optimize transfer ui

composeApp/src/androidMain/kotlin/com/zhushenwudi/lovelivemusicplayer/ui/player/EmptyPlayerTitleFont.android.kt

@@ -0,0 +1,5 @@
+package com.zhushenwudi.lovelivemusicplayer.ui.player
+
+import androidx.compose.ui.text.font.FontFamily
+
+internal actual fun emptyPlayerTitleFontFamily(): FontFamily = FontFamily.Default

composeApp/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/ui/MainShell.kt

@@ -87,16 +87,15 @@ import com.zhushenwudi.lovelivemusicplayer.theme.LocalDarkTheme
 import com.zhushenwudi.lovelivemusicplayer.ui.components.AddToMenuDialog
 import com.zhushenwudi.lovelivemusicplayer.ui.components.AppDrawer
 import com.zhushenwudi.lovelivemusicplayer.ui.components.BatchActionBar
+import com.zhushenwudi.lovelivemusicplayer.ui.components.DrawerLogoButton
 import com.zhushenwudi.lovelivemusicplayer.ui.components.LandscapeLibraryHeader
 import com.zhushenwudi.lovelivemusicplayer.ui.components.LibrarySelectMode
 import com.zhushenwudi.lovelivemusicplayer.ui.components.LlmpBottomBar
 import com.zhushenwudi.lovelivemusicplayer.ui.components.LoadingOverlay
-import com.zhushenwudi.lovelivemusicplayer.ui.components.NeumorphicGroupLogoButton
 import com.zhushenwudi.lovelivemusicplayer.ui.components.SongLibraryTopBar
 import com.zhushenwudi.lovelivemusicplayer.ui.components.TopLibraryTabs
 import com.zhushenwudi.lovelivemusicplayer.ui.components.TwoButtonDialog
 import com.zhushenwudi.lovelivemusicplayer.ui.components.UpdateVersionDialog
-import com.zhushenwudi.lovelivemusicplayer.ui.components.isDefaultGroupLogo
 import com.zhushenwudi.lovelivemusicplayer.ui.player.FullPlayerScreen
 import com.zhushenwudi.lovelivemusicplayer.ui.player.LocalMiniPlayerHaze
 import com.zhushenwudi.lovelivemusicplayer.ui.player.MiniPlayerBar
@@ -761,7 +760,6 @@ fun MainShell(
                                                         }
                                                     }
                                                 },
-                                                group = currentGroup,
                                                 onOpenDrawer = if (batchLock || detailOpen) {
                                                     null
                                                 } else {
@@ -788,26 +786,13 @@ fun MainShell(
                                                 },
                                                 modifier = Modifier.weight(1f),
                                             )
-                                            // 顶部团组 Logo 按钮，随 currentGroup 变化。
+                                            DrawerLogoButton(
-                                            NeumorphicGroupLogoButton(
-                                                group = currentGroup,
                                                 onClick = if (batchLock || detailOpen) {
                                                     null
                                                 } else {
                                                     { scope.launch { drawerState.open() } }
                                                 },
-                                                size = 36.dp,
+                                                background = shellBg,
-                                                background = if (currentGroup.isDefaultGroupLogo()) {
-                                                    Color(0x4DFFAE00)
-                                                } else {
-                                                    shellBg
-                                                },
-                                                contentPadding = if (currentGroup.isDefaultGroupLogo()) {
-                                                    3.dp
-                                                } else {
-                                                    0.dp
-                                                },
-                                                hasShadow = true,
                                             )
                                         }
                                         }

composeApp/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/ui/components/AppDrawer.kt

@@ -1,5 +1,6 @@
 package com.zhushenwudi.lovelivemusicplayer.ui.components
 
+import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.interaction.MutableInteractionSource
@@ -36,6 +37,9 @@ import coil3.compose.AsyncImage
 import org.jetbrains.compose.resources.ExperimentalResourceApi
 import com.zhushenwudi.lovelivemusicplayer.domain.GroupKey
 import com.zhushenwudi.lovelivemusicplayer.generated.resources.Res
+import com.zhushenwudi.lovelivemusicplayer.generated.resources.llmp_logo_dark
+import com.zhushenwudi.lovelivemusicplayer.generated.resources.llmp_logo_light
+import org.jetbrains.compose.resources.painterResource
 import com.zhushenwudi.lovelivemusicplayer.i18n.tr
 import com.zhushenwudi.lovelivemusicplayer.navigation.Routes
 import com.zhushenwudi.lovelivemusicplayer.theme.ColorMs
@@ -61,7 +65,7 @@ enum class DrawerAction {
 /** 与 Flutter `DrawerLayout` 对齐的抽屉尺寸。 */
 private object DrawerLayout {
     val logoSlotHeight = 130.dp
-    val defaultLogoSize = 165.dp
+    val defaultLogoSize = 120.dp
     val groupLogoSize = 130.dp
     val logoToTitleGap = 5.dp
     val titleFontSize = 17.3.sp
@@ -187,11 +191,22 @@ fun AppDrawer(
                 .fillMaxWidth(),
             contentAlignment = Alignment.Center,
         ) {
+            if (currentGroup.isDefaultGroupLogo()) {
+                Image(
+                    painter = painterResource(
+                        if (dark) Res.drawable.llmp_logo_dark else Res.drawable.llmp_logo_light,
+                    ),
+                    contentDescription = "LLMP",
+                    contentScale = ContentScale.Fit,
+                    modifier = Modifier.size(topLogoSize).clip(RoundedCornerShape(24.dp)),
+                )
+            } else {
                 GroupLogoImage(
                     group = currentGroup,
                     modifier = Modifier.size(topLogoSize),
                 )
             }
+        }
         Spacer(Modifier.height(DrawerLayout.logoToTitleGap))
         Text(
             text = "LoveLiveMusicPlayer",

composeApp/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/ui/components/DrawerLogoButton.kt

@@ -0,0 +1,35 @@
+package com.zhushenwudi.lovelivemusicplayer.ui.components
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.unit.dp
+import com.zhushenwudi.lovelivemusicplayer.generated.resources.Res
+import com.zhushenwudi.lovelivemusicplayer.generated.resources.llmp_logo_dark
+import com.zhushenwudi.lovelivemusicplayer.generated.resources.llmp_logo_light
+import com.zhushenwudi.lovelivemusicplayer.i18n.tr
+import com.zhushenwudi.lovelivemusicplayer.theme.LocalDarkTheme
+
+/** 横竖屏共用的抽屉入口，跟随应用主题（包括手动主题设置）。 */
+@Composable
+fun DrawerLogoButton(
+    onClick: (() -> Unit)?,
+    background: Color,
+    modifier: Modifier = Modifier,
+) {
+    NeumorphicDrawableButton(
+        drawable = if (LocalDarkTheme.current) {
+            Res.drawable.llmp_logo_dark
+        } else {
+            Res.drawable.llmp_logo_light
+        },
+        onClick = onClick,
+        modifier = modifier,
+        size = 36.dp,
+        radius = 8.dp,
+        background = background,
+        contentScale = ContentScale.Fit,
+        contentDescription = tr("open_drawer"),
+    )
+}

composeApp/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/ui/components/DriveModeCarousel.kt

@@ -22,6 +22,7 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import kotlinx.coroutines.flow.distinctUntilChanged
 import com.zhushenwudi.lovelivemusicplayer.domain.Music
@@ -88,12 +89,13 @@ fun DriveModeCarousel(
     }
 }
 
-/** 驾驶模式与歌曲快传共用的封面 Pager，保证两处运动效果完全一致。 */
+/** 共用封面 Pager；传输页可关闭驾驶模式的纵向偏移，让封面中心水平对齐。 */
 @Composable
 internal fun CoverCarouselPager(
     state: PagerState,
     modifier: Modifier = Modifier,
     userScrollEnabled: Boolean = true,
+    verticalOffset: Dp = (-40).dp,
     pageContent: @Composable (Int) -> Unit,
 ) {
     BoxWithConstraints(modifier.fillMaxSize()) {
@@ -124,7 +126,7 @@ internal fun CoverCarouselPager(
                         scaleX = scale
                         scaleY = scale
                         this.alpha = alpha
-                        translationY = scale * -40.dp.toPx()
+                        translationY = scale * verticalOffset.toPx()
                     },
                 contentAlignment = Alignment.Center,
             ) {

composeApp/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/ui/components/NeumorphicButton.kt

@@ -136,6 +136,7 @@ fun NeumorphicDrawableButton(
     hasShadow: Boolean = true,
     contentPadding: Dp = 0.dp,
     contentScale: ContentScale = ContentScale.Crop,
+    contentDescription: String? = null,
 ) {
     val shape = if (radius >= size / 2) CircleShape else RoundedCornerShape(radius)
     NeumorphicSurface(
@@ -151,7 +152,7 @@ fun NeumorphicDrawableButton(
         key(drawable) {
             androidx.compose.foundation.Image(
                 painter = painterResource(drawable),
-                contentDescription = null,
+                contentDescription = contentDescription,
                 contentScale = contentScale,
                 modifier = Modifier
                     .fillMaxSize()

composeApp/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/ui/components/PairingPageLayout.kt

@@ -0,0 +1,85 @@
+package com.zhushenwudi.lovelivemusicplayer.ui.components
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.BoxWithConstraints
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ColumnScope
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.WindowInsetsSides
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.only
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.safeDrawing
+import androidx.compose.foundation.layout.windowInsetsPadding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+import com.zhushenwudi.lovelivemusicplayer.ui.theme.LocalIsLandscape
+
+/** 横屏图示与操作分栏；窄窗口仍单列滚动，避免操作被固定大图/间距挤出屏幕。 */
+@Composable
+internal fun PairingPageLayout(
+    modifier: Modifier = Modifier,
+    illustration: @Composable (Dp) -> Unit,
+    landscapeHeader: (@Composable () -> Unit)? = null,
+    content: @Composable ColumnScope.(isSplitLayout: Boolean) -> Unit,
+) {
+    val landscape = LocalIsLandscape.current
+    BoxWithConstraints(
+        modifier.fillMaxSize().windowInsetsPadding(
+            WindowInsets.safeDrawing.only(WindowInsetsSides.Horizontal + WindowInsetsSides.Bottom),
+        ),
+    ) {
+        if (landscape && maxWidth >= 560.dp) {
+            Column(Modifier.fillMaxSize()) {
+                landscapeHeader?.invoke()
+                BoxWithConstraints(Modifier.weight(1f).fillMaxWidth()) {
+                    val viewportHeight = maxHeight
+                    val illustrationSize = minOf(maxHeight * 0.8f, maxWidth * 0.4f, 280.dp)
+                    Row(Modifier.fillMaxSize().padding(horizontal = 24.dp)) {
+                        Box(
+                            Modifier.weight(1f).fillMaxHeight(),
+                            contentAlignment = Alignment.Center,
+                        ) {
+                            illustration(illustrationSize)
+                        }
+                        Column(
+                            Modifier.weight(1f).fillMaxHeight()
+                                .verticalScroll(rememberScrollState())
+                                .heightIn(min = viewportHeight).padding(24.dp),
+                            horizontalAlignment = Alignment.CenterHorizontally,
+                            verticalArrangement = Arrangement.Center,
+                        ) {
+                            content(true)
+                        }
+                    }
+                }
+            }
+        } else {
+            val illustrationSize = minOf(maxWidth - 48.dp, 343.dp).coerceAtLeast(1.dp)
+            Column(
+                Modifier.fillMaxSize().verticalScroll(rememberScrollState())
+                    .padding(horizontal = 24.dp, vertical = 24.dp),
+                horizontalAlignment = Alignment.CenterHorizontally,
+            ) {
+                Box(Modifier.fillMaxWidth(), contentAlignment = Alignment.Center) {
+                    illustration(illustrationSize)
+                }
+                Spacer(Modifier.height(32.dp))
+                content(false)
+                Spacer(Modifier.height(24.dp))
+            }
+        }
+    }
+}

composeApp/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/ui/components/TopLibraryTabs.kt

@@ -38,7 +38,6 @@ import androidx.compose.ui.text.input.ImeAction
 import androidx.compose.ui.text.style.LineHeightStyle
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import com.zhushenwudi.lovelivemusicplayer.domain.GroupKey
 import com.zhushenwudi.lovelivemusicplayer.i18n.tr
 import com.zhushenwudi.lovelivemusicplayer.navigation.LibraryTab
 import com.zhushenwudi.lovelivemusicplayer.navigation.TopSection
@@ -114,7 +113,6 @@ fun LandscapeLibraryHeader(
     interactionEnabled: Boolean,
     query: String,
     onQueryChange: (String) -> Unit,
-    group: GroupKey,
     onOpenDrawer: (() -> Unit)?,
     shellBg: Color,
     showSearch: Boolean,
@@ -219,13 +217,9 @@ fun LandscapeLibraryHeader(
         }
         }
         Spacer(Modifier.width(12.dp))
-        NeumorphicGroupLogoButton(
+        DrawerLogoButton(
-            group = group,
             onClick = onOpenDrawer,
-            size = 36.dp,
+            background = shellBg,
-            background = if (group.isDefaultGroupLogo()) Color(0x4DFFAE00) else shellBg,
-            contentPadding = if (group.isDefaultGroupLogo()) 3.dp else 0.dp,
-            hasShadow = true,
         )
     }
 }

composeApp/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/ui/player/EmptyPlayerTitleFont.kt

@@ -0,0 +1,6 @@
+package com.zhushenwudi.lovelivemusicplayer.ui.player
+
+import androidx.compose.ui.text.font.FontFamily
+
+/** 空状态标题字体；iOS 明确选择中文字族，避免粗体逐字回退造成视觉深浅不一。 */
+internal expect fun emptyPlayerTitleFontFamily(): FontFamily

composeApp/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/ui/player/MiniPlayerBar.kt

@@ -40,6 +40,7 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.rememberTextMeasurer
 import androidx.compose.ui.text.style.TextAlign
@@ -166,6 +167,7 @@ fun MiniPlayerBar(
                 MiniPlayerTitle(
                     text = title,
                     color = titleColor,
+                    fontFamily = if (current == null) emptyPlayerTitleFontFamily() else null,
                     modifier = Modifier
                         .weight(1f)
                         .then(
@@ -248,10 +250,11 @@ private const val MiniTitleMarqueeHoldMs = 2_000
 private fun MiniPlayerTitle(
     text: String,
     color: Color,
+    fontFamily: FontFamily?,
     modifier: Modifier = Modifier,
 ) {
     val textMeasurer = rememberTextMeasurer()
-    val style = MiniTitleStyle.copy(color = color)
+    val style = MiniTitleStyle.copy(color = color, fontFamily = fontFamily)
     BoxWithConstraints(
         modifier = modifier.clipToBounds(),
         contentAlignment = Alignment.CenterStart,

composeApp/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/ui/screens/DrawerFeatureScreens.kt

@@ -8,6 +8,7 @@ import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.consumeWindowInsets
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxHeight
@@ -64,6 +65,7 @@ import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.text.withLink
 import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.sp
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.delay
@@ -78,6 +80,8 @@ import org.jetbrains.compose.resources.painterResource
 import com.zhushenwudi.lovelivemusicplayer.AppContainer
 import com.zhushenwudi.lovelivemusicplayer.Const
 import com.zhushenwudi.lovelivemusicplayer.generated.resources.Res
+import com.zhushenwudi.lovelivemusicplayer.generated.resources.llmp_logo_dark
+import com.zhushenwudi.lovelivemusicplayer.generated.resources.llmp_logo_light
 import com.zhushenwudi.lovelivemusicplayer.generated.resources.logo_logo
 import com.zhushenwudi.lovelivemusicplayer.lyric.LoadedLyric
 import com.zhushenwudi.lovelivemusicplayer.lyric.LrcParser
@@ -99,6 +103,7 @@ import com.zhushenwudi.lovelivemusicplayer.ui.components.DriveModeCarousel
 import com.zhushenwudi.lovelivemusicplayer.ui.components.LoadingOverlay
 import com.zhushenwudi.lovelivemusicplayer.ui.components.NeumorphicIconButton
 import com.zhushenwudi.lovelivemusicplayer.ui.components.PairTipsBlock
+import com.zhushenwudi.lovelivemusicplayer.ui.components.PairingPageLayout
 import com.zhushenwudi.lovelivemusicplayer.ui.components.PinkFuncButton
 import com.zhushenwudi.lovelivemusicplayer.ui.components.ResetDataDialog
 import com.zhushenwudi.lovelivemusicplayer.ui.components.TextFieldDialog
@@ -395,35 +400,33 @@ fun ScanScreen(onBack: () -> Unit, onConnectedHost: (String) -> Unit) {
     var host by remember { mutableStateOf(AppContainer.settings.lastPcHost) }
     val dark = LocalDarkTheme.current
     val bg = if (dark) ColorMs.NightPrimary else ColorMs.LightPrimary
-    Scaffold(
+    var active by remember { mutableStateOf(true) }
-        containerColor = bg,
+    DisposableEffect(Unit) { onDispose { active = false } }
-        topBar = { AppHeader(title = tr("scan_pair"), onBack = onBack) },
+    fun connect(raw: String) {
-    ) { padding ->
+        val parsed = parseHost(raw)
-        Column(
+        if (parsed.isBlank()) return
-            Modifier
-                .padding(padding)
-                .fillMaxSize()
-                .imePadding()
-                .verticalScroll(rememberScrollState())
-                .padding(horizontal = 24.dp),
-            horizontalAlignment = Alignment.CenterHorizontally,
-            verticalArrangement = Arrangement.Center,
-        ) {
-            Box(
-                Modifier
-                    .size(250.dp)
-                    .clip(RoundedCornerShape(12.dp))
-                    .background(if (dark) ColorMs.Dark1E2328 else ColorMs.E7F2FF)
-                    .clickable {
-                        com.zhushenwudi.lovelivemusicplayer.platform.PlatformUi.openQrScanner { result ->
-                            val parsed = parseHost(result)
-                            if (parsed.isNotBlank()) {
         host = parsed
         AppContainer.settings.lastPcHost = parsed
         onConnectedHost(parsed)
     }
+    fun scan() {
+        PlatformUi.openQrScanner { result ->
+            if (active && result.isNotBlank()) connect(result)
         }
-                    },
+    }
+    Scaffold(
+        containerColor = bg,
+        topBar = { AppHeader(title = tr("scan_pair"), onBack = onBack) },
+    ) { padding ->
+        PairingPageLayout(
+            modifier = Modifier.padding(padding).consumeWindowInsets(padding).imePadding(),
+            illustration = { size ->
+                Box(
+                    Modifier
+                        .size(minOf(size, 250.dp))
+                        .clip(RoundedCornerShape(12.dp))
+                        .background(if (dark) ColorMs.Dark1E2328 else ColorMs.E7F2FF)
+                        .clickable { scan() },
                     contentAlignment = Alignment.Center,
                 ) {
                     Column(horizontalAlignment = Alignment.CenterHorizontally) {
@@ -436,7 +439,8 @@ fun ScanScreen(onBack: () -> Unit, onConnectedHost: (String) -> Unit) {
                         Text(tr("tap_to_scan"), color = ColorMs.Gray999, fontSize = hSp(13f))
                     }
                 }
-            Spacer(Modifier.height(24.dp))
+            },
+        ) {
             OutlinedTextField(
                 value = host,
                 onValueChange = { host = it.trim() },
@@ -447,10 +451,7 @@ fun ScanScreen(onBack: () -> Unit, onConnectedHost: (String) -> Unit) {
             PinkFuncButton(
                 title = tr("confirm_pair"),
                 icon = SvgAsset("drawable/sync_icon_scan_qr.svg"),
-                onClick = {
+                onClick = { connect(host) },
-                    AppContainer.settings.lastPcHost = host
-                    onConnectedHost(host)
-                },
             )
         }
     }
@@ -488,65 +489,48 @@ fun TransferScreen(onBack: () -> Unit, onOpenScan: () -> Unit) {
             .background(bg),
     ) {
         AppHeader(title = tr("music_trans"), onBack = { requestBack() })
-        Column(
+        PairingPageLayout(
-            Modifier
+            modifier = Modifier.weight(1f),
-                .weight(1f)
+            illustration = { size ->
-                .fillMaxWidth()
-                .verticalScroll(rememberScrollState()),
-            horizontalAlignment = Alignment.CenterHorizontally,
-        ) {
                 if (connected || state.completed) {
-            Spacer(Modifier.height(35.dp))
                     TransferCoverBlock(
                         coverUrl = state.coverUrl,
                         coverKey = state.coverKey,
                         song = state.current,
                         artist = state.artist,
+                        size = size,
                         onIdleChange = { coverAnimationsIdle = it },
                         onDisplayedSongChange = { song, artist ->
                             displayedSong = song
                             displayedArtist = artist
                         },
                     )
-            Spacer(Modifier.height(20.dp))
+                } else {
-            Column(
+                    TransferDefaultLogo(
-                Modifier.height(60.dp),
+                        Modifier.size(minOf(size, 300.dp)).clip(RoundedCornerShape(24.dp)),
-                horizontalAlignment = Alignment.CenterHorizontally,
-                verticalArrangement = Arrangement.Center,
-            ) {
-                if (displayedSong.isNotBlank()) {
-                    Text(
-                        displayedSong,
-                        color = if (dark) ColorMs.White else ColorMs.Text333,
-                        fontSize = hSp(15f),
-                        maxLines = 1,
-                        overflow = TextOverflow.Ellipsis,
-                    )
-                    Text(
-                        displayedArtist,
-                        color = ColorMs.Gray999,
-                        fontSize = hSp(12f),
-                        maxLines = 1,
-                        overflow = TextOverflow.Ellipsis,
                     )
                 }
+            },
+            landscapeHeader = {
+                if (connected || state.completed) {
+                    TransferSongInfo(displayedSong, displayedArtist)
+                    Spacer(Modifier.height(6.dp))
+                }
+            },
+        ) { isSplitLayout ->
+            if (connected || state.completed) {
+                if (!isSplitLayout) {
+                    TransferSongInfo(displayedSong, displayedArtist)
+                    Spacer(Modifier.height(24.dp))
                 }
-            Spacer(Modifier.height(40.dp))
                 TransferProgressRing(
                     progress = state.progress,
                     total = state.total,
                     downloading = state.total > 0,
                 )
             } else {
-            Spacer(Modifier.height(15.dp))
-            SvgIcon(
-                asset = SvgAsset("drawable/sync_icon_data_sync.svg"),
-                size = 300.dp,
-                contentDescription = null,
-            )
-            Spacer(Modifier.height(65.dp))
                 PairTipsBlock()
-            Spacer(Modifier.height(85.dp))
+                Spacer(Modifier.height(24.dp))
                 PinkFuncButton(
                     title = tr("device_pair"),
                     icon = SvgAsset("drawable/sync_icon_scan_qr.svg"),
@@ -573,6 +557,44 @@ fun TransferScreen(onBack: () -> Unit, onOpenScan: () -> Unit) {
     }
 }
 
+@Composable
+private fun TransferSongInfo(song: String, artist: String) {
+    val dark = LocalDarkTheme.current
+    Column(
+        Modifier.fillMaxWidth().height(60.dp).padding(horizontal = 24.dp),
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.Center,
+    ) {
+        if (song.isNotBlank()) {
+            Text(
+                song,
+                color = if (dark) ColorMs.White else ColorMs.Text333,
+                fontSize = hSp(15f),
+                maxLines = 1,
+                overflow = TextOverflow.Ellipsis,
+            )
+            Text(
+                artist,
+                color = ColorMs.Gray999,
+                fontSize = hSp(12f),
+                maxLines = 1,
+                overflow = TextOverflow.Ellipsis,
+            )
+        }
+    }
+}
+
+@Composable
+private fun TransferDefaultLogo(modifier: Modifier = Modifier) {
+    val dark = LocalDarkTheme.current
+    Image(
+        painter = painterResource(if (dark) Res.drawable.llmp_logo_dark else Res.drawable.llmp_logo_light),
+        contentDescription = null,
+        contentScale = ContentScale.Fit,
+        modifier = modifier,
+    )
+}
+
 @Composable
 private fun KeepScreenOn() {
     DisposableEffect(Unit) {
@@ -588,6 +610,7 @@ private fun TransferCoverBlock(
     coverKey: String,
     song: String,
     artist: String,
+    size: Dp,
     onIdleChange: (Boolean) -> Unit,
     onDisplayedSongChange: (String, String) -> Unit,
 ) {
@@ -642,13 +665,15 @@ private fun TransferCoverBlock(
     CoverCarouselPager(
         state = pagerState,
         userScrollEnabled = false,
+        verticalOffset = 0.dp,
         modifier = Modifier
             .fillMaxWidth()
-            .height(343.dp),
+            .height(size),
     ) { page ->
         val cover = covers[page]
         TransferCoverCircle(
             cover = cover,
+            size = minOf(CoverCarouselSize, size * 0.8f),
             onReady = {
                 if (cover.pageId !in readyCoverPages) {
                     readyCoverPages.add(cover.pageId)
@@ -670,24 +695,22 @@ private data class TransferCoverPage(
 @Composable
 private fun TransferCoverCircle(
     cover: TransferCoverPage,
+    size: Dp,
     onReady: () -> Unit,
 ) {
     var loadFailed by remember(cover.url) { mutableStateOf(false) }
     val latestOnReady by rememberUpdatedState(onReady)
     Box(
         Modifier
-            .size(CoverCarouselSize)
+            .size(size)
             .clip(CircleShape),
         contentAlignment = Alignment.Center,
     ) {
         // 默认图始终垫在底层，即使图片请求重建或超时也不会露出白色空帧。
-        Image(
+        TransferDefaultLogo(
-            painter = painterResource(Res.drawable.logo_logo),
+            Modifier
-            contentDescription = null,
-            contentScale = ContentScale.Fit,
-            modifier = Modifier
                 .fillMaxSize()
-                .padding(36.dp),
+                .padding(size * 0.15f),
         )
         if (cover.url.isBlank() || loadFailed) {
             LaunchedEffect(cover.key, loadFailed) { latestOnReady() }
@@ -698,7 +721,7 @@ private fun TransferCoverCircle(
                 contentScale = ContentScale.Crop,
                 modifier = Modifier.fillMaxSize(),
                 stableCacheKey = cover.key,
-                decodeSize = CoverCarouselSize,
+                decodeSize = size,
                 onSuccess = { latestOnReady() },
                 onError = {
                     loadFailed = true
@@ -781,27 +804,23 @@ fun DataSyncScreen(onBack: () -> Unit, onOpenScan: () -> Unit) {
         containerColor = bg,
         topBar = { AppHeader(title = tr("data_sync"), onBack = onBack) },
     ) { padding ->
-        Column(
+        PairingPageLayout(
-            Modifier
+            modifier = Modifier.padding(padding).consumeWindowInsets(padding),
-                .padding(padding)
+            illustration = { size ->
-                .fillMaxSize()
+                Box(Modifier.size(size), contentAlignment = Alignment.Center) {
-                .verticalScroll(rememberScrollState()),
-            horizontalAlignment = Alignment.CenterHorizontally,
-        ) {
-            Spacer(Modifier.height(15.dp))
-            Box(Modifier.size(343.dp), contentAlignment = Alignment.Center) {
                     if (connected) {
-                    WaterRipplePlaceholder()
+                        WaterRipplePlaceholder(size)
                     } else {
                         SvgIcon(
                             asset = SvgAsset("drawable/sync_icon_data_sync.svg"),
-                        size = 300.dp,
+                            size = minOf(size, 300.dp),
                         )
                     }
                 }
-            Spacer(Modifier.height(20.dp))
+            },
+        ) {
             PairTipsBlock()
-            Spacer(Modifier.height(60.dp))
+            Spacer(Modifier.height(24.dp))
             if (connected) {
                 PinkFuncButton(
                     title = tr("phone2pc"),
@@ -859,19 +878,19 @@ fun DataSyncScreen(onBack: () -> Unit, onOpenScan: () -> Unit) {
 }
 
 @Composable
-private fun WaterRipplePlaceholder() {
+private fun WaterRipplePlaceholder(size: Dp) {
-    Box(Modifier.size(343.dp), contentAlignment = Alignment.Center) {
+    Box(Modifier.size(size), contentAlignment = Alignment.Center) {
         listOf(0.35f, 0.55f, 0.75f, 0.95f).forEach { scale ->
             Box(
                 Modifier
-                    .size((343 * scale).dp)
+                    .size(size * scale)
                     .clip(CircleShape)
                     .background(ColorMs.PinkF940A7.copy(alpha = 0.08f + (1f - scale) * 0.08f)),
             )
         }
         SvgIcon(
             asset = SvgAsset("drawable/sync_icon_data_sync.svg"),
-            size = 96.dp,
+            size = size * (96f / 343f),
             tint = ColorMs.PinkF940A7,
         )
     }

composeApp/src/commonMain/kotlin/com/zhushenwudi/lovelivemusicplayer/ui/screens/SplashScreen.kt

@@ -1,11 +1,14 @@
 package com.zhushenwudi.lovelivemusicplayer.ui.screens
 
+import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.BoxWithConstraints
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
@@ -23,11 +26,14 @@ import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import kotlinx.coroutines.delay
-import org.jetbrains.compose.resources.ExperimentalResourceApi
+import org.jetbrains.compose.resources.painterResource
 import com.zhushenwudi.lovelivemusicplayer.AppContainer
 import com.zhushenwudi.lovelivemusicplayer.generated.resources.Res
+import com.zhushenwudi.lovelivemusicplayer.generated.resources.launch_background
+import com.zhushenwudi.lovelivemusicplayer.generated.resources.launch_background_dark
 import com.zhushenwudi.lovelivemusicplayer.i18n.tr
 import com.zhushenwudi.lovelivemusicplayer.theme.ColorMs
+import com.zhushenwudi.lovelivemusicplayer.theme.LocalDarkTheme
 import com.zhushenwudi.lovelivemusicplayer.ui.image.LlmpAsyncImage
 import com.zhushenwudi.lovelivemusicplayer.ui.theme.LocalIsLandscape
 import androidx.compose.foundation.layout.navigationBarsPadding
@@ -39,9 +45,9 @@ import kotlin.time.Duration.Companion.seconds
  * 2) 若有本地缓存则随机切换（不等待网络）
  * 3) 倒计时/跳过 → 主页；离开后后台继续网络同步
  */
-@OptIn(ExperimentalResourceApi::class)
 @Composable
 fun SplashScreen(onFinished: () -> Unit) {
+    val dark = LocalDarkTheme.current
     var count by remember { mutableIntStateOf(3) }
     var photoPath by remember { mutableStateOf<String?>(null) }
     var finished by remember { mutableStateOf(false) }
@@ -70,20 +76,35 @@ fun SplashScreen(onFinished: () -> Unit) {
         goHome()
     }
 
-    Box(
+    BoxWithConstraints(
         Modifier
             .fillMaxSize()
-            .background(Color.White),
+            .background(if (dark) ColorMs.NightPrimary else Color.White),
     ) {
         val landscape = LocalIsLandscape.current
-        val model = photoPath ?: Res.getUri("drawable/launch_background.png")
+        if (photoPath == null) {
+            // 独立方形 Logo，横竖屏均居中；不把 app 图标拉伸成全屏图片。
+            val logoSize = minOf(maxWidth * 0.7f, maxHeight * 0.55f, 280.dp)
+            Image(
+                painter = painterResource(
+                    if (dark) Res.drawable.launch_background_dark else Res.drawable.launch_background,
+                ),
+                contentDescription = "LLMP",
+                contentScale = ContentScale.Fit,
+                modifier = Modifier
+                    .align(Alignment.Center)
+                    .size(logoSize)
+                    .clip(RoundedCornerShape(32.dp)),
+            )
+        } else {
             LlmpAsyncImage(
-            model = model,
+                model = photoPath,
                 contentDescription = null,
-            contentScale = if (photoPath != null && !landscape) ContentScale.Crop else ContentScale.Fit,
+                contentScale = if (landscape) ContentScale.Fit else ContentScale.Crop,
                 alignment = if (landscape) Alignment.Center else Alignment.TopCenter,
                 modifier = Modifier.fillMaxSize(),
             )
+        }
         Box(
             modifier = Modifier
                 .align(Alignment.BottomEnd)

composeApp/src/iosMain/kotlin/com/zhushenwudi/lovelivemusicplayer/ui/player/EmptyPlayerTitleFont.ios.kt

@@ -0,0 +1,13 @@
+package com.zhushenwudi.lovelivemusicplayer.ui.player
+
+import androidx.compose.ui.text.ExperimentalTextApi
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.platform.SystemFont
+
+@OptIn(ExperimentalTextApi::class)
+private val EmptyPlayerTitleFont = FontFamily(
+    SystemFont(identity = "PingFang SC", weight = FontWeight.Bold),
+)
+
+internal actual fun emptyPlayerTitleFontFamily(): FontFamily = EmptyPlayerTitleFont

iosApp/iosApp.xcodeproj/project.pbxproj

@@ -15,6 +15,7 @@
 		8070A4B4DD1D3DD823A8F923 /* WidgetAppUtils.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0142951DE661E55DC3207327 /* WidgetAppUtils.swift */; };
 		88ABACE0259DE83261737B99 /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 1285E8A7B7E7359EA11B9591 /* SceneDelegate.swift */; };
 		93FF51B22016695CB74F0AD6 /* HostBridge.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7B6B3C131D45A3E52B69B531 /* HostBridge.swift */; };
+		E305C301A1B24DD0AC001002 /* QrScannerViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = E305C301A1B24DD0AC001001 /* QrScannerViewController.swift */; };
 		A1B2C3D4E5F60718293A4B5C /* BackgroundIntent.swift in Sources */ = {isa = PBXBuildFile; fileRef = 59CDB1C6A666078B3272B409 /* BackgroundIntent.swift */; };
 		A59815941DC5A1C2B9F349CB /* PipScreenManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2016716493FA6F4B6E30EB17 /* PipScreenManager.swift */; };
 		B7C8D9E0F1A234567890ABCD /* InAppWebViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = A1B2C3D4E5F6789012345678 /* InAppWebViewController.swift */; };
@@ -61,6 +62,7 @@
 		310E847101B97B7A36776025 /* CarPlaySceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CarPlaySceneDelegate.swift; sourceTree = "<group>"; };
 		59CDB1C6A666078B3272B409 /* BackgroundIntent.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BackgroundIntent.swift; sourceTree = "<group>"; };
 		7B6B3C131D45A3E52B69B531 /* HostBridge.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HostBridge.swift; sourceTree = "<group>"; };
+		E305C301A1B24DD0AC001001 /* QrScannerViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = QrScannerViewController.swift; sourceTree = "<group>"; };
 		86038AE1032E284E79B32AD6 /* iosApp.app */ = {isa = PBXFileReference; includeInIndex = 0; lastKnownFileType = wrapper.application; path = iosApp.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		88A292AA7607F14E8C66291E /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		8B6C1F485E0CF8BB70C9DDD2 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
@@ -111,6 +113,7 @@
 				A1B2C3D4E5F6789012345678 /* InAppWebViewController.swift */,
 				B2C3D4E5F67890123456789 /* WebViewContentBlocker.swift */,
 				7B6B3C131D45A3E52B69B531 /* HostBridge.swift */,
+				E305C301A1B24DD0AC001001 /* QrScannerViewController.swift */,
 				D1E2F3A4B5C60718293A4B01 /* QqShareHost.swift */,
 				D1E2F3A4B5C60718293A4B07 /* iosApp-Bridging-Header.h */,
 				1285E8A7B7E7359EA11B9591 /* SceneDelegate.swift */,
@@ -324,6 +327,7 @@
 				FA6C12E55F9D41237B4BDAF1 /* CarPlaySceneDelegate.swift in Sources */,
 				56B0305B5D3847FC6B326502 /* ContentView.swift in Sources */,
 				93FF51B22016695CB74F0AD6 /* HostBridge.swift in Sources */,
+				E305C301A1B24DD0AC001002 /* QrScannerViewController.swift in Sources */,
 				A59815941DC5A1C2B9F349CB /* PipScreenManager.swift in Sources */,
 				88ABACE0259DE83261737B99 /* SceneDelegate.swift in Sources */,
 				8070A4B4DD1D3DD823A8F923 /* WidgetAppUtils.swift in Sources */,

iosApp/iosApp/AppDelegate.swift

@@ -48,6 +48,13 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     }
 
     private func registerHostNotifications() {
+        NotificationCenter.default.addObserver(
+            forName: Notification.Name("llmpOpenQrScanner"),
+            object: nil,
+            queue: .main
+        ) { notification in
+            HostBridge.shared.presentQrScanner(from: notification.userInfo)
+        }
         NotificationCenter.default.addObserver(
             forName: Notification.Name("llmpShareRequest"),
             object: nil,

iosApp/iosApp/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -1,5 +1,17 @@
 {
     "images": [
+        {
+            "appearances": [
+                {
+                    "appearance": "luminosity",
+                    "value": "dark"
+                }
+            ],
+            "size": "1024x1024",
+            "idiom": "universal",
+            "platform": "ios",
+            "filename": "icon-dark-1024.png"
+        },
         {
             "size": "20x20",
             "idiom": "iphone",
@@ -117,6 +129,6 @@
     ],
     "info": {
         "version": 1,
-        "author": "icon.wuruihong.com"
+        "author": "xcode"
     }
 }

iosApp/iosApp/HostBridge.swift

@@ -7,6 +7,7 @@ final class HostBridge {
     static let shared = HostBridge()
     private var localNetworkBrowser: NWBrowser?
     private var localNetworkTimeout: DispatchWorkItem?
+    private var qrScanner: QrScannerViewController?
 
     /// iOS 没有显式的本地网络权限 API；开始 Bonjour 浏览会在首次进入传输页时触发系统授权。
     func requestLocalNetworkPermission() {
@@ -139,6 +140,28 @@ final class HostBridge {
         root.present(nav, animated: true)
     }
 
+    func presentQrScanner(from userInfo: [AnyHashable: Any]?) {
+        guard let requestId = userInfo?["requestId"] as? String else { return }
+        let reply: (String) -> Void = { result in
+            NotificationCenter.default.post(
+                name: Notification.Name("llmpQrScanResult"),
+                object: nil,
+                userInfo: ["requestId": requestId, "result": result]
+            )
+        }
+        guard qrScanner == nil, let root = topViewController(), !root.isBeingDismissed else {
+            reply("")
+            return
+        }
+        let scanner = QrScannerViewController(labels: userInfo ?? [:]) { [weak self] result in
+            self?.qrScanner = nil
+            reply(result)
+        }
+        qrScanner = scanner
+        scanner.modalPresentationStyle = .fullScreen
+        root.present(scanner, animated: true)
+    }
+
     private func topViewController() -> UIViewController? {
         let scenes = UIApplication.shared.connectedScenes
             .compactMap { $0 as? UIWindowScene }

iosApp/iosApp/QrScannerViewController.swift

@@ -0,0 +1,211 @@
+import AVFoundation
+import UIKit
+
+/// Native camera scanner shared by song transfer and data sync.
+final class QrScannerViewController: UIViewController, AVCaptureMetadataOutputObjectsDelegate {
+    private let labels: [AnyHashable: Any]
+    private let onResult: (String) -> Void
+    private let session = AVCaptureSession()
+    private let sessionQueue = DispatchQueue(label: "llmp.qr-camera")
+    private lazy var preview = AVCaptureVideoPreviewLayer(session: session)
+    // Camera configuration and start/stop are serialized on sessionQueue.
+    private var configured = false
+    private var finished = false
+    private var requestedCamera = false
+    private var foregroundObserver: NSObjectProtocol?
+
+    init(labels: [AnyHashable: Any], onResult: @escaping (String) -> Void) {
+        self.labels = labels
+        self.onResult = onResult
+        super.init(nibName: nil, bundle: nil)
+    }
+
+    required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }
+
+    deinit {
+        if let foregroundObserver { NotificationCenter.default.removeObserver(foregroundObserver) }
+    }
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        view.backgroundColor = .black
+        preview.videoGravity = .resizeAspectFill
+        view.layer.addSublayer(preview)
+
+        let cancel = UIButton(type: .system)
+        var cancelStyle = UIButton.Configuration.plain()
+        cancelStyle.title = label("cancel")
+        cancelStyle.baseForegroundColor = .white
+        cancelStyle.background.backgroundColor = UIColor.black.withAlphaComponent(0.6)
+        cancelStyle.background.cornerRadius = 12
+        cancelStyle.contentInsets = NSDirectionalEdgeInsets(top: 12, leading: 20, bottom: 12, trailing: 20)
+        cancel.configuration = cancelStyle
+        cancel.addTarget(self, action: #selector(cancelScan), for: .touchUpInside)
+        cancel.translatesAutoresizingMaskIntoConstraints = false
+        view.addSubview(cancel)
+
+        let hint = UILabel()
+        hint.text = label("title")
+        hint.textColor = .white
+        hint.font = .systemFont(ofSize: 18, weight: .medium)
+        hint.textAlignment = .center
+        hint.numberOfLines = 0
+        hint.backgroundColor = UIColor.black.withAlphaComponent(0.6)
+        hint.layer.cornerRadius = 12
+        hint.clipsToBounds = true
+        hint.translatesAutoresizingMaskIntoConstraints = false
+        view.addSubview(hint)
+        NSLayoutConstraint.activate([
+            cancel.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor, constant: 20),
+            cancel.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor, constant: 16),
+            hint.centerXAnchor.constraint(equalTo: view.centerXAnchor),
+            hint.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor, constant: -24),
+            hint.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor, constant: 24),
+            hint.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor, constant: -24),
+            hint.heightAnchor.constraint(greaterThanOrEqualToConstant: 56),
+        ])
+        foregroundObserver = NotificationCenter.default.addObserver(
+            forName: UIApplication.didBecomeActiveNotification, object: nil, queue: .main
+        ) { [weak self] _ in
+            guard let self, !self.finished, self.viewIfLoaded?.window != nil else { return }
+            self.startConfiguredSession()
+        }
+    }
+
+    override func viewDidAppear(_ animated: Bool) {
+        super.viewDidAppear(animated)
+        guard !requestedCamera else { startConfiguredSession(); return }
+        requestedCamera = true
+        switch AVCaptureDevice.authorizationStatus(for: .video) {
+        case .authorized:
+            configureCamera()
+        case .notDetermined:
+            AVCaptureDevice.requestAccess(for: .video) { [weak self] granted in
+                DispatchQueue.main.async {
+                    guard let self, !self.finished else { return }
+                    if granted { self.configureCamera() } else { self.showFailure("permission", offerSettings: true) }
+                }
+            }
+        case .denied, .restricted:
+            showFailure("permission", offerSettings: true)
+        @unknown default:
+            showFailure("failed")
+        }
+    }
+
+    override func viewWillDisappear(_ animated: Bool) {
+        super.viewWillDisappear(animated)
+        sessionQueue.async { [session] in
+            if session.isRunning { session.stopRunning() }
+        }
+    }
+
+    override func viewDidDisappear(_ animated: Bool) {
+        super.viewDidDisappear(animated)
+        // Also release the Kotlin request if the host dismisses this screen externally.
+        if isBeingDismissed && !finished {
+            finished = true
+            onResult("")
+        }
+    }
+
+    override func viewDidLayoutSubviews() {
+        super.viewDidLayoutSubviews()
+        preview.frame = view.bounds
+        guard let orientation = view.window?.windowScene?.interfaceOrientation,
+              let connection = preview.connection else { return }
+        let angle: CGFloat
+        switch orientation {
+        case .landscapeLeft: angle = 180
+        case .landscapeRight: angle = 0
+        case .portraitUpsideDown: angle = 270
+        default: angle = 90
+        }
+        if connection.isVideoRotationAngleSupported(angle) { connection.videoRotationAngle = angle }
+    }
+
+    private func configureCamera() {
+        sessionQueue.async { [weak self] in
+            guard let self else { return }
+            guard let camera = AVCaptureDevice.default(for: .video) else {
+                self.reportFailure("unavailable")
+                return
+            }
+            do {
+                let input = try AVCaptureDeviceInput(device: camera)
+                let output = AVCaptureMetadataOutput()
+                self.session.beginConfiguration()
+                self.session.sessionPreset = .high
+                guard self.session.canAddInput(input), self.session.canAddOutput(output) else {
+                    self.session.commitConfiguration()
+                    self.reportFailure("failed")
+                    return
+                }
+                self.session.addInput(input)
+                self.session.addOutput(output)
+                guard output.availableMetadataObjectTypes.contains(.qr) else {
+                    self.session.commitConfiguration()
+                    self.reportFailure("failed")
+                    return
+                }
+                output.setMetadataObjectsDelegate(self, queue: .main)
+                output.metadataObjectTypes = [.qr]
+                self.session.commitConfiguration()
+                self.configured = true
+                self.session.startRunning()
+                DispatchQueue.main.async { [weak self] in self?.view.setNeedsLayout() }
+            } catch {
+                self.reportFailure("failed")
+            }
+        }
+    }
+
+    private func startConfiguredSession() {
+        guard !finished else { return }
+        sessionQueue.async { [weak self] in
+            guard let self, self.configured, !self.session.isRunning else { return }
+            self.session.startRunning()
+        }
+    }
+
+    private func reportFailure(_ key: String) {
+        DispatchQueue.main.async { [weak self] in self?.showFailure(key) }
+    }
+
+    private func showFailure(_ key: String, offerSettings: Bool = false) {
+        guard !finished, presentedViewController == nil else { return }
+        let alert = UIAlertController(title: label("title"), message: label(key), preferredStyle: .alert)
+        alert.addAction(UIAlertAction(title: label("cancel"), style: .cancel) { [weak self] _ in self?.finish("") })
+        if offerSettings {
+            alert.addAction(UIAlertAction(title: label("settings"), style: .default) { [weak self] _ in
+                self?.finish("") {
+                    if let url = URL(string: UIApplication.openSettingsURLString) { UIApplication.shared.open(url) }
+                }
+            })
+        }
+        present(alert, animated: true)
+    }
+
+    private func label(_ key: String) -> String { labels[key] as? String ?? "" }
+
+    @objc private func cancelScan() { finish("") }
+
+    private func finish(_ result: String, completion: (() -> Void)? = nil) {
+        guard !finished else { return }
+        finished = true
+        sessionQueue.async { [session] in
+            if session.isRunning { session.stopRunning() }
+        }
+        dismiss(animated: true) { [onResult] in
+            onResult(result)
+            completion?()
+        }
+    }
+
+    func metadataOutput(_ output: AVCaptureMetadataOutput, didOutput objects: [AVMetadataObject], from connection: AVCaptureConnection) {
+        guard !finished,
+              let code = objects.compactMap({ $0 as? AVMetadataMachineReadableCodeObject }).first,
+              let value = code.stringValue, !value.isEmpty else { return }
+        finish(value)
+    }
+}

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

@@ -1,6 +1,9 @@
 package com.zhushenwudi.lovelivemusicplayer.i18n
 
 internal val DeStrings: Map<String, String> = mapOf(
+    "open_drawer" to "Menü öffnen",
+    "qr_camera_unavailable" to "Kamera nicht verfügbar. Bitte die PC-IP manuell eingeben.",
+    "qr_scan_failed" to "Scan konnte nicht gestartet werden. Erneut versuchen oder die PC-IP manuell eingeben.",
     "music" to "Die Musik",
     "album" to "Das Album",
     "music_name" to "Der Liedtitel",

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

@@ -1,6 +1,9 @@
 package com.zhushenwudi.lovelivemusicplayer.i18n
 
 internal val EnStrings: Map<String, String> = mapOf(
+    "open_drawer" to "Open menu",
+    "qr_camera_unavailable" to "Camera unavailable. Please enter your PC IP manually.",
+    "qr_scan_failed" to "Could not start scanning. Try again or enter your PC IP manually.",
     "music" to "Music",
     "album" to "Album",
     "music_name" to "Music name",

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

@@ -1,6 +1,9 @@
 package com.zhushenwudi.lovelivemusicplayer.i18n
 
 internal val JaStrings: Map<String, String> = mapOf(
+    "open_drawer" to "メニューを開く",
+    "qr_camera_unavailable" to "カメラを使用できません。PCのIPアドレスを手動で入力してください。",
+    "qr_scan_failed" to "スキャンを開始できません。再試行するかPCのIPアドレスを手動で入力してください。",
     "music" to "曲",
     "album" to "アルバム",
     "music_name" to "曲名",

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

@@ -1,6 +1,9 @@
 package com.zhushenwudi.lovelivemusicplayer.i18n
 
 internal val ZhStrings: Map<String, String> = mapOf(
+    "open_drawer" to "打开菜单",
+    "qr_camera_unavailable" to "当前设备无法使用摄像头，请手动输入电脑 IP",
+    "qr_scan_failed" to "无法启动扫码，请稍后重试或手动输入电脑 IP",
     "music" to "歌曲",
     "album" to "专辑",
     "music_name" to "歌名",

shared/src/iosMain/kotlin/com/zhushenwudi/lovelivemusicplayer/platform/PlatformUi.ios.kt

@@ -3,6 +3,10 @@ package com.zhushenwudi.lovelivemusicplayer.platform
 import kotlinx.cinterop.ExperimentalForeignApi
 import platform.Foundation.NSURL
 import platform.Foundation.NSURLComponents
+import platform.Foundation.NSNotificationCenter
+import platform.Foundation.NSOperationQueue
+import platform.darwin.NSObjectProtocol
+import com.zhushenwudi.lovelivemusicplayer.i18n.I18n
 import platform.UIKit.UIApplication
 import platform.darwin.dispatch_async
 import platform.darwin.dispatch_get_main_queue
@@ -10,9 +14,37 @@ import kotlin.system.exitProcess
 
 @OptIn(ExperimentalForeignApi::class)
 actual object PlatformUi {
+    private var qrObserver: NSObjectProtocol? = null
+    private var qrRequestId = 0L
+
     actual fun openQrScanner(onResult: (String) -> Unit) {
-        // iOS 相机扫码由 Swift 承载；common UI 仍支持 IP 粘贴。
+        // 重复点击只打开一个扫码器；取消/失败也必须回传并清理观察者。
-        onResult("")
+        if (qrObserver != null) return
+        val requestId = (++qrRequestId).toString()
+        val center = NSNotificationCenter.defaultCenter
+        qrObserver = center.addObserverForName(
+            "llmpQrScanResult",
+            `object` = null,
+            queue = NSOperationQueue.mainQueue,
+        ) { notification ->
+            if (notification?.userInfo?.get("requestId") != requestId) return@addObserverForName
+            val result = notification.userInfo?.get("result") as? String ?: ""
+            qrObserver?.let { center.removeObserver(it) }
+            qrObserver = null
+            onResult(result)
+        }
+        WidgetDataWriter.post(
+            "llmpOpenQrScanner",
+            mapOf(
+                "requestId" to requestId,
+                "title" to I18n.t("scan_qr_prompt"),
+                "cancel" to I18n.t("cancel"),
+                "permission" to I18n.t("camera_permission"),
+                "settings" to I18n.t("system_settings"),
+                "unavailable" to I18n.t("qr_camera_unavailable"),
+                "failed" to I18n.t("qr_scan_failed"),
+            ),
+        )
     }
 
     actual fun openWebView(url: String, title: String?) {