added in API level 26

TextClassificationManager

public final class TextClassificationManager
extends Object

java.lang.Object
   ↳ android.view.textclassifier.TextClassificationManager


Interface to the text classification service.

Instances of this class must be obtained using Context.getSystemService(Class) with the argument TextClassificationManager.class or Context.getSystemService(String) with the argument Context.TEXT_CLASSIFICATION_SERVICE.

Summary

Public methods

TextClassifier createTextClassificationSession(TextClassificationContext classificationContext)

Call this method to start a text classification session with the given context.

TextClassifier getTextClassifier()

Returns the text classifier that was set via setTextClassifier(TextClassifier).

void setTextClassificationSessionFactory(TextClassificationSessionFactory factory)

Sets a TextClassificationSessionFactory to be used to create session-aware TextClassifiers.

void setTextClassifier(TextClassifier textClassifier)

Sets the text classifier.

Inherited methods

Public methods

createTextClassificationSession

TextClassifier createTextClassificationSession (TextClassificationContext classificationContext)

Call this method to start a text classification session with the given context. A session is created with a context helping the classifier better understand what the user needs and consists of queries and feedback events. The queries are directly related to providing useful functionality to the user and the events are a feedback loop back to the classifier helping it learn and better serve future queries.

All interactions with the returned classifier are considered part of a single session and are logically grouped. For example, when a text widget is focused all user interactions around text editing (selection, editing, etc) can be grouped together to allow the classifier get better.

Parameters
classificationContext TextClassificationContext: The context in which classification would occur

This value must never be null.

Returns
TextClassifier An instance to perform classification in the given context

This value will never be null.

getTextClassifier

added in API level 26
TextClassifier getTextClassifier ()

Returns the text classifier that was set via setTextClassifier(TextClassifier). If this is null, this method returns a default text classifier (i.e. either the system text classifier if one exists, or a local text classifier running in this app.)

Returns
TextClassifier

This value will never be null.

setTextClassificationSessionFactory

void setTextClassificationSessionFactory (TextClassificationSessionFactory factory)

Sets a TextClassificationSessionFactory to be used to create session-aware TextClassifiers.

Parameters
factory TextClassificationSessionFactory: the textClassification session factory. If this is null, the default factory will be used.

setTextClassifier

added in API level 26
void setTextClassifier (TextClassifier textClassifier)

Sets the text classifier. Set to null to use the system default text classifier. Set to NO_OP to disable text classifier features.

Parameters
textClassifier TextClassifier

This value may be null.