# TriggerBuilders.OnVisibleOnceTrigger

# TriggerBuilders.OnVisibleOnceTrigger

Artifact:[androidx.wear.protolayout:protolayout](https://developer.android.com/jetpack/androidx/releases/wear-protolayout)  
[View Source](https://cs.android.com/search?q=file:androidx/wear/protolayout/TriggerBuilders.java+class:androidx.wear.protolayout.TriggerBuilders.OnVisibleOnceTrigger)  
Added in[1.3.0](https://developer.android.com/jetpack/androidx/releases/wear-protolayout#1.3.0)

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Kotlin\|[Java](https://developer.android.com/reference/androidx/wear/protolayout/TriggerBuilders.OnVisibleOnceTrigger "View this page in Java")

<br />

```
@RequiresSchemaVersion(major = 1, minor = 200)
@ProtoLayoutExperimental
class TriggerBuilders.OnVisibleOnceTrigger : TriggerBuilders.Trigger
```

<br />

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Triggers only once when the layout visibility state turns from invisible to fully visible for the first time.

## Summary

|                                                                                                                                                        ### Nested types                                                                                                                                                         |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `class `[TriggerBuilders.OnVisibleOnceTrigger.Builder](https://developer.android.com/reference/kotlin/androidx/wear/protolayout/TriggerBuilders.OnVisibleOnceTrigger.Builder) Builder for[OnVisibleOnceTrigger](https://developer.android.com/reference/kotlin/androidx/wear/protolayout/TriggerBuilders.OnVisibleOnceTrigger). |

|                                ### Public functions                                 |
|-------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [Boolean](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html) | [equals](https://developer.android.com/reference/kotlin/androidx/wear/protolayout/TriggerBuilders.OnVisibleOnceTrigger#equals(java.lang.Object))`(obj: `[Any](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-any/index.html)`?)` |
| [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)         | [hashCode](https://developer.android.com/reference/kotlin/androidx/wear/protolayout/TriggerBuilders.OnVisibleOnceTrigger#hashCode())`()`                                                                                                |
| [String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)   | [toString](https://developer.android.com/reference/kotlin/androidx/wear/protolayout/TriggerBuilders.OnVisibleOnceTrigger#toString())`()`                                                                                                |

## Public functions

### equals

```
fun equals(obj: Any?): Boolean
```  

### hashCode

```
fun hashCode(): Int
```  

### toString

```
fun toString(): String
```