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Dagger2 is not generating any component classes in android studio i know its a known problem while i have gone through almost all ways to implement in my android studio and have tried on various tutorials but every time i got struck here, it fails to build the daggercomponent class . I have also tried to rebuild ,clean gradles and invalidate caches but it does not help . Here is my one of sample project build.gradle
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
}
}
apply plugin: 'com.android.application'
apply plugin: 'com.neenbedankt.android-apt'
android {
compileSdkVersion 25
buildToolsVersion "25.0.0"
defaultConfig {
applicationId "com.example.g.daggerillkillu"
minSdkVersion 15
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
repositories{
maven{url "https://jetpack.io"}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.1.0'
testCompile 'junit:junit:4.12'
compile 'com.google.dagger:dagger:2.0.2'
apt 'com.google.dagger:dagger-compiler:2.0.2'
provided 'javax.annotation:jsr250-api:1.0'
}
vehiclemodule.java
@Module
public class vehiclemodule {
@Provides
@Singleton
Motor providesMotor(){
return new Motor();
}
@Provides
@Singleton
Vehicle provideVehicle(){
return new Vehicle(new Motor());
}
}
vehicleComponent.java
@Singleton
@Component(modules = {vehiclemodule.class})
public interface VehicleComponent {
Vehicle provideVehicle();
}
Is there any problem in the android studio or i am doing something wrong?
693
Defining dependencies (object consumers) You use the @Inject annotation to define a dependency. If you annotate a constructor with @Inject , Dagger 2 can also use an instance of this object to fulfill dependencies. This was done to avoid the definition of lots of @Provides methods for these objects.
Dagger 2 is a compile-time android dependency injection framework that uses Java Specification Request 330 and Annotations. Some of the basic annotations that are used in dagger 2 are: @Module This annotation is used over the class which is used to construct objects and provide the dependencies.
Dagger 2 is the first to implement the full stack with generated code. The guiding principle is to generate code that mimics the code that a user might have hand-written to ensure that dependency injection is as simple, traceable and performant as it can be.
Dagger automatically generates code that mimics the code you would otherwise have hand-written. Because the code is generated at compile time, it's traceable and more performant than other reflection-based solutions such as Guice. Note: Use Hilt for dependency injection on Android.
Is there any problem in the android studio or i am doing something wrong?
If nothing is being generated then you most likely do not have annotation processing enabled:
144
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