Threading di CoroutineWorker
Tetap teratur dengan koleksi
Simpan dan kategorikan konten berdasarkan preferensi Anda.
Bagi pengguna Kotlin, WorkManager memberikan dukungan kelas satu untuk coroutine. Untuk memulai,
sertakan work-runtime-ktx
pada file gradle Anda. Sebagai ganti memperpanjang Worker
, Anda harus memperpanjang CoroutineWorker
, yang memiliki versi penangguhan doWork()
. Misalnya, jika Anda ingin membuat CoroutineWorker
sederhana
untuk melakukan beberapa operasi jaringan, Anda dapat melakukan langkah berikut:
class CoroutineDownloadWorker(
context: Context,
params: WorkerParameters
) : CoroutineWorker(context, params) {
override suspend fun doWork(): Result {
val data = downloadSynchronously("https://www.google.com")
saveData(data)
return Result.success()
}
}
Perhatikan bahwa CoroutineWorker.doWork()
adalah fungsi
penangguhan. Tidak seperti Worker
, kode ini tidak berjalan pada Executor
yang ditentukan
dalam Configuration
Anda. Sebagai gantinya,
kode ini akan didefaultkan ke Dispatchers.Default
. Anda dapat menyesuaikannya dengan menyediakan CoroutineContext
Anda sendiri. Dalam contoh di atas, Anda dapat melakukan pekerjaan ini di Dispatchers.IO
, seperti berikut:
class CoroutineDownloadWorker(
context: Context,
params: WorkerParameters
) : CoroutineWorker(context, params) {
override suspend fun doWork(): Result {
withContext(Dispatchers.IO) {
val data = downloadSynchronously("https://www.google.com")
saveData(data)
return Result.success()
}
}
}
CoroutineWorker
otomatis menangani penghentian dengan membatalkan coroutine
dan menyebarkan sinyal pembatalan. Anda tidak perlu melakukan hal khusus
untuk menangani penghentian pekerjaan.
Menjalankan CoroutineWorker dalam proses yang berbeda
Anda juga dapat mengikat pekerja ke proses tertentu menggunakan
RemoteCoroutineWorker
,
implementasi ListenableWorker
.
RemoteCoroutineWorker
terikat ke proses tertentu dengan dua argumen tambahan
yang Anda berikan sebagai bagian dari data input saat membuat permintaan pekerjaan:
ARGUMENT_CLASS_NAME
dan ARGUMENT_PACKAGE_NAME
.
Contoh berikut menunjukkan pembuatan permintaan pekerjaan yang terikat dengan
proses tertentu:
Kotlin
val PACKAGE_NAME = "com.example.background.multiprocess"
val serviceName = RemoteWorkerService::class.java.name
val componentName = ComponentName(PACKAGE_NAME, serviceName)
val data: Data = Data.Builder()
.putString(ARGUMENT_PACKAGE_NAME, componentName.packageName)
.putString(ARGUMENT_CLASS_NAME, componentName.className)
.build()
return OneTimeWorkRequest.Builder(ExampleRemoteCoroutineWorker::class.java)
.setInputData(data)
.build()
Java
String PACKAGE_NAME = "com.example.background.multiprocess";
String serviceName = RemoteWorkerService.class.getName();
ComponentName componentName = new ComponentName(PACKAGE_NAME, serviceName);
Data data = new Data.Builder()
.putString(ARGUMENT_PACKAGE_NAME, componentName.getPackageName())
.putString(ARGUMENT_CLASS_NAME, componentName.getClassName())
.build();
return new OneTimeWorkRequest.Builder(ExampleRemoteCoroutineWorker.class)
.setInputData(data)
.build();
Untuk setiap RemoteWorkerService
, Anda juga perlu menambahkan definisi layanan di
file AndroidManifest.xml
:
<manifest ... >
<service
android:name="androidx.work.multiprocess.RemoteWorkerService"
android:exported="false"
android:process=":worker1" />
<service
android:name=".RemoteWorkerService2"
android:exported="false"
android:process=":worker2" />
...
</manifest>
Konten dan contoh kode di halaman ini tunduk kepada lisensi yang dijelaskan dalam Lisensi Konten. Java dan OpenJDK adalah merek dagang atau merek dagang terdaftar dari Oracle dan/atau afiliasinya.
Terakhir diperbarui pada 2025-07-27 UTC.
[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Informasi yang saya butuhkan tidak ada","missingTheInformationINeed","thumb-down"],["Terlalu rumit/langkahnya terlalu banyak","tooComplicatedTooManySteps","thumb-down"],["Sudah usang","outOfDate","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Masalah kode / contoh","samplesCodeIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],["Terakhir diperbarui pada 2025-07-27 UTC."],[],[],null,["# Threading in CoroutineWorker\n\nFor Kotlin users, WorkManager provides first-class support for [coroutines](https://kotlinlang.org/docs/reference/coroutines-overview.html). To get\nstarted, include [`work-runtime-ktx` in your gradle file](/jetpack/androidx/releases/work#declaring_dependencies). Instead of extending [`Worker`](/reference/androidx/work/Worker), you should extend [`CoroutineWorker`](/reference/kotlin/androidx/work/CoroutineWorker), which has a suspending\nversion of `doWork()`. For example, if you wanted to build a simple `CoroutineWorker`\nto perform some network operations, you would do the following: \n\n class CoroutineDownloadWorker(\n context: Context,\n params: WorkerParameters\n ) : CoroutineWorker(context, params) {\n\n override suspend fun doWork(): Result {\n val data = downloadSynchronously(\"https://www.google.com\")\n saveData(data)\n return Result.success()\n }\n }\n\nNote that [`CoroutineWorker.doWork()`](/reference/kotlin/androidx/work/CoroutineWorker#doWork()) is a *suspending*\nfunction. Unlike `Worker`, this code does *not* run on the `Executor` specified\nin your [`Configuration`](/reference/androidx/work/Configuration). Instead, it\ndefaults to `Dispatchers.Default`. You can customize this by providing your own `CoroutineContext`. In the above example, you would probably want to do this work on `Dispatchers.IO`, as follows: \n\n class CoroutineDownloadWorker(\n context: Context,\n params: WorkerParameters\n ) : CoroutineWorker(context, params) {\n\n override suspend fun doWork(): Result {\n withContext(Dispatchers.IO) {\n val data = downloadSynchronously(\"https://www.google.com\")\n saveData(data)\n return Result.success()\n }\n }\n }\n\n`CoroutineWorker` handles stoppages automatically by cancelling the coroutine\nand propagating the cancellation signals. You don't need to do anything special\nto handle [work stoppages](/topic/libraries/architecture/workmanager/how-to/managing-work#cancelling).\n\nRunning a CoroutineWorker in a different process\n------------------------------------------------\n\nYou can also bind a worker to a specific process by using\n[`RemoteCoroutineWorker`](/reference/kotlin/androidx/work/multiprocess/RemoteCoroutineWorker),\nan implementation of `ListenableWorker`.\n\n`RemoteCoroutineWorker` binds to a specific process with two extra arguments\nthat you provide as part of the input data when building the work request:\n`ARGUMENT_CLASS_NAME` and `ARGUMENT_PACKAGE_NAME`.\n\nThe following example demonstrates building a work request that is bound to a\nspecific process: \n\n### Kotlin\n\n```kotlin\nval PACKAGE_NAME = \"com.example.background.multiprocess\"\n\nval serviceName = RemoteWorkerService::class.java.name\nval componentName = ComponentName(PACKAGE_NAME, serviceName)\n\nval data: Data = Data.Builder()\n .putString(ARGUMENT_PACKAGE_NAME, componentName.packageName)\n .putString(ARGUMENT_CLASS_NAME, componentName.className)\n .build()\n\nreturn OneTimeWorkRequest.Builder(ExampleRemoteCoroutineWorker::class.java)\n .setInputData(data)\n .build()\n```\n\n### Java\n\n```java\nString PACKAGE_NAME = \"com.example.background.multiprocess\";\n\nString serviceName = RemoteWorkerService.class.getName();\nComponentName componentName = new ComponentName(PACKAGE_NAME, serviceName);\n\nData data = new Data.Builder()\n .putString(ARGUMENT_PACKAGE_NAME, componentName.getPackageName())\n .putString(ARGUMENT_CLASS_NAME, componentName.getClassName())\n .build();\n\nreturn new OneTimeWorkRequest.Builder(ExampleRemoteCoroutineWorker.class)\n .setInputData(data)\n .build();\n```\n\nFor each `RemoteWorkerService`, you also need to add a service definition in\nyour `AndroidManifest.xml` file: \n\n```xml\n\u003cmanifest ... \u003e\n \u003cservice\n android:name=\"androidx.work.multiprocess.RemoteWorkerService\"\n android:exported=\"false\"\n android:process=\":worker1\" /\u003e\n\n \u003cservice\n android:name=\".RemoteWorkerService2\"\n android:exported=\"false\"\n android:process=\":worker2\" /\u003e\n ...\n\u003c/manifest\u003e\n```"]]