Added in [API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Methods](https://developer.android.com/reference/android/widget/ExpandableListView.OnGroupExpandListener#pubmethods)

# ExpandableListView.OnGroupExpandListener

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` public static interface ExpandableListView.OnGroupExpandListener `   
` `

|---|
| android.widget.ExpandableListView.OnGroupExpandListener |

Known indirect subclasses [ExpandableListActivity](https://developer.android.com/reference/android/app/ExpandableListActivity) [ExpandableListActivity](https://developer.android.com/reference/android/app/ExpandableListActivity) *This class was deprecated in API level 30. Use `https://developer.android.com/reference/androidx/recyclerview/widget/RecyclerView.html` or use `https://developer.android.com/reference/android/widget/ExpandableListView` directly*   

*** ** * ** ***

Used for being notified when a group is expanded

## Summary

| ### Public methods ||
|---|---|
| ` abstract void` | ` https://developer.android.com/reference/android/widget/ExpandableListView.OnGroupExpandListener#onGroupExpand(int)(int groupPosition) ` Callback method to be invoked when a group in this expandable list has been expanded. |

## Public methods

### onGroupExpand

Added in [API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public abstract void onGroupExpand (int groupPosition)
```

Callback method to be invoked when a group in this expandable list has been expanded.

<br />

| Parameters ||
|---|---|
| `groupPosition` | `int`: The group position that was expanded <br /> |