android - 无法使用 Hilt 注入(inject) workmanager 构造函数

Question

我正在开发一个 Android 应用程序。我正在尝试将 hilt 与 workmanager 构造函数一起使用，但它不起作用并给了我这个错误:

2020-08-18 19:01:09.989 18125-18759/com. E/WM-WorkerFactory: Could not instantiate example.android.app.database.DeleteNotesWorker
    java.lang.NoSuchMethodException: example.android.app.database.DeleteNotesWorker.<init> [class android.content.Context, class androidx.work.WorkerParameters]
        at java.lang.Class.getConstructor0(Class.java:2328)
        at java.lang.Class.getDeclaredConstructor(Class.java:2167)
        at androidx.work.WorkerFactory.createWorkerWithDefaultFallback(WorkerFactory.java:95)
        at androidx.work.impl.WorkerWrapper.runWorker(WorkerWrapper.java:242)
        at androidx.work.impl.WorkerWrapper.run(WorkerWrapper.java:136)
        at androidx.work.impl.utils.SerialExecutor$Task.run(SerialExecutor.java:91)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:764)

这是 worker 类(Class):

class DeleteNotesWorker @WorkerInject constructor(
    @Assisted context: Context,
    @Assisted workerParams: WorkerParameters,
    private val dao : NotesDao
) : CoroutineWorker(context, workerParams) {

    override suspend fun doWork(): Result {
        dao.deleteNotesInTrash()
         return Result.success()
    }


}

应用模块:

@Module
@InstallIn(ApplicationComponent::class)
object AppModule {

    @Singleton
    @Provides
    fun getNotesDatabase(@ApplicationContext context: Context) =
        Room.databaseBuilder(context, NotesDatabase::class.java, NotesDatabase.DB_NAME).build()

    @Singleton
    @Provides
    fun getDoa(db: NotesDatabase) = db.notesDao()

}

应用类:

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

    @Inject
    lateinit var workerFactory: HiltWorkerFactory

    override fun getWorkManagerConfiguration(): Configuration {
        return Configuration.Builder()
            .setWorkerFactory(workerFactory)
            .build()
    }


}

build.gradle(应用程序):

 dependencies {

.......

 //Hilt
    implementation "com.google.dagger:hilt-android:2.28-alpha"
    kapt "com.google.dagger:hilt-android-compiler:2.28-alpha"
    
    //Hilt with workManager
    implementation 'androidx.hilt:hilt-work:1.0.0-alpha02'
    kapt 'androidx.hilt:hilt-compiler:1.0.0-alpha02'
}

build.gradle(项目):

 dependencies {
        classpath 'com.android.tools.build:gradle:4.0.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

    ............

        //Hilt
        classpath 'com.google.dagger:hilt-android-gradle-plugin:2.28-alpha'

        ..........
    }

在这种情况下我做错了什么吗？如果是，请帮助我

Answer 1

根据this文档，您需要将此代码粘贴到您的 AndroidManifest 中以使 Hilt 的 WorkManager Inject 工作。

<provider
    android:name="androidx.work.impl.WorkManagerInitializer"
    android:authorities="${applicationId}.workmanager-init"
    tools:node="remove" />

前段时间我遇到了和你一样的问题，这解决了