diff --git a/app/src/main/java/io/legado/app/ui/association/FileAssociationActivity.kt b/app/src/main/java/io/legado/app/ui/association/FileAssociationActivity.kt
index 704ca2c5a..e66087ffc 100644
--- a/app/src/main/java/io/legado/app/ui/association/FileAssociationActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/association/FileAssociationActivity.kt
@@ -101,7 +101,9 @@ class FileAssociationActivity :
         viewModel.errorLive.observe(this) {
             binding.rotateLoading.gone()
             toastOnUi(it)
-            finish()
+            handler.postDelayed(2000) {
+                finish()
+            }
         }
         viewModel.openBookLiveData.observe(this) {
             binding.rotateLoading.gone()
@@ -128,33 +130,24 @@ class FileAssociationActivity :
             }
         }
         intent.data?.let { data ->
-            if (data.isContentScheme()) {
-                if (data.canRead()) {
-                    viewModel.dispatchIntent(data)
-                } else {
-                    dispatchWithPermission(data)
-                }
-            } else if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.Q) {
-                dispatchWithPermission(data)
+            if (data.isContentScheme() && data.canRead()) {
+                viewModel.dispatchIntent(data)
             } else {
-                toastOnUi("由于安卓系统限制，请使用系统文件管理重新打开。")
-                finish()
+                PermissionsCompat.Builder()
+                    .addPermissions(*Permissions.Group.STORAGE)
+                    .rationale(R.string.tip_perm_request_storage)
+                    .onGranted {
+                        viewModel.dispatchIntent(data)
+                    }.onDenied {
+                        toastOnUi("请求存储权限失败。")
+                        handler.postDelayed(2000) {
+                            finish()
+                        }
+                    }.request()
             }
         } ?: finish()
     }
 
-    private fun dispatchWithPermission(data: Uri) {
-        PermissionsCompat.Builder()
-            .addPermissions(*Permissions.Group.STORAGE)
-            .rationale(R.string.tip_perm_request_storage)
-            .onGranted {
-                viewModel.dispatchIntent(data)
-            }.onDenied {
-                toastOnUi("请求存储权限失败。")
-                finish()
-            }.request()
-    }
-
     private fun importBook(uri: Uri) {
         if (uri.isContentScheme()) {
             val treeUriStr = AppConfig.defaultBookTreeUri
diff --git a/app/src/main/java/io/legado/app/ui/association/FileAssociationViewModel.kt b/app/src/main/java/io/legado/app/ui/association/FileAssociationViewModel.kt
index 187d47ce6..f16beb563 100644
--- a/app/src/main/java/io/legado/app/ui/association/FileAssociationViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/association/FileAssociationViewModel.kt
@@ -17,11 +17,10 @@ class FileAssociationViewModel(application: Application) : BaseAssociationViewMo
 
     fun dispatchIntent(uri: Uri) {
         execute {
-            lateinit var fileName: String
             //如果是普通的url，需要根据返回的内容判断是什么
             if (uri.isContentScheme() || uri.isFileScheme()) {
                 val fileDoc = FileDoc.fromUri(uri, false)
-                fileName = fileDoc.name
+                val fileName = fileDoc.name
                 if (fileName.matches(AppPattern.archiveFileRegex)) {
                     ArchiveUtils.deCompress(fileDoc, ArchiveUtils.TEMP_PATH) {
                         it.matches(bookFileRegex)
@@ -36,8 +35,9 @@ class FileAssociationViewModel(application: Application) : BaseAssociationViewMo
             }
         }.onError {
             it.printOnDebug()
-            errorLive.postValue(it.localizedMessage)
-            AppLog.put("无法打开文件\n${it.localizedMessage}", it)
+            val msg = "无法打开文件\n${it.localizedMessage}"
+            errorLive.postValue(msg)
+            AppLog.put(msg, it)
         }
     }
 
diff --git a/app/src/main/java/io/legado/app/ui/book/read/page/provider/ChapterProvider.kt b/app/src/main/java/io/legado/app/ui/book/read/page/provider/ChapterProvider.kt
index 7db6d2b4f..7b639c6fc 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/page/provider/ChapterProvider.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/page/provider/ChapterProvider.kt
@@ -31,7 +31,7 @@ import kotlin.collections.ArrayList
 /**
  * 解析内容生成章节和页面
  */
-@Suppress("DEPRECATION")
+@Suppress("DEPRECATION", "ConstPropertyName")
 object ChapterProvider {
     //用于图片字的替换
     private const val srcReplaceChar = "▩"
@@ -372,9 +372,9 @@ object ChapterProvider {
                         textLayoutHeight = fistLine.lineTop - titleTopSpacing
                     }
                     textPage.lines.forEach {
-                        it.lineTop = it.lineTop - textLayoutHeight
-                        it.lineBase = it.lineBase - textLayoutHeight
-                        it.lineBottom = it.lineBottom - textLayoutHeight
+                        it.lineTop -= textLayoutHeight
+                        it.lineBase -= textLayoutHeight
+                        it.lineBottom -= textLayoutHeight
                     }
                     y - textLayoutHeight
                 }
@@ -630,12 +630,15 @@ object ChapterProvider {
         val strList = ArrayList<String>()
         val textWidthList = ArrayList<Float>()
         val lastIndex = charArray.lastIndex
+        var ca: CharArray? = null
         for (i in textWidths.indices) {
             if (charArray[i].isLowSurrogate()) {
                 continue
             }
             val char = if (i + 1 <= lastIndex && charArray[i + 1].isLowSurrogate()) {
-                charArray[i].toString() + charArray[i + 1].toString()
+                if (ca == null) ca = CharArray(2)
+                System.arraycopy(charArray, i, ca, 0, 2)
+                String(ca)
             } else {
                 charArray[i].toString()
             }
@@ -705,8 +708,8 @@ object ChapterProvider {
             for (i in 0..words.lastIndex) {
                 textLine.getColumnReverseAt(i).let {
                     val py = cc * (words.size - i)
-                    it.start = it.start - py
-                    it.end = it.end - py
+                    it.start -= py
+                    it.end -= py
                 }
             }
         }