EmojiCompat.Config

public abstract class EmojiCompat.Config

Known direct subclasses
BundledEmojiCompatConfig

EmojiCompat.Config implementation that loads the metadata using AssetManager and bundled resources.
FontRequestEmojiCompatConfig

EmojiCompat.Config implementation that asynchronously fetches the required font and the metadata using a FontRequest.

Configuration class for EmojiCompat. Changes to the values will be ignored after init is called.

See also
init

Summary

Protected constructors

Default constructor.

Public methods
EmojiCompat.Config

Registers an initialization callback.
EmojiCompat.Config

Sets the color used as emoji span indicator.
EmojiCompat.Config
setEmojiSpanIndicatorEnabled(boolean emojiSpanIndicatorEnabled)

Determines whether a background will be drawn for the emojis that are found and replaced by EmojiCompat.
@NonNull EmojiCompat.Config

The interface that is used by EmojiCompat in order to check if a given emoji can be rendered by the system.
EmojiCompat.Config

Determines the strategy to start loading the metadata.
EmojiCompat.Config
setReplaceAll(boolean replaceAll)

Determines whether EmojiCompat should replace all the emojis it finds with the EmojiSpans.
EmojiCompat.Config
setUseEmojiAsDefaultStyle(boolean useEmojiAsDefaultStyle)

Determines whether EmojiCompat should use the emoji presentation style for emojis that have text style as default.
EmojiCompat.Config
setUseEmojiAsDefaultStyle(
    boolean useEmojiAsDefaultStyle,
    @Nullable List<Integer> emojiAsDefaultStyleExceptions
)
EmojiCompat.Config

Unregisters a callback that was added before.

Protected methods
final EmojiCompat.MetadataRepoLoader

Returns the MetadataRepoLoader.

Protected constructors

Config

Added in 1.0.0
protected Config(@NonNull EmojiCompat.MetadataRepoLoader metadataLoader)

Default constructor.

Parameters
@NonNull EmojiCompat.MetadataRepoLoader metadataLoader

MetadataRepoLoader instance, cannot be null

Public methods

registerInitCallback

Added in 1.0.0
public EmojiCompat.Config registerInitCallback(@NonNull EmojiCompat.InitCallback initCallback)

Registers an initialization callback.

Parameters
@NonNull EmojiCompat.InitCallback initCallback

the initialization callback to register, cannot be null
Returns
EmojiCompat.Config

EmojiCompat.Config instance

setEmojiSpanIndicatorColor

Added in 1.0.0
public EmojiCompat.Config setEmojiSpanIndicatorColor(@ColorInt int color)

Sets the color used as emoji span indicator. The default value is Color.GREEN.

See also
setEmojiSpanIndicatorEnabled

setEmojiSpanIndicatorEnabled

Added in 1.0.0
public EmojiCompat.Config setEmojiSpanIndicatorEnabled(boolean emojiSpanIndicatorEnabled)

Determines whether a background will be drawn for the emojis that are found and replaced by EmojiCompat. Should be used only for debugging purposes. The indicator color can be set using setEmojiSpanIndicatorColor.

Parameters
boolean emojiSpanIndicatorEnabled

when true a background is drawn for each emoji that is replaced

setGlyphChecker

Added in 1.2.0-alpha03
public @NonNull EmojiCompat.Config setGlyphChecker(@NonNull EmojiCompat.GlyphChecker glyphChecker)

The interface that is used by EmojiCompat in order to check if a given emoji can be rendered by the system.

Parameters
@NonNull EmojiCompat.GlyphChecker glyphChecker

GlyphChecker instance to be used.

setMetadataLoadStrategy

Added in 1.0.0
public EmojiCompat.Config setMetadataLoadStrategy(int strategy)

Determines the strategy to start loading the metadata. By default EmojiCompat will start loading the metadata during init. When set to LOAD_STRATEGY_MANUAL, you should call load to initiate metadata loading.

Default implementations of EmojiCompat.MetadataRepoLoader start a thread during their load functions. Just instantiating and starting a thread might take time especially in older devices. Since init has to be called before any EmojiCompat widgets are inflated, this results in time spent either on your Application.onCreate or Activity .onCreate. If you'd like to gain more control on when to start loading the metadata and be able to call init with absolute minimum time cost you can use LOAD_STRATEGY_MANUAL. When set to LOAD_STRATEGY_MANUAL, EmojiCompat will wait for load to be called by the developer in order to start loading metadata, therefore you should call load to initiate metadata loading. load can be called from any thread. 
EmojiCompat.Config config = new FontRequestEmojiCompatConfig(context, fontRequest)
        .setMetadataLoadStrategy(EmojiCompat.LOAD_STRATEGY_MANUAL);

// EmojiCompat will not start loading metadata and MetadataRepoLoader#load(...)
// will not be called
EmojiCompat.init(config);

// At any time (i.e. idle time or executorService is ready)
// call EmojiCompat#load() to start loading metadata.
executorService.execute(() -> EmojiCompat.get().load());
Parameters
int strategy

one of LOAD_STRATEGY_DEFAULT, LOAD_STRATEGY_MANUAL

setReplaceAll

Added in 1.0.0
public EmojiCompat.Config setReplaceAll(boolean replaceAll)

Determines whether EmojiCompat should replace all the emojis it finds with the EmojiSpans. By default EmojiCompat tries its best to understand if the system already can render an emoji and do not replace those emojis.

Parameters
boolean replaceAll

replace all emojis found with EmojiSpans
Returns
EmojiCompat.Config

EmojiCompat.Config instance

setUseEmojiAsDefaultStyle

Added in 1.0.0
public EmojiCompat.Config setUseEmojiAsDefaultStyle(boolean useEmojiAsDefaultStyle)

Determines whether EmojiCompat should use the emoji presentation style for emojis that have text style as default. By default, the text style would be used, unless these are followed by the U+FE0F variation selector. Details about emoji presentation and text presentation styles can be found here: http://unicode.org/reports/tr51/#Presentation_Style If useEmojiAsDefaultStyle is true, the emoji presentation style will be used for all emojis, including potentially unexpected ones (such as digits or other keycap emojis). If this is not the expected behaviour, method setUseEmojiAsDefaultStyle can be used to specify the exception emojis that should be still presented as text style.

Parameters
boolean useEmojiAsDefaultStyle

whether to use the emoji style presentation for all emojis that would be presented as text style by default

setUseEmojiAsDefaultStyle

Added in 1.0.0
public EmojiCompat.Config setUseEmojiAsDefaultStyle(
    boolean useEmojiAsDefaultStyle,
    @Nullable List<Integer> emojiAsDefaultStyleExceptions
)
Parameters
@Nullable List<Integer> emojiAsDefaultStyleExceptions

Contains the exception emojis which will be still presented as text style even if the useEmojiAsDefaultStyle flag is set to true. This list will be ignored if useEmojiAsDefaultStyle is false. Note that emojis with default emoji style presentation will remain emoji style regardless the value of useEmojiAsDefaultStyle or whether they are included in the exceptions list or not. When no exception is wanted, the method setUseEmojiAsDefaultStyle should be used instead.
See also
setUseEmojiAsDefaultStyle

unregisterInitCallback

Added in 1.0.0
public EmojiCompat.Config unregisterInitCallback(@NonNull EmojiCompat.InitCallback initCallback)

Unregisters a callback that was added before.

Parameters
@NonNull EmojiCompat.InitCallback initCallback

the initialization callback to be removed, cannot be null
Returns
EmojiCompat.Config

EmojiCompat.Config instance

Protected methods

getMetadataRepoLoader

Added in 1.0.0
protected final EmojiCompat.MetadataRepoLoader getMetadataRepoLoader()

Returns the MetadataRepoLoader.