How to implement the Android Speech Recognition service Interface Recognitionservice

A previous article introduced the SpeechRecognizer class, which can be used as an external interface, and pass a componentname through intent to obtain a service that supports speech recognition, if some software for speech recognition is installed in a general user's phone, will have this ability, but if developers want to integrate their own speech recognition services through a company's SDK, they need to implement the Recognitionservice class.

This class is an abstract class that requires a developer to complete several of these abstract methods. Each method is described in the following code comment.

<pre name= "code" class= "Java" >public class Bdrecognitionservice extends Recognitionservice {       @Override    public void OnCreate () {        super.oncreate ();        Once the service is invoked    @Override    protected void onstartlistening (Intent recognizerintent, Callback mcallback) {      //This method specifically implements the third-party SDK access,//recognizerintent carries the upper layer of the parameters//mcallback need to be the third-party SDK results callback to the interface, is the upper layer and the third-party SDK Bridge} @Override protected void OnCancel (Callback listener) {//logoff} @Override public void OnDestroy () {//Destroy Super.ondestroy ();} @Overrid e protected void onstoplistening (Callback listener) {//pause}}

The callback interface has the following several

public class Callback {private final irecognitionlistener mlistener;        Private Callback (Irecognitionlistener listener) {Mlistener = listener; } public void Beginningofspeech () throws RemoteException {if (DBG) log.d (TAG, "BEGINNINGOFSPEEC            H ");        Mlistener.onbeginningofspeech ();         } public void bufferreceived (byte[] buffer) throws RemoteException {mlistener.onbufferreceived (buffer); The public void error (int error) throws RemoteException {Message.obtain (Mhandler, Msg_res            ET). Sendtotarget ();        Mlistener.onerror (Error); } public void Partialresults (Bundle partialresults) throws RemoteException {MLISTENER.ONPARTIALR        Esults (Partialresults); } public void Readyforspeech (Bundle params) throws remoteexception {Mlistener.onreadyforspeech (P        Arams); } public void results (Bundle results) Throws RemoteException {Message.obtain (Mhandler, Msg_reset). Sendtotarget ();        Mlistener.onresults (results);        } public void rmschanged (float rmsdb) throws RemoteException {mlistener.onrmschanged (RMSDB); }    }

An article will then show the service code that implements the Baidu speech recognition SDK.