fix(player): 观看全集复用抓帧首屏

lib/pages/player/player_frame_capture.dart

@@ -0,0 +1,63 @@
+// Author: fruit.com.cn
+
+import 'dart:ui' as ui;
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart';
+
+class PlayerFrameCapture {
+  const PlayerFrameCapture._();
+
+  static const int budgetMilliseconds = 32;
+
+  static Future<Uint8List?> capture({
+    required BuildContext context,
+    required GlobalKey boundaryKey,
+    required String source,
+  }) async {
+    final boundary = boundaryKey.currentContext?.findRenderObject();
+    if (boundary is! RenderRepaintBoundary) {
+      _log('[player-entry] phase=frame-capture-unavailable source=$source');
+      return null;
+    }
+    final stopwatch = Stopwatch()..start();
+    try {
+      final pixelRatio = MediaQuery.devicePixelRatioOf(
+        context,
+      ).clamp(1.0, 2.0).toDouble();
+      final image = await boundary.toImage(pixelRatio: pixelRatio);
+      final data = await image.toByteData(format: ui.ImageByteFormat.png);
+      image.dispose();
+      if (stopwatch.elapsedMilliseconds > budgetMilliseconds) {
+        _log(
+          '[player-entry] phase=frame-capture-over-budget source=$source '
+          'ms=${stopwatch.elapsedMilliseconds} budget_ms=$budgetMilliseconds',
+        );
+      }
+      if (data == null) {
+        _log('[player-entry] phase=frame-capture-empty source=$source');
+        return null;
+      }
+      final bytes = data.buffer.asUint8List(
+        data.offsetInBytes,
+        data.lengthInBytes,
+      );
+      _log(
+        '[player-entry] phase=frame-captured source=$source '
+        'bytes=${bytes.length} ms=${stopwatch.elapsedMilliseconds}',
+      );
+      return bytes;
+    } catch (error) {
+      _log(
+        '[player-entry] phase=frame-capture-failed source=$source '
+        'error=$error',
+      );
+      return null;
+    }
+  }
+
+  static void _log(String message) {
+    if (kDebugMode) debugPrint(message);
+  }
+}

lib/pages/player/player_logic.dart

@@ -32,6 +32,7 @@ import '../discover/search_page.dart';
 import '../drama_detail/drama_detail_view.dart';
 import '../mine/mine_types.dart';
 import '../mine/mine_view.dart';
+import 'player_frame_capture.dart';
 import 'player_view.dart';
 import 'widgets/drama_comments_sheet.dart';
 import 'widgets/episode_picker_sheet.dart';
@@ -64,6 +65,9 @@ class PlayerLogic extends ChangeNotifier {
   final Future<void> Function() _waitForFrame;
 
   late PageController pages;
+  final GlobalKey renderBoundaryKey = GlobalKey(
+    debugLabel: 'player-render-boundary',
+  );
   late PlaybackQueue queue;
   late List<int> visibleIndices;
   late PlaybackSession session;
@@ -1226,6 +1230,12 @@ class PlayerLogic extends ChangeNotifier {
     Drama drama,
     int index,
   ) async {
+    final initialFrameBytes = await PlayerFrameCapture.capture(
+      context: context,
+      boundaryKey: renderBoundaryKey,
+      source: 'watch-all',
+    );
+    if (!context.mounted) return;
     await pauseForFullPlayer();
     if (!context.mounted) return;
     await Navigator.of(context).push(
@@ -1235,6 +1245,8 @@ class PlayerLogic extends ChangeNotifier {
           initialIndex: index,
           wallet: wallet,
           downloads: downloads,
+          revealAfterFirstFrame: initialFrameBytes != null,
+          initialFrameBytes: initialFrameBytes,
         ),
       ),
     );

lib/pages/player/player_view.dart

@@ -1,11 +1,9 @@
 // Author: fruit.com.cn
 
 import 'dart:async';
-import 'dart:ui' as ui;
 
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:flutter/services.dart';
 import 'package:provider/provider.dart';
 
@@ -34,6 +32,7 @@ import '../../l10n/app_localizations.dart';
 import '../home/home_feed_channel.dart';
 import 'comments_auth.dart';
 import 'player_binding.dart';
+import 'player_frame_capture.dart';
 import 'player_logic.dart';
 import 'widgets/home_feed_header.dart';
 import 'widgets/home_feed_overlay.dart';
@@ -146,7 +145,6 @@ class _PlayerPageState extends State<PlayerPage>
   bool _swipePrewarmCaptured = false;
   bool _presentationActive = false;
   late bool _firstFrameReady;
-  final GlobalKey _renderBoundaryKey = GlobalKey();
   bool _leavingHandoff = false;
   bool _preparingFullPlayer = false;
   final Set<String> _precachedPosterUrls = {};
@@ -159,6 +157,14 @@ class _PlayerPageState extends State<PlayerPage>
   void initState() {
     super.initState();
     _firstFrameReady = !widget.revealAfterFirstFrame;
+    if (kDebugMode &&
+        widget.revealAfterFirstFrame &&
+        widget.initialFrameBytes != null) {
+      debugPrint(
+        '[player-entry] phase=initial-frame-shown '
+        'bytes=${widget.initialFrameBytes!.length}',
+      );
+    }
     final handoff = widget.handoff;
     logic = PlayerBinding().create(
       history: context.read<WatchHistoryRepository>(),
@@ -605,7 +611,7 @@ class _PlayerPageState extends State<PlayerPage>
           fit: StackFit.expand,
           children: [
             RepaintBoundary(
-              key: _renderBoundaryKey,
+              key: logic.renderBoundaryKey,
               child: PlayerRenderStack(
                 pageController: _pageController,
                 slots: _renderSlots(indices),
@@ -1239,7 +1245,11 @@ class _PlayerPageState extends State<PlayerPage>
       seriesEpisodes.insert(0, sourceEpisode);
       episodeIndex = 0;
     }
-    final initialFrameBytes = await _captureCurrentFrame();
+    final initialFrameBytes = await PlayerFrameCapture.capture(
+      context: context,
+      boundaryKey: logic.renderBoundaryKey,
+      source: 'full-player',
+    );
     if (!mounted || !context.mounted) return;
     final sourceUserWantsPlay = logic.session.userWantsPlay;
     try {
@@ -1279,37 +1289,6 @@ class _PlayerPageState extends State<PlayerPage>
     _logFullPlayerRoute('restored');
   }
 
-  Future<Uint8List?> _captureCurrentFrame() async {
-    final boundary = _renderBoundaryKey.currentContext?.findRenderObject();
-    if (boundary is! RenderRepaintBoundary) return null;
-    final startedAt = DateTime.now();
-    try {
-      final pixelRatio = MediaQuery.devicePixelRatioOf(
-        context,
-      ).clamp(1.0, 2.0).toDouble();
-      final image = await boundary.toImage(pixelRatio: pixelRatio);
-      final data = await image.toByteData(format: ui.ImageByteFormat.png);
-      image.dispose();
-      Uint8List? bytes;
-      if (data != null) {
-        bytes = data.buffer.asUint8List(data.offsetInBytes, data.lengthInBytes);
-      }
-      if (kDebugMode) {
-        debugPrint(
-          '[player-entry] phase=frame-captured '
-          'bytes=${bytes?.length ?? 0} '
-          'ms=${DateTime.now().difference(startedAt).inMilliseconds}',
-        );
-      }
-      return bytes;
-    } catch (error) {
-      if (kDebugMode) {
-        debugPrint('[player-entry] phase=frame-capture-failed error=$error');
-      }
-      return null;
-    }
-  }
-
   Future<void> _leaveHandoff(BuildContext context) async {
     if (_leavingHandoff) return;
     setState(() => _leavingHandoff = true);