增加判断，当外部传入的tts内容为空的时候不进行播放

modules/mogo-module-hmi/src/main/java/com/mogo/module/hmi/ui/MoGoWarningFragment.kt

@@ -1,6 +1,7 @@
 package com.mogo.module.hmi.ui
 
 import android.animation.Animator
+import android.text.TextUtils
 import android.view.Gravity
 import android.view.View
 import android.view.WindowManager
@@ -56,8 +57,10 @@ class MoGoWarningFragment : MvpFragment<MoGoWarningContract.View?, WaringPresent
                 alertContent ?: WarningUtils.getWarningIcon(v2xType)[1] as String
             )
 
-            AIAssist.getInstance(activity)
-                .speakTTSVoice(ttsContent ?: WarningUtils.getWarningIcon(v2xType)[2] as String)
+            if (!TextUtils.isEmpty(ttsContent)) {
+                AIAssist.getInstance(activity)
+                    .speakTTSVoice(ttsContent)
+            }
 
             WarningFloat.with(it)
                 .setTag(tag)