diff --git a/shared/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/db/LibraryRepository.kt b/shared/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/db/LibraryRepository.kt
index bd54a97..597d6b7 100644
--- a/shared/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/db/LibraryRepository.kt
+++ b/shared/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/db/LibraryRepository.kt
@@ -148,7 +148,7 @@ class LibraryRepository(private val db: LlmpDatabase) {
             }
             val albumId = updated.albumId ?: return@forEach
             joinMediaRelativePath(updated.baseUrl, updated.coverPath)?.let { coverPath ->
-                albumCoverPaths.putIfAbsent(albumId, coverPath)
+                albumCoverPaths.getOrPut(albumId) { coverPath }
             }
             if (updated.existFile == true) {
                 albumHasFile[albumId] = true
diff --git a/shared/src/iosMain/kotlin/com/zhushenwudi/lovelivemusicplayer/platform/FileSystem.ios.kt b/shared/src/iosMain/kotlin/com/zhushenwudi/lovelivemusicplayer/platform/FileSystem.ios.kt
index 5744910..b8ddc9a 100644
--- a/shared/src/iosMain/kotlin/com/zhushenwudi/lovelivemusicplayer/platform/FileSystem.ios.kt
+++ b/shared/src/iosMain/kotlin/com/zhushenwudi/lovelivemusicplayer/platform/FileSystem.ios.kt
@@ -10,7 +10,11 @@ import platform.Foundation.NSFileManager
 import platform.Foundation.NSSearchPathForDirectoriesInDomains
 import platform.Foundation.NSUserDomainMask
 import platform.Foundation.NSFileHandle
+import platform.Foundation.closeFile
 import platform.Foundation.create
+import platform.Foundation.fileHandleForWritingAtPath
+import platform.Foundation.seekToEndOfFile
+import platform.Foundation.writeData
 import platform.Foundation.writeToFile
 
 @OptIn(ExperimentalForeignApi::class, BetaInteropApi::class)