diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
index 94284f0da..5b136c019 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
@@ -68,7 +68,9 @@ import io.legado.app.utils.*
 import kotlinx.coroutines.*
 import kotlinx.coroutines.Dispatchers.IO
 
-
+/**
+ * 阅读界面
+ */
 class ReadBookActivity : BaseReadBookActivity(),
     View.OnTouchListener,
     ReadView.CallBack,
diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt
index 339df6767..eee1250eb 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt
@@ -33,6 +33,9 @@ import io.legado.app.utils.toStringArray
 import io.legado.app.utils.toastOnUi
 import kotlinx.coroutines.Dispatchers.IO
 
+/**
+ * 阅读界面数据处理
+ */
 class ReadBookViewModel(application: Application) : BaseViewModel(application) {
     val permissionDenialLiveData = MutableLiveData<Int>()
     var isInitFinish = false