优化

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

@@ -14,6 +14,7 @@ import io.legado.app.utils.FileUtils
 import io.legado.app.utils.LogUtils
 import io.legado.app.utils.MD5Utils
 import io.legado.app.utils.postEvent
+import kotlinx.coroutines.ensureActive
 import kotlinx.coroutines.isActive
 import org.jetbrains.anko.collections.forEachWithIndex
 import java.io.File
@@ -103,7 +104,7 @@ class HttpReadAloudService : BaseReadAloudService(),
                                     speakText = item,
                                     speakSpeed = AppConfig.ttsSpeechRate
                                 ).getByteArray().let { bytes ->
-                                    if (isActive) {
+                                    ensureActive()
                                     val file = getSpeakFileAsMd5(fileName)
                                     //val file = getSpeakFile(index)
                                     file.writeBytes(bytes)
@@ -113,9 +114,6 @@ class HttpReadAloudService : BaseReadAloudService(),
                                         val fis = FileInputStream(file)
                                         playAudio(fis.fd)
                                     }
-                                    } else {
-                                        removeSpeakCacheFile(fileName)
-                                    }
                                 }
                             } catch (e: SocketTimeoutException) {
                                 removeSpeakCacheFile(fileName)