Fixed - Make mobile app stop listening to user based on server flag.

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

@@ -45,7 +45,7 @@ public class Speaker implements TextToSpeech.OnInitListener {
         }
     }
 
-    public void speak(String text) {
+    public void speak(String text, String utteranceId) {
         //remove all special characters.
         String speakText = text.replaceAll("--*", " ");
         // Speak only if the TTS is ready
@@ -54,7 +54,7 @@ public class Speaker implements TextToSpeech.OnInitListener {
             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, "" + System.currentTimeMillis());
+            hash.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, utteranceId);
             tts.speak(Util.fromHtml(speakText).toString(), TextToSpeech.QUEUE_ADD, hash);
         }
     }

app/src/main/java/com/vsoft/servicenow/ui/ChatActivity.java

@@ -91,6 +91,8 @@ public class ChatActivity extends AppCompatActivity implements OnDSListener, OnD
     /*According to this flag we'll close the conversation from mobile side. We'll get this flag in chat response*/
     private boolean mIsConversationEnd;
 
+    private String mNewMessageUtteranceId;
+
     @Override
     public boolean onOptionsItemSelected(MenuItem menuItem) {
         if (menuItem.getItemId() == android.R.id.home) {
@@ -228,7 +230,7 @@ public class ChatActivity extends AppCompatActivity implements OnDSListener, OnD
                 droidSpeech.closeDroidSpeechOperations();
             }
             speaker.allow(true);
-            speaker.speak(message);
+            speaker.speak(message, mNewMessageUtteranceId);
         }
 
         mMessages.add(chatBotHistory);
@@ -338,21 +340,23 @@ public class ChatActivity extends AppCompatActivity implements OnDSListener, OnD
                         username = data.getString(NEW_MESSAGE_USER_NAME);
                         message = data.getString(NEW_MESSAGE_MESSAGE);
                         mIsConversationEnd = data.getBoolean(IS_END_OF_INTENT);
+                        mNewMessageUtteranceId = String.valueOf(System.currentTimeMillis());
                     } catch (JSONException e) {
                         CatalogueLog.e(e.getMessage());
                         return;
                     }
 
-                    ChatBotUser localChatBotUser = ChatBotUserManager.getChatBotUsersByName(username);
-                    if(localChatBotUser == null) {
-                        ChatBotUser chatBotUser = ChatBotUser.ChatBotUserBuilder.aChatBotUser()
-                                                    .setName(username)
-                                                    .setUserSysId(ChatBotUser.CHAT_BOT_SYS_ID)
-                                                    .build();
-                        ChatBotUserManager.save(chatBotUser);
+                    if(!message.isEmpty()) {
+                        ChatBotUser localChatBotUser = ChatBotUserManager.getChatBotUsersByName(username);
+                        if (localChatBotUser == null) {
+                            ChatBotUser chatBotUser = ChatBotUser.ChatBotUserBuilder.aChatBotUser()
+                                    .setName(username)
+                                    .setUserSysId(ChatBotUser.CHAT_BOT_SYS_ID)
+                                    .build();
+                            ChatBotUserManager.save(chatBotUser);
+                        }
+                        addMessage(username, message);
                     }
-
-                    addMessage(username, message);
                 }
             });
         }
@@ -458,6 +462,18 @@ public class ChatActivity extends AppCompatActivity implements OnDSListener, OnD
                 speaker.getTTS().setOnUtteranceProgressListener(new UtteranceProgressListener() {
                     @Override
                     public void onDone(String utteranceId) {
+
+                        /*Start Code
+                        Sometime speaker is not getting stop that's why it is breaking.
+                        * We need to forcefully stop it.*/
+                        long  utteranceIdLong = Long.parseLong(utteranceId);
+                        long messageUtteranceId = Long.parseLong(mNewMessageUtteranceId);
+                        if(utteranceIdLong == messageUtteranceId
+                                && speaker != null && speaker.isSpeaking()) {
+                            speaker.stop();
+                        }
+                        /*End Code*/
+
                         if (!mIsConversationEnd && (!speaker.isSpeaking() && droidSpeech != null)) {
                             runOnUiThread(new Runnable() {
                                 @Override