diff --git a/app/src/main/java/io/legado/app/help/storage/Backup.kt b/app/src/main/java/io/legado/app/help/storage/Backup.kt
index c08f0dd1d..b52688846 100644
--- a/app/src/main/java/io/legado/app/help/storage/Backup.kt
+++ b/app/src/main/java/io/legado/app/help/storage/Backup.kt
@@ -63,11 +63,11 @@ object Backup {
                 writeListToJson(App.db.txtTocRule().all, "txtTocRule.json", backupPath)
                 writeListToJson(App.db.readRecordDao().all, "readRecord.json", backupPath)
                 writeListToJson(App.db.httpTTSDao().all, "httpTTS.json", backupPath)
-                GSON.toJson(ReadBookConfig.configList)?.let {
+                GSON.toJson(ReadBookConfig.configList).let {
                     FileUtils.createFileIfNotExist(backupPath + File.separator + ReadBookConfig.configFileName)
                         .writeText(it)
                 }
-                GSON.toJson(ThemeConfig.configList)?.let {
+                GSON.toJson(ThemeConfig.configList).let {
                     FileUtils.createFileIfNotExist(backupPath + File.separator + ThemeConfig.configFileName)
                         .writeText(it)
                 }
diff --git a/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt b/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt
index 8a7deb2ab..57421991d 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/edit/BookSourceEditActivity.kt
@@ -74,17 +74,11 @@ class BookSourceEditActivity :
                     }
                 }
             }
-            R.id.menu_copy_source -> getSource().let { source ->
-                GSON.toJson(source)?.let { sourceStr ->
-                    sendToClip(sourceStr)
-                }
-            }
+            R.id.menu_copy_source -> sendToClip(GSON.toJson(getSource()))
             R.id.menu_paste_source -> viewModel.pasteSource { upRecyclerView(it) }
             R.id.menu_qr_code_camera -> startActivityForResult<QrCodeActivity>(qrRequestCode)
-            R.id.menu_share_str -> GSON.toJson(getSource())?.let { share(it) }
-            R.id.menu_share_qr -> GSON.toJson(getSource())?.let { sourceStr ->
-                shareWithQr(getString(R.string.share_book_source), sourceStr)
-            }
+            R.id.menu_share_str -> share(GSON.toJson(getSource()))
+            R.id.menu_share_qr -> shareWithQr(getString(R.string.share_book_source), GSON.toJson(getSource()))
             R.id.menu_rule_summary -> {
                 try {
                     val intent = Intent(Intent.ACTION_VIEW)
diff --git a/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditActivity.kt b/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditActivity.kt
index 5072861ec..34b795a2b 100644
--- a/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/rss/source/edit/RssSourceEditActivity.kt
@@ -91,19 +91,11 @@ class RssSourceEditActivity :
                     }
                 }
             }
-            R.id.menu_copy_source -> {
-                GSON.toJson(getRssSource())?.let { sourceStr ->
-                    sendToClip(sourceStr)
-                }
-            }
+            R.id.menu_copy_source -> sendToClip(GSON.toJson(getRssSource()))
             R.id.menu_qr_code_camera -> startActivityForResult<QrCodeActivity>(qrRequestCode)
             R.id.menu_paste_source -> viewModel.pasteSource { upRecyclerView(it) }
-            R.id.menu_share_str -> GSON.toJson(getRssSource())?.let { sourceStr ->
-                share(sourceStr)
-            }
-            R.id.menu_share_qr -> GSON.toJson(getRssSource())?.let { sourceStr ->
-                shareWithQr(getString(R.string.share_rss_source), sourceStr)
-            }
+            R.id.menu_share_str -> share(GSON.toJson(getRssSource()))
+            R.id.menu_share_qr -> shareWithQr(getString(R.string.share_rss_source), GSON.toJson(getRssSource()))
         }
         return super.onCompatOptionsItemSelected(item)
     }