├── .gitignore
├── README.md
├── app
├── .gitignore
├── build.gradle
├── proguard-rules.pro
└── src
│ └── main
│ ├── AndroidManifest.xml
│ ├── java
│ └── de
│ │ └── yanneckreiss
│ │ └── mlkittutorial
│ │ ├── MainActivity.kt
│ │ └── ui
│ │ ├── MainScreen.kt
│ │ ├── camera
│ │ ├── CameraScreen.kt
│ │ └── TextRecognitionAnalyzer.kt
│ │ ├── no_permission
│ │ └── NoPermissionScreen.kt
│ │ └── theme
│ │ ├── Color.kt
│ │ ├── Theme.kt
│ │ └── Type.kt
│ └── res
│ ├── drawable-v24
│ └── ic_launcher_foreground.xml
│ ├── drawable
│ └── ic_launcher_background.xml
│ ├── mipmap-anydpi-v26
│ ├── ic_launcher.xml
│ └── ic_launcher_round.xml
│ ├── mipmap-hdpi
│ ├── ic_launcher.webp
│ └── ic_launcher_round.webp
│ ├── mipmap-mdpi
│ ├── ic_launcher.webp
│ └── ic_launcher_round.webp
│ ├── mipmap-xhdpi
│ ├── ic_launcher.webp
│ └── ic_launcher_round.webp
│ ├── mipmap-xxhdpi
│ ├── ic_launcher.webp
│ └── ic_launcher_round.webp
│ ├── mipmap-xxxhdpi
│ ├── ic_launcher.webp
│ └── ic_launcher_round.webp
│ ├── values
│ ├── colors.xml
│ ├── strings.xml
│ └── themes.xml
│ └── xml
│ ├── backup_rules.xml
│ └── data_extraction_rules.xml
├── build.gradle
├── gradle.properties
├── gradle
└── wrapper
│ ├── gradle-wrapper.jar
│ └── gradle-wrapper.properties
├── gradlew
├── gradlew.bat
└── settings.gradle
/.gitignore:
--------------------------------------------------------------------------------
1 | *.iml
2 | .gradle
3 | /local.properties
4 | .idea
5 | .DS_Store
6 | /build
7 | /captures
8 | .externalNativeBuild
9 | .cxx
10 | local.properties
11 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # Jetpack Compose CameraX ML-Kit ShowCase
2 |
3 | This is a sample app for real-time text recognition, based on the device's camera stream.
4 |
5 | It's purpose is to showcase how to use [Google's ML-Kit](https://developers.google.com/ml-kit) with Jetpack Compose.
6 |
7 | If you want to learn more, make sure to check out [my YouTube video on this topic](https://youtu.be/wCADCaeS8-A)!
8 |
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/app/.gitignore:
--------------------------------------------------------------------------------
1 | /build
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/app/build.gradle:
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1 | plugins {
2 | id 'com.android.application'
3 | id 'org.jetbrains.kotlin.android'
4 | }
5 |
6 | android {
7 | namespace 'de.yanneckreiss.cameraxtutorial'
8 | compileSdk 34
9 |
10 | defaultConfig {
11 | applicationId "de.yanneckreiss.cameraxtutorial"
12 | minSdk 28
13 | targetSdk 34
14 | versionCode 1
15 | versionName "1.0.0"
16 |
17 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
18 | vectorDrawables {
19 | useSupportLibrary true
20 | }
21 | }
22 |
23 | buildTypes {
24 | release {
25 | minifyEnabled false
26 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
27 | }
28 | }
29 | compileOptions {
30 | sourceCompatibility JavaVersion.VERSION_17
31 | targetCompatibility JavaVersion.VERSION_17
32 | }
33 | kotlinOptions {
34 | jvmTarget = '17'
35 | }
36 | buildFeatures {
37 | compose true
38 | buildConfig = true
39 | }
40 | composeOptions {
41 | kotlinCompilerExtensionVersion '1.5.1'
42 | }
43 | packagingOptions {
44 | resources {
45 | excludes += '/META-INF/{AL2.0,LGPL2.1}'
46 | }
47 | }
48 | }
49 |
50 | dependencies {
51 |
52 | lintChecks("com.slack.lint.compose:compose-lint-checks:1.2.0")
53 |
54 | implementation 'androidx.core:core-ktx:1.10.1'
55 | implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.6.1'
56 | implementation 'androidx.activity:activity-compose:1.7.2'
57 |
58 | implementation platform('androidx.compose:compose-bom:2023.06.01')
59 | implementation 'androidx.compose.ui:ui'
60 | implementation 'androidx.compose.ui:ui-graphics'
61 | implementation 'androidx.compose.ui:ui-tooling-preview'
62 | implementation 'androidx.compose.material3:material3'
63 | implementation "androidx.compose.material:material-icons-extended"
64 | implementation 'androidx.compose.material:material:1.4.3'
65 | implementation 'androidx.cardview:cardview:1.0.0'
66 | implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
67 |
68 | debugImplementation 'androidx.compose.ui:ui-tooling'
69 | debugImplementation 'androidx.compose.ui:ui-test-manifest'
70 |
71 | ///// LIFECYCLE /////
72 | implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"
73 | implementation "androidx.lifecycle:lifecycle-viewmodel-compose:$lifecycle_version"
74 | implementation "androidx.lifecycle:lifecycle-runtime-compose:$lifecycle_version"
75 | implementation "androidx.lifecycle:lifecycle-runtime-ktx:$lifecycle_version"
76 | implementation "androidx.lifecycle:lifecycle-viewmodel-savedstate:$lifecycle_version"
77 |
78 | //// CAMERA STUFF ////
79 | implementation "androidx.camera:camera-camera2:$camerax_version"
80 | implementation "androidx.camera:camera-lifecycle:$camerax_version"
81 | implementation "androidx.camera:camera-view:$camerax_version"
82 | implementation "androidx.camera:camera-extensions:$camerax_version"
83 |
84 | //// ML-KIT ////
85 | implementation 'com.google.mlkit:text-recognition:16.0.0'
86 |
87 | //// ACCOMPANIST ////
88 | implementation "com.google.accompanist:accompanist-permissions:$accompanist_version"
89 |
90 | testImplementation 'junit:junit:4.13.2'
91 | androidTestImplementation 'androidx.test.ext:junit:1.1.5'
92 | androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
93 | androidTestImplementation platform('androidx.compose:compose-bom:2022.10.00')
94 | androidTestImplementation 'androidx.compose.ui:ui-test-junit4'
95 | debugImplementation 'androidx.compose.ui:ui-tooling'
96 | debugImplementation 'androidx.compose.ui:ui-test-manifest'
97 | }
98 |
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/app/proguard-rules.pro:
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1 | # Add project specific ProGuard rules here.
2 | # You can control the set of applied configuration files using the
3 | # proguardFiles setting in build.gradle.
4 | #
5 | # For more details, see
6 | # http://developer.android.com/guide/developing/tools/proguard.html
7 |
8 | # If your project uses WebView with JS, uncomment the following
9 | # and specify the fully qualified class name to the JavaScript interface
10 | # class:
11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
12 | # public *;
13 | #}
14 |
15 | # Uncomment this to preserve the line number information for
16 | # debugging stack traces.
17 | #-keepattributes SourceFile,LineNumberTable
18 |
19 | # If you keep the line number information, uncomment this to
20 | # hide the original source file name.
21 | #-renamesourcefileattribute SourceFile
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/app/src/main/AndroidManifest.xml:
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1 |
2 |
4 |
5 |
6 |
9 |
10 |
20 |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
32 |
33 |
34 |
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/app/src/main/java/de/yanneckreiss/mlkittutorial/MainActivity.kt:
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1 | package de.yanneckreiss.mlkittutorial
2 |
3 | import android.os.Bundle
4 | import androidx.activity.ComponentActivity
5 | import androidx.activity.compose.setContent
6 | import androidx.compose.foundation.layout.fillMaxSize
7 | import androidx.compose.material3.MaterialTheme
8 | import androidx.compose.material3.Surface
9 | import androidx.compose.ui.Modifier
10 | import de.yanneckreiss.mlkittutorial.ui.MainScreen
11 | import de.yanneckreiss.mlkittutorial.ui.theme.JetpackComposeMLKitTutorialTheme
12 |
13 | class MainActivity : ComponentActivity() {
14 |
15 | override fun onCreate(savedInstanceState: Bundle?) {
16 | super.onCreate(savedInstanceState)
17 |
18 | setContent {
19 | JetpackComposeMLKitTutorialTheme {
20 | Surface(
21 | modifier = Modifier.fillMaxSize(),
22 | color = MaterialTheme.colorScheme.background
23 | ) {
24 | MainScreen()
25 | }
26 | }
27 | }
28 | }
29 | }
30 |
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/app/src/main/java/de/yanneckreiss/mlkittutorial/ui/MainScreen.kt:
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1 | @file:OptIn(ExperimentalPermissionsApi::class)
2 |
3 | package de.yanneckreiss.mlkittutorial.ui
4 |
5 | import androidx.compose.runtime.Composable
6 | import androidx.compose.ui.tooling.preview.Preview
7 | import com.google.accompanist.permissions.ExperimentalPermissionsApi
8 | import com.google.accompanist.permissions.PermissionState
9 | import com.google.accompanist.permissions.isGranted
10 | import com.google.accompanist.permissions.rememberPermissionState
11 | import de.yanneckreiss.mlkittutorial.ui.camera.CameraScreen
12 | import de.yanneckreiss.mlkittutorial.ui.no_permission.NoPermissionScreen
13 |
14 | @Composable
15 | fun MainScreen() {
16 |
17 | val cameraPermissionState: PermissionState = rememberPermissionState(android.Manifest.permission.CAMERA)
18 |
19 | MainContent(
20 | hasPermission = cameraPermissionState.status.isGranted,
21 | onRequestPermission = cameraPermissionState::launchPermissionRequest
22 | )
23 | }
24 |
25 | @Composable
26 | private fun MainContent(
27 | hasPermission: Boolean,
28 | onRequestPermission: () -> Unit
29 | ) {
30 |
31 | if (hasPermission) {
32 | CameraScreen()
33 | } else {
34 | NoPermissionScreen(onRequestPermission)
35 | }
36 | }
37 |
38 | @Preview
39 | @Composable
40 | private fun Preview_MainContent() {
41 | MainContent(
42 | hasPermission = true,
43 | onRequestPermission = {}
44 | )
45 | }
46 |
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/app/src/main/java/de/yanneckreiss/mlkittutorial/ui/camera/CameraScreen.kt:
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1 | package de.yanneckreiss.mlkittutorial.ui.camera
2 |
3 | import android.content.Context
4 | import android.graphics.Color
5 | import android.view.ViewGroup
6 | import android.widget.LinearLayout
7 | import androidx.camera.core.AspectRatio
8 | import androidx.camera.view.CameraController
9 | import androidx.camera.view.LifecycleCameraController
10 | import androidx.camera.view.PreviewView
11 | import androidx.compose.foundation.background
12 | import androidx.compose.foundation.layout.Box
13 | import androidx.compose.foundation.layout.PaddingValues
14 | import androidx.compose.foundation.layout.fillMaxSize
15 | import androidx.compose.foundation.layout.fillMaxWidth
16 | import androidx.compose.foundation.layout.padding
17 | import androidx.compose.material.Scaffold
18 | import androidx.compose.material.Text
19 | import androidx.compose.material.TopAppBar
20 | import androidx.compose.runtime.Composable
21 | import androidx.compose.runtime.getValue
22 | import androidx.compose.runtime.mutableStateOf
23 | import androidx.compose.runtime.remember
24 | import androidx.compose.runtime.setValue
25 | import androidx.compose.ui.Modifier
26 | import androidx.compose.ui.platform.LocalContext
27 | import androidx.compose.ui.platform.LocalLifecycleOwner
28 | import androidx.compose.ui.unit.dp
29 | import androidx.compose.ui.viewinterop.AndroidView
30 | import androidx.core.content.ContextCompat
31 | import androidx.lifecycle.LifecycleOwner
32 |
33 | @Composable
34 | fun CameraScreen() {
35 | CameraContent()
36 | }
37 |
38 | @Composable
39 | private fun CameraContent() {
40 |
41 | val context: Context = LocalContext.current
42 | val lifecycleOwner: LifecycleOwner = LocalLifecycleOwner.current
43 | val cameraController: LifecycleCameraController = remember { LifecycleCameraController(context) }
44 | var detectedText: String by remember { mutableStateOf("No text detected yet..") }
45 |
46 | fun onTextUpdated(updatedText: String) {
47 | detectedText = updatedText
48 | }
49 |
50 | Scaffold(
51 | modifier = Modifier.fillMaxSize(),
52 | topBar = { TopAppBar(title = { Text("Text Scanner") }) },
53 | ) { paddingValues: PaddingValues ->
54 | Box(
55 | modifier = Modifier.fillMaxSize(),
56 | contentAlignment = androidx.compose.ui.Alignment.BottomCenter
57 | ) {
58 |
59 | AndroidView(
60 | modifier = Modifier
61 | .fillMaxSize()
62 | .padding(paddingValues),
63 | factory = { context ->
64 | PreviewView(context).apply {
65 | layoutParams = LinearLayout.LayoutParams(
66 | ViewGroup.LayoutParams.MATCH_PARENT,
67 | ViewGroup.LayoutParams.MATCH_PARENT
68 | )
69 | setBackgroundColor(Color.BLACK)
70 | implementationMode = PreviewView.ImplementationMode.COMPATIBLE
71 | scaleType = PreviewView.ScaleType.FILL_START
72 | }.also { previewView ->
73 | startTextRecognition(
74 | context = context,
75 | cameraController = cameraController,
76 | lifecycleOwner = lifecycleOwner,
77 | previewView = previewView,
78 | onDetectedTextUpdated = ::onTextUpdated
79 | )
80 | }
81 | }
82 | )
83 |
84 | Text(
85 | modifier = Modifier
86 | .fillMaxWidth()
87 | .background(androidx.compose.ui.graphics.Color.White)
88 | .padding(16.dp),
89 | text = detectedText,
90 | )
91 | }
92 | }
93 | }
94 |
95 | private fun startTextRecognition(
96 | context: Context,
97 | cameraController: LifecycleCameraController,
98 | lifecycleOwner: LifecycleOwner,
99 | previewView: PreviewView,
100 | onDetectedTextUpdated: (String) -> Unit
101 | ) {
102 |
103 | cameraController.imageAnalysisTargetSize = CameraController.OutputSize(AspectRatio.RATIO_16_9)
104 | cameraController.setImageAnalysisAnalyzer(
105 | ContextCompat.getMainExecutor(context),
106 | TextRecognitionAnalyzer(onDetectedTextUpdated = onDetectedTextUpdated)
107 | )
108 |
109 | cameraController.bindToLifecycle(lifecycleOwner)
110 | previewView.controller = cameraController
111 | }
112 |
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/app/src/main/java/de/yanneckreiss/mlkittutorial/ui/camera/TextRecognitionAnalyzer.kt:
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1 | package de.yanneckreiss.mlkittutorial.ui.camera
2 |
3 | import android.media.Image
4 | import androidx.annotation.OptIn
5 | import androidx.camera.core.ExperimentalGetImage
6 | import androidx.camera.core.ImageAnalysis
7 | import androidx.camera.core.ImageProxy
8 | import com.google.mlkit.vision.common.InputImage
9 | import com.google.mlkit.vision.text.Text
10 | import com.google.mlkit.vision.text.TextRecognition
11 | import com.google.mlkit.vision.text.TextRecognizer
12 | import com.google.mlkit.vision.text.latin.TextRecognizerOptions
13 | import kotlinx.coroutines.CoroutineScope
14 | import kotlinx.coroutines.Dispatchers
15 | import kotlinx.coroutines.SupervisorJob
16 | import kotlinx.coroutines.delay
17 | import kotlinx.coroutines.launch
18 | import kotlin.coroutines.resume
19 | import kotlin.coroutines.suspendCoroutine
20 |
21 | class TextRecognitionAnalyzer(
22 | private val onDetectedTextUpdated: (String) -> Unit
23 | ) : ImageAnalysis.Analyzer {
24 |
25 | companion object {
26 | const val THROTTLE_TIMEOUT_MS = 1_000L
27 | }
28 |
29 | private val scope: CoroutineScope = CoroutineScope(Dispatchers.IO + SupervisorJob())
30 | private val textRecognizer: TextRecognizer = TextRecognition.getClient(TextRecognizerOptions.DEFAULT_OPTIONS)
31 |
32 | @OptIn(ExperimentalGetImage::class)
33 | override fun analyze(imageProxy: ImageProxy) {
34 | scope.launch {
35 | val mediaImage: Image = imageProxy.image ?: run { imageProxy.close(); return@launch }
36 | val inputImage: InputImage = InputImage.fromMediaImage(mediaImage, imageProxy.imageInfo.rotationDegrees)
37 |
38 | suspendCoroutine { continuation ->
39 | textRecognizer.process(inputImage)
40 | .addOnSuccessListener { visionText: Text ->
41 | val detectedText: String = visionText.text
42 | if (detectedText.isNotBlank()) {
43 | onDetectedTextUpdated(detectedText)
44 | }
45 | }
46 | .addOnCompleteListener {
47 | continuation.resume(Unit)
48 | }
49 | }
50 |
51 | delay(THROTTLE_TIMEOUT_MS)
52 | }.invokeOnCompletion { exception ->
53 | exception?.printStackTrace()
54 | imageProxy.close()
55 | }
56 | }
57 | }
58 |
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/app/src/main/java/de/yanneckreiss/mlkittutorial/ui/no_permission/NoPermissionScreen.kt:
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1 | package de.yanneckreiss.mlkittutorial.ui.no_permission
2 |
3 | import androidx.compose.foundation.layout.Arrangement
4 | import androidx.compose.foundation.layout.Box
5 | import androidx.compose.foundation.layout.Column
6 | import androidx.compose.foundation.layout.fillMaxSize
7 | import androidx.compose.foundation.layout.padding
8 | import androidx.compose.material.icons.Icons
9 | import androidx.compose.material.icons.filled.Camera
10 | import androidx.compose.material3.Button
11 | import androidx.compose.material3.Icon
12 | import androidx.compose.material3.Text
13 | import androidx.compose.runtime.Composable
14 | import androidx.compose.ui.Alignment
15 | import androidx.compose.ui.Modifier
16 | import androidx.compose.ui.text.style.TextAlign
17 | import androidx.compose.ui.tooling.preview.Preview
18 | import androidx.compose.ui.unit.dp
19 |
20 | @Composable
21 | fun NoPermissionScreen(
22 | onRequestPermission: () -> Unit
23 | ) {
24 |
25 | NoPermissionContent(
26 | onRequestPermission = onRequestPermission
27 | )
28 | }
29 |
30 | @Composable
31 | fun NoPermissionContent(
32 | onRequestPermission: () -> Unit
33 | ) {
34 | Box(
35 | modifier = Modifier.fillMaxSize(),
36 | contentAlignment = Alignment.Center
37 | ) {
38 | Column(
39 | modifier = Modifier
40 | .padding(16.dp)
41 | .fillMaxSize(),
42 | horizontalAlignment = Alignment.CenterHorizontally,
43 | verticalArrangement = Arrangement.spacedBy(8.dp, Alignment.CenterVertically)
44 | ) {
45 | Text(
46 | textAlign = TextAlign.Center,
47 | text = "Please grant the permission to use the camera to use the core functionality of this app."
48 | )
49 | Button(onClick = onRequestPermission) {
50 | Icon(imageVector = Icons.Default.Camera, contentDescription = "Camera")
51 | Text(text = "Grant permission")
52 | }
53 | }
54 | }
55 | }
56 |
57 | @Preview
58 | @Composable
59 | private fun Preview_NoPermissionContent() {
60 | NoPermissionContent(
61 | onRequestPermission = {}
62 | )
63 | }
64 |
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/app/src/main/java/de/yanneckreiss/mlkittutorial/ui/theme/Color.kt:
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1 | package de.yanneckreiss.mlkittutorial.ui.theme
2 |
3 | import androidx.compose.ui.graphics.Color
4 |
5 | val Purple80 = Color(0xFFD0BCFF)
6 | val PurpleGrey80 = Color(0xFFCCC2DC)
7 | val Pink80 = Color(0xFFEFB8C8)
8 |
9 | val Purple40 = Color(0xFF6650a4)
10 | val PurpleGrey40 = Color(0xFF625b71)
11 | val Pink40 = Color(0xFF7D5260)
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/app/src/main/java/de/yanneckreiss/mlkittutorial/ui/theme/Theme.kt:
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1 | package de.yanneckreiss.mlkittutorial.ui.theme
2 |
3 | import android.app.Activity
4 | import android.os.Build
5 | import androidx.compose.foundation.isSystemInDarkTheme
6 | import androidx.compose.material3.MaterialTheme
7 | import androidx.compose.material3.darkColorScheme
8 | import androidx.compose.material3.dynamicDarkColorScheme
9 | import androidx.compose.material3.dynamicLightColorScheme
10 | import androidx.compose.material3.lightColorScheme
11 | import androidx.compose.runtime.Composable
12 | import androidx.compose.runtime.SideEffect
13 | import androidx.compose.ui.graphics.toArgb
14 | import androidx.compose.ui.platform.LocalContext
15 | import androidx.compose.ui.platform.LocalView
16 | import androidx.core.view.WindowCompat
17 |
18 | private val DarkColorScheme = darkColorScheme(
19 | primary = Purple80,
20 | secondary = PurpleGrey80,
21 | tertiary = Pink80
22 | )
23 |
24 | private val LightColorScheme = lightColorScheme(
25 | primary = Purple40,
26 | secondary = PurpleGrey40,
27 | tertiary = Pink40
28 |
29 | /* Other default colors to override
30 | background = Color(0xFFFFFBFE),
31 | surface = Color(0xFFFFFBFE),
32 | onPrimary = Color.White,
33 | onSecondary = Color.White,
34 | onTertiary = Color.White,
35 | onBackground = Color(0xFF1C1B1F),
36 | onSurface = Color(0xFF1C1B1F),
37 | */
38 | )
39 |
40 | @Composable
41 | fun JetpackComposeMLKitTutorialTheme(
42 | darkTheme: Boolean = isSystemInDarkTheme(),
43 | // Dynamic color is available on Android 12+
44 | dynamicColor: Boolean = true,
45 | content: @Composable () -> Unit
46 | ) {
47 | val colorScheme = when {
48 | dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
49 | val context = LocalContext.current
50 | if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
51 | }
52 |
53 | darkTheme -> DarkColorScheme
54 | else -> LightColorScheme
55 | }
56 | val view = LocalView.current
57 | if (!view.isInEditMode) {
58 | SideEffect {
59 | val window = (view.context as Activity).window
60 | window.statusBarColor = colorScheme.primary.toArgb()
61 | WindowCompat.getInsetsController(window, view).isAppearanceLightStatusBars = darkTheme
62 | }
63 | }
64 |
65 | MaterialTheme(
66 | colorScheme = colorScheme,
67 | typography = Typography,
68 | content = content
69 | )
70 | }
71 |
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/app/src/main/java/de/yanneckreiss/mlkittutorial/ui/theme/Type.kt:
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1 | package de.yanneckreiss.mlkittutorial.ui.theme
2 |
3 | import androidx.compose.material3.Typography
4 | import androidx.compose.ui.text.TextStyle
5 | import androidx.compose.ui.text.font.FontFamily
6 | import androidx.compose.ui.text.font.FontWeight
7 | import androidx.compose.ui.unit.sp
8 |
9 | // Set of Material typography styles to start with
10 | val Typography = Typography(
11 | bodyLarge = TextStyle(
12 | fontFamily = FontFamily.Default,
13 | fontWeight = FontWeight.Normal,
14 | fontSize = 16.sp,
15 | lineHeight = 24.sp,
16 | letterSpacing = 0.5.sp
17 | )
18 | /* Other default text styles to override
19 | titleLarge = TextStyle(
20 | fontFamily = FontFamily.Default,
21 | fontWeight = FontWeight.Normal,
22 | fontSize = 22.sp,
23 | lineHeight = 28.sp,
24 | letterSpacing = 0.sp
25 | ),
26 | labelSmall = TextStyle(
27 | fontFamily = FontFamily.Default,
28 | fontWeight = FontWeight.Medium,
29 | fontSize = 11.sp,
30 | lineHeight = 16.sp,
31 | letterSpacing = 0.5.sp
32 | )
33 | */
34 | )
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/app/src/main/res/drawable-v24/ic_launcher_foreground.xml:
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/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml:
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/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml:
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/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp:
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/app/src/main/res/values/colors.xml:
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1 |
2 |
3 | #FFBB86FC
4 | #FF6200EE
5 | #FF3700B3
6 | #FF03DAC5
7 | #FF018786
8 | #FF000000
9 | #FFFFFFFF
10 |
11 |
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/app/src/main/res/values/strings.xml:
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1 |
2 | Jetpack Compose ML-Kit Tutorial
3 |
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/app/src/main/res/values/themes.xml:
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2 |
3 |
4 |
5 |
6 |
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/app/src/main/res/xml/backup_rules.xml:
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1 |
8 |
9 |
13 |
14 |
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/app/src/main/res/xml/data_extraction_rules.xml:
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1 |
6 |
7 |
8 |
12 |
13 |
19 |
20 |
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/build.gradle:
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1 | // Top-level build file where you can add configuration options common to all sub-projects/modules.
2 | buildscript {
3 | ext {
4 | lifecycle_version = "2.6.1"
5 | camerax_version = "1.3.0-beta02"
6 | accompanist_version = '0.31.6-rc'
7 | }
8 | }
9 |
10 | plugins {
11 | id 'com.android.application' version '8.1.0' apply false
12 | id 'com.android.library' version '8.1.0' apply false
13 | id 'org.jetbrains.kotlin.android' version '1.9.0' apply false
14 | }
15 |
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/gradle.properties:
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1 | # Project-wide Gradle settings.
2 | # IDE (e.g. Android Studio) users:
3 | # Gradle settings configured through the IDE *will override*
4 | # any settings specified in this file.
5 | # For more details on how to configure your build environment visit
6 | # http://www.gradle.org/docs/current/userguide/build_environment.html
7 | # Specifies the JVM arguments used for the daemon process.
8 | # The setting is particularly useful for tweaking memory settings.
9 | org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
10 | # When configured, Gradle will run in incubating parallel mode.
11 | # This option should only be used with decoupled projects. More details, visit
12 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
13 | # org.gradle.parallel=true
14 | # AndroidX package structure to make it clearer which packages are bundled with the
15 | # Android operating system, and which are packaged with your app's APK
16 | # https://developer.android.com/topic/libraries/support-library/androidx-rn
17 | android.useAndroidX=true
18 | # Kotlin code style for this project: "official" or "obsolete":
19 | kotlin.code.style=official
20 | # Enables namespacing of each library's R class so that its R class includes only the
21 | # resources declared in the library itself and none from the library's dependencies,
22 | # thereby reducing the size of the R class for that library
23 | android.nonTransitiveRClass=true
24 |
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/gradle/wrapper/gradle-wrapper.jar:
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/gradle/wrapper/gradle-wrapper.properties:
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1 | #Mon Jun 19 17:34:07 CEST 2023
2 | distributionBase=GRADLE_USER_HOME
3 | distributionPath=wrapper/dists
4 | distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-bin.zip
5 | zipStoreBase=GRADLE_USER_HOME
6 | zipStorePath=wrapper/dists
7 |
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/gradlew:
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1 | #!/usr/bin/env sh
2 |
3 | #
4 | # Copyright 2015 the original author or authors.
5 | #
6 | # Licensed under the Apache License, Version 2.0 (the "License");
7 | # you may not use this file except in compliance with the License.
8 | # You may obtain a copy of the License at
9 | #
10 | # https://www.apache.org/licenses/LICENSE-2.0
11 | #
12 | # Unless required by applicable law or agreed to in writing, software
13 | # distributed under the License is distributed on an "AS IS" BASIS,
14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 | # See the License for the specific language governing permissions and
16 | # limitations under the License.
17 | #
18 |
19 | ##############################################################################
20 | ##
21 | ## Gradle start up script for UN*X
22 | ##
23 | ##############################################################################
24 |
25 | # Attempt to set APP_HOME
26 | # Resolve links: $0 may be a link
27 | PRG="$0"
28 | # Need this for relative symlinks.
29 | while [ -h "$PRG" ] ; do
30 | ls=`ls -ld "$PRG"`
31 | link=`expr "$ls" : '.*-> \(.*\)$'`
32 | if expr "$link" : '/.*' > /dev/null; then
33 | PRG="$link"
34 | else
35 | PRG=`dirname "$PRG"`"/$link"
36 | fi
37 | done
38 | SAVED="`pwd`"
39 | cd "`dirname \"$PRG\"`/" >/dev/null
40 | APP_HOME="`pwd -P`"
41 | cd "$SAVED" >/dev/null
42 |
43 | APP_NAME="Gradle"
44 | APP_BASE_NAME=`basename "$0"`
45 |
46 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
47 | DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
48 |
49 | # Use the maximum available, or set MAX_FD != -1 to use that value.
50 | MAX_FD="maximum"
51 |
52 | warn () {
53 | echo "$*"
54 | }
55 |
56 | die () {
57 | echo
58 | echo "$*"
59 | echo
60 | exit 1
61 | }
62 |
63 | # OS specific support (must be 'true' or 'false').
64 | cygwin=false
65 | msys=false
66 | darwin=false
67 | nonstop=false
68 | case "`uname`" in
69 | CYGWIN* )
70 | cygwin=true
71 | ;;
72 | Darwin* )
73 | darwin=true
74 | ;;
75 | MINGW* )
76 | msys=true
77 | ;;
78 | NONSTOP* )
79 | nonstop=true
80 | ;;
81 | esac
82 |
83 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
84 |
85 |
86 | # Determine the Java command to use to start the JVM.
87 | if [ -n "$JAVA_HOME" ] ; then
88 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
89 | # IBM's JDK on AIX uses strange locations for the executables
90 | JAVACMD="$JAVA_HOME/jre/sh/java"
91 | else
92 | JAVACMD="$JAVA_HOME/bin/java"
93 | fi
94 | if [ ! -x "$JAVACMD" ] ; then
95 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
96 |
97 | Please set the JAVA_HOME variable in your environment to match the
98 | location of your Java installation."
99 | fi
100 | else
101 | JAVACMD="java"
102 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
103 |
104 | Please set the JAVA_HOME variable in your environment to match the
105 | location of your Java installation."
106 | fi
107 |
108 | # Increase the maximum file descriptors if we can.
109 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
110 | MAX_FD_LIMIT=`ulimit -H -n`
111 | if [ $? -eq 0 ] ; then
112 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
113 | MAX_FD="$MAX_FD_LIMIT"
114 | fi
115 | ulimit -n $MAX_FD
116 | if [ $? -ne 0 ] ; then
117 | warn "Could not set maximum file descriptor limit: $MAX_FD"
118 | fi
119 | else
120 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
121 | fi
122 | fi
123 |
124 | # For Darwin, add options to specify how the application appears in the dock
125 | if $darwin; then
126 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
127 | fi
128 |
129 | # For Cygwin or MSYS, switch paths to Windows format before running java
130 | if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
131 | APP_HOME=`cygpath --path --mixed "$APP_HOME"`
132 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
133 |
134 | JAVACMD=`cygpath --unix "$JAVACMD"`
135 |
136 | # We build the pattern for arguments to be converted via cygpath
137 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
138 | SEP=""
139 | for dir in $ROOTDIRSRAW ; do
140 | ROOTDIRS="$ROOTDIRS$SEP$dir"
141 | SEP="|"
142 | done
143 | OURCYGPATTERN="(^($ROOTDIRS))"
144 | # Add a user-defined pattern to the cygpath arguments
145 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then
146 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
147 | fi
148 | # Now convert the arguments - kludge to limit ourselves to /bin/sh
149 | i=0
150 | for arg in "$@" ; do
151 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
152 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
153 |
154 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
155 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
156 | else
157 | eval `echo args$i`="\"$arg\""
158 | fi
159 | i=`expr $i + 1`
160 | done
161 | case $i in
162 | 0) set -- ;;
163 | 1) set -- "$args0" ;;
164 | 2) set -- "$args0" "$args1" ;;
165 | 3) set -- "$args0" "$args1" "$args2" ;;
166 | 4) set -- "$args0" "$args1" "$args2" "$args3" ;;
167 | 5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
168 | 6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
169 | 7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
170 | 8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
171 | 9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
172 | esac
173 | fi
174 |
175 | # Escape application args
176 | save () {
177 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
178 | echo " "
179 | }
180 | APP_ARGS=`save "$@"`
181 |
182 | # Collect all arguments for the java command, following the shell quoting and substitution rules
183 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
184 |
185 | exec "$JAVACMD" "$@"
186 |
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/gradlew.bat:
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1 | @rem
2 | @rem Copyright 2015 the original author or authors.
3 | @rem
4 | @rem Licensed under the Apache License, Version 2.0 (the "License");
5 | @rem you may not use this file except in compliance with the License.
6 | @rem You may obtain a copy of the License at
7 | @rem
8 | @rem https://www.apache.org/licenses/LICENSE-2.0
9 | @rem
10 | @rem Unless required by applicable law or agreed to in writing, software
11 | @rem distributed under the License is distributed on an "AS IS" BASIS,
12 | @rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | @rem See the License for the specific language governing permissions and
14 | @rem limitations under the License.
15 | @rem
16 |
17 | @if "%DEBUG%" == "" @echo off
18 | @rem ##########################################################################
19 | @rem
20 | @rem Gradle startup script for Windows
21 | @rem
22 | @rem ##########################################################################
23 |
24 | @rem Set local scope for the variables with windows NT shell
25 | if "%OS%"=="Windows_NT" setlocal
26 |
27 | set DIRNAME=%~dp0
28 | if "%DIRNAME%" == "" set DIRNAME=.
29 | set APP_BASE_NAME=%~n0
30 | set APP_HOME=%DIRNAME%
31 |
32 | @rem Resolve any "." and ".." in APP_HOME to make it shorter.
33 | for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
34 |
35 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
36 | set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
37 |
38 | @rem Find java.exe
39 | if defined JAVA_HOME goto findJavaFromJavaHome
40 |
41 | set JAVA_EXE=java.exe
42 | %JAVA_EXE% -version >NUL 2>&1
43 | if "%ERRORLEVEL%" == "0" goto execute
44 |
45 | echo.
46 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
47 | echo.
48 | echo Please set the JAVA_HOME variable in your environment to match the
49 | echo location of your Java installation.
50 |
51 | goto fail
52 |
53 | :findJavaFromJavaHome
54 | set JAVA_HOME=%JAVA_HOME:"=%
55 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
56 |
57 | if exist "%JAVA_EXE%" goto execute
58 |
59 | echo.
60 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
61 | echo.
62 | echo Please set the JAVA_HOME variable in your environment to match the
63 | echo location of your Java installation.
64 |
65 | goto fail
66 |
67 | :execute
68 | @rem Setup the command line
69 |
70 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
71 |
72 |
73 | @rem Execute Gradle
74 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
75 |
76 | :end
77 | @rem End local scope for the variables with windows NT shell
78 | if "%ERRORLEVEL%"=="0" goto mainEnd
79 |
80 | :fail
81 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
82 | rem the _cmd.exe /c_ return code!
83 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
84 | exit /b 1
85 |
86 | :mainEnd
87 | if "%OS%"=="Windows_NT" endlocal
88 |
89 | :omega
90 |
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/settings.gradle:
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1 | pluginManagement {
2 | repositories {
3 | google()
4 | mavenCentral()
5 | gradlePluginPortal()
6 | }
7 | }
8 | dependencyResolutionManagement {
9 | repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
10 | repositories {
11 | google()
12 | mavenCentral()
13 | }
14 | }
15 | rootProject.name = "Jetpack Compose CameraX ML Kit Tutorial"
16 | include ':app'
17 |
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