Summary: Ctors | Methods | Inherited Methods

DelegatingWorkerFactory

Kotlin |Java

public class DelegatingWorkerFactory
extends WorkerFactory

java.lang.Object
↳	androidx.work.WorkerFactory
	↳	androidx.work.DelegatingWorkerFactory

A WorkerFactory which delegates to other factories. Factories can register themselves as delegates, and they will be invoked in order until a delegated factory returns a non-null ListenableWorker instance.

Summary

Public constructors
`DelegatingWorkerFactory()` Creates a new instance of the `DelegatingWorkerFactory`.

Public methods
`final void`	`addFactory(WorkerFactory workerFactory)` Adds a `WorkerFactory` to the list of delegates.
`final ListenableWorker`	`createWorker(Context context, String workerClass, WorkerParameters parameters)` Override this method to implement your custom worker-creation logic.

Inherited methods

From class


        
          androidx.work.WorkerFactory


        abstract
        
        
        
        
        ListenableWorker


      createWorker(Context appContext, String workerClassName, WorkerParameters workerParameters)

Override this method to implement your custom worker-creation logic.

From class


        
          java.lang.Object

`Object`	`clone()`
`boolean`	`equals(Object arg0)`
`void`	`finalize()`
`final Class<?>`	`getClass()`
`int`	`hashCode()`
`final void`	`notify()`
`final void`	`notifyAll()`
`String`	`toString()`
`final void`	`wait(long arg0, int arg1)`
`final void`	`wait(long arg0)`
`final void`	`wait()`

Public constructors

DelegatingWorkerFactory

public DelegatingWorkerFactory ()

Creates a new instance of the DelegatingWorkerFactory.

Public methods

addFactory

public final void addFactory (WorkerFactory workerFactory)

Adds a WorkerFactory to the list of delegates.

Parameters
`workerFactory`	`WorkerFactory`: The `WorkerFactory` instance.

createWorker

public final ListenableWorker createWorker (Context context, 
                String workerClass, 
                WorkerParameters parameters)

Override this method to implement your custom worker-creation logic. Use Configuration.Builder.setWorkerFactory(WorkerFactory) to use your custom class.

Throwing an Exception here will crash the application. If a WorkerFactory is unable to create an instance of the ListenableWorker, it should return null so it can delegate to the default WorkerFactory.

Returns a new instance of the specified workerClassName given the arguments. The returned worker must be a newly-created instance and must not have been previously returned or invoked by WorkManager. Otherwise, WorkManager will throw an IllegalStateException.

Parameters
`context`	`Context`: The application context
`workerClass`	`String`: The class name of the worker to create
`parameters`	`WorkerParameters`: Parameters for worker initialization

Returns
`ListenableWorker`	A new `ListenableWorker` instance of type `workerClassName`, or `null` if the worker could not be created