我有一个ViewModel有两个使用Dagger 2.11注入的var。
然而,在我的应用程序中的其他地方,它永远不会被注入我的viewModel中,这些相同的依赖Vars会被初始化并完美地注入
以下是我的viewModel
class MyViewModel : AndroidViewModel, MyViewModelContract {
private lateinit var pointsBalance: MutableLiveData<PointsBalance>
@Inject
lateinit var accountDelegator: AccountDelegatorContract
@Inject
constructor(application: Application) : super(application)
init {
DaggerApplicationComponent.builder().application(getApplication() as MyApplication).build().inject(this)
}
override fun getPointsBalance(): LiveData<PointsBalance> {
if (!this::pointsBalance.isInitialized) {
//get balance from network api etc
}
return pointsBalance
}
accountDelegator抱怨它未初始化
下面是我如何在MyModule.class
中绑定此viewModel @Provides
@JvmStatic
@Singleton
fun providesViewModel(viewModel: MyViewModel): MyViewModelContract = viewModel
我的自定义应用
class MyApplication : DaggerApplication() {
override fun applicationInjector(): AndroidInjector<out DaggerApplication> {
val applicationComponent = DaggerApplicationComponent.builder()
.application(this)
.build()
applicationComponent.inject(this)
return applicationComponent
}
}
我的applicationComponent
@Singleton
@Component(modules = arrayOf(MyModule::class,
))
interface ApplicationComponent : AndroidInjector<DaggerApplication> {
fun inject(mApplication: MyApplication)
override fun inject(instance: DaggerApplication)
@Component.Builder
interface Builder {
@BindsInstance
fun application(applicaton: MyApplication): Builder
fun build(): ApplicationComponent
}
}
我如何在activity / fragment中使用此viewmodel
viewModel = ViewModelProviders.of(this).get(MyViewModel::class.java)
答案 0 :(得分:1)
我认为问题是你没有打电话给xn=1/(np.sqrt(1+np.exp(2(x0)**2)))
。您需要开始在inject
ApplicationComponent
我在这里做的是fwiw继承自void inject(MyViewModel viewModel);
(提供对应用程序实例的访问权限),然后在ViewModel类中调用以下内容(您需要用AndroidViewModel
替换DaggerProvider.getComponent
但是你正在访问代码中的组件
init {
DaggerProvider.getComponent(application).inject(this)
}