dagger-2 – Page 6 – Tarik Billa

Dagger: IllegalArgumentException: No injector factory bound for Class

February 24, 2023 by Tarik

I believe you have forgot to put @ContributesAndroidInjector annotation: @Module public abstract class ActivityModule { @ContributesAndroidInjector abstract ProductListActivity contributeProductListActivity(); @ContributesAndroidInjector abstract ProductDetailsActivity contributeProductDetailsActivity(); } And include ViewModelModule within AppModule: @Module(includes = ViewModelModule.class) class AppModule { … } See this code that you have wrote: @Provides @Singleton ProductListRepository provideProductListRepository(ProductListRepository repository) { return repository; } What do … Read more

Error:Execution failed for task ‘:app:kaptDebugKotlin’

February 19, 2023 by Tarik

Run your application with ./gradlew clean build command to see what’s exactly wrong with your code. Just paste it into the Terminal in Android Studio.

Dagger not generating components for /test class

February 13, 2023 by Tarik

You need to add following to your build.gradle file for instrumentation test: androidTestApt ‘com.google.dagger:dagger-compiler:<version>’ or for JUnit test: testApt ‘com.google.dagger:dagger-compiler:<version>’ This is required to generate Dagger code for your test components. EDIT: If you are using jack tool chain then add following for android test: androidTestAnnotationProcessor ‘com.google.dagger:dagger-compiler:<version>’ for JUnit tests: testAnnotationProcessor ‘com.google.dagger:dagger-compiler:<version>’ EDIT: In case … Read more

Set dynamic base url using Retrofit 2.0 and Dagger 2

January 31, 2023 by Tarik

Support for this use-case was removed in Retrofit2. The recommendation is to use an OkHttp interceptor instead. HostSelectionInterceptor made by swankjesse import java.io.IOException; import okhttp3.HttpUrl; import okhttp3.Interceptor; import okhttp3.OkHttpClient; import okhttp3.Request; /** An interceptor that allows runtime changes to the URL hostname. */ public final class HostSelectionInterceptor implements Interceptor { private volatile String host; public … Read more

Why use/develop Guice, when You have Spring and Dagger? [closed]

January 30, 2023 by Tarik

It’s important to acknowledge that Dagger was created after Guice, by one of Guice’s creators (“Crazy Bob” Lee) who had moved to Square: Rod Johnson originally released Spring in October 2002 with his book Expert One-on-One J2EE Design and Development; Spring was then released publicly on the Apache license in June 2003 and as v1.0 … Read more

Dagger 2.2 component builder module method deprecated

January 29, 2023 by Tarik

You should read the description of why it is deprecated. If you are using an IDE like IntelliJ or Android Studio you can just select the method and hit Control + Q on Windows to read the Javadoc including the deprecation notice. The Javadoc reads: @deprecated This module is declared, but an instance is not … Read more

Dagger- Should we create each component and module for each Activity/ Fragment

January 25, 2023 by Tarik

Declaring a separate module for each Activity is not a good idea at all. Declaring separate component for each Activity is even worse. The reasoning behind this is very simple – you don’t really need all these module/components (as you have already seen by yourself). However, having just one component that is tied to Application‘s … Read more

How to set up DAGGER dependency injection from scratch in Android project?

January 2, 2023 by Tarik

Guide for Dagger 2.x (Revised Edition 6): The steps are the following: 1.) add Dagger to your build.gradle files: top level build.gradle: . // Top-level build file where you can add configuration options common to all sub-projects/modules. buildscript { repositories { jcenter() } dependencies { classpath ‘com.android.tools.build:gradle:2.2.0’ classpath ‘com.neenbedankt.gradle.plugins:android-apt:1.8’ //added apt for source code generation … Read more

Error : Program type already present: android.support.design.widget.CoordinatorLayout$Behavior

December 12, 2022 by Tarik

It worked when I downgrade the support appcompat gradle dependency, like follwing : implementation ‘com.android.support:appcompat-v7:27.0.2’ previously it was implementation ‘com.android.support:appcompat-v7:27.1.0’ OR Also this can be fixed by just adding support design dependency of version 27.1.0 or above to your app level build.gradle as following : implementation ‘com.android.support:design:27.1.0’

What determines the lifecycle of a component (object graph) in Dagger 2?

December 1, 2022 by Tarik

As for your question What determines the lifecycle of a component (object graph) in Dagger 2? The short answer is you determine it. Your components can be given a scope, such as @Scope @Retention(RetentionPolicy.RUNTIME) public @interface ApplicationScope { } @Scope @Retention(RetentionPolicy.RUNTIME) public @interface ActivityScope { } These are useful for you for two things: Validation … Read more