feat(mobile-next): 导入官方 openim-flutter-demo 固定基线 3.8.3-patch.3 并完成双构建

- 上游: github.com/OpenIMSDK/openim-flutter-demo tag 3.8.3-patch.3 commit b3dfdb1e8aaeaaf6f0793e10cadd20d5c184a31f - 并行目录 mobile-next/ 原样导入（含 LICENSE），不覆盖现网 mobile/ - 锁定 Flutter 3.24.5 / Dart 3.5.4 / JDK 17 / Gradle 7.6.3 / AGP 7.3.1 - 实测 Android debug 与 release 构建均成功（见 docs/mobile-next-baseline-import.md） - 本提交可单独回退：git revert 1db1229（重写前） Co-authored-by: multica-agent <github@multica.ai>
2026-08-19 10:45:55 +08:00
parent fa8584a73f
commit 754f161a3f
767 changed files with 57658 additions and 0 deletions
@@ -0,0 +1,137 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:openim_common/openim_common.dart';
+
+class BottomBar extends StatelessWidget {
+  const BottomBar({
+    Key? key,
+    this.index = 0,
+    required this.items,
+  }) : super(key: key);
+  final int index;
+  final List<BottomBarItem> items;
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      height: 56.h,
+      decoration: BoxDecoration(
+        color: Styles.c_FFFFFF,
+        border: BorderDirectional(
+          top: BorderSide(
+            color: Styles.c_E8EAEF,
+            width: 1,
+          ),
+        ),
+      ),
+      child: Row(
+        children: List.generate(
+            items.length,
+            (index) => _buildItemView(
+                  i: index,
+                  item: items.elementAt(index),
+                )).toList(),
+      ),
+    );
+  }
+
+  Widget _buildItemView({required int i, required BottomBarItem item}) => Expanded(
+        child: GestureDetector(
+          onDoubleTap: () => item.onDoubleClick?.call(i),
+          onTapDown: (_) => item.onClick?.call(i),
+          child: Container(
+            color: Styles.c_FFFFFF,
+            child: Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                Stack(
+                  alignment: Alignment.center,
+                  children: [
+                    (i == index ? item.selectedImgRes.toImage : item.unselectedImgRes.toImage)
+                      ..width = item.imgWidth
+                      ..height = item.imgHeight,
+                    Positioned(
+                      top: 0,
+                      right: 0,
+                      child: Transform.translate(
+                        offset: const Offset(2, -2),
+                        child: UnreadCountView(count: item.count ?? 0),
+                      ),
+                    ),
+                  ],
+                ),
+                4.verticalSpace,
+                item.label.toText
+                  ..style = i == index
+                      ? (item.selectedStyle ?? Styles.ts_0089FF_10sp_semibold)
+                      : (item.unselectedStyle ?? Styles.ts_8E9AB0_10sp_semibold),
+              ],
+            ),
+          ),
+        ),
+        /*child: InkWell(
+          onTap: () {
+            if (item.onClick != null) item.onClick!(i);
+          },
+          onDoubleTap: () => item.onDoubleClick?.call(i),
+
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              Stack(
+                alignment: Alignment.center,
+                children: [
+                  (i == index
+                      ? item.selectedImgRes.toImage
+                      : item.unselectedImgRes.toImage)
+                    ..width = item.imgWidth
+                    ..height = item.imgHeight,
+                  Positioned(
+                    top: 0,
+                    right: 0,
+                    child: Transform.translate(
+                      offset: const Offset(2, -2),
+                      child: UnreadCountView(count: item.count ?? 0),
+                    ),
+                  ),
+                ],
+              ),
+              4.verticalSpace,
+              item.label.toText
+                ..style = i == index
+                    ? (item.selectedStyle ?? Styles.ts_0089FF_10sp_semibold)
+                    : (item.unselectedStyle ?? Styles.ts_8E9AB0_10sp_semibold),
+            ],
+          ),
+        ),*/
+      );
+}
+
+class BottomBarItem {
+  final String selectedImgRes;
+  final String unselectedImgRes;
+  final String label;
+  final TextStyle? selectedStyle;
+  final TextStyle? unselectedStyle;
+  final double imgWidth;
+  final double imgHeight;
+  final Function(int index)? onClick;
+  final Function(int index)? onDoubleClick;
+  final Stream<int>? steam;
+  final int? count;
+
+  BottomBarItem(
+      {required this.selectedImgRes,
+      required this.unselectedImgRes,
+      required this.label,
+      this.selectedStyle,
+      this.unselectedStyle,
+      required this.imgWidth,
+      required this.imgHeight,
+      this.onClick,
+      this.onDoubleClick,
+      this.steam,
+      this.count});
+}