优化

app/src/main/java/io/legado/app/service/HttpReadAloudService.kt

@@ -68,9 +68,10 @@ class HttpReadAloudService : BaseReadAloudService(),
             ReadBook.readAloud()
         } else {
             super.play()
-            ReadAloud.httpTTS?.let {
+            kotlin.runCatching {
+                val tts = ReadAloud.httpTTS ?: throw NoStackTraceException("httpTts is null")
                 val fileName =
-                    md5SpeakFileName(it.url, AppConfig.ttsSpeechRate.toString(), contentList[nowSpeak])
+                    md5SpeakFileName(tts.url, AppConfig.ttsSpeechRate.toString(), contentList[nowSpeak])
                 if (nowSpeak == 0) {
                     downloadAudio()
                 } else {
@@ -81,6 +82,8 @@ class HttpReadAloudService : BaseReadAloudService(),
                         downloadAudio()
                     }
                 }
+            }.onFailure {
+                toastOnUi("朗读出错:${it.localizedMessage}")
             }
         }
     }

app/src/main/java/io/legado/app/service/TTSReadAloudService.kt

@@ -11,6 +11,7 @@ import io.legado.app.constant.EventBus
 import io.legado.app.help.AppConfig
 import io.legado.app.help.MediaHelp
 import io.legado.app.lib.dialogs.SelectItem
+import io.legado.app.model.NoStackTraceException
 import io.legado.app.model.ReadBook
 import io.legado.app.utils.*
 import java.util.*
@@ -75,12 +76,11 @@ class TTSReadAloudService : BaseReadAloudService(), TextToSpeech.OnInitListener
             super.play()
             kotlin.runCatching {
                 MediaHelp.playSilentSound(this@TTSReadAloudService)
-                textToSpeech!!.let {
+                val tts = textToSpeech ?: throw NoStackTraceException("tts is null")
-                    it.speak("", TextToSpeech.QUEUE_FLUSH, null, null)
+                tts.speak("", TextToSpeech.QUEUE_FLUSH, null, null)
                 for (i in nowSpeak until contentList.size) {
                     val text = contentList[i].replace(AppPattern.notReadAloudRegex, "")
-                        it.speak(text, TextToSpeech.QUEUE_ADD, null, AppConst.APP_TAG + i)
+                    tts.speak(text, TextToSpeech.QUEUE_ADD, null, AppConst.APP_TAG + i)
-                    }
                 }
             }.onFailure {
                 AppLog.put("tts朗读出错", it)