# TilePreviewData

Artifact: [androidx.wear.tiles:tiles-tooling-preview](https://developer.android.com/jetpack/androidx/releases/wear-tiles) [View Source](https://cs.android.com/search?q=file:androidx/wear/tiles/tooling/preview/TilePreviewData.kt+class:androidx.wear.tiles.tooling.preview.TilePreviewData) Added in [1.3.0](https://developer.android.com/jetpack/androidx/releases/wear-tiles#1.3.0)

*** ** * ** ***

<br />

```
class TilePreviewData
```

<br />

*** ** * ** ***

Container class storing data required to render previews for methods annotated with `https://developer.android.com/reference/kotlin/androidx/wear/tiles/tooling/preview/Preview`.

| See also |
|---|---|
| `https://developer.android.com/reference/kotlin/androidx/wear/tiles/tooling/preview/TilePreviewHelper#singleTimelineEntryTileBuilder(androidx.wear.protolayout.LayoutElementBuilders.Layout)` |   |

## Summary

| ### Public constructors |
|---|
| `https://developer.android.com/reference/kotlin/androidx/wear/tiles/tooling/preview/TilePreviewData#TilePreviewData(kotlin.Function1,androidx.wear.protolayout.expression.PlatformDataValues,kotlin.Function1)( onTileResourceRequest: (https://developer.android.com/reference/kotlin/androidx/wear/tiles/RequestBuilders.ResourcesRequest) -> https://developer.android.com/reference/kotlin/androidx/wear/protolayout/ResourceBuilders.Resources, platformDataValues: https://developer.android.com/reference/kotlin/androidx/wear/protolayout/expression/PlatformDataValues?, onTileRequest: (https://developer.android.com/reference/kotlin/androidx/wear/tiles/RequestBuilders.TileRequest) -> https://developer.android.com/reference/kotlin/androidx/wear/tiles/TileBuilders.Tile )` |

| ### Public functions |
|---|---|
| `open operator https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/wear/tiles/tooling/preview/TilePreviewData#equals(kotlin.Any)(other: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-any/index.html?)` |
| `open https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/wear/tiles/tooling/preview/TilePreviewData#hashCode()()` |
| `open https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html` | `https://developer.android.com/reference/kotlin/androidx/wear/tiles/tooling/preview/TilePreviewData#toString()()` |

| ### Public properties |
|---|---|
| `(https://developer.android.com/reference/kotlin/androidx/wear/tiles/RequestBuilders.TileRequest) -> https://developer.android.com/reference/kotlin/androidx/wear/tiles/TileBuilders.Tile` | `https://developer.android.com/reference/kotlin/androidx/wear/tiles/tooling/preview/TilePreviewData#onTileRequest()` callback that provides the `https://developer.android.com/reference/kotlin/androidx/wear/tiles/TileBuilders.Tile` to be previewed. |
| `(https://developer.android.com/reference/kotlin/androidx/wear/tiles/RequestBuilders.ResourcesRequest) -> https://developer.android.com/reference/kotlin/androidx/wear/protolayout/ResourceBuilders.Resources` | `https://developer.android.com/reference/kotlin/androidx/wear/tiles/tooling/preview/TilePreviewData#onTileResourceRequest()` an optional callback that provides a `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/ResourceBuilders.Resources`. |
| `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/expression/PlatformDataValues?` | `https://developer.android.com/reference/kotlin/androidx/wear/tiles/tooling/preview/TilePreviewData#platformDataValues()` allows overriding platform data values for any `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/expression/PlatformDataKey`. |

## Public constructors

### TilePreviewData

Added in [1.4.0](https://developer.android.com/jetpack/androidx/releases/wear-tiles#1.4.0)

```
TilePreviewData(
    onTileResourceRequest: (RequestBuilders.ResourcesRequest) -> ResourceBuilders.Resources = { defaultResources },
    platformDataValues: PlatformDataValues? = null,
    onTileRequest: (RequestBuilders.TileRequest) -> TileBuilders.Tile
)
```

| Parameters |
|---|---|
| `onTileResourceRequest: (https://developer.android.com/reference/kotlin/androidx/wear/tiles/RequestBuilders.ResourcesRequest) -> https://developer.android.com/reference/kotlin/androidx/wear/protolayout/ResourceBuilders.Resources = { defaultResources }` | an optional callback that provides a `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/ResourceBuilders.Resources`. If the layout provided in `https://developer.android.com/reference/kotlin/androidx/wear/tiles/tooling/preview/TilePreviewData#onTileRequest()` uses automatic resource registration (either from `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/material3/package-summary#materialScopeWithResources(android.content.Context,androidx.wear.protolayout.ProtoLayoutScope,androidx.wear.protolayout.DeviceParametersBuilders.DeviceParameters,kotlin.Boolean,androidx.wear.protolayout.material3.ColorScheme,kotlin.Function1)` or other methods from `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/ProtoLayoutScope`), this callback will not be needed and, if provided, will be ignored. In other cases, it will be called before rendering the preview of the `https://developer.android.com/reference/kotlin/androidx/wear/tiles/TileBuilders.Tile`. By default, this callback will return resources automatically collected from the rendered tile via `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/ProtoLayoutScope` if they exist, or `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/ResourceBuilders.Resources` with the version "0" otherwise. |
| `platformDataValues: https://developer.android.com/reference/kotlin/androidx/wear/protolayout/expression/PlatformDataValues? = null` | allows overriding platform data values for any `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/expression/PlatformDataKey`. Default platform data values will be set for all platform health sources that have not been overridden. |
| `onTileRequest: (https://developer.android.com/reference/kotlin/androidx/wear/tiles/RequestBuilders.TileRequest) -> https://developer.android.com/reference/kotlin/androidx/wear/tiles/TileBuilders.Tile` | callback that provides the `https://developer.android.com/reference/kotlin/androidx/wear/tiles/TileBuilders.Tile` to be previewed. It will be called before rendering the preview. |

## Public functions

### equals

```
open operator fun equals(other: Any?): Boolean
```

### hashCode

```
open fun hashCode(): Int
```

### toString

```
open fun toString(): String
```

## Public properties

### onTileRequest

Added in [1.3.0](https://developer.android.com/jetpack/androidx/releases/wear-tiles#1.3.0)

```
val onTileRequest: (RequestBuilders.TileRequest) -> TileBuilders.Tile
```

callback that provides the `https://developer.android.com/reference/kotlin/androidx/wear/tiles/TileBuilders.Tile` to be previewed. It will be called before rendering the preview.

### onTileResourceRequest

Added in [1.3.0](https://developer.android.com/jetpack/androidx/releases/wear-tiles#1.3.0)

```
val onTileResourceRequest: (RequestBuilders.ResourcesRequest) -> ResourceBuilders.Resources
```

an optional callback that provides a `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/ResourceBuilders.Resources`. If the layout provided in `https://developer.android.com/reference/kotlin/androidx/wear/tiles/tooling/preview/TilePreviewData#onTileRequest()` uses automatic resource registration (either from `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/material3/package-summary#materialScopeWithResources(android.content.Context,androidx.wear.protolayout.ProtoLayoutScope,androidx.wear.protolayout.DeviceParametersBuilders.DeviceParameters,kotlin.Boolean,androidx.wear.protolayout.material3.ColorScheme,kotlin.Function1)` or other methods from `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/ProtoLayoutScope`), this callback will not be needed and, if provided, will be ignored. In other cases, it will be called before rendering the preview of the `https://developer.android.com/reference/kotlin/androidx/wear/tiles/TileBuilders.Tile`. By default, this callback will return resources automatically collected from the rendered tile via `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/ProtoLayoutScope` if they exist, or `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/ResourceBuilders.Resources` with the version "0" otherwise.

### platformDataValues

Added in [1.4.0](https://developer.android.com/jetpack/androidx/releases/wear-tiles#1.4.0)

```
val platformDataValues: PlatformDataValues?
```

allows overriding platform data values for any `https://developer.android.com/reference/kotlin/androidx/wear/protolayout/expression/PlatformDataKey`. Default platform data values will be set for all platform health sources that have not been overridden.