dagger-2

问题 I have a class which i inject into a ViewModel + ViewModel factory, when initialise the view model in the onCreate method in activity, its says the value being passed through is not initialised. Below is my code I am quite new to Kotlin so have tried debugging but am stuck on this issue. Here is MainActivity code: class MainActivity: AppCompatActivity(), RepoSelectedListener { @Inject lateinit var viewModel: MainActivityListViewModel lateinit var lifecycleOwner: LifecycleOwner lateinit var

问题 I have a class which i inject into a ViewModel + ViewModel factory, when initialise the view model in the onCreate method in activity, its says the value being passed through is not initialised. Below is my code I am quite new to Kotlin so have tried debugging but am stuck on this issue. Here is MainActivity code: class MainActivity: AppCompatActivity(), RepoSelectedListener { @Inject lateinit var viewModel: MainActivityListViewModel lateinit var lifecycleOwner: LifecycleOwner lateinit var

问题 My ViewModelFactory : class ViewModelFactory @Inject constructor( private val viewModelMap: MutableMap<Class<out ViewModel>, ViewModelAssistedFactory<out ViewModel>>, owner: SavedStateRegistryOwner, defaultArgs: Bundle? ) : AbstractSavedStateViewModelFactory(owner, defaultArgs) { @Throws(IllegalStateException::class) @Suppress("UNCHECKED_CAST") override fun <T : ViewModel?> create(key: String, modelClass: Class<T>, handle: SavedStateHandle): T { return viewModelMap[modelClass]?.create(handle)

问题 My ViewModelFactory : class ViewModelFactory @Inject constructor( private val viewModelMap: MutableMap<Class<out ViewModel>, ViewModelAssistedFactory<out ViewModel>>, owner: SavedStateRegistryOwner, defaultArgs: Bundle? ) : AbstractSavedStateViewModelFactory(owner, defaultArgs) { @Throws(IllegalStateException::class) @Suppress("UNCHECKED_CAST") override fun <T : ViewModel?> create(key: String, modelClass: Class<T>, handle: SavedStateHandle): T { return viewModelMap[modelClass]?.create(handle)

问题 I am migrating to the new dagger android 2.11 All set up based on the Google blueprint :MVP-Dagger.but I am having this error : Error:(22, 57) error: @Binds methods must have only one parameter whose type is assignable to the return type Here in this line : @ActivityScoped @Binds abstract PresenterFactory<MainContract.Presenter> providePresenterFactory(MainPresenter presenter); The presenter : @ActivityScoped public class MainPresenter extends BasePresenterImpl<MainContract.View> implements

问题 I am migrating to the new dagger android 2.11 All set up based on the Google blueprint :MVP-Dagger.but I am having this error : Error:(22, 57) error: @Binds methods must have only one parameter whose type is assignable to the return type Here in this line : @ActivityScoped @Binds abstract PresenterFactory<MainContract.Presenter> providePresenterFactory(MainPresenter presenter); The presenter : @ActivityScoped public class MainPresenter extends BasePresenterImpl<MainContract.View> implements

问题 Why should I use viewmodelproviders for viewmodels? Why I just can't add custom singleton annotation to my viewmodel, and then inject this viewmodel to fragment class? Like so: @MainScope class MainViewModel @Inject constructor(): ViewModel() And then: open class BaseFragment<T: ViewModel>: DaggerFragment() { @Inject protected lateinit var viewModel: T Both cases are independent of screen rotation. Is there any drawbacks of singleton annotation case? I see only advantages, with this approach

问题 I've started using Dagger2, so there's still a lot to learn. I'm wondering if someone could point me on the right direction. So, I've created a module for registering the view models used by my activities. It looks like this: @Module abstract class ViewModelModule { @Binds internal abstract fun bindViewModelFactory(factory: ViewModelFactory): ViewModelProvider.Factory @Binds @IntoMap @ViewModelKey(MainActivityViewModel::class) internal abstract fun bindMainActivityViewModel(viewModel:

问题 I've started using Dagger2, so there's still a lot to learn. I'm wondering if someone could point me on the right direction. So, I've created a module for registering the view models used by my activities. It looks like this: @Module abstract class ViewModelModule { @Binds internal abstract fun bindViewModelFactory(factory: ViewModelFactory): ViewModelProvider.Factory @Binds @IntoMap @ViewModelKey(MainActivityViewModel::class) internal abstract fun bindMainActivityViewModel(viewModel:

问题 I'm trying to cut some of Dagger's boilerplate by moving some of my ViewModel instantiation in an abstract base class but can't find quite a good way to do this. My intent is to instantiate all my ViewModels from my base fragment for them to be ready to consume by all child fragments without having them do their own instantiation. My issue lies in retrieving the ViewModel using a generic (VM)- specifically here: .get(viewModel::class.java) . I also attempted .get(VM::class.java) that is not