使用 Hilt 注入实现接口的类的正确方法

Question

我有

BeatPlayer.kt

interface BeatPlayer {
   fun getSession(): MediaSessionCompat
   fun playSong(extras: Bundle = bundleOf(BY_UI_KEY to true))
   fun playSong(id: Long)
   fun playSong(song: Song)
 }

class BeatPlayerImplementation(
private val context: Application,
private val musicPlayer: AudioPlayer,
private val songsRepository: SongsRepository,
private val queueUtils: QueueUtils,
private val audioFocusHelper: AudioFocusHelper
) : BeatPlayer {
 .........

 }

MusicService.kt

@AndroidEntryPoint
class MusicService :  CoroutineService(Main) {
   @Inject
  lateinit var beatPlayer: BeatPlayer
}

当我运行它时说：

[Dagger/MissingBinding] 如果没有 @Provides 注释的方法，就无法提供 BeatPlayer。

所以我添加了这个：

@Module
@InstallIn(SingletonComponent::class)
abstract class StorageModule {
@Singleton
@Binds
abstract fun bindBeatPlayer(beatPlayer: BeatPlayer): BeatPlayerImplementation
}

现在，我运行，它说：

错误：@Binds 方法的参数类型必须可分配给返回类型 hilt

如何正确操作？

Answer 1

我将根据@HenryTest 的评论回答我的问题。

StorageModule.kt

@Module
@InstallIn(SingletonComponent::class)
abstract class StorageModule {
@Binds
abstract fun bindsPreferenceStorage(preferenceStorageImpl: 
PreferenceStorageImpl): PreferenceStorage

@Singleton
@Binds
abstract fun bindBeatPlayer(beatPlayer: BeatPlayerImplementation): 
BeatPlayer
}

现在提供 BeatPlayerImplementation。

AppModule.kt

 @Singleton
 @Provides
 fun providesBeatPlayerImplementation(@ApplicationContext context: 
 Context.,.,.,.) = 
 BeatPlayerImplementation(
    context, .., .., ..,  
 )

或

在BeatPlayerImplementation

中

 class BeatPlayerImplementation @Inject constructor(
 @ApplicationContext private val context: Application,
 .....
 ) : BeatPlayer {
 .........
 }