@ -50,7 +50,7 @@ abstract class BaseReadAloudService : BaseService(),
var readAloudNumber: Int = 0
var textChapter: TextChapter? = null
var pageIndex = 0
private val dsRunnable: Runnable? = Runnable { doDs() }
private val dsRunnable: Runnable = Runnable { doDs() }
override fun onCreate() {
super.onCreate()