Added in API level 3

UpdateAppearance

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Kotlin |Java

interface UpdateAppearance

android.text.style.UpdateAppearance

Known Direct Subclasses BackgroundColorSpan, ClickableSpan, ForegroundColorSpan, MaskFilterSpan, StrikethroughSpan, UnderlineSpan, UpdateLayout BackgroundColorSpan Changes the background color of the text to which the span is attached. ClickableSpan If an object of this type is attached to the text of a TextView with a movement method of LinkMovementMethod, the affected spans of text can be selected. ForegroundColorSpan Changes the color of the text to which the span is attached. MaskFilterSpan Span that allows setting a MaskFilter to the text it's attached to. StrikethroughSpan A span that strikes through the text it's attached to. UnderlineSpan A span that underlines the text it's attached to. UpdateLayout 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.

Known Indirect Subclasses AbsoluteSizeSpan, DynamicDrawableSpan, ImageSpan, LocaleSpan, MetricAffectingSpan, RelativeSizeSpan, ReplacementSpan, ScaleXSpan, StyleSpan, SubscriptSpan, SuperscriptSpan, TextAppearanceSpan, and 3 others. 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. TextLinks.TextLinkSpan A ClickableSpan for a TextLink. TypefaceSpan Span that updates the typeface of the text it's attached to. URLSpan Implementation of the ClickableSpan that allows setting a url string.

The classes that affect character-level text in a way that modifies their appearance when one is added or removed must implement this interface. Note that if the class also impacts size or other metrics, it should instead implement UpdateLayout.

Summary