fix(home): 优化短剧列表下拉刷新体验

lib/core/widgets/app_pull_to_refresh.dart

@@ -10,7 +10,7 @@ import '../theme/app_colors.dart';
 const double _maxPullDistance = 96;
 const double _refreshThreshold = 56;
 const double _indicatorHeight = 56;
-const double _indicatorMaxOffset = 10;
+const double _indicatorDisplacement = 40;
 const Duration _arrowTurnDuration = Duration(milliseconds: 160);
 const Duration _settleDuration = Duration(milliseconds: 200);
 
@@ -26,7 +26,7 @@ class AppPullToRefresh extends StatefulWidget {
   });
 
   static const AlwaysScrollableScrollPhysics physics =
-      AlwaysScrollableScrollPhysics(parent: ClampingScrollPhysics());
+      AlwaysScrollableScrollPhysics(parent: BouncingScrollPhysics());
 
   final Widget child;
   final Future<void> Function() onRefresh;
@@ -146,10 +146,13 @@ class _AppPullToRefreshState extends State<AppPullToRefresh>
       onNotification: _onScroll,
       child: AnimatedBuilder(
         animation: _offsetController,
-        child: Listener(
-          onPointerUp: (_) => _release(),
-          onPointerCancel: (_) => _release(),
-          child: widget.child,
+        child: ScrollConfiguration(
+          behavior: const _NoScrollbarScrollBehavior(),
+          child: Listener(
+            onPointerUp: (_) => _release(),
+            onPointerCancel: (_) => _release(),
+            child: widget.child,
+          ),
         ),
         builder: (context, child) {
           final offset = _offsetController.value;
@@ -160,7 +163,7 @@ class _AppPullToRefreshState extends State<AppPullToRefresh>
                 key: const Key('pull-refresh-content'),
                 offset: Offset(0, offset),
                 child: IgnorePointer(
-                  ignoring: _refreshing || _retracting,
+                  ignoring: offset > 0 || _refreshing || _retracting,
                   child: child,
                 ),
               ),
@@ -185,7 +188,7 @@ class _AppPullToRefreshState extends State<AppPullToRefresh>
       child: Opacity(
         opacity: progress,
         child: Transform.translate(
-          offset: Offset(0, _indicatorMaxOffset * progress),
+          offset: Offset(0, _indicatorDisplacement * progress),
           child: Align(
             alignment: Alignment.topCenter,
             child: Padding(
@@ -206,7 +209,7 @@ class _AppPullToRefreshState extends State<AppPullToRefresh>
           dimension: 18,
           child: CircularProgressIndicator(
             strokeWidth: 2,
-            color: AppColors.blue,
+            color: AppColors.navSelected,
           ),
         ),
         l10n.refreshingLabel,
@@ -220,7 +223,7 @@ class _AppPullToRefreshState extends State<AppPullToRefresh>
         child: Icon(
           Icons.arrow_downward_rounded,
           size: 18,
-          color: AppColors.blue,
+          color: AppColors.navSelected,
         ),
       ),
       armed ? l10n.releaseToRefresh : l10n.pullToRefresh,
@@ -236,7 +239,7 @@ class _AppPullToRefreshState extends State<AppPullToRefresh>
         Text(
           text,
           style: const TextStyle(
-            color: AppColors.blue,
+            color: AppColors.navSelected,
             fontSize: 13,
             fontWeight: FontWeight.w600,
           ),
@@ -245,3 +248,14 @@ class _AppPullToRefreshState extends State<AppPullToRefresh>
     );
   }
 }
+
+class _NoScrollbarScrollBehavior extends MaterialScrollBehavior {
+  const _NoScrollbarScrollBehavior();
+
+  @override
+  Widget buildScrollbar(
+    BuildContext context,
+    Widget child,
+    ScrollableDetails details,
+  ) => child;
+}