androidx.activity:activity-compose:1.7.0")
+    implementation("androidx.activity:activity-compose:1.8.2")
-    implementation(platform("androidx.compose:compose-bom:2023.08.00"))
+    implementation(platform("androidx.compose:compose-bom:2024.02.01"))
     implementation("androidx.compose.ui:ui")
     implementation("androidx.compose.ui:ui-graphics")
     implementation("androidx.compose.ui:ui-tooling-preview")
@@ -59,8 +62,20 @@ dependencies {
     testImplementation("junit:junit:4.13.2")
     androidTestImplementation("androidx.test.ext:junit:1.1.5")
     androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
-    androidTestImplementation(platform("androidx.compose:compose-bom:2023.08.00"))
+    androidTestImplementation(platform("androidx.compose:compose-bom:2024.02.01"))
     androidTestImplementation("androidx.compose.ui:ui-test-junit4")
     debugImplementation("androidx.compose.ui:ui-tooling")
     debugImplementation("androidx.compose.ui:ui-test-manifest")
+
+    implementation("androidx.navigation:navigation-compose:2.7.7")
+    implementation("io.github.raamcosta.compose-destinations:core:1.0.2-beta")
+    ksp("io.github.raamcosta.compose-destinations:ksp:1.0.2-beta")
+
+    implementation("androidx.compose.material:material-icons-extended:1.6.2")
+
+    implementation("com.google.accompanist:accompanist-permissions:0.34.0")
+    implementation("androidx.camera:camera-camera2:1.3.1")
+    implementation("androidx.camera:camera-lifecycle:1.3.1")
+    implementation("androidx.camera:camera-view:1.3.1")
+    implementation("com.google.mlkit:barcode-scanning:17.2.0")
 }

app/src/main/AndroidManifest.xml

@@ -2,6 +2,10 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-feature android:name="android.hardware.camera"/>
+    <uses-feature android:name="android.hardware.camera.autofocus"/>
+    <uses-permission android:name="android.permission.CAMERA"/>
+
     <application
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
@@ -15,7 +19,6 @@
         <activity
             android:name=".MainActivity"
             android:exported="true"
-            android:label="@string/app_name"
             android:theme="@style/Theme.FlowSchool">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/java/it/edu/cassandroferminervi/flowschool/MainActivity.kt

@@ -4,12 +4,10 @@ import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Surface
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.tooling.preview.Preview
+import com.ramcosta.composedestinations.DestinationsNavHost
+import com.ramcosta.composedestinations.NavGraphs
 import it.edu.cassandroferminervi.flowschool.ui.theme.FlowSchoolTheme
 
 class MainActivity : ComponentActivity() {
@@ -17,27 +15,12 @@ class MainActivity : ComponentActivity() {
         super.onCreate(savedInstanceState)
         setContent {
             FlowSchoolTheme {
-                // A surface container using the 'background' color from the theme
+                Surface(
-                Surface(modifier = Modifier.fillMaxSize(), color = MaterialTheme.colorScheme.background) {
+                    modifier = Modifier.fillMaxSize()
-                    Greeting("Android")
+                ) {
+                    DestinationsNavHost(navGraph = NavGraphs.root)
                 }
             }
         }
     }
-}
-
-@Composable
-fun Greeting(name: String, modifier: Modifier = Modifier) {
-    Text(
-            text = "Hello $name!",
-            modifier = modifier
-    )
-}
-
-@Preview(showBackground = true)
-@Composable
-fun GreetingPreview() {
-    FlowSchoolTheme {
-        Greeting("Android")
-    }
 }

app/src/main/java/it/edu/cassandroferminervi/flowschool/screens/CameraScreen.kt

@@ -0,0 +1,56 @@
+package it.edu.cassandroferminervi.flowschool.screens
+
+import android.util.Log
+import androidx.camera.core.CameraSelector
+import androidx.camera.core.ImageAnalysis
+import androidx.camera.core.Preview
+import androidx.camera.lifecycle.ProcessCameraProvider
+import androidx.camera.view.PreviewView
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalLifecycleOwner
+import androidx.compose.ui.viewinterop.AndroidView
+import androidx.core.content.ContextCompat
+import it.edu.cassandroferminervi.flowschool.util.QrAnalyzer
+
+@Composable
+fun CameraScreen() {
+    val localContext = LocalContext.current
+    val lifecycleOwner = LocalLifecycleOwner.current
+    val cameraProviderFuture = remember {
+        ProcessCameraProvider.getInstance(localContext)
+    }
+    AndroidView(
+        modifier = Modifier.fillMaxSize(),
+        factory = { context ->
+            val previewView = PreviewView(context)
+            val preview = Preview.Builder().build()
+            val selector = CameraSelector.Builder()
+                .requireLensFacing(CameraSelector.LENS_FACING_BACK)
+                .build()
+
+            preview.setSurfaceProvider(previewView.surfaceProvider)
+
+            val imageAnalysis = ImageAnalysis.Builder().build()
+            imageAnalysis.setAnalyzer(
+                ContextCompat.getMainExecutor(context),
+                QrAnalyzer(context)
+            )
+
+            runCatching {
+                cameraProviderFuture.get().bindToLifecycle(
+                    lifecycleOwner,
+                    selector,
+                    preview,
+                    imageAnalysis
+                )
+            }.onFailure {
+                Log.e("CAMERA", "Camera bind error ${it.localizedMessage}", it)
+            }
+            previewView
+        }
+    )
+}

app/src/main/java/it/edu/cassandroferminervi/flowschool/screens/HomeScreen.kt

@@ -0,0 +1,41 @@
+package it.edu.cassandroferminervi.flowschool.screens
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.Button
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import com.ramcosta.composedestinations.PermissionScreenDestination
+import com.ramcosta.composedestinations.SearchingScreenDestination
+import com.ramcosta.composedestinations.annotation.Destination
+import com.ramcosta.composedestinations.navigation.DestinationsNavigator
+
+@Destination
+@Composable
+fun HomeScreen(navigator: DestinationsNavigator) {
+    Column(
+        verticalArrangement = Arrangement.Center,
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(horizontal = 50.dp)
+    ) {
+        Button(onClick = {
+            navigator.navigate(PermissionScreenDestination)
+        }, modifier = Modifier.align(Alignment.CenterHorizontally)) {
+            Text("Scannerizza codice QR")
+        }
+        Spacer(modifier = Modifier.height(8.dp))
+        Button(onClick = {
+            navigator.navigate(SearchingScreenDestination)
+        }, modifier = Modifier.align(Alignment.CenterHorizontally)) {
+            Text("Cerca professore")
+        }
+    }
+}

app/src/main/java/it/edu/cassandroferminervi/flowschool/screens/LoginScreen.kt

@@ -0,0 +1,97 @@
+package it.edu.cassandroferminervi.flowschool.screens
+
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Visibility
+import androidx.compose.material.icons.filled.VisibilityOff
+import androidx.compose.material3.Button
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextField
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.input.PasswordVisualTransformation
+import androidx.compose.ui.text.input.VisualTransformation
+import androidx.compose.ui.unit.dp
+import com.ramcosta.composedestinations.HomeScreenDestination
+import com.ramcosta.composedestinations.annotation.Destination
+import com.ramcosta.composedestinations.navigation.DestinationsNavigator
+import it.edu.cassandroferminervi.flowschool.R
+
+@Destination(start = true)
+@Composable
+fun LoginScreen(navigator: DestinationsNavigator) {
+    var code by remember { mutableStateOf("") }
+    var password by remember { mutableStateOf("") }
+    var passwordVisible by remember { mutableStateOf(false) }
+
+    Column(
+        verticalArrangement = Arrangement.Center,
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(horizontal = 50.dp)
+    ) {
+        Image(
+            painterResource(id = R.drawable.logo),
+            contentDescription = "Logo",
+            Modifier
+                .size(192.dp)
+                .align(Alignment.CenterHorizontally)
+                .clip(CircleShape)
+        )
+        Spacer(modifier = Modifier.height(64.dp))
+        TextField(
+            value = code,
+            onValueChange = { code = it },
+            label = { Text("Codice") },
+            singleLine = true,
+            modifier = Modifier.fillMaxWidth()
+        )
+        Spacer(modifier = Modifier.height(8.dp))
+        TextField(
+            value = password,
+            onValueChange = { password = it },
+            label = { Text("Password") },
+            singleLine = true,
+            visualTransformation = if (passwordVisible) VisualTransformation.None else PasswordVisualTransformation(),
+            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password),
+            trailingIcon = {
+                val image = if (passwordVisible)
+                    Icons.Filled.Visibility
+                else Icons.Filled.VisibilityOff
+
+                val description = if (passwordVisible) "Nascondi password" else "Mostra password"
+
+                IconButton(onClick = {passwordVisible = !passwordVisible}){
+                    Icon(imageVector  = image, description)
+                }
+            },
+            modifier = Modifier.fillMaxWidth()
+        )
+        Spacer(modifier = Modifier.height(8.dp))
+        Button(onClick = {
+            navigator.navigate(HomeScreenDestination)
+        }, modifier = Modifier.align(Alignment.End)) {
+            Text("Accedi")
+        }
+    }
+}

app/src/main/java/it/edu/cassandroferminervi/flowschool/screens/PermissionScreen.kt

@@ -0,0 +1,39 @@
+package it.edu.cassandroferminervi.flowschool.screens
+
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.SideEffect
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import com.google.accompanist.permissions.ExperimentalPermissionsApi
+import com.google.accompanist.permissions.isGranted
+import com.google.accompanist.permissions.rememberPermissionState
+import com.google.accompanist.permissions.shouldShowRationale
+import com.ramcosta.composedestinations.annotation.Destination
+
+@OptIn(ExperimentalPermissionsApi::class)
+@Destination
+@Composable
+fun PermissionScreen() {
+    val cameraPermissionState = rememberPermissionState(android.Manifest.permission.CAMERA)
+
+    if (cameraPermissionState.status.isGranted) {
+        CameraScreen()
+    } else {
+        Box (
+            contentAlignment = Alignment.Center,
+            modifier = Modifier.fillMaxSize()
+        ) {
+            if (cameraPermissionState.status.shouldShowRationale) {
+                Text("Attiva il permesso per la fotocamera dalle impostazioni")
+            } else {
+                SideEffect {
+                    cameraPermissionState.run { launchPermissionRequest() }
+                }
+                Text("Permessi disattivati per la fotocamera")
+            }
+        }
+    }
+}

app/src/main/java/it/edu/cassandroferminervi/flowschool/screens/SearchingScreen.kt

@@ -0,0 +1,129 @@
+package it.edu.cassandroferminervi.flowschool.screens
+
+import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.material3.TextField
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.ramcosta.composedestinations.TeacherScreenDestination
+import com.ramcosta.composedestinations.annotation.Destination
+import com.ramcosta.composedestinations.navigation.DestinationsNavigator
+
+@Destination
+@Composable
+fun SearchingScreen(navigator: DestinationsNavigator) {
+    val teachers = listOf(
+        "Mario Rossi",
+        "Michele Verdi",
+        "Fabio Bianchi"
+    ).groupBy {
+        it.first()
+    }.toSortedMap()
+        .map {
+            Category(
+                it.key.toString(),
+                items = it.value
+            )
+        }
+    var filter by remember { mutableStateOf("") }
+
+    Column {
+        TextField(
+            value = filter,
+            onValueChange = { filter = it },
+            label = { Text("Cerca") },
+            singleLine = true,
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(16.dp)
+        )
+        CategorizedLazyColumn(
+            categories = teachers,
+            navigator = navigator,
+            filter = filter
+        )
+    }
+}
+
+data class Category(
+    val name: String,
+    val items: List<String>
+)
+
+@Composable
+private fun CategoryHeader(
+    text: String,
+    modifier: Modifier = Modifier
+) {
+    Text(
+        text = text,
+        fontSize = 16.sp,
+        fontWeight = FontWeight.Bold,
+        modifier = modifier
+            .fillMaxWidth()
+            .background(MaterialTheme.colorScheme.primaryContainer)
+            .padding(16.dp)
+    )
+}
+
+@Composable
+private fun CategoryItem(
+    text: String,
+    navigator: DestinationsNavigator,
+    modifier: Modifier = Modifier
+) {
+    TextButton(onClick = {
+        navigator.navigate(TeacherScreenDestination("test"))
+    }) {
+        Text(
+            text = text,
+            fontSize = 14.sp,
+            modifier = modifier
+                .fillMaxWidth()
+                .background(MaterialTheme.colorScheme.background)
+                .padding(16.dp)
+        )
+    }
+}
+
+@OptIn(ExperimentalFoundationApi::class)
+@Composable
+private fun CategorizedLazyColumn(
+    categories: List<Category>,
+    navigator: DestinationsNavigator,
+    filter: String,
+    modifier: Modifier = Modifier
+) {
+    LazyColumn(modifier) {
+        categories.forEach { category ->
+            if (category.items.any {
+                    it.contains(filter, ignoreCase = true)
+                }) {
+                stickyHeader {
+                    CategoryHeader(category.name)
+                }
+            }
+
+                items(items = category.items.filter {
+                it.contains(filter, ignoreCase = true)
+            }) { text ->
+                CategoryItem(text, navigator)
+            }
+        }
+    }
+}

app/src/main/java/it/edu/cassandroferminervi/flowschool/screens/TeacherScreen.kt

@@ -0,0 +1,23 @@
+package it.edu.cassandroferminervi.flowschool.screens
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import com.ramcosta.composedestinations.annotation.Destination
+
+@Destination
+@Composable
+fun TeacherScreen(codice: String) {
+    Column(
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.Center,
+        modifier = Modifier.fillMaxSize()
+    ) {
+        Text("Codice prof: $codice")
+        Text("Presente: si")
+    }
+}

app/src/main/java/it/edu/cassandroferminervi/flowschool/util/QrAnalyzer.kt

@@ -0,0 +1,40 @@
+package it.edu.cassandroferminervi.flowschool.util
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.widget.Toast
+import androidx.camera.core.ImageAnalysis
+import androidx.camera.core.ImageProxy
+import com.google.mlkit.vision.barcode.BarcodeScannerOptions
+import com.google.mlkit.vision.barcode.BarcodeScanning
+import com.google.mlkit.vision.barcode.common.Barcode
+import com.google.mlkit.vision.common.InputImage
+
+class QrAnalyzer(private val context: Context) : ImageAnalysis.Analyzer {
+    private val options = BarcodeScannerOptions.Builder()
+        .setBarcodeFormats(Barcode.FORMAT_QR_CODE)
+        .build()
+
+    private val scanner = BarcodeScanning.getClient(options)
+
+    @SuppressLint("UnsafeOptInUsageError")
+    override fun analyze(imageProxy: ImageProxy) {
+        imageProxy.image
+            ?.let { image ->
+                scanner.process(
+                    InputImage.fromMediaImage(
+                        image, imageProxy.imageInfo.rotationDegrees
+                    )
+                ).addOnSuccessListener { barcode ->
+                    barcode?.takeIf { it.isNotEmpty() }
+                        ?.mapNotNull { it.rawValue }
+                        ?.joinToString(",")
+                        ?.let { Toast.makeText(context, it, Toast.LENGTH_SHORT).show() }
+                }.addOnCompleteListener {
+                    imageProxy.close()
+                }
+            }
+    }
+
+
+}

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,6 +1,5 @@
 <?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" />
+    <background android:drawable="@mipmap/ic_launcher_background"/>
-    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
-    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
 </adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -1,6 +1,5 @@
 <?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" />
+    <background android:drawable="@mipmap/ic_launcher_background"/>
-    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
-    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
 </adaptive-icon>

build.gradle.kts

@@ -1,5 +1,5 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
-    id("com.android.application") version "8.2.2" apply false
+    id("com.android.application") version "8.3.0" apply false
     id("org.jetbrains.kotlin.android") version "1.9.0" apply false
 }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 #Wed Feb 21 15:30:24 CET 2024
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists