android - RecognitionListener doesn't call onEndOfSpeech immediately after user stops talking? -

so using speechrecognizer along recognitionlistener recognize user speech. works fine problem when tested noticed doesn't call onendofspeech after finishes talking. waits around 7 10 seconds , onendofspeech , onresult called. don' know reason delay.

here code:

    public class mainactivity extends appcompatactivity  {     protected static final int request_ok = 1;     speechrecognizer sr;     textview mtext;     @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);         mtext = (textview) findviewbyid(r.id.text1);         recognitionlistener recognitionlistener=new recognitionlistener() {             @override             public void onreadyforspeech(bundle bundle) {            toast.maketext(mainactivity.this,"start takling",toast.length_short).show();             }              @override             public void onbeginningofspeech() {              }              @override             public void onrmschanged(float v) {              }              @override             public void onbufferreceived(byte[] bytes) {              }              @override             public void onendofspeech() {                 toast.maketext(mainactivity.this,"onendofspeech",toast.length_short).show();             }              @override             public void onerror(int i) {              }              @override             public void onresults(bundle bundle) {                 toast.maketext(mainactivity.this,"onresults",toast.length_short).show();                 arraylist<string> voiceresults =                         bundle.getstringarraylist(speechrecognizer.results_recognition);                 if (voiceresults != null) {                     string text = voiceresults.get(0);                     toast.maketext(mainactivity.this,text,toast.length_short).show();                 }               }              @override             public void onpartialresults(bundle bundle) {              }              @override             public void onevent(int i, bundle bundle) {              }         };         sr = speechrecognizer.createspeechrecognizer(this);         sr.setrecognitionlistener(recognitionlistener);          findviewbyid(r.id.button1).setonclicklistener( new view.onclicklistener() {             @override             public void onclick(view v)             {                 intent intent = new intent(recognizerintent.action_recognize_speech);                 intent.putextra(recognizerintent.extra_language_model, "en-us");                  sr.startlistening(intent);             }         });     }       @override     protected void ondestroy() {         super.ondestroy();         sr.destroy();     }     } 

activity_main.xml:

        <relativelayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     tools:context=".mainactivity" >      <textview         android:id="@+id/text1"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignparenttop="true"         android:layout_centerhorizontal="true"         android:layout_margintop="132dp"         android:text="..." ></textview>      <imagebutton         android:id="@+id/button1"         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:layout_below="@+id/text1"         android:layout_centerhorizontal="true"         android:layout_margin="10dp"         android:layout_margintop="37dp"         android:src="@android:drawable/ic_btn_speak_now" ></imagebutton>          </relativelayout>