diff --git a/app/src/main/java/io/legado/app/help/book/BookHelp.kt b/app/src/main/java/io/legado/app/help/book/BookHelp.kt
index 918daedba..88f82937b 100644
--- a/app/src/main/java/io/legado/app/help/book/BookHelp.kt
+++ b/app/src/main/java/io/legado/app/help/book/BookHelp.kt
@@ -86,9 +86,14 @@ object BookHelp {
         bookChapter: BookChapter,
         content: String
     ) {
-        saveText(book, bookChapter, content)
-        saveImages(bookSource, book, bookChapter, content)
-        postEvent(EventBus.SAVE_CONTENT, Pair(book, bookChapter))
+        try {
+            saveText(book, bookChapter, content)
+            saveImages(bookSource, book, bookChapter, content)
+            postEvent(EventBus.SAVE_CONTENT, Pair(book, bookChapter))
+        } catch (e: Exception) {
+            e.printStackTrace()
+            AppLog.put("保存正文失败 ${book.name} ${bookChapter.title}", e)
+        }
     }
 
     fun saveText(
diff --git a/app/src/main/java/io/legado/app/help/http/cronet/BodyUploadProvider.kt b/app/src/main/java/io/legado/app/help/http/cronet/BodyUploadProvider.kt
index 860a24648..00b2a5145 100644
--- a/app/src/main/java/io/legado/app/help/http/cronet/BodyUploadProvider.kt
+++ b/app/src/main/java/io/legado/app/help/http/cronet/BodyUploadProvider.kt
@@ -7,13 +7,10 @@ import org.chromium.net.UploadDataSink
 import java.io.IOException
 import java.nio.ByteBuffer
 
-class BodyUploadProvider(body: RequestBody) : UploadDataProvider(), AutoCloseable {
-    private val body: RequestBody
-    private val buffer: Buffer?
+class BodyUploadProvider(private val body: RequestBody) : UploadDataProvider(), AutoCloseable {
+    private val buffer = Buffer()
 
     init {
-        buffer = Buffer()
-        this.body = body
         try {
             body.writeTo(buffer)
         } catch (e: IOException) {
@@ -32,7 +29,7 @@ class BodyUploadProvider(body: RequestBody) : UploadDataProvider(), AutoCloseabl
         var read: Int
         var bytesRead = 0
         while (bytesRead == 0) {
-            read = buffer!!.read(byteBuffer)
+            read = buffer.read(byteBuffer)
             bytesRead += read
         }
         uploadDataSink.onReadSucceeded(false)
@@ -40,12 +37,14 @@ class BodyUploadProvider(body: RequestBody) : UploadDataProvider(), AutoCloseabl
 
     @Throws(IOException::class)
     override fun rewind(uploadDataSink: UploadDataSink) {
+        buffer.clear()
+        body.writeTo(buffer)
         uploadDataSink.onRewindSucceeded()
     }
 
     @Throws(IOException::class)
     override fun close() {
-        buffer?.close()
+        buffer.close()
         super.close()
     }
-}
\ No newline at end of file
+}
diff --git a/app/src/main/java/io/legado/app/ui/book/read/page/PageView.kt b/app/src/main/java/io/legado/app/ui/book/read/page/PageView.kt
index 59d5efe28..d350b0eca 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/page/PageView.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/page/PageView.kt
@@ -18,10 +18,7 @@ import io.legado.app.ui.book.read.page.entities.TextPage
 import io.legado.app.ui.book.read.page.entities.TextPos
 import io.legado.app.ui.book.read.page.provider.ChapterProvider
 import io.legado.app.ui.widget.BatteryView
-import io.legado.app.utils.activity
-import io.legado.app.utils.dpToPx
-import io.legado.app.utils.statusBarHeight
-import io.legado.app.utils.visible
+import io.legado.app.utils.*
 import splitties.views.backgroundColor
 import java.util.*
 
@@ -223,11 +220,7 @@ class PageView(context: Context) : FrameLayout(context) {
      * 更新背景
      */
     fun upBg() {
-        if (ReadBookConfig.bgAlpha < 100) {
-            binding.vwRoot.backgroundColor = ReadBookConfig.bgMeanColor
-        } else {
-            binding.vwRoot.background = null
-        }
+        binding.vwRoot.backgroundColor = ReadBookConfig.bgMeanColor
         binding.vwBg.background = ReadBookConfig.bg
         upBgAlpha()
     }