diff --git a/app/src/main/java/io/legado/app/ui/book/group/GroupEditDialog.kt b/app/src/main/java/io/legado/app/ui/book/group/GroupEditDialog.kt
index 8237b7830..4994df880 100644
--- a/app/src/main/java/io/legado/app/ui/book/group/GroupEditDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/group/GroupEditDialog.kt
@@ -34,7 +34,7 @@ class GroupEditDialog : BaseDialogFragment() {
     private val viewModel by viewModels<GroupViewModel>()
     private var bookGroup: BookGroup? = null
     val selectImage = registerForActivityResult(SelectImageContract()) {
-        it?.second?.read(this) { name, bytes ->
+        readUri(it?.second) { name, bytes ->
             var file = requireContext().externalFiles
             file = FileUtils.createFileIfNotExist(file, "covers", name)
             file.writeBytes(bytes)
diff --git a/app/src/main/java/io/legado/app/ui/book/info/edit/BookInfoEditActivity.kt b/app/src/main/java/io/legado/app/ui/book/info/edit/BookInfoEditActivity.kt
index 88a76ae4b..8d6ca1099 100644
--- a/app/src/main/java/io/legado/app/ui/book/info/edit/BookInfoEditActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/info/edit/BookInfoEditActivity.kt
@@ -14,7 +14,7 @@ import io.legado.app.ui.book.changecover.ChangeCoverDialog
 import io.legado.app.utils.FileUtils
 import io.legado.app.utils.SelectImageContract
 import io.legado.app.utils.externalFiles
-import io.legado.app.utils.read
+import io.legado.app.utils.readUri
 import io.legado.app.utils.viewbindingdelegate.viewBinding
 
 class BookInfoEditActivity :
@@ -102,7 +102,7 @@ class BookInfoEditActivity :
     }
 
     private fun coverChangeTo(uri: Uri) {
-        uri.read(this) { name, bytes ->
+        readUri(uri) { name, bytes ->
             var file = this.externalFiles
             file = FileUtils.createFileIfNotExist(file, "covers", name)
             file.writeBytes(bytes)
diff --git a/app/src/main/java/io/legado/app/ui/book/read/config/BgTextConfigDialog.kt b/app/src/main/java/io/legado/app/ui/book/read/config/BgTextConfigDialog.kt
index dd2499628..b905b1e74 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/config/BgTextConfigDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/config/BgTextConfigDialog.kt
@@ -343,7 +343,7 @@ class BgTextConfigDialog : BaseDialogFragment() {
     }
 
     private fun setBgFromUri(uri: Uri) {
-        uri.read(this) { name, bytes ->
+        readUri(uri) { name, bytes ->
             var file = requireContext().externalFiles
             file = FileUtils.createFileIfNotExist(file, "bg", name)
             file.writeBytes(bytes)
diff --git a/app/src/main/java/io/legado/app/ui/config/ThemeConfigFragment.kt b/app/src/main/java/io/legado/app/ui/config/ThemeConfigFragment.kt
index 1ef0dcbbf..7712f61b3 100644
--- a/app/src/main/java/io/legado/app/ui/config/ThemeConfigFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/config/ThemeConfigFragment.kt
@@ -302,7 +302,7 @@ class ThemeConfigFragment : BasePreferenceFragment(),
     }
 
     private fun setBgFromUri(uri: Uri, preferenceKey: String, success: () -> Unit) {
-        uri.read(this) { name, bytes ->
+        readUri(uri) { name, bytes ->
             var file = requireContext().externalFiles
             file = FileUtils.createFileIfNotExist(file, preferenceKey, name)
             file.writeBytes(bytes)
@@ -312,7 +312,7 @@ class ThemeConfigFragment : BasePreferenceFragment(),
     }
 
     private fun setCoverFromUri(preferenceKey: String, uri: Uri) {
-        uri.read(this) { name, bytes ->
+        readUri(uri) { name, bytes ->
             var file = requireContext().externalFiles
             file = FileUtils.createFileIfNotExist(file, "covers", name)
             file.writeBytes(bytes)
diff --git a/app/src/main/java/io/legado/app/utils/UriExtensions.kt b/app/src/main/java/io/legado/app/utils/UriExtensions.kt
index c461f8555..5d52b26dd 100644
--- a/app/src/main/java/io/legado/app/utils/UriExtensions.kt
+++ b/app/src/main/java/io/legado/app/utils/UriExtensions.kt
@@ -15,24 +15,25 @@ fun Uri.isContentScheme() = this.scheme == "content"
 /**
  * 读取URI
  */
-fun Uri.read(activity: AppCompatActivity, success: (name: String, bytes: ByteArray) -> Unit) {
+fun AppCompatActivity.readUri(uri: Uri?, success: (name: String, bytes: ByteArray) -> Unit) {
+    uri ?: return
     try {
-        if (isContentScheme()) {
-            val doc = DocumentFile.fromSingleUri(activity, this)
+        if (uri.isContentScheme()) {
+            val doc = DocumentFile.fromSingleUri(this, uri)
             doc ?: error("未获取到文件")
             val name = doc.name ?: error("未获取到文件名")
-            val fileBytes = DocumentUtils.readBytes(activity, doc.uri)
+            val fileBytes = DocumentUtils.readBytes(this, doc.uri)
             fileBytes ?: error("读取文件出错")
             success.invoke(name, fileBytes)
         } else {
-            PermissionsCompat.Builder(activity)
+            PermissionsCompat.Builder(this)
                 .addPermissions(
                     Permissions.READ_EXTERNAL_STORAGE,
                     Permissions.WRITE_EXTERNAL_STORAGE
                 )
                 .rationale(R.string.bg_image_per)
                 .onGranted {
-                    RealPathUtil.getPath(activity, this)?.let { path ->
+                    RealPathUtil.getPath(this, uri)?.let { path ->
                         val imgFile = File(path)
                         success.invoke(imgFile.name, imgFile.readBytes())
                     }
@@ -41,31 +42,32 @@ fun Uri.read(activity: AppCompatActivity, success: (name: String, bytes: ByteArr
         }
     } catch (e: Exception) {
         e.printStackTrace()
-        activity.toastOnUi(e.localizedMessage ?: "read uri error")
+        toastOnUi(e.localizedMessage ?: "read uri error")
     }
 }
 
 /**
  * 读取URI
  */
-fun Uri.read(fragment: Fragment, success: (name: String, bytes: ByteArray) -> Unit) {
+fun Fragment.readUri(uri: Uri?, success: (name: String, bytes: ByteArray) -> Unit) {
+    uri ?: return
     try {
-        if (isContentScheme()) {
-            val doc = DocumentFile.fromSingleUri(fragment.requireContext(), this)
+        if (uri.isContentScheme()) {
+            val doc = DocumentFile.fromSingleUri(requireContext(), uri)
             doc ?: error("未获取到文件")
             val name = doc.name ?: error("未获取到文件名")
-            val fileBytes = DocumentUtils.readBytes(fragment.requireContext(), doc.uri)
+            val fileBytes = DocumentUtils.readBytes(requireContext(), doc.uri)
             fileBytes ?: error("读取文件出错")
             success.invoke(name, fileBytes)
         } else {
-            PermissionsCompat.Builder(fragment)
+            PermissionsCompat.Builder(this)
                 .addPermissions(
                     Permissions.READ_EXTERNAL_STORAGE,
                     Permissions.WRITE_EXTERNAL_STORAGE
                 )
                 .rationale(R.string.bg_image_per)
                 .onGranted {
-                    RealPathUtil.getPath(fragment.requireContext(), this)?.let { path ->
+                    RealPathUtil.getPath(requireContext(), uri)?.let { path ->
                         val imgFile = File(path)
                         success.invoke(imgFile.name, imgFile.readBytes())
                     }
@@ -74,7 +76,7 @@ fun Uri.read(fragment: Fragment, success: (name: String, bytes: ByteArray) -> Un
         }
     } catch (e: Exception) {
         e.printStackTrace()
-        fragment.toastOnUi(e.localizedMessage ?: "read uri error")
+        toastOnUi(e.localizedMessage ?: "read uri error")
     }
 }