fix: grid minmax, media polling fallback, content webview layout, swipe timeout

app/src/main/assets/h5/css/app.css

@@ -126,7 +126,7 @@ body {
   flex: 1;
   min-height: 0;
   display: grid;
-  grid-template-columns: repeat(3, 1fr);
+  grid-template-columns: repeat(3, minmax(0, 1fr));
   grid-auto-rows: 1fr;
   gap: 16px;
   padding: 16px;
@@ -172,7 +172,7 @@ body {
 }
 
 .time-card .big {
-  font-size: 56px;
+  font-size: clamp(26px, 3.5vw, 52px);
   font-weight: 300;
   line-height: 1;
   /* 等宽数字：1 和 0 等宽，避免时间刷新时卡片宽度抖动 */
@@ -275,9 +275,8 @@ body {
   margin-top: 2px;
   font-size: 13px;
   color: var(--text-dim);
-  overflow: hidden;
+  white-space: normal;
-  text-overflow: ellipsis;
+  word-break: break-word;
-  white-space: nowrap;
 }
 
 /* 进度条 */
@@ -298,6 +297,18 @@ body {
   transition: width .3s linear;
 }
 
+/* 无时长信息时的活动脉冲进度条 */
+/* Indeterminate pulse when no duration is available */
+.media-card .bar.indeterminate {
+  width: 40%;
+  animation: bar-pulse 1.5s ease-in-out infinite;
+}
+
+@keyframes bar-pulse {
+  0%, 100% { transform: translateX(0); }
+  50% { transform: translateX(150%); }
+}
+
 /* 控制按钮：SVG 图标 + 按压动画 */
 /* Controls: SVG icons + press animation */
 .media-card .controls {

app/src/main/assets/h5/js/pages/home.js

@@ -192,7 +192,13 @@ function startMediaTicker() {
     const bar = document.querySelector('.media-card .bar');
     if (!bar || !mediaProgressState) return;
     const { position, duration, playing, updatedAt } = mediaProgressState;
-    if (!duration) return;
+    if (!duration) {
+      // 无时长信息（部分 App 不提供 duration）：显示活动脉冲而非空白
+      // No duration (some apps omit it): show an indeterminate pulse instead of blank
+      bar.classList.add('indeterminate');
+      return;
+    }
+    bar.classList.remove('indeterminate');
     const pos = playing ? position + (Date.now() - updatedAt) : position;
     bar.style.width = Math.min(100, (pos / duration) * 100) + '%';
   }, 1000);
@@ -242,11 +248,15 @@ function switchMedia(delta) {
   const outClass = delta > 0 ? 'slide-out-left' : 'slide-out-right';
   const inClass = delta > 0 ? 'slide-in-right' : 'slide-in-left';
   old.classList.add(outClass);
-  old.addEventListener('animationend', () => {
+  // 用 setTimeout 替代 animationend（更可靠，避免动画事件丢失导致"只能划一次"）
+  // Use setTimeout instead of animationend (more reliable, avoids the "swipe once
+  // then stuck" issue when the animation event is lost)
+  setTimeout(() => {
+    if (!old.isConnected) return;
     const fresh = renderMediaCard(info);
     fresh.classList.add(inClass);
     old.replaceWith(fresh);
-  }, { once: true });
+  }, 180);
 }
 
 // 转义 HTML 特殊字符，避免媒体元数据注入标签

app/src/main/java/top/yeij/hearth/MainActivity.kt

@@ -54,6 +54,10 @@ class MainActivity : Activity() {
         // 内容 WebView 顶栏预留高度（dp）
         // Topbar reserved height for content WebViews (dp)
         private const val TOPBAR_HEIGHT_DP = 44
+        // 全局侧边栏收起宽度（dp），内容 WebView 左侧预留，避免挡住侧边栏
+        // Global sidebar collapsed width (dp); content WebViews reserve it on the
+        // left to avoid covering the sidebar
+        private const val SIDEBAR_WIDTH_DP = 80
     }
 
     private val webAppContainer = WebAppContainer()
@@ -237,6 +241,9 @@ class MainActivity : Activity() {
         private val topBarHeightPx by lazy {
             (TOPBAR_HEIGHT_DP * resources.displayMetrics.density).toInt()
         }
+        private val sidebarWidthPx by lazy {
+            (SIDEBAR_WIDTH_DP * resources.displayMetrics.density).toInt()
+        }
 
         override fun openWebView(id: String, url: String) {
             if (contentWebViews.containsKey(id)) {
@@ -261,6 +268,7 @@ class MainActivity : Activity() {
                 ViewGroup.LayoutParams.MATCH_PARENT
             )
             params.topMargin = topBarHeightPx
+            params.leftMargin = sidebarWidthPx
             contentWebViews[id] = webView
             root.addView(webView, params)
             webView.loadUrl(url)

app/src/main/java/top/yeij/hearth/media/MediaSessionSource.kt

@@ -8,6 +8,8 @@ import android.media.MediaMetadata
 import android.media.session.MediaController
 import android.media.session.MediaSessionManager
 import android.media.session.PlaybackState
+import android.os.Handler
+import android.os.Looper
 import android.util.Base64
 import android.util.Log
 import java.io.ByteArrayOutputStream
@@ -33,6 +35,18 @@ class MediaSessionSource(context: Context) {
     private var registered = false
     private val controllers = mutableListOf<MediaController>()
 
+    // 轮询兜底：registerCallback 在部分场景不触发（如歌词实时更新时），
+    // 每 2 秒主动拉取一次进度/状态，保证进度条与信息持续更新
+    // Polling fallback: registerCallback doesn't always fire (e.g. live lyrics),
+    // so actively pull progress/state every 2s to keep the bar and info fresh
+    private val pollHandler = Handler(Looper.getMainLooper())
+    private val pollRunnable = object : Runnable {
+        override fun run() {
+            refresh()
+            pollHandler.postDelayed(this, 2000)
+        }
+    }
+
     // 元数据/播放状态变化回调：切歌、暂停/播放时实时推送
     // Metadata/playback-state change callback: push in real time on track switch or play/pause
     private val mediaCallback = object : MediaController.Callback() {
@@ -69,6 +83,9 @@ class MediaSessionSource(context: Context) {
             Log.d(TAG, "start: media session listener registered")
             updateControllers(msm.getActiveSessions(listenerComponent))
             pushCurrent()
+            // 启动轮询兜底
+            pollHandler.removeCallbacks(pollRunnable)
+            pollHandler.postDelayed(pollRunnable, 2000)
         } catch (e: SecurityException) {
             // 未授权「通知使用权」时系统抛 SecurityException：媒体监听降级为不可用，不崩溃。
             // MediaSessionService throws SecurityException without notification access;
@@ -87,6 +104,7 @@ class MediaSessionSource(context: Context) {
             Log.d(TAG, "stop: media session listener removed")
         }
         unregisterCallbacks()
+        pollHandler.removeCallbacks(pollRunnable)
         callback = null
     }
 

app/src/main/java/top/yeij/hearth/webview/WebViewManager.kt

@@ -26,12 +26,14 @@ class WebViewManager(private val activity: Activity) {
     }
 
     // 创建内容 WebView（webAPP 标签页），仅配置不加载、不挂载（由宿主管理）
+    // 透明背景：webAPP 未声明背景色时透出桌面壁纸，而非默认白底
     // Create a content WebView (webapp tab), configured but not loaded/attached
-    // (lifecycle is managed by the host)
+    // (lifecycle is managed by the host); transparent background so a webapp without
+    // a declared background shows the wallpaper instead of a default white
     @SuppressLint("SetJavaScriptEnabled")
     fun createContentWebView(): WebView {
         val webView = WebView(activity)
-        webView.setBackgroundColor(Color.WHITE)
+        webView.setBackgroundColor(Color.TRANSPARENT)
         configure(webView)
         return webView
     }