dagger-2

问题 I'm starting to think in mvp, dagger should not be used in the presenter. The usual way to construct dagger is using a global component and have subcomponents for scoping the graph. This global component will take an applicationContext as a parameter on creating the appmodule.java class usually. Having the application context given makes life easier. That's all fine but if I use a module from the global component or even a subcomponent, the context should be passed in. So that means if I

问题 I'm having some troubles while I want to move some Dagger 2 boilerplate code in each activity to a BaseActivity. BaseActivity extends AppCompatActivity I have multiples activities, like: ActivityA extends BaseActivity implements InterfaceA; ActivityB extends BaseActivity implements InterfaceB; ... In each activity I have a methods like this (where X is A, B, C, ... for each activity): public void initActivity() { ComponentX compX; ... compX = appComponent.plus(new ModuleX(this)); // this ==

问题 I'm studying Dagger 2 so I would like to understand some basic things. I have the following code: @Module public class MainModule { @Provides public Presenter provideMainActivityPresenter(Model model){ return new MainPresenter(model); } @Provides public Model provideMainModel(){ return new MainModel(); } } and my MainPresenter class looks like this: public class MainPresenter implements Presenter { @Nullable private ViewImpl view; private Model model; public MainPresenter(Model model) { this

问题 Hi i am new to dagger 2 and trying to inject an instance of sharedPreference inside my MyActivity class below: class MyApplication : Application() { companion object { @JvmStatic lateinit var applicationComponent : ApplicationComponent } override fun onCreate() { super.onCreate() applicationComponent = DaggerApplicationComponent.builder().androidModule(AndroidModule(this)).build() } } Here is the component and modules @Singleton @Component(modules = arrayOf(AndroidModule::class)) interface

问题 I'm experimenting with Dagger 2 and I'm just testing things out to understand the framework. I'm having a ApplicationComponent that needs to be a singleton for the whole app so I defined it like this: @Component(modules = {ApplicationModule.class}) @Singleton public interface ApplicationComponent { Context provideContext(); } With module: @Module public class ApplicationModule { private Application appContext; public ApplicationModule(Application appContext) { this.appContext = appContext; }

问题 I want to know how to inject Presenter in activity using code Following are details Following is error message: Error:(12, 46) error: cannot find symbol class DaggerCategoryPresenterComponent Error:(9, 46) error: cannot find symbol class DaggerNetComponent Error:(18, 10) error: [Dagger/MissingBinding] com.headytest.android.category_listing.CategoryContract.CategoryPresenter cannot be provided without an @Provides-annotated method. com.headytest.android.category_listing.CategoryContract

问题 I'm trying to find out why the Google Play Services is crashing with a nullpointerexception after the application is coming back from a background state such as device sleep or toggle other program. Sometimes Google Play Services gives the crash popup on application start. So I assume the problem lies somewhere on the path to the service since there is where the threading occurs with rxjava. Note: I Inject GoogleApiClient in both MainActivity (field injection) and in GoogleApiService

问题 I am failing to understand the difference between telling a component what are his modules and telling the component what are its component dependencies. For example: @Module public class ModuleA { @Provides DependencyA providesDependencyA() { return new DependencyA(); } } @Module public class ModuleB { @Provides DependencyB providesDependencyB() { return new DependencyB(); } } @Component (modules = {ModuleA.class}) public interface ComponentA { DependencyA getDependencyA(); } what is the

问题 Having the SharedPreferences provided from one dagger2 module, in another dagger2 module would like to use it, how to do it? the code below seems not working. /** the component */ @Singleton @Component(modules = arrayOf(DataManagerModule::class, AnotherModule::class)) interface DataManagerComponent { fun getDataManager() : DataManager fun getSharedPreferences() : SharedPreferences } /** the module 1 */ @Module class DataManagerModule(@ApplicationContext private val appContext: Context) {

问题 Why should use static modifier before the provide method? Even though I remove the static modifier, dagger2 works correctly. @Provides static Pump providePump(Thermosiphon pump) { return pump; } 回答1: Both styles work; whether you keep the method static is entirely up to you and your normal "should this be a static method" judgment in plain old Java. Here, pump doesn't have any use for a module instance, so the method can easily be static. Static method calls are faster, particularly in