Summary: Nested Classes | Methods | Inherited Methods

TextClassification

Kotlin |Java

public final class TextClassification
extends Object

java.lang.Object
↳	androidx.textclassifier.TextClassification

---

Information for generating a widget to handle classified text.

A TextClassification object contains icons, labels, and intents that may be used to build a widget that can be used to act on classified text.

e.g. building a menu that allows the user how to act on a piece of text:

// Called preferably outside the UiThread.
   TextClassification classification = textClassifier.classifyText(allText, 10, 25);

   // Called on the UiThread.
   for (RemoteActionCompat action : classification.getActions()) {
       MenuItem item = menu.add(action.getTitle());
       item.setContentDescription(action.getContentDescription());
       item.setOnMenuItemClickListener(v -> action.getActionIntent().send());
       if (action.shouldShowIcon()) {
           item.setIcon(action.getIcon().loadDrawable(context));
       }
   }
 

Summary

Nested classes
class	TextClassification.Builder Builder for building TextClassification objects.
class	TextClassification.Request A request object for generating TextClassification.

Public methods
static TextClassification	createFromBundle(Bundle bundle) Extracts a classification from a bundle that was added using toBundle().
List<RemoteActionCompat>	getActions() Returns a list of actions that may be performed on the text.
float	getConfidenceScore(String entity) Returns the confidence score for the specified entity.
String	getEntityType(int index) Returns the entity type at the specified index.
int	getEntityTypeCount() Returns the number of entity types found in the classified text.
Bundle	getExtras() Returns the extended, vendor specific data.
String	getId() Returns the id for this object.
CharSequence	getText() Gets the classified text.
Bundle	toBundle() Adds this classification to a Bundle that can be read back with the same parameters to createFromBundle(Bundle).
String	toString()

Inherited methods
From class java.lang.Object Object clone() boolean equals(Object arg0) void finalize() final Class<?> getClass() int hashCode() final void notify() final void notifyAll() String toString() final void wait(long arg0, int arg1) final void wait(long arg0) final void wait()

Public methods

createFromBundle

public static TextClassification createFromBundle (Bundle bundle)

Extracts a classification from a bundle that was added using toBundle().

Parameters
bundle	Bundle

Returns
TextClassification

Throws
IllegalArgumentException

getActions

public List<RemoteActionCompat> getActions ()

Returns a list of actions that may be performed on the text. The list is ordered based on the likelihood that a user will use the action, with the most likely action appearing first.

Returns
List<RemoteActionCompat>

getConfidenceScore

public float getConfidenceScore (String entity)

Returns the confidence score for the specified entity. The value ranges from 0 (low confidence) to 1 (high confidence). 0 indicates that the entity was not found for the classified text.

Parameters
entity	String

Returns
float	Value is between 0.0 and 1.0 inclusive.

getEntityType

public String getEntityType (int index)

Returns the entity type at the specified index. Entities are ordered from high confidence to low confidence.

Parameters
index	int

Returns
String

Throws
IndexOutOfBoundsException	if the specified index is out of range.

See also:

• for the number of entities available.

getEntityTypeCount

public int getEntityTypeCount ()

Returns the number of entity types found in the classified text.

Returns
int

getExtras

public Bundle getExtras ()

Returns the extended, vendor specific data.

NOTE: Each call to this method returns a new bundle copy so clients should prefer to hold a reference to the returned bundle rather than frequently calling this method. Avoid updating the content of this bundle. On pre-O devices, the values in the Bundle are not deep copied.

Returns
Bundle

getId

public String getId ()

Returns the id for this object.

Returns
String

getText

public CharSequence getText ()

Gets the classified text.

Returns
CharSequence

toBundle

public Bundle toBundle ()

Adds this classification to a Bundle that can be read back with the same parameters to createFromBundle(Bundle).

Returns
Bundle

toString

public String toString ()

Returns
String

• Interfaces

  • TextLinks.SpanFactory

• Classes

  • TextClassification
  • TextClassification.Builder
  • TextClassification.Request
  • TextClassification.Request.Builder
  • TextClassificationContext
  • TextClassificationContext.Builder
  • TextClassificationManager
  • TextClassificationSessionId
  • TextClassifier
  • TextClassifier.EntityConfig
  • TextClassifier.EntityConfig.Builder
  • TextLinks
  • TextLinks.Builder
  • TextLinks.DefaultTextLinkSpan
  • TextLinks.Request
  • TextLinks.Request.Builder
  • TextLinks.TextLink
  • TextLinks.TextLinkSpan
  • TextLinks.TextLinkSpanData
  • TextLinksParams
  • TextLinksParams.Builder
  • TextSelection
  • TextSelection.Builder
  • TextSelection.Request
  • TextSelection.Request.Builder