Question

我正在学习如何使用MVP模式和Dagger2。我已根据教程将演示者注入到视图中，并将模型注入了演示者中，但是我无法弄清楚如何将“外部”内容（例如应用程序/上下文）注入到我的模型中我已经阅读了有关创建ContextModule的内容，但我仍然不知道如何使其与我的课程一起使用。所以我有：

SettingsActivity -查看课程

class SettingsActivity : AppCompatActivity() {

@Inject
lateinit var settingsPresenter: SettingsPresenter

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_settings)

    var component: SettingsComponent = DaggerSettingsComponent.create()
    component.inject(this)
}

}

SettingsPresenter -具有MVP接口的演示者类

class SettingsPresenter : BasePresenter<SettingsContract.View>, SettingsContract.Presenter{

     var settings: SettingsModel

    @Inject
    constructor(settings: SettingsModel) : super() {
        this.settings = settings
    }
}

interface SettingsContract {
    interface View
    interface Presenter
}

@Component
interface SettingsComponent {
    fun inject(settingsActivity: SettingsActivity)
}

SettingsModel -模型类

class SettingsModel {

    @Inject
    constructor() {
    }
//I'd like to have my context field here
    @Inject
    lateinit var context: Context
}

AppModule -我想用来提供上下文的类

@Module
class AppModule {
    var context: Context

    constructor(context: Context) {
        this.context = context
    }

    @Provides
    fun getAppContext() : Context {
        return context.applicationContext
    }
}

我应该如何将上下文注入SettingsModel以及从何处启动？

如何在MVP Android中向Model类注入上下文？

0 个答案: