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Added in API level 1

Summary: Methods

ViewTreeObserver.OnTouchModeChangeListener

Kotlin |Java

public static interface ViewTreeObserver.OnTouchModeChangeListener

android.view.ViewTreeObserver.OnTouchModeChangeListener

Known indirect subclasses

AbsListView, ExpandableListView, GridView, ListView, TabHost

AbsListView	Base class that can be used to implement virtualized lists of items.
ExpandableListView	A view that shows items in a vertically scrolling two-level list.
GridView	A view that shows items in two-dimensional scrolling grid.
ListView	Displays a vertically-scrollable collection of views, where each view is positioned immediately below the previous view in the list.
TabHost	This class was deprecated in API level 30. new applications should use fragment APIs instead of this class: Use TabLayout and ViewPager instead.

Interface definition for a callback to be invoked when the touch mode changes.

Summary

Public methods
`abstract void`	`onTouchModeChanged(boolean isInTouchMode)` Callback method to be invoked when the touch mode changes.

Public methods

onTouchModeChanged

Added in API level 1

public abstract void onTouchModeChanged (boolean isInTouchMode)

Callback method to be invoked when the touch mode changes.

Parameters
`isInTouchMode`	`boolean`: True if the view hierarchy is now in touch mode, false otherwise.

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Last updated 2026-08-03 UTC.

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