使用Hilt注入WorkManager遇错：getWorkManagerConfiguration未覆写任何内容

我尝试按照官方指引用Hilt注入WorkManager，但在实现Configuration.Provider接口时遇到问题。

我的代码如下：

@HiltAndroidApp
class ExampleApplication : Application(), Configuration.Provider {

  @Inject lateinit var workerFactory: HiltWorkerFactory

  override fun getWorkManagerConfiguration() =
      Configuration.Builder()
            .setWorkerFactory(workerFactory)
            .build()
}

我收到了**“getWorkManagerConfiguration overrides nothing”**的错误，无法正确实现接口的getter方法。查看接口代码发现它定义的是一个属性而非方法：

interface Provider {
    /**
     * The [Configuration] used to initialize WorkManager
     */
    val workManagerConfiguration: Configuration
}

错误截图：

解决方案 #

问题出在接口定义的是属性，而你用了方法来重写。把代码改成属性重写即可：

@HiltAndroidApp
class ExampleApplication : Application(), Configuration.Provider {

  @Inject lateinit var workerFactory: HiltWorkerFactory

  override val workManagerConfiguration: Configuration
      get() = Configuration.Builder()
            .setWorkerFactory(workerFactory)
            .build()
}

内容的提问来源于stack exchange，提问作者Song