fix photo cache and setting config

shared/src/androidMain/kotlin/com/zhushenwudi/lovelivemusicplayer/player/PlayerController.android.kt

@@ -23,6 +23,7 @@ import com.zhushenwudi.lovelivemusicplayer.platform.AppLog
 import com.zhushenwudi.lovelivemusicplayer.platform.PlatformServices
 import java.io.File
 import kotlin.random.Random
+import kotlin.time.Duration.Companion.milliseconds
 
 actual class PlayerController(context: Context) {
     private val appContext = context.applicationContext
@@ -114,7 +115,7 @@ actual class PlayerController(context: Context) {
                         durationMs = player.duration.coerceAtLeast(0),
                     )
                 }
-                delay(200)
+                delay(200.milliseconds)
             }
         }
     }

shared/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/i18n/DeStrings.kt

@@ -284,8 +284,10 @@ internal val DeStrings: Map<String, String> = mapOf(
     "now_playing_song" to "Läuft gerade: %s",
     "fetch_songs_fail_or_net" to "Datenfehler oder Netzwerkfehler",
     "explain_songs_data_kmp" to "Songdaten: Bibliotheksmetadaten, Version",
-    "explain_user_data_kmp" to "Benutzerdaten: Likes/Verlauf/Playlists/Cache, dann beenden",
+    "explain_image_cache" to "Bildcache: heruntergeladene Cover, danach neu laden",
+    "explain_user_data_kmp" to "Benutzerdaten: Likes/Verlauf/Playlists/Cache",
     "remove_songs_data_kmp" to "Songdaten löschen",
+    "clear_image_cache" to "Bildcache löschen",
     "remove_user_data_kmp" to "Benutzerdaten löschen",
     "confirm_delete_from_menu_short" to "Aus Playlist löschen?",
     "play_text" to "Spielen,Pausierte",

shared/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/i18n/EnStrings.kt

@@ -284,8 +284,10 @@ internal val EnStrings: Map<String, String> = mapOf(
     "now_playing_song" to "Now Playing: %s",
     "fetch_songs_fail_or_net" to "Data error or network failure",
     "explain_songs_data_kmp" to "Song data: library metadata, version",
-    "explain_user_data_kmp" to "User data: likes/history/playlists/cache, then quit",
+    "explain_image_cache" to "Image cache: downloaded covers, reloaded after clearing",
+    "explain_user_data_kmp" to "User data: likes/history/playlists/cache",
     "remove_songs_data_kmp" to "Clear song data",
+    "clear_image_cache" to "Clear image cache",
     "remove_user_data_kmp" to "Clear user data",
     "confirm_delete_from_menu_short" to "Delete from playlist?",
     "play_text" to "Playing,Paused",

shared/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/i18n/JaStrings.kt

@@ -284,8 +284,10 @@ internal val JaStrings: Map<String, String> = mapOf(
     "now_playing_song" to "再生中：%s",
     "fetch_songs_fail_or_net" to "データ異常またはネットワーク失敗",
     "explain_songs_data_kmp" to "曲データ：ライブラリメタデータ、バージョン",
-    "explain_user_data_kmp" to "ユーザーデータ：好き/履歴/プレイリスト/キャッシュを削除して終了",
+    "explain_image_cache" to "画像キャッシュ：ダウンロード済みカバー。削除後に再読み込み",
+    "explain_user_data_kmp" to "ユーザーデータ：好き/履歴/プレイリスト/キャッシュ",
     "remove_songs_data_kmp" to "曲データを削除",
+    "clear_image_cache" to "画像キャッシュを削除",
     "remove_user_data_kmp" to "ユーザーデータを削除",
     "confirm_delete_from_menu_short" to "プレイリストから削除しますか？",
     "play_text" to "放送中,停止しました",

shared/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/i18n/ZhStrings.kt

@@ -284,8 +284,10 @@ internal val ZhStrings: Map<String, String> = mapOf(
     "now_playing_song" to "正在播放：%s",
     "fetch_songs_fail_or_net" to "数据异常或网络失败",
     "explain_songs_data_kmp" to "歌曲数据：曲库元数据、版本号",
-    "explain_user_data_kmp" to "用户数据：喜欢/历史/歌单/缓存，并退出应用",
+    "explain_image_cache" to "图片缓存：已下载的封面，清除后重新加载",
+    "explain_user_data_kmp" to "用户数据：喜欢/历史/歌单/缓存",
     "remove_songs_data_kmp" to "清除歌曲数据",
+    "clear_image_cache" to "清除图片缓存",
     "remove_user_data_kmp" to "清除用户数据",
     "confirm_delete_from_menu_short" to "确认从歌单删除？",
     "play_text" to "播放中,已暂停",

shared/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/player/SleepTimer.kt

@@ -7,6 +7,7 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.launch
+import kotlin.time.Duration.Companion.seconds
 
 class SleepTimer(
     private val scope: CoroutineScope,
@@ -23,7 +24,7 @@ class SleepTimer(
         _remainingMs.value = left
         job = scope.launch {
             while (left > 0) {
-                delay(1_000)
+                delay(1.seconds)
                 left -= 1_000
                 _remainingMs.value = left.coerceAtLeast(0)
             }

shared/src/iosMain/kotlin/com/zhushenwudi/lovelivemusicplayer/player/PlayerController.ios.kt

@@ -1,6 +1,8 @@
 package com.zhushenwudi.lovelivemusicplayer.player
 
+import kotlinx.cinterop.CValue
 import kotlinx.cinterop.ExperimentalForeignApi
+import kotlinx.cinterop.useContents
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -40,9 +42,13 @@ import platform.AVFoundation.rate
 import platform.AVFoundation.replaceCurrentItemWithPlayerItem
 import platform.AVFoundation.resourceLoader
 import platform.AVFoundation.seekToTime
+import platform.CoreGraphics.CGRectMake
+import platform.CoreGraphics.CGSize
+import platform.CoreGraphics.CGSizeMake
 import platform.CoreMedia.CMTimeGetSeconds
 import platform.CoreMedia.CMTimeMake
 import platform.Foundation.NSBundle
+import platform.Foundation.NSThread
 import platform.Foundation.NSError
 import platform.Foundation.NSMutableURLRequest
 import platform.Foundation.NSNotification
@@ -69,6 +75,9 @@ import platform.MediaPlayer.MPRemoteCommandHandlerStatus
 import platform.MediaPlayer.MPRemoteCommandHandlerStatusCommandFailed
 import platform.MediaPlayer.MPRemoteCommandHandlerStatusSuccess
 import platform.MediaPlayer.MPSeekCommandEvent
+import platform.UIKit.UIGraphicsBeginImageContextWithOptions
+import platform.UIKit.UIGraphicsEndImageContext
+import platform.UIKit.UIGraphicsGetImageFromCurrentImageContext
 import platform.UIKit.UIImage
 import platform.darwin.dispatch_async
 import platform.darwin.dispatch_get_main_queue
@@ -455,6 +464,10 @@ actual class PlayerController {
      * 封面 + 专辑信息启用灵动岛媒体胶囊。
      */
     private fun updateNowPlayingInfo() {
+        if (!NSThread.isMainThread) {
+            dispatch_async(dispatch_get_main_queue()) { updateNowPlayingInfo() }
+            return
+        }
         val s = _state.value
         val current = s.current ?: return
         val songName = current.musicName ?: return
@@ -502,12 +515,32 @@ actual class PlayerController {
             else -> raw
         }
         val image = UIImage.imageWithContentsOfFile(path) ?: return null
-        val artwork = MPMediaItemArtwork(boundsSize = image.size) { _ -> image }
+        val artwork = coverArtwork(image)
         cachedArtworkMusicId = id
         cachedArtwork = artwork
         return artwork
     }
 
+    /**
+     * 系统会按锁屏 / 控制中心要的尺寸回调。直接交原图时，负一屏封面会空白。
+     */
+    private fun coverArtwork(image: UIImage): MPMediaItemArtwork {
+        return MPMediaItemArtwork(boundsSize = image.size) { requested ->
+            scaledCover(image, requested)
+        }
+    }
+
+    private fun scaledCover(image: UIImage, requested: CValue<CGSize>): UIImage {
+        val width = requested.useContents { this.width }
+        val height = requested.useContents { this.height }
+        if (width < 1.0 || height < 1.0) return image
+        UIGraphicsBeginImageContextWithOptions(CGSizeMake(width, height), false, 0.0)
+        image.drawInRect(CGRectMake(0.0, 0.0, width, height))
+        val scaled = UIGraphicsGetImageFromCurrentImageContext()
+        UIGraphicsEndImageContext()
+        return scaled ?: image
+    }
+
     private fun prefetchHttpArtwork(musicId: String, url: String) {
         if (musicId == coverFetchingMusicId) return
         if (musicId == cachedArtworkMusicId && cachedArtwork != null) return
@@ -537,7 +570,7 @@ actual class PlayerController {
                     return@dispatch_async
                 }
                 if (_state.value.current?.musicId != musicId) return@dispatch_async
-                val artwork = MPMediaItemArtwork(boundsSize = image.size) { _ -> image }
+                val artwork = coverArtwork(image)
                 cachedArtworkMusicId = musicId
                 cachedArtwork = artwork
                 updateNowPlayingInfo()