支持国际化,修改国际化两个单词和两个汉字时，字体大小不一致 - #55
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- 添加国际化设计文档 - 实现选择器国际化支持 - 添加 SafeArea 安全区设置
- address_picker_route.dart: 将 _init() 移到 didChangeDependencies() 中 - date_picker_route.dart: 将 Suffix.fromContext 和 _init() 移到 didChangeDependencies() 中 - 添加 _isInitialized 标志防止重复初始化
- 所有 picker 的 itemBuilder 中添加 Semantics widget 包裹 - locations_data.dart: getTowns 返回有意义的占位文本而非空字符串 - 避免 'value' 和 'increasedValue' 不匹配导致的 SemanticsNode assertion error
SinglePickerRoute 创建 AnimationController 使用 OverlayState 作为 TickerProvider， 但缺少 dispose 方法来清理它。当 Overlay 被销毁时，Ticker 仍活跃导致泄漏。 添加 dispose 方法确保 AnimationController 正确释放。 Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
- 将级联选择、日期选择、路由弹窗、样式解析等共享逻辑抽取到 lib/src/ - 大幅简化各 Route 文件（AddressPickerRoute, DatePickerRoute, SinglePickerRoute 等） - 新增 8 个单元测试覆盖核心逻辑 - 新增项目文档（docs/agents/）与代码规范配置 - 删除旧的 flutter_picker_test.dart
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修复内容
问题描述：
在 initState() 中调用 AppLocalizations.of(context) 等 inherited widget 依赖方法，触发 Flutter assertion error：
dependOnInheritedWidgetOfExactType was called before _PickerState.initState() completed
影响范围：
修复方案：
修改文件：
问题描述：
CupertinoPicker 在处理空文本或未标注语义信息时，触发 SemanticsNode assertion error：
A SemanticsNode with action "increase" needs to be annotated with either both "value" and "increasedValue" or neither
影响范围：
修复方案：
修改文件：
3、选择器国际化支持 & SafeArea 安全区设置