feat: media session source and media card

2026-08-16 16:49:41 +08:00
parent 695df96c24
commit b157dac7ae
6 changed files with 154 additions and 0 deletions
@@ -0,0 +1,41 @@
+package top.yeij.hearth.media
+
+import android.content.Context
+import android.media.MediaMetadata
+import android.media.session.MediaController
+import android.media.session.MediaSessionManager
+import android.media.session.PlaybackState
+import android.util.Log
+
+// 监听系统活跃媒体会话，取第一个 controller 的 metadata + playbackState 构造 MediaInfo 回调
+// Watch active media sessions; build MediaInfo from the first controller's metadata + playbackState
+class MediaSessionSource(context: Context) {
+    private val msm = context.getSystemService(Context.MEDIA_SESSION_SERVICE) as MediaSessionManager
+    private var listener: ((MediaInfo?) -> Unit)? = null
+
+    fun start(cb: (MediaInfo?) -> Unit) {
+        listener = cb
+        msm.addOnActiveSessionsChangedListener({ controllers ->
+            val c = controllers?.firstOrNull()
+            if (c == null) {
+                Log.d("HearthMedia", "no active media session")
+                cb(null)
+                return@addOnActiveSessionsChangedListener
+            }
+            val meta = c.metadata
+            val state = c.playbackState
+            cb(
+                MediaInfo(
+                    meta?.getString(MediaMetadata.METADATA_KEY_TITLE) ?: "",
+                    meta?.getString(MediaMetadata.METADATA_KEY_ARTIST) ?: "",
+                    meta?.getString(MediaMetadata.METADATA_KEY_ALBUM) ?: "",
+                    state?.state == PlaybackState.STATE_PLAYING,
+                    state?.position ?: 0L,
+                    meta?.getLong(MediaMetadata.METADATA_KEY_DURATION) ?: 0L,
+                    c.packageName,
+                )
+            )
+            Log.d("HearthMedia", "media: ${c.packageName}")
+        }, null)
+    }
+}