无法将Dao依赖传入Android WorkManager构造函数，抛出NoSuchMethodException

在使用WorkManager时，尝试将DermaDao传入Worker构造函数，完成相关实现后无法访问Dao，抛出异常：

java.lang.NoSuchMethodException: com.itmedicus.pdmderma.worker.DermaWorker. [class android.content.Context, class androidx.work.WorkerParameters]

相关代码如下：

Worker类 #

@HiltWorker
class DermaWorker @AssistedInject constructor(
    @Assisted appContext: Context,
    @Assisted params: WorkerParameters,
    private val dermaDao: DermaDao
): CoroutineWorker ( appContext,params)
 {
    override suspend fun doWork(): Result = withContext(Dispatchers.IO) {
    try {
          DamiData.addDermaList()
           val list = DamiData.dermaList
          for (derma in list) {
            dermaDao.insertDermaContent(derma)
        }
        Result.success()

    } catch (ex: Exception) {
        Result.failure()
    }
  }
}

Application类 #

@HiltAndroidApp
class PdmDerma : Application(), Configuration.Provider {
 @Inject
 lateinit var workerFactory: HiltWorkerFactory

    companion object {
    lateinit var appContext: Context
    }

    override fun onCreate() {
    super.onCreate()
    appContext = applicationContext
    plant(Timber.DebugTree())
   }

    override fun getWorkManagerConfiguration(): Configuration {
    return Configuration.Builder().setWorkerFactory(workerFactory)
        .setMinimumLoggingLevel(android.util.Log.DEBUG)
        .build()
  }
}

Manifest配置 #

<provider
    android:name="androidx.startup.InitializationProvider"
    android:authorities="${applicationId}.androidx-startup"
    android:exported="false"
    tools:node="merge">
    <meta-data
        android:name="androidx.work.WorkManagerInitializer"
        android:value="androidx.startup"
        tools:node="remove" />
   </provider>

HiltWorkerModule #

@Module
@InstallIn(SingletonComponent::class)
object WorkManagerInitializer : Initializer<WorkManager> {

   @Provides
   @Singleton
   override fun create(@ApplicationContext context: Context): WorkManager {
   val configuration = Configuration.Builder().build()
   WorkManager.initialize(context, configuration)
   return WorkManager.getInstance(context)
}

  override fun dependencies(): List<Class<out Initializer<*>>> {
  // No dependencies on other libraries.
  return emptyList()
}
}

Build.gradle依赖 #

//Dagger Hilt
implementation 'com.google.dagger:hilt-android:2.42'
kapt 'com.google.dagger:hilt-compiler:2.42'
kapt 'androidx.hilt:hilt-compiler:1.0.0'
implementation 'androidx.hilt:hilt-work:1.0.0'
implementation "androidx.startup:startup-runtime:1.1.1"

// work manager
implementation "androidx.work:work-runtime-ktx:2.7.1"

异常核心原因是WorkManager未使用Hilt提供的WorkerFactory，导致它尝试调用Worker的默认构造函数（仅接收Context+WorkerParameters），但你的DermaWorker只有@AssistedInject构造函数，因此抛出找不到方法的异常。

问题根源 #

你在Application中已经正确实现了Configuration.Provider并注入了HiltWorkerFactory，但自定义的WorkManagerInitializer模块又重新初始化了一个不带HiltWorkerFactory的WorkManager，覆盖了Application中的正确配置。

修复步骤 #

1. 删除自定义的WorkManagerInitializer模块
   无需自行实现Initializer，Application实现Configuration.Provider后，Hilt会自动处理WorkManager的初始化，并使用你注入的HiltWorkerFactory。

2. 保留Application中的配置
   你的PdmDerma类中的getWorkManagerConfiguration已经正确设置了WorkerFactory，无需修改。

3. 清理编译缓存
   删除项目的build文件夹，执行Clean Project和Rebuild Project，确保Hilt生成的代码正确更新。

完成以上操作后，WorkManager会通过HiltWorkerFactory创建DermaWorker，从而正确注入DermaDao，解决异常问题。

内容的提问来源于stack exchange，提问作者Ibrahim khalil Shakir