AboutLibraries: display libraries

app/build.gradle.kts

@@ -92,6 +92,7 @@ dependencies {
     implementation(libs.pdfbox)
     implementation(libs.icons.extended)
     implementation(libs.zoomable)
+    implementation(libs.aboutlibraries.compose.m3)
 
     testImplementation(libs.junit)
     testImplementation(libs.assertj)

app/src/main/java/org/mydomain/myscan/MainActivity.kt

@@ -41,6 +41,7 @@ import org.mydomain.myscan.ui.theme.MyScanTheme
 import org.mydomain.myscan.view.AboutScreen
 import org.mydomain.myscan.view.CameraScreen
 import org.mydomain.myscan.view.DocumentScreen
+import org.mydomain.myscan.view.LibrariesScreen
 import org.opencv.android.OpenCVLoader
 import java.io.File
 
@@ -62,6 +63,7 @@ class MainActivity : ComponentActivity() {
                     toCameraScreen = { viewModel.navigateTo(Screen.Camera) },
                     toDocumentScreen = { viewModel.navigateTo(Screen.Document()) },
                     toAboutScreen = { viewModel.navigateTo(Screen.About) },
+                    toLibrariesScreen = { viewModel.navigateTo(Screen.Libraries) },
                     back = { viewModel.navigateBack() }
                 )
                 when (val screen = currentScreen) {
@@ -95,7 +97,10 @@ class MainActivity : ComponentActivity() {
                         )
                     }
                     is Screen.About -> {
-                        AboutScreen(onBack = navigation.back)
+                        AboutScreen(onBack = navigation.back, onViewLibraries = navigation.toLibrariesScreen)
+                    }
+                    is Screen.Libraries -> {
+                        LibrariesScreen(onBack = navigation.back)
                     }
                 }
             }

app/src/main/java/org/mydomain/myscan/Navigation.kt

@@ -18,11 +18,13 @@ sealed class Screen {
     object Camera : Screen()
     data class Document(val initialPage: Int = 0) : Screen()
     object About : Screen()
+    object Libraries : Screen()
 }
 
 data class Navigation(
     val toCameraScreen: () -> Unit,
     val toDocumentScreen: () -> Unit,
     val toAboutScreen: () -> Unit,
+    val toLibrariesScreen: () -> Unit,
     val back: () -> Unit,
 )

app/src/main/java/org/mydomain/myscan/view/AboutScreen.kt

@@ -57,8 +57,8 @@ import org.mydomain.myscan.ui.theme.MyScanTheme
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
-fun AboutScreen(onBack: () -> Unit) {
-    val showLicenceDialog = rememberSaveable { mutableStateOf(false) }
+fun AboutScreen(onBack: () -> Unit, onViewLibraries: () -> Unit) {
+    val showLicenseDialog = rememberSaveable { mutableStateOf(false) }
     val sheetState = rememberModalBottomSheetState(skipPartiallyExpanded = true)
     Scaffold(
         topBar = {
@@ -72,15 +72,19 @@ fun AboutScreen(onBack: () -> Unit) {
             )
         }
     ) { paddingValues ->
-        AboutContent(Modifier.padding(paddingValues), showLicenceDialog)
+        AboutContent(modifier = Modifier.padding(paddingValues), showLicenseDialog, onViewLibraries)
     }
-    if (showLicenceDialog.value) {
-        LicenseBottomSheet(sheetState, onDismiss = { showLicenceDialog.value = false })
+    if (showLicenseDialog.value) {
+        LicenseBottomSheet(sheetState, onDismiss = { showLicenseDialog.value = false })
     }
 }
 
 @Composable
-fun AboutContent(modifier: Modifier = Modifier, showLicenceDialog: MutableState<Boolean>) {
+fun AboutContent(
+    modifier: Modifier = Modifier,
+    showLicenseDialog: MutableState<Boolean>,
+    onViewLibraries: () -> Unit,
+    ) {
     Column(
         modifier = modifier
             .fillMaxSize()
@@ -104,7 +108,7 @@ fun AboutContent(modifier: Modifier = Modifier, showLicenceDialog: MutableState<
 
         Text(
             "Version",
-            style = MaterialTheme.typography.titleSmall
+            style = MaterialTheme.typography.titleMedium
         )
         Text(BuildConfig.VERSION_NAME)
 
@@ -112,7 +116,7 @@ fun AboutContent(modifier: Modifier = Modifier, showLicenceDialog: MutableState<
 
         Text(
             "License",
-            style = MaterialTheme.typography.titleSmall
+            style = MaterialTheme.typography.titleMedium
         )
         Text(
             "This application is licensed under the GNU General Public License v3.0.",
@@ -121,19 +125,26 @@ fun AboutContent(modifier: Modifier = Modifier, showLicenceDialog: MutableState<
         Text(
             text = "View the full license",
             style = MaterialTheme.typography.bodyMedium,
-            modifier = Modifier.clickable() { showLicenceDialog.value = true },
+            modifier = Modifier.clickable { showLicenseDialog.value = true },
             color = MaterialTheme.colorScheme.primary
         )
 
         Spacer(Modifier.height(16.dp))
 
         Text(
-            "This application is based on the following open-source libraries",
-            style = MaterialTheme.typography.titleSmall
+            "Libraries",
+            style = MaterialTheme.typography.titleMedium
         )
         Text(
-            "• CameraX\n• Jetpack Compose\n• LiteRT\n• OpenCV\n• PDFBox",
+            "This application uses several open-source libraries, including:\n" +
+                    "• CameraX\n• Jetpack Compose\n• LiteRT\n• OpenCV\n• PDFBox",
             style = MaterialTheme.typography.bodyMedium)
+        Text(
+            text = "View full list",
+            style = MaterialTheme.typography.bodyMedium,
+            modifier = Modifier.clickable(onClick = onViewLibraries),
+            color = MaterialTheme.colorScheme.primary
+        )
 
         Spacer(Modifier.height(32.dp))
     }
@@ -194,11 +205,10 @@ fun LicenseBottomSheet(
     }
 }
 
-
 @Preview
 @Composable
 fun AboutScreenPreview() {
     MyScanTheme {
-        AboutScreen(onBack = {})
+        AboutScreen(onBack = {}, onViewLibraries = {})
     }
 }

app/src/main/java/org/mydomain/myscan/view/DocumentScreen.kt

@@ -284,7 +284,8 @@ fun DocumentScreenPreview() {
                     BitmapFactory.decodeStream(input)
                 }
             },
-            navigation = Navigation({}, {}, {}, {}),
+            navigation = Navigation(
+                {}, {}, {}, {}, {}),
             pdfActions = PdfGenerationActions(
                 {}, {}, {},
                 MutableStateFlow(PdfGenerationUiState()),

app/src/main/java/org/mydomain/myscan/view/LibrariesScreen.kt

@@ -0,0 +1,67 @@
+/*
+ * Copyright 2025 Pierre-Yves Nicolas
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version.
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.mydomain.myscan.view
+
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import com.mikepenz.aboutlibraries.ui.compose.LibraryDefaults
+import com.mikepenz.aboutlibraries.ui.compose.android.rememberLibraries
+import com.mikepenz.aboutlibraries.ui.compose.m3.LibrariesContainer
+import org.mydomain.myscan.R
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun LibrariesScreen(onBack: () -> Unit) {
+    Scaffold(
+        topBar = {
+            TopAppBar(
+                title = { Text("Open-source libraries") },
+                navigationIcon = {
+                    IconButton(onClick = onBack) {
+                        Icon(Icons.AutoMirrored.Default.ArrowBack, contentDescription = "Back")
+                    }
+                }
+            )
+        }
+    ) { padding ->
+        Surface(modifier = Modifier
+            .fillMaxSize()
+            .padding(padding)
+        ) {
+            val librariesState by rememberLibraries(R.raw.aboutlibraries)
+            LibrariesContainer(
+                libraries = librariesState,
+                textStyles = LibraryDefaults.libraryTextStyles(
+                    nameTextStyle = MaterialTheme.typography.titleMedium,
+                    licensesTextStyle = MaterialTheme.typography.labelSmall
+                ),
+            )
+        }
+    }
+}
+

gradle/libs.versions.toml

@@ -46,6 +46,7 @@ litert-metadata = { group = "com.google.ai.edge.litert", name = "litert-metadata
 opencv = { group="org.opencv", name="opencv", version.ref = "opencv" }
 pdfbox = { group = "com.tom-roush", name = "pdfbox-android", version.ref = "pdfbox" }
 zoomable = { group = "net.engawapg.lib", name = "zoomable", version.ref = "zoomable" }
+aboutlibraries-compose-m3 = { module = "com.mikepenz:aboutlibraries-compose-m3", version.ref = "aboutLibraries" }
 
 assertj =  { group="org.assertj", name="assertj-core", version.ref = "assertj" }