Fixed - TTS two messages speak issue.

app/build.gradle

@@ -31,7 +31,7 @@ android {
 
     defaultConfig {
         applicationId "com.vsoft.servicenow"
-        minSdkVersion 16
+        minSdkVersion 15
         targetSdkVersion 27
         versionCode 1
         versionName "0.0.29"

app/src/arrow/java/com/vsoft/servicenow/chat/Speaker.java

@@ -3,9 +3,6 @@ package com.vsoft.servicenow.chat;
 import android.content.Context;
 import android.media.AudioManager;
 import android.speech.tts.TextToSpeech;
-import android.speech.tts.UtteranceProgressListener;
-import android.util.Log;
-
 import com.vsoft.servicenow.utils.Util;
 
 import java.util.HashMap;
@@ -47,14 +44,14 @@ public class Speaker implements TextToSpeech.OnInitListener {
         }
     }
 
-    public void speak(String text){
+    public void speak(String text) {
         // Speak only if the TTS is ready
         // and the user has allowed speech
-        if(ready && allowed) {
-            HashMap<String, String> hash = new HashMap<String,String>();
+        if (ready && allowed) {
+            HashMap<String, String> hash = new HashMap<String, String>();
             hash.put(TextToSpeech.Engine.KEY_PARAM_STREAM,
                     String.valueOf(AudioManager.STREAM_MUSIC));
-            hash.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, "UniqueID");
+            hash.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, "" + System.currentTimeMillis());
             tts.speak(Util.fromHtml(text).toString(), TextToSpeech.QUEUE_ADD, hash);
         }
     }
@@ -63,16 +60,16 @@ public class Speaker implements TextToSpeech.OnInitListener {
         return tts.isSpeaking();
     }
 
-    public void stop(){
+    public void stop() {
         tts.stop();
     }
 
-    public void pause(int duration){
+    public void pause(int duration) {
         tts.playSilence(duration, TextToSpeech.QUEUE_ADD, null);
     }
 
     // Free up resources
-    public void destroy(){
+    public void destroy() {
         tts.shutdown();
     }
 

app/src/arrow/java/com/vsoft/servicenow/speechRecognizer/DroidSpeech.java

@@ -246,8 +246,6 @@ public class DroidSpeech {
             if (play) {
                 recognitionProgressView.play();
                 speechProgressAlertDialog.show();
-
-//                confirmLayout.setVisibility(View.GONE);
             } else {
                 recognitionProgressView.stop();
                 speechProgressAlertDialog.cancel();