为什么不Dagger2注入我科特林Android应用程序？

Question

目前我正在学习如何注入到Android应用程序与匕首2.我写了一个非常基本的代码，但它拒绝工作。我的目标是注入，因为它应该是MainActicity。它建立我的代码：

class MainActivity : AppCompatActivity() {

   @Inject lateinit var info: Info
    override fun onCreate(savedInstanceState: Bundle?) {
        AndroidInjection.inject(this)
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        txt_view.text = info.textInformation
    }
}

class Info {val textInformation = "You are able to read this"    }
@Module
class InfoModule{
    @Provides
    fun info ():Info{
        return Info()
    }
}

class CustomApp : Application (),HasActivityInjector{

    @Inject
    lateinit var dispatchingAndroidInjector: DispatchingAndroidInjector<Activity>

    override fun activityInjector(): AndroidInjector<Activity> {
        return dispatchingAndroidInjector
    }
}

@Component(modules = arrayOf(AndroidInjectionModule::class,
    ActivityModule::class))
interface ApplicationComponent{
    fun inject(application: CustomApp)
}

@Module
abstract class ActivityModule{
    @ContributesAndroidInjector(modules = arrayOf(InfoModule::class))
    abstract fun contributeInfoActivityInjector():MainActivity
}

Answer 1

答案是，我忘了这个代码添加到CustomApp类，并.CustomApp的清单文件

override fun onCreate() {
    super.onCreate()
    initDi()
}

private fun initDi() {
    DaggerApplicationComponent.builder().build().inject(this)
}