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Dagger and SQLiteAssetHelper


Dagger and SQLiteAssetHelper

By : user2951648
Date : November 18 2020, 11:13 AM
it should still fix some issue Trying to use dagger to create a single instance of my database helper so I can access it easier from the various fragments in my app. Everytime I launch the app though it closes with the following error: , Every fragment should be listed in the injects
code :
injects = {
    BaseApplication.class,
    MainActivity.class,
    MainFragment.class,
    // other fragments
}
public void onCreate() {
    objectGraph = // obtain ObjectGraph from somewhere e.g. Application
    objectGraph.inject(this);
}
@Provides @Singleton
RecipeReaderHelper provideRecipeReaderHelper() {
    return new RecipeReaderHelper(appContext);
}
@Provides
Context provideContext() {
    return appContext;
}


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How can I build a Dagger-based Android library without forcing consuming applications to use Dagger?

How can I build a Dagger-based Android library without forcing consuming applications to use Dagger?


By : Lindon Knight
Date : March 29 2020, 07:55 AM
Does that help A library is almost like an Application (when it comes to Dagger). Yes, you don’t have an application object, but you don’t really need one.
As a consumer of your Library, I expect it to be simple to use, so I don’t want to know what dagger is at all (or if you internally use it).
code :
public class DaggerInjector {

    private static YourComponent component;

    private DaggerInjector() {
        super();
    }

    public static YourComponent getComponent() {
        return component;
    }

    public static YourComponent buildComponent(Context context) {
        component = DaggerYourComponent
                .builder()
                .yourModule(new YourModule(context))
                .build();
        return component;
    }
}
@Module
public class YourModule {

    private Context context;

    public YourModule(Context context) {
        this.context = context;
    }

    @Provides
    @Singleton
    final Context providesContext() {
        return context;
    }
}
DaggerInjector.buildComponent(context);
@Provides
SomeObject providesSomeObject() {
    return new SomeObject();
}

// THIS “Context” here is automatically injected by Dagger thanks to the above.
@Provides
@Singleton
SomeOtherObject providesSomeOtherObject(Context context) {
    return new SomeOtherObject(context); //assume this one needs it
}
public class AnObjectThatWantsToInjectStuff {

    @Inject
    SomeObject someObject;
    @Inject 
    SomeOtherObject someOtherObject;

    public AnObjectThatWantsToInjectStuff() {
          super();
          DaggerInjector.getComponent().inject(this);

          // you can now use someObject and someOtherObject
    }
}
error: [Dagger/MissingBinding] [dagger.android.AndroidInjector.inject(T)] Dagger

error: [Dagger/MissingBinding] [dagger.android.AndroidInjector.inject(T)] Dagger


By : Srik
Date : March 29 2020, 07:55 AM
hop of those help? You use @inject to annotate the constructor of LoginFragment, when a new instance is requested, Dagger constructs instances of your LoginFragment class and satisfies their dependencies (like the mPresenter field). Because MainActivitySubcomponent doesn’t access LoginFragmentModule, Dagger gives you an error that can not provide LoginContract.Presenter. instead of using constructor injection, if you use another approach for providing LoginFragment for MainActivity, the problem will be solved. You should remove @inject from LoginFragment constructor and create a module to provide it like the following example:
code :
@Module
public class MainModule {

    @Provides
    public static LoginFragment provideLoginFragment() {
        return LoginFragment.newInstance("param1", "param2");
    }

}
Dagger can't inject a parameter of type interface on a ViewModel's constructor using Dagger Android

Dagger can't inject a parameter of type interface on a ViewModel's constructor using Dagger Android


By : ShazbotTKC
Date : March 29 2020, 07:55 AM
wish of those help Solved the issue. Using a generic view model factory found in this Github issue:
https://github.com/google/dagger/issues/1273#issuecomment-447997439
Error:(24, 0) Could not find method annotationProcessor() for arguments [com.google.dagger:dagger-compiler:2.10]

Error:(24, 0) Could not find method annotationProcessor() for arguments [com.google.dagger:dagger-compiler:2.10]


By : nsreddy
Date : March 29 2020, 07:55 AM
wish of those help You can't use the annotationProcessor in java-library, you need to use the apt but for that you need to add the following to the build.gradle:
code :
buildscript {
    repositories {
        maven {
            url "https://plugins.gradle.org/m2/"
        }
    }
    dependencies {
        classpath "net.ltgt.gradle:gradle-apt-plugin:0.10"
    }
}

apply plugin: 'java-library'
apply plugin: "net.ltgt.apt"
apt 'com.google.dagger:dagger-compiler:2.10'
Kotliin Dagger Field Injection in ViewModel Throws Dagger/Binding Exception

Kotliin Dagger Field Injection in ViewModel Throws Dagger/Binding Exception


By : Albert Vallespí Capd
Date : October 07 2020, 09:00 PM
it helps some times I have followed this tutorial in order to do DI in my viewmodels. But I currently am stuck. , The error message indicates that the following code is wrong:
code :
fun providesHomeViewModelFactory(providerMap: Map<Class<out ViewModel>, Provider<ViewModel>>): HomeViewModelFactory {
    return HomeViewModelFactory(providerMap)
}
fun providesHomeViewModelFactory(providerMap: Map<Class<out ViewModel>, @JvmSuppressWildcards Provider<ViewModel>>): HomeViewModelFactory {
    return HomeViewModelFactory(providerMap)
}
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