# UpdateLayout Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) # UpdateLayout *** ** * ** *** Kotlin\|[Java](https://developer.android.com/reference/android/text/style/UpdateLayout "View this page in Java") ``` interface UpdateLayout : UpdateAppearance ``` |--------------------------------------------------------------------------------------------------------------------| | [android.text.style.UpdateLayout](https://developer.android.com/reference/kotlin/android/text/style/UpdateLayout#) | |--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Known Direct Subclasses [MetricAffectingSpan](https://developer.android.com/reference/kotlin/android/text/style/MetricAffectingSpan) |--------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------| | [MetricAffectingSpan](https://developer.android.com/reference/kotlin/android/text/style/MetricAffectingSpan) | The classes that affect character-level text formatting in a way that changes the width or height of characters extend this class. | | 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| Known Indirect Subclasses [AbsoluteSizeSpan](https://developer.android.com/reference/kotlin/android/text/style/AbsoluteSizeSpan),[DynamicDrawableSpan](https://developer.android.com/reference/kotlin/android/text/style/DynamicDrawableSpan),[ImageSpan](https://developer.android.com/reference/kotlin/android/text/style/ImageSpan),[LocaleSpan](https://developer.android.com/reference/kotlin/android/text/style/LocaleSpan),[RelativeSizeSpan](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan),[ReplacementSpan](https://developer.android.com/reference/kotlin/android/text/style/ReplacementSpan),[ScaleXSpan](https://developer.android.com/reference/kotlin/android/text/style/ScaleXSpan),[StyleSpan](https://developer.android.com/reference/kotlin/android/text/style/StyleSpan),[SubscriptSpan](https://developer.android.com/reference/kotlin/android/text/style/SubscriptSpan),[SuperscriptSpan](https://developer.android.com/reference/kotlin/android/text/style/SuperscriptSpan),[TextAppearanceSpan](https://developer.android.com/reference/kotlin/android/text/style/TextAppearanceSpan),[TypefaceSpan](https://developer.android.com/reference/kotlin/android/text/style/TypefaceSpan) |--------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [AbsoluteSizeSpan](https://developer.android.com/reference/kotlin/android/text/style/AbsoluteSizeSpan) | A span that changes the size of the text it's attached to. | | [DynamicDrawableSpan](https://developer.android.com/reference/kotlin/android/text/style/DynamicDrawableSpan) | Span that replaces the text it's attached to with a[Drawable](https://developer.android.com/reference/kotlin/android/graphics/drawable/Drawable.html#)that can be aligned with the bottom or with the baseline of the surrounding text. | | [ImageSpan](https://developer.android.com/reference/kotlin/android/text/style/ImageSpan) | Span that replaces the text it's attached to with a[Drawable](https://developer.android.com/reference/kotlin/android/graphics/drawable/Drawable.html#)that can be aligned with the bottom or with the baseline of the surrounding text. | | [LocaleSpan](https://developer.android.com/reference/kotlin/android/text/style/LocaleSpan) | Changes the[Locale](https://developer.android.com/reference/kotlin/java/util/Locale.html#)of the text to which the span is attached. | | [RelativeSizeSpan](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan) | Uniformly scales the size of the text to which it's attached by a certain proportion. | | [ReplacementSpan](https://developer.android.com/reference/kotlin/android/text/style/ReplacementSpan) |
| | [ScaleXSpan](https://developer.android.com/reference/kotlin/android/text/style/ScaleXSpan) | Scales horizontally the size of the text to which it's attached by a certain factor. | | [StyleSpan](https://developer.android.com/reference/kotlin/android/text/style/StyleSpan) | Span that allows setting the style of the text it's attached to. | | [SubscriptSpan](https://developer.android.com/reference/kotlin/android/text/style/SubscriptSpan) | The span that moves the position of the text baseline lower. | | [SuperscriptSpan](https://developer.android.com/reference/kotlin/android/text/style/SuperscriptSpan) | The span that moves the position of the text baseline higher. | | [TextAppearanceSpan](https://developer.android.com/reference/kotlin/android/text/style/TextAppearanceSpan) | Sets the text appearance using the given[TextAppearance](https://developer.android.com/reference/kotlin/android/R.styleable.html#TextAppearance:kotlin.IntArray)attributes. | | [TypefaceSpan](https://developer.android.com/reference/kotlin/android/text/style/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](https://developer.android.com/reference/kotlin/android/text/style/UpdateAppearance)since such a change implicitly also impacts the appearance. ## Summary