Unable To Set A Custom Worker Factory In Workmanager

I use this code to set my own worker factory: val daggerWorkerFactory = DaggerWorkerFactory(toInjectInWorker) val configuration = Configuration.Builder() .setWorkerFactory

Solution 1:

From the documentation of WorkerManager.initialize()

By default, this method should not be called because WorkManager is automatically initialized. To initialize WorkManager yourself, please follow these steps:

Disable androidx.work.impl.WorkManagerInitializer in your manifest In Application#onCreate or a ContentProvider, call this method before calling getInstance()

So what you need is to disable WorkManagerInitializer in your Manifest file:

  <application
        //...
        android:name=".MyApplication">
        //...
        <provider
            android:name="androidx.work.impl.WorkManagerInitializer"
            android:authorities="your-packagename.workmanager-init"
            android:enabled="false"
            android:exported="false" />
    </application>

And in your custom Application class, initialize your WorkerManager:

classMyApplication : Application() {

    overridefunonCreate() {
        super.onCreate()
        val daggerWorkerFactory = DaggerWorkerFactory(toInjectInWorker)

        val configuration = Configuration.Builder()
            .setWorkerFactory(daggerWorkerFactory)
            .build()

        WorkManager.initialize(context, configuration)
    }
}

Note:

By default, WorkerManager will add a ContentProvider called WorkerManagerInitializer with authorities set to my-packagename.workermanager-init.

If you pass wrong authorities in your Manifest file while disabling the WorkerManagerInitializer, Android will not be able to compile your manifest.