# SpeculativeLoadingParameters

Artifact: [androidx.webkit:webkit](https://developer.android.com/jetpack/androidx/releases/webkit) [View Source](https://cs.android.com/search?q=file:androidx/webkit/SpeculativeLoadingParameters.java+class:androidx.webkit.SpeculativeLoadingParameters) Added in [1.13.0](https://developer.android.com/jetpack/androidx/releases/webkit#1.13.0)

*** ** * ** ***


```
@RequiresFeature(name = WebViewFeature.PROFILE_URL_PREFETCH, enforcement = "androidx.webkit.WebViewFeature#isFeatureSupported")
@Profile.ExperimentalUrlPrefetch
class SpeculativeLoadingParameters
```

<br />

*** ** * ** ***

Parameters for customizing the prefetch. Use the `https://developer.android.com/reference/kotlin/androidx/webkit/SpeculativeLoadingParameters.Builder` to construct.

## Summary

| ### Nested types |
|---|
| `class https://developer.android.com/reference/kotlin/androidx/webkit/SpeculativeLoadingParameters.Builder` **This class is deprecated.** Use `https://developer.android.com/reference/kotlin/androidx/webkit/PrerenderParameters` or `https://developer.android.com/reference/kotlin/androidx/webkit/PrefetchParameters` instead. <br /> |

| ### Public functions |
|---|---|
| `(https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-mutable-map/index.html)https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html<https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!, https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!>` | `https://developer.android.com/reference/kotlin/androidx/webkit/SpeculativeLoadingParameters#getAdditionalHeaders()()` |
| `https://developer.android.com/reference/kotlin/androidx/webkit/NoVarySearchHeader?` | `https://developer.android.com/reference/kotlin/androidx/webkit/SpeculativeLoadingParameters#getExpectedNoVarySearchData()()` |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html?` | `https://developer.android.com/reference/kotlin/androidx/webkit/SpeculativeLoadingParameters#getVariationsId()()` |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/webkit/SpeculativeLoadingParameters#isJavaScriptEnabled()()` |

## Public functions

### getAdditionalHeaders

Added in [1.13.0](https://developer.android.com/jetpack/androidx/releases/webkit#1.13.0)

```
fun getAdditionalHeaders(): (Mutable)Map<String!, String!>
```

| Returns |
|---|---|
| `(https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-mutable-map/index.html)https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html<https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!, https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html!>` | The map of the additional headers built using `https://developer.android.com/reference/kotlin/androidx/webkit/SpeculativeLoadingParameters.Builder`. |

### getExpectedNoVarySearchData

Added in [1.13.0](https://developer.android.com/jetpack/androidx/releases/webkit#1.13.0)

```
fun getExpectedNoVarySearchData(): NoVarySearchHeader?
```

| Returns |
|---|---|
| `https://developer.android.com/reference/kotlin/androidx/webkit/NoVarySearchHeader?` | The noVarySearch model built using `https://developer.android.com/reference/kotlin/androidx/webkit/SpeculativeLoadingParameters.Builder`. |

### getVariationsId

Added in [1.16.0](https://developer.android.com/jetpack/androidx/releases/webkit#1.16.0)

```
fun getVariationsId(): Int?
```

| Returns |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html?` | The variations id built using `https://developer.android.com/reference/kotlin/androidx/webkit/SpeculativeLoadingParameters.Builder`. |

### isJavaScriptEnabled

Added in [1.13.0](https://developer.android.com/jetpack/androidx/releases/webkit#1.13.0)

```
fun isJavaScriptEnabled(): Boolean
```

| Returns |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | The javascript enabled setting built using `https://developer.android.com/reference/kotlin/androidx/webkit/SpeculativeLoadingParameters.Builder`. |