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Added in API level 1

Summary:

UpdateLayout

Kotlin |Java

public interface UpdateLayout
implements UpdateAppearance

android.text.style.UpdateLayout

Known indirect subclasses

AbsoluteSizeSpan, DynamicDrawableSpan, ImageSpan, LocaleSpan, MetricAffectingSpan, RelativeSizeSpan, ReplacementSpan, ScaleXSpan, StyleSpan, SubscriptSpan, SuperscriptSpan, TextAppearanceSpan, TypefaceSpan

AbsoluteSizeSpan	A span that changes the size of the text it's attached to.
DynamicDrawableSpan	Span that replaces the text it's attached to with a `Drawable` that can be aligned with the bottom or with the baseline of the surrounding text.
ImageSpan	Span that replaces the text it's attached to with a `Drawable` that can be aligned with the bottom or with the baseline of the surrounding text.
LocaleSpan	Changes the `Locale` of the text to which the span is attached.
MetricAffectingSpan	The classes that affect character-level text formatting in a way that changes the width or height of characters extend this class.
RelativeSizeSpan	Uniformly scales the size of the text to which it's attached by a certain proportion.
ReplacementSpan
ScaleXSpan	Scales horizontally the size of the text to which it's attached by a certain factor.
StyleSpan	Span that allows setting the style of the text it's attached to.
SubscriptSpan	The span that moves the position of the text baseline lower.
SuperscriptSpan	The span that moves the position of the text baseline higher.
TextAppearanceSpan	Sets the text appearance using the given `TextAppearance` attributes.
TypefaceSpan	Span that updates the typeface of the text it's attached to.

The classes that affect character-level text formatting in a way that triggers a text layout update when one is added or removed must implement this interface. This interface also includes UpdateAppearance since such a change implicitly also impacts the appearance.

Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.

Last updated 2026-08-03 UTC.

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