使用 Hilt 注入 CoroutineWorker

Question

我正在尝试使用匕首柄注入协程 worker，我已按照文档中的所有说明进行操作

https://developer.android.com/training/dependency-injection/hilt-jetpack 这是为“工人”而不是“协程工人”设计的..

但它给出了一个错误：

java.lang.NoSuchMethodError: No interface method getBackgroundExecutor()Ljava/util/concurrent/Executor

..在 Whosebug 上发布了同样的问题，但答案不适合我的情况

Can not inject workmanager constructor with Hilt

这是代码和错误

如果有人能提供帮助，我将不胜感激...这是我的代码

package com.example.moviemania.work

import android.content.Context
import androidx.hilt.Assisted
import androidx.hilt.work.WorkerInject
import androidx.work.CoroutineWorker
import androidx.work.WorkerParameters
import com.example.moviemania.repository.MainRepository
import retrofit2.HttpException

class RefreshDataWorker @WorkerInject constructor (
    @Assisted appContext: Context,
    @Assisted params: WorkerParameters,
    val mainRepository: MainRepository
    ) : CoroutineWorker(appContext,params) {

    companion object {
        const val WORK_NAME = "com.example.moviemania.work.RefreshDataWorker"
    }

    override suspend fun doWork(): Result {
        try {
            mainRepository.refreshMovies()
        }catch (e: HttpException){
            return Result.retry()
        }
        return Result.success()
    }
}

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

    private val applicationScope = CoroutineScope(Dispatchers.Default)
    override fun getWorkManagerConfiguration() =
        Configuration.Builder()
            .setWorkerFactory(workerFactory)
            .setMinimumLoggingLevel(android.util.Log.DEBUG)
            .build()


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

    private fun delayedInit() {
        applicationScope.launch {
            setupRecurringWork()
        }
    }
    private fun setupRecurringWork(){
        val repeatingRequest = PeriodicWorkRequestBuilder<RefreshDataWorker>(1,TimeUnit.DAYS).build()
        WorkManager.getInstance(applicationContext).enqueueUniquePeriodicWork(
            RefreshDataWorker.WORK_NAME,
            ExistingPeriodicWorkPolicy.KEEP,
            repeatingRequest
        )
    }
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.example.moviemania">

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <application
        android:name=".MoviesApp"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.MovieMania">
        <activity android:name=".ui.MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <provider
            android:name="androidx.work.impl.WorkManagerInitializer"
            android:authorities="com.example.moviemania.workmanager-init"
            tools:node="remove" />
    </application>

</manifest>

这是错误

2021-01-11 09:23:44.685 29929-29960/com.example.moviemania E/AndroidRuntime: FATAL EXCEPTION: pool-2-thread-1
    Process: com.example.moviemania, PID: 29929
    java.lang.NoSuchMethodError: No interface method getBackgroundExecutor()Ljava/util/concurrent/Executor; in class Landroidx/work/impl/utils/taskexecutor/TaskExecutor; or its super classes (declaration of 'androidx.work.impl.utils.taskexecutor.TaskExecutor' appears in /data/app/com.example.moviemania-6m_-4lzXG2Ud-HIb1asUiQ==/base.apk)
        at androidx.work.CoroutineWorker.<init>(CoroutineWorker.kt:52)
        at com.example.moviemania.work.RefreshDataWorker.<init>(RefreshDataWorker.kt:22)
        at com.example.moviemania.work.RefreshDataWorker_AssistedFactory.create(RefreshDataWorker_AssistedFactory.java:25)
        at com.example.moviemania.work.RefreshDataWorker_AssistedFactory.create(RefreshDataWorker_AssistedFactory.java:13)
        at androidx.hilt.work.HiltWorkerFactory.createWorker(HiltWorkerFactory.java:55)
        at androidx.work.WorkerFactory.createWorkerWithDefaultFallback(WorkerFactory.java:83)
        at androidx.work.impl.WorkerWrapper.runWorker(WorkerWrapper.java:242)
        at androidx.work.impl.WorkerWrapper.run(WorkerWrapper.java:136)
        at androidx.work.impl.utils.SerialExecutor$Task.run(SerialExecutor.java:91)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
        at java.lang.Thread.run(Thread.java:764)

Answer 1

我认为这是一个不正确的导入语句：这是片段

请检查您的 Hilt 模块是否存在错误导入。

PS：我已经为您添加了导入内容

AndroidManifest.xml

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

MyApplication.kt

import android.app.Application
import androidx.hilt.work.HiltWorkerFactory
import androidx.work.Configuration
import androidx.work.ExistingPeriodicWorkPolicy
import androidx.work.PeriodicWorkRequestBuilder
import androidx.work.WorkManager
import dagger.hilt.android.HiltAndroidApp
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
import java.util.concurrent.TimeUnit
import javax.inject.Inject

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

    private val applicationScope = CoroutineScope(Dispatchers.Default)

    override fun getWorkManagerConfiguration() =
        Configuration.Builder()
            .setWorkerFactory(workerFactory)
            .setMinimumLoggingLevel(android.util.Log.DEBUG)
            .build()


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

    private fun delayedInit() {
        applicationScope.launch {
            setupRecurringWork()
        }
    }

    private fun setupRecurringWork(){
        val repeatingRequest = PeriodicWorkRequestBuilder<RefreshDataWorker>(1, TimeUnit.DAYS).build()

        WorkManager.getInstance(applicationContext).enqueueUniquePeriodicWork(
            RefreshDataWorker.WORK_NAME,
            ExistingPeriodicWorkPolicy.KEEP,
            repeatingRequest
        )
    }
}

RefreshDataWorker.kt

import android.content.Context
import androidx.hilt.Assisted
import androidx.hilt.work.WorkerInject
import androidx.work.CoroutineWorker
import androidx.work.WorkerParameters
import java.lang.Exception

class RefreshDataWorker @WorkerInject constructor (
    @Assisted appContext: Context,
    @Assisted params: WorkerParameters,
    private val mainRepository: MainRepository
    ) : CoroutineWorker(appContext,params) {

    companion object {
        const val WORK_NAME = "com.example.moviemania.work.RefreshDataWorker"
    }

    override suspend fun doWork(): Result {
        try {
            mainRepository.refreshMovies()
        }catch (e: Exception){
            return Result.retry()
        }
        return Result.success()
    }
}

MainRepository.kt

import android.util.Log
import javax.inject.Inject

class MainRepository @Inject constructor() {
    fun refreshMovies() {
        Log.d("ManoO", "Hello first time from worker: initiated immediately")
    }
}

Gradle 脚本

项目

buildscript {
    ...

    dependencies {
        ...
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.4.21"
        classpath 'com.google.dagger:hilt-android-gradle-plugin:2.30.1-alpha'
    }
}

应用程序

dependencies {
    ....

    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.2"
    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.4.2"

    implementation "com.google.dagger:hilt-android:2.30.1-alpha"
    kapt "com.google.dagger:hilt-android-compiler:2.30.1-alpha"
    implementation 'androidx.hilt:hilt-work:1.0.0-alpha02'
    kapt 'androidx.hilt:hilt-compiler:1.0.0-alpha02'

    def work_version = "2.5.0-beta02"
    implementation "androidx.work:work-runtime-ktx:$work_version"

}

Answer 2

自工作版本 2.6 起，它可以使用以下 androidmanifest.xml

AndroidManifest.xml

<provider
     android:name="androidx.startup.InitializationProvider"
     android:authorities="${applicationId}.androidx-startup"
     tools:node="remove">
</provider>

并且在 Worker class 的情况下，一些注释已更改。 @HiltWorker，@AssistedInject

@HiltWorker
class RefreshWorker @AssistedInject constructor(
    @Assisted appContext: Context,
    @Assisted workerParams: WorkerParameters,
    val myRepository: MyRepository
) : CoroutineWorker(appContext, workerParams) {

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

}

开发者网站（工作人员api） https://developer.android.com/jetpack/androidx/releases/hilt

将@WorkerInject 替换为@HiltWorker。 @HiltWorker 现在是一个类型注释，需要在构造函数中使用 @AssistedInject。 (ic2f15)

开发者网站（移除默认工作初始化程序） https://developer.android.com/topic/libraries/architecture/workmanager/advanced/custom-configuration#remove-default

删除默认初始化器要提供您自己的配置，您必须先删除默认初始化器。为此，请使用合并规则 tools:node="remove".

更新 AndroidManifest.xml

自 WorkManager 2.6 起，App Startup 在 WorkManager 内部使用。要提供自定义初始化程序，您需要删除 androidx.startup 节点。

使用 Hilt 注入 CoroutineWorker

Injecting CoroutineWorker using Hilt

android

kotlin

coroutine

dagger-hilt

AndroidManifest.xml

MyApplication.kt

RefreshDataWorker.kt

MainRepository.kt

Gradle 脚本

应用程序