Develop Reference

How to use Hilt in Jetpack Compose?

I'm trying to create a school project with Jetpack Compose and I try to use Hilt. These are the dependencies I'm using:
dependencies {
implementation platform("androidx.compose:compose-bom:2023.01.00")
implementation "androidx.compose.material:material"
implementation "com.google.dagger:hilt-android:2.45"
kapt "com.google.dagger:hilt-android-compiler:2.45"
}
But when I try to compile the app I get:
Unresolved reference: compose
I read here, that I should implement androidx.hilt:hilt-navigation-compose why? I'm not using any navigation. It's a simple app with one activity that contains a LazyColumn with three names. How to solve that?

Make sure that your added these dependencies in your app level build.gradle file:
plugins {
id 'com.android.application'
id 'org.jetbrains.kotlin.android'
id 'com.google.dagger.hilt.android'
id 'kotlin-kapt'
}
android {
namespace 'garousi.dev.stackoverflow'
compileSdk 33
defaultConfig {
applicationId "garousi.dev.stackoverflow"
minSdk 21
targetSdk 33
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
vectorDrawables {
useSupportLibrary true
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
}
buildFeatures {
compose true
}
composeOptions {
kotlinCompilerExtensionVersion '1.4.2'
}
packagingOptions {
resources {
excludes += '/META-INF/{AL2.0,LGPL2.1}'
}
}
}
dependencies {
implementation 'androidx.core:core-ktx:1.9.0'
implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.5.1'
implementation 'androidx.activity:activity-compose:1.6.1'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.5'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
def composeBom = platform('androidx.compose:compose-bom:2023.01.00')
implementation composeBom
androidTestImplementation composeBom
implementation "androidx.compose.ui:ui"
implementation "androidx.compose.ui:ui-tooling-preview"
implementation 'androidx.compose.material:material'
debugImplementation "androidx.compose.ui:ui-tooling"
androidTestImplementation "androidx.compose.ui:ui-test-junit4"
debugImplementation "androidx.compose.ui:ui-test-manifest"
implementation 'com.google.dagger:hilt-android:2.45'
kapt 'com.google.dagger:hilt-compiler:2.45'
implementation "androidx.navigation:navigation-compose:2.5.3"
}
kapt {
correctErrorTypes true
}
your project level build.gradle file:
buildscript {
}// Top-level build file where you can add configuration options common to all sub-projects/modules.
plugins {
id 'com.android.application' version '7.4.0' apply false
id 'com.android.library' version '7.4.0' apply false
id 'org.jetbrains.kotlin.android' version '1.8.10' apply false
id 'com.google.dagger.hilt.android' version '2.45' apply false
}

android - Failed to add navigation dependency

I am trying to add navigation library in android studio but fails to add here is my build.gradle(app)
plugins {
id 'com.android.application'
}
android {
compileSdk 33
defaultConfig {
applicationId "com.example.practice_8"
minSdk 21
targetSdk 32
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
buildFeatures {
viewBinding true
}
}
dependencies {
implementation 'androidx.appcompat:appcompat:1.4.2'
implementation 'com.google.android.material:material:1.6.1'
implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.5.1'
implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.5.1'
implementation 'androidx.navigation:navigation-fragment:2.5.1'
implementation 'androidx.navigation:navigation-ui:2.5.1'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}

Try this
In your app/gradle, add
plugins {
id 'com.android.application'
id 'androidx.navigation.safeargs'
}
def nav_version = "2.5.1"
inside dependency{ } add
// Kotlin
implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
implementation "androidx.navigation:navigation-ui-ktx:$nav_version"
in project/gradle add
buildscript {
repositories {
google()
}
dependencies {
def nav_version = "2.5.1"
classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"
}
}
and sync your gradle
Here is reference
Android Nav

Error Message: Cannot access class 'androidx.compose.ui.Alignment.Horizontal'. Check your module classpath for missing or conflicting dependencies

I am making a QR Scanner app using Android Jetpack Compose.
The code is giving error message like:
Cannot access class 'androidx.compose.ui.Alignment.Horizontal'. Check your module classpath for missing or conflicting dependencies
Here is my build.gradle file for App Module:
plugins {
id 'com.android.application'
id 'kotlin-android'
}
android {
compileSdk 31
defaultConfig {
applicationId "com.plcoding.qrcodescannercompose"
minSdk 26
targetSdk 31
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
vectorDrawables {
useSupportLibrary true
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
useIR = true
}
buildFeatures {
compose true
}
composeOptions {
kotlinCompilerExtensionVersion compose_version
kotlinCompilerVersion '1.5.21'
}
packagingOptions {
resources {
excludes += '/META-INF/{AL2.0,LGPL2.1}'
}
}
}
dependencies {
implementation 'androidx.core:core-ktx:1.7.0'
implementation 'androidx.appcompat:appcompat:1.4.1'
implementation 'com.google.android.material:material:1.5.0'
implementation "androidx.compose.ui:ui:$compose_version"
implementation "androidx.compose.material:material:$compose_version"
implementation "androidx.compose.ui:ui-tooling-preview:$compose_version"
implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.4.0'
implementation 'androidx.activity:activity-compose:1.4.0'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_version"
debugImplementation "androidx.compose.ui:ui-tooling:$compose_version"
// Activity Compose
implementation "androidx.activity:activity-compose:$compose_version"
// CameraX
implementation "androidx.camera:camera-camera2:1.0.2"
implementation "androidx.camera:camera-lifecycle:1.0.2"
implementation "androidx.camera:camera-view:1.1.0-beta01"
// Zxing
implementation 'com.google.zxing:core:3.3.3'
}
In case you want to see the code which is generating error:

Databinding in recyclerview using kotlin causing issue

Here is my app-level gradle file
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
android {
compileSdkVersion 31
buildToolsVersion "30.0.3"
defaultConfig {
applicationId "com.app.myapplication"
minSdkVersion 19
targetSdkVersion 31
versionCode 1
versionName "1.0"
multiDexEnabled true
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
}
buildFeatures {
dataBinding = true
}
}
kapt {
generateStubs = true
correctErrorTypes = true
}
sourceSets {
main {
java {
srcDir "${buildDir}/generated/source/kapt/main"
}
}
test {
java {
srcDir 'src/test/java'
}
}
}
dependencies {
implementation 'androidx.core:core-ktx:1.7.0'
kapt "com.android.databinding:compiler:3.2.0-alpha10"
implementation 'androidx.multidex:multidex:2.0.1'
implementation 'androidx.appcompat:appcompat:1.3.1'
implementation 'com.google.android.material:material:1.4.0'
implementation 'androidx.constraintlayout:constraintlayout:2.1.1'
implementation 'android.arch.lifecycle:extensions:1.1.1'
implementation 'com.squareup.retrofit2:adapter-rxjava2:2.6.1'
implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
implementation 'com.squareup.okhttp3:logging-interceptor:4.8.0'
implementation 'com.squareup.retrofit2:converter-scalars:2.1.0'
//glide
implementation 'com.github.bumptech.glide:glide:4.11.0'
kapt 'com.github.bumptech.glide:compiler:4.11.0'
implementation 'android.arch.lifecycle:extensions:1.1.1'
implementation 'android.arch.paging:runtime:1.0.1'
testImplementation 'junit:junit:4.+'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}
this is my main gradle file
buildscript {
ext.kotlin_version = "1.4.10"
repositories {
google()
jcenter()
}
dependencies {
classpath "com.android.tools.build:gradle:4.1.3"
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
I am trying to implement databinding in recyclerview using kotlin. But it is giving me runtime error
Execution failed for task ':app:kaptDebugKotlin'.
A failure occurred while executing org.jetbrains.kotlin.gradle.internal.KaptExecution
java.lang.reflect.InvocationTargetException (no error message)
Anyone has faced the same error? I have searched and gone through many links related to this error but all states the use of room library which I am not using and still getting this error.
Any help is much appreicated.
Thanks

Instead of
buildFeatures {
dataBinding = true
}
Try this
buildFeatures {
dataBinding true //<--- for binding the data
viewBinding true //<-- for binding the view
}

I solved this error after updating my
Android studio to
Android Studio Arctic Fox 2020.3.1 Patch 3
and also updated
gradle version to 7.0.3
and
kotlin plugin update to 1.5.20.
Basically I updated all my resources and the error was solved.
Updated gradle files
app-level gradle
plugins {
id 'com.android.application'
id 'kotlin-android'
}
android {
compileSdkVersion 31
buildToolsVersion "30.0.3"
defaultConfig {
applicationId "com.app.navigationdemoapp"
minSdkVersion 19
targetSdkVersion 31
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
}
}
dependencies {
implementation "androidx.navigation:navigation-fragment-ktx:2.4.0-beta02"
implementation "androidx.navigation:navigation-ui-ktx:2.4.0-beta02"
implementation 'androidx.core:core-ktx:1.7.0'
implementation 'androidx.appcompat:appcompat:1.4.0'
implementation 'com.google.android.material:material:1.4.0'
implementation 'androidx.constraintlayout:constraintlayout:2.1.2'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}
project level gradle
buildscript {
ext.kotlin_version = "1.5.20"
repositories {
google()
mavenCentral()
}
dependencies {
classpath "com.android.tools.build:gradle:7.0.3"
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
allprojects {
repositories {
google()
mavenCentral()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

Jetpack Compose dev06 setContent() doesn't work?

While updating to dev06 and ran the app I got the following error:
java.lang.NoSuchMethodError: No static method setContent(Landroid/app/Activity;Lkotlin/jvm/functions/Function0;)Landroidx/compose/Composition; in class Landroidx/ui/core/WrapperKt; or its super classes (declaration of 'androidx.ui.core.WrapperKt' appears in /data/app/tt.reducto.composesample-BYNjMDWbVhiprnPCNJw0LA==/base.apk)

If you're coming from dev05, dev04 (or less), there's a migration needed.
UPDATE: This logic works up to Dev09. BETA Release is currently available.
I manage to make it work. You need to do the following:
Android Studio 4.1 Canary 2 or +
gradle-wrapper.properties:
distributionUrl=https\://services.gradle.org/distributions/gradle-6.2.1-all.zip
build.gradle: (project level)
buildscript {
ext.kotlin_version = "1.3.70"
repositories {
google()
jcenter()
}
dependencies {
classpath "com.android.tools.build:gradle:4.1.0-alpha02"
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
build.gradle (app level):
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
android {
compileSdkVersion 29
defaultConfig {
applicationId "com.package.name"
minSdkVersion 21
targetSdkVersion 29
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
composeOptions {
kotlinCompilerExtensionVersion = "0.1.0-dev06" // THIS ONE is important
}
buildFeatures {
compose true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
}
}
dependencies {
def compose_version = "0.1.0-dev06"
implementation fileTree(dir: "libs", include: ["*.jar"])
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
implementation 'androidx.core:core-ktx:1.2.0'
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation "androidx.ui:ui-foundation:$compose_version"
implementation "androidx.ui:ui-framework:$compose_version"
implementation "androidx.ui:ui-tooling:$compose_version"
implementation "androidx.ui:ui-layout:$compose_version"
implementation "androidx.ui:ui-material:$compose_version"
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test.ext:junit:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
}
Once you get all that done, run your code and you'd be good to go.

For Kotlin DSL
kotlinOptions {
jvmTarget = V.JVM.Kotlin.target
useIR = true
}
buildFeatures {
// Enables Jetpack Compose for this module
compose = true
}
composeOptions {
kotlinCompilerExtensionVersion = "1.0.0-beta03"
}

Make sure to set compose true inside your gradle file..
for build.gradle.kts
buildFeatures {
compose = true
}
for traditional build.gradle
buildFeatures {
compose true
}

In you apps build.gradle app
buildFeatures {
compose true
}
composeOptions {
kotlinCompilerExtensionVersion compose_version
kotlinCompilerVersion kotlin_compiler_verion
}

I had the same error with unnecessary dependency in buildSrc/build.gradle.kts
dependencies {
implementation("com.android.tools.build:gradle:7.0.0-beta02")
}
After removing this the error is gone.
compose version 1.0.0-beta07

I got the same error while used Compose dev07. I fixed the issue by giving the below code in build.gradle (app level):
composeOptions {
kotlinCompilerExtensionVersion = "0.1.0-dev07"
}
For more info please check here

For Kotlin DSL(build.gradle.kts):
android {
buildFeatures {
compose = true
composeOptions.kotlinCompilerExtensionVersion = Depends.Versions.composeVersion //"1.0.0-alpha08"
composeOptions.kotlinCompilerVersion = Depends.Versions.kotlinVersion //"1.4.20"
}
gradle-wrapper.properties file ->
distributionUrl=https://services.gradle.org/distributions/gradle-6.7.1-bin.zip