Android APIs
Added in API level 3
package

android.speech

Interfaces

RecognitionListener Used for receiving notifications from the SpeechRecognizer when the recognition related events occur. 

Classes

RecognitionService This class provides a base class for recognition service implementations. 
RecognitionService.Callback This class receives callbacks from the speech recognition service and forwards them to the user. 
RecognizerIntent Constants for supporting speech recognition through starting an Intent  
RecognizerResultsIntent Constants for intents related to showing speech recognition results. 
SpeechRecognizer This class provides access to the speech recognition service.