# ActivityKt

Added in 2.4.0

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```
public final class ActivityKt
```

<br />

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## Summary

| ### Public methods |
|---|---|
| `static final @https://developer.android.com/reference/androidx/annotation/NonNull https://developer.android.com/reference/androidx/navigation/NavController` | `https://developer.android.com/reference/androidx/navigation/ActivityKt#(android.app.Activity).findNavController(kotlin.Int)(@https://developer.android.com/reference/androidx/annotation/NonNull https://developer.android.com/reference/android/app/Activity.html receiver, @https://developer.android.com/reference/androidx/annotation/IdRes int viewId)` Find a `https://developer.android.com/reference/androidx/navigation/NavController` given the id of a View and its containing `https://developer.android.com/reference/android/app/Activity.html`. |

## Public methods

### findNavController

Artifact: [androidx.navigation:navigation-runtime](https://developer.android.com/jetpack/androidx/releases/navigation) [View Source](https://cs.android.com/search?q=file:androidx/navigation/Activity.android.kt+function:findNavController) Added in [2.4.0](https://developer.android.com/jetpack/androidx/releases/navigation#2.4.0)

```
public static final @NonNull NavController findNavController(@NonNull Activity receiver, @IdRes int viewId)
```

Find a `https://developer.android.com/reference/androidx/navigation/NavController` given the id of a View and its containing `https://developer.android.com/reference/android/app/Activity.html`.

Calling this on a View that is not a `https://developer.android.com/reference/androidx/navigation/NavHost` or within a `https://developer.android.com/reference/androidx/navigation/NavHost` will result in an `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-illegal-state-exception/index.html`