# FileDataSource.Factory

Artifact: [androidx.media3:media3-datasource](https://developer.android.com/jetpack/androidx/releases/media3) [View Source](https://cs.android.com/search?q=file:androidx/media3/datasource/FileDataSource.java+class:androidx.media3.datasource.FileDataSource.Factory)

*** ** * ** ***


```
public final class FileDataSource.Factory implements DataSource.Factory
```

<br />

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`https://developer.android.com/reference/androidx/media3/datasource/DataSource.Factory` for `https://developer.android.com/reference/androidx/media3/datasource/FileDataSource` instances.

## Summary

| ### Public constructors |
|---|
| `https://developer.android.com/reference/androidx/media3/datasource/FileDataSource.Factory#Factory()()` |

| ### Public methods |
|---|---|
| `https://developer.android.com/reference/androidx/media3/datasource/FileDataSource` | `https://developer.android.com/reference/androidx/media3/datasource/FileDataSource.Factory#createDataSource()()` Creates a `https://developer.android.com/reference/androidx/media3/datasource/DataSource` instance. |
| `https://developer.android.com/reference/androidx/media3/datasource/FileDataSource.Factory` | `@https://checkerframework.org/api/com/google/errorprone/annotations/CanIgnoreReturnValue.html https://developer.android.com/reference/androidx/media3/datasource/FileDataSource.Factory#setListener(androidx.media3.datasource.TransferListener)(@https://developer.android.com/reference/androidx/annotation/Nullable https://developer.android.com/reference/androidx/media3/datasource/TransferListener listener)` Sets a `https://developer.android.com/reference/androidx/media3/datasource/TransferListener` for `https://developer.android.com/reference/androidx/media3/datasource/FileDataSource` instances created by this factory. |

## Public constructors

### Factory

```
public Factory()
```

## Public methods

### createDataSource

```
public FileDataSource createDataSource()
```

Creates a `https://developer.android.com/reference/androidx/media3/datasource/DataSource` instance.

### setListener

```
@CanIgnoreReturnValue
public FileDataSource.Factory setListener(@Nullable TransferListener listener)
```

Sets a `https://developer.android.com/reference/androidx/media3/datasource/TransferListener` for `https://developer.android.com/reference/androidx/media3/datasource/FileDataSource` instances created by this factory.

| Parameters |
|---|---|
| `@https://developer.android.com/reference/androidx/annotation/Nullable https://developer.android.com/reference/androidx/media3/datasource/TransferListener listener` | The `https://developer.android.com/reference/androidx/media3/datasource/TransferListener`. |

| Returns |
|---|---|
| `https://developer.android.com/reference/androidx/media3/datasource/FileDataSource.Factory` | This factory. |