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

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
     }