Added in API level 1

OnGroupExpandListener

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Kotlin |Java

interface OnGroupExpandListener

android.widget.ExpandableListView.OnGroupExpandListener

Known Direct Subclasses ExpandableListActivity ExpandableListActivity An activity that displays an expandable list of items by binding to a data source implementing the ExpandableListAdapter, and exposes event handlers when the user selects an item.

Used for being notified when a group is expanded

Summary

Public methods
abstract Unit	onGroupExpand(groupPosition: Int) Callback method to be invoked when a group in this expandable list has been expanded.

Public methods

onGroupExpand

Added in API level 1

abstract fun onGroupExpand(groupPosition: Int): Unit

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

Parameters
groupPosition	Int: The group position that was expanded