mod: 视频单例模式

lib/pages/liveRoom/controller.dart

@@ -14,7 +14,7 @@ class LiveRoomController extends GetxController {
   // 静音状态
   RxBool volumeOff = false.obs;
   PlPlayerController plPlayerController =
-      PlPlayerController(controlsEnabled: false);
+      PlPlayerController.getInstance(controlsEnabled: false);
 
   // MeeduPlayerController meeduPlayerController = MeeduPlayerController(
   //   colorTheme: Theme.of(Get.context!).colorScheme.primary,

lib/pages/video/detail/controller.dart

@@ -54,7 +54,7 @@ class VideoDetailController extends GetxController
   RxString bgCover = ''.obs;
   Box user = GStrorage.user;
   Box localCache = GStrorage.localCache;
-  PlPlayerController plPlayerController = PlPlayerController();
+  PlPlayerController plPlayerController = PlPlayerController.getInstance();
   // 是否开始自动播放 存在多p的情况下，第二p需要为true
   RxBool autoPlay = true.obs;
   // 视频资源是否有效
@@ -62,6 +62,11 @@ class VideoDetailController extends GetxController
   // 封面图的展示
   RxBool isShowCover = true.obs;
 
+  late VideoItem firstVideo;
+  late String videoUrl;
+  late String audioUrl;
+  late Duration defaultST;
+
   @override
   void onInit() {
     super.onInit();
@@ -107,7 +112,7 @@ class VideoDetailController extends GetxController
   /// 更新画质、音质
   /// TODO 继续进度播放
   updatePlayer() {
-    Duration position = plPlayerController.position.value;
+    defaultST = plPlayerController.position.value;
     plPlayerController.removeListeners();
     plPlayerController.isBuffering.value = false;
     plPlayerController.buffered.value = Duration.zero;
@@ -115,24 +120,23 @@ class VideoDetailController extends GetxController
     /// 暂不匹配解码规则
 
     /// 根据currentVideoQa 重新设置videoUrl
-    VideoItem firstVideo =
+    firstVideo =
         data.dash!.video!.firstWhere((i) => i.id == currentVideoQa.code);
-    // String videoUrl = firstVideo.baseUrl!;
+    videoUrl = firstVideo.baseUrl!;
 
     /// 根据currentAudioQa 重新设置audioUrl
     AudioItem firstAudio =
         data.dash!.audio!.firstWhere((i) => i.id == currentAudioQa.code);
-    String audioUrl = firstAudio.baseUrl ?? '';
+    audioUrl = firstAudio.baseUrl ?? '';
 
-    playerInit(firstVideo, audioUrl, defaultST: position);
+    playerInit();
   }
 
-  Future playerInit(firstVideo, audioSource,
-      {Duration defaultST = Duration.zero, int duration = 0}) async {
+  Future playerInit({video, audio, seekToTime, duration}) async {
     await plPlayerController.setDataSource(
       DataSource(
-        videoSource: firstVideo.baseUrl,
-        audioSource: audioSource,
+        videoSource: video ?? videoUrl,
+        audioSource: audio ?? audioUrl,
         type: DataSourceType.network,
         httpHeaders: {
           'user-agent':
@@ -143,11 +147,14 @@ class VideoDetailController extends GetxController
       // 硬解
       enableHA: true,
       autoplay: autoPlay.value,
-      seekTo: defaultST,
-      duration: Duration(milliseconds: duration),
+      seekTo: seekToTime ?? defaultST,
+      duration: duration ?? Duration(milliseconds: data.timeLength ?? 0),
       // 宽>高 水平 否则 垂直
-      direction:
-          firstVideo.width - firstVideo.height > 0 ? 'horizontal' : 'vertical',
+      direction: (firstVideo.width! - firstVideo.height!) > 0
+          ? 'horizontal'
+          : 'vertical',
+      // 默认1倍速
+      speed: 1.0,
     );
   }
 
@@ -163,25 +170,21 @@ class VideoDetailController extends GetxController
       data = result['data'];
 
       /// 优先顺序 省流模式 -> 设置中指定质量 -> 当前可选的最高质量
-      VideoItem firstVideo = data.dash!.video!.first;
-      // String videoUrl = firstVideo.baseUrl!;
+      firstVideo = data.dash!.video!.first;
+      videoUrl = firstVideo.baseUrl!;
       //
       currentVideoQa = VideoQualityCode.fromCode(firstVideo.id!)!;
 
       /// 优先顺序 设置中指定质量 -> 当前可选的最高质量
       AudioItem firstAudio =
           data.dash!.audio!.isNotEmpty ? data.dash!.audio!.first : AudioItem();
-      String audioUrl = firstAudio.baseUrl ?? '';
+      audioUrl = firstAudio.baseUrl ?? '';
       //
       if (firstAudio.id != null) {
         currentAudioQa = AudioQualityCode.fromCode(firstAudio.id!)!;
       }
-      await playerInit(
-        firstVideo,
-        audioUrl,
-        defaultST: Duration(milliseconds: data.lastPlayTime!),
-        duration: data.timeLength ?? 0,
-      );
+      defaultST = Duration(milliseconds: data.lastPlayTime!);
+      await playerInit();
     } else {
       SmartDialog.showToast(result['msg'].toString());
     }

lib/pages/video/detail/view.dart

@@ -49,8 +49,25 @@ class _VideoDetailPageState extends State<VideoDetailPage>
   void initState() {
     super.initState();
     plPlayerController = videoDetailController.plPlayerController;
+    playerListener();
+
+    appbarStream = StreamController<double>();
+
+    _extendNestCtr.addListener(
+      () {
+        double offset = _extendNestCtr.position.pixels;
+        appbarStream.add(offset);
+      },
+    );
+
+    statusBarHeight = localCache.get('statusBarHeight');
+    _futureBuilderFuture = videoDetailController.queryVideoUrl();
+  }
+
+  // 播放器状态监听
+  void playerListener() {
     plPlayerController!.onPlayerStatusChanged.listen(
-      (PlayerStatus status) {
+      (PlayerStatus status) async {
         videoDetailController.markHeartBeat();
         playerStatus = status;
         if (status == PlayerStatus.playing) {
@@ -68,18 +85,6 @@ class _VideoDetailPageState extends State<VideoDetailPage>
         }
       },
     );
-
-    appbarStream = StreamController<double>();
-
-    _extendNestCtr.addListener(
-      () {
-        double offset = _extendNestCtr.position.pixels;
-        appbarStream.add(offset);
-      },
-    );
-
-    statusBarHeight = localCache.get('statusBarHeight');
-    _futureBuilderFuture = videoDetailController.queryVideoUrl();
   }
 
   // 继续播放或重新播放
@@ -104,6 +109,7 @@ class _VideoDetailPageState extends State<VideoDetailPage>
     if (videoDetailController.timer!.isActive) {
       videoDetailController.timer!.cancel();
     }
+    videoDetailController.defaultST = plPlayerController!.position.value;
     plPlayerController!.pause();
     super.didPushNext();
   }
@@ -111,6 +117,7 @@ class _VideoDetailPageState extends State<VideoDetailPage>
   @override
   // 返回当前页面时
   void didPopNext() async {
+    videoDetailController.playerInit();
     if (_extendNestCtr.position.pixels == 0) {
       await Future.delayed(const Duration(milliseconds: 300));
       plPlayerController!.play();

lib/plugin/pl_player/controller.dart

@@ -2,7 +2,6 @@ import 'dart:async';
 import 'dart:typed_data';
 
 import 'package:flutter/material.dart';
-import 'package:flutter/painting.dart';
 import 'package:get/get.dart';
 import 'package:hive/hive.dart';
 import 'package:media_kit/media_kit.dart';
@@ -13,7 +12,7 @@ import 'package:pilipala/utils/storage.dart';
 import 'package:screen_brightness/screen_brightness.dart';
 import 'package:universal_platform/universal_platform.dart';
 import 'package:volume_controller/volume_controller.dart';
-import 'package:wakelock_plus/wakelock_plus.dart';
+// import 'package:wakelock_plus/wakelock_plus.dart';
 
 import 'models/data_status.dart';
 import 'models/play_speed.dart';
@@ -25,6 +24,9 @@ class PlPlayerController {
   Player? _videoPlayerController;
   VideoController? _videoController;
 
+  // 添加一个私有静态变量来保存实例
+  static PlPlayerController? _instance;
+
   // 流事件  监听播放状态变化
   StreamSubscription? _playerEventSubs;
 
@@ -44,6 +46,8 @@ class PlPlayerController {
   final Rx<Duration> _duration = Rx(Duration.zero);
   final Rx<Duration> _buffered = Rx(Duration.zero);
 
+  final Rx<int> _playerCount = Rx(0);
+
   final Rx<double> _playbackSpeed = 1.0.obs;
   final Rx<double> _currentVolume = 1.0.obs;
   final Rx<double> _currentBrightness = 0.0.obs;
@@ -172,10 +176,24 @@ class PlPlayerController {
   /// 全屏方向
   Rx<String> get direction => _direction;
 
-  PlPlayerController({
-    // 直播间 传false 关闭控制栏
-    this.controlsEnabled = true,
-    this.fits = const [
+  Rx<int> get playerCount => _playerCount;
+
+  // 添加一个私有构造函数
+  PlPlayerController._() {
+    controlsEnabled = controlsEnabled;
+    // _playerEventSubs = onPlayerStatusChanged.listen((PlayerStatus status) {
+    //   if (status == PlayerStatus.playing) {
+    //     WakelockPlus.enable();
+    //   } else {
+    //     WakelockPlus.disable();
+    //   }
+    // });
+  }
+
+  // 获取实例 传参
+  static PlPlayerController getInstance({
+    bool controlsEnabled = true,
+    List<BoxFit> fits = const [
       BoxFit.contain,
       BoxFit.cover,
       BoxFit.fill,
@@ -184,14 +202,10 @@ class PlPlayerController {
       BoxFit.scaleDown
     ],
   }) {
-    controlsEnabled = controlsEnabled;
-    _playerEventSubs = onPlayerStatusChanged.listen((PlayerStatus status) {
-      if (status == PlayerStatus.playing) {
-        WakelockPlus.enable();
-      } else {
-        WakelockPlus.enable();
-      }
-    });
+    // 如果实例尚未创建，则创建一个新实例
+    _instance ??= PlPlayerController._();
+    _instance!._playerCount.value += 1;
+    return _instance!;
   }
 
   // 初始化资源
@@ -258,6 +272,9 @@ class PlPlayerController {
     double? width,
     double? height,
   ) async {
+    // 每次配置时先移除监听
+    removeListeners();
+
     Player player = _videoPlayerController ??
         Player(
           configuration: const PlayerConfiguration(
@@ -663,6 +680,12 @@ class PlPlayerController {
   }
 
   Future<void> dispose() async {
+    // 每次减1，最后销毁
+    _playerCount.value -= 1;
+    if (playerCount.value > 0) {
+      return;
+    }
+
     _timer?.cancel();
     _timerForVolume?.cancel();
     _timerForGettingVolume?.cancel();
@@ -685,5 +708,6 @@ class PlPlayerController {
     removeListeners();
     await _videoPlayerController?.dispose();
     _videoPlayerController = null;
+    _instance = null;
   }
 }