fix: issue-372, issue-227, issue-406

2026-09-02 09:32:14 +03:00
parent 10af279d87
commit c6ea1d414d
34 changed files with 1623 additions and 387 deletions
--- a/lib/features/profile/presentation/widgets/expandable_page_view.dart
+++ b/lib/features/profile/presentation/widgets/expandable_page_view.dart
@@ -0,0 +1,115 @@
+import 'package:flutter/material.dart';
+
+class ExpandablePageView extends StatefulWidget {
+  const ExpandablePageView({
+    super.key,
+    required this.itemCount,
+    required this.itemBuilder,
+    this.onPageChanged,
+  });
+
+  final int itemCount;
+  final IndexedWidgetBuilder itemBuilder;
+  final ValueChanged<int>? onPageChanged;
+
+  @override
+  State<ExpandablePageView> createState() => _ExpandablePageViewState();
+}
+
+class _ExpandablePageViewState extends State<ExpandablePageView> {
+  late List<double> _heights;
+  int _currentPage = 0;
+
+  double get _currentHeight {
+    if (_heights.isEmpty) {
+      return 0;
+    }
+    final page = _currentPage.clamp(0, _heights.length - 1);
+    return _heights[page];
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    _heights = List<double>.filled(widget.itemCount, 0, growable: true);
+  }
+
+  @override
+  void didUpdateWidget(covariant ExpandablePageView oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (widget.itemCount != oldWidget.itemCount) {
+      _heights = List<double>.filled(widget.itemCount, 0, growable: true);
+      if (widget.itemCount == 0) {
+        _currentPage = 0;
+      } else {
+        _currentPage = _currentPage.clamp(0, widget.itemCount - 1);
+      }
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return SizedBox(
+      height: _currentHeight,
+      child: PageView.builder(
+        itemCount: widget.itemCount,
+        onPageChanged: (int index) {
+          setState(() {
+            _currentPage = index;
+          });
+          widget.onPageChanged?.call(index);
+        },
+        itemBuilder: (BuildContext context, int index) {
+          return OverflowBox(
+            alignment: Alignment.topCenter,
+            minHeight: 0,
+            maxHeight: double.infinity,
+            child: _SizeReportingWidget(
+              onSizeChange: (Size size) {
+                if (index >= _heights.length ||
+                    _heights[index] == size.height) {
+                  return;
+                }
+                setState(() {
+                  _heights[index] = size.height;
+                });
+              },
+              child: widget.itemBuilder(context, index),
+            ),
+          );
+        },
+      ),
+    );
+  }
+}
+
+class _SizeReportingWidget extends StatefulWidget {
+  const _SizeReportingWidget({required this.child, required this.onSizeChange});
+
+  final Widget child;
+  final ValueChanged<Size> onSizeChange;
+
+  @override
+  State<_SizeReportingWidget> createState() => _SizeReportingWidgetState();
+}
+
+class _SizeReportingWidgetState extends State<_SizeReportingWidget> {
+  Size? _oldSize;
+
+  @override
+  Widget build(BuildContext context) {
+    WidgetsBinding.instance.addPostFrameCallback((_) => _notifySize());
+    return widget.child;
+  }
+
+  void _notifySize() {
+    if (!mounted) {
+      return;
+    }
+    final size = context.size;
+    if (size != null && _oldSize != size) {
+      _oldSize = size;
+      widget.onSizeChange(size);
+    }
+  }
+}