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fix(TSlider): 修复滑块端点对齐与受限尺寸交互 - #1212
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RSS1102 merged 10 commits intoOct 27, 2026
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- 胶囊坐标轨道收进 thumb 行程并关闭 Material 二次内缩，连续与离散取值共用同一映射，消除两端「数值在变、thumb 不动」的死区 - thumb 与胶囊四周留白一致，等于轨道高度与 thumb 直径差值的一半 - 示例页垂直滑块的数值与刻度改用真实 thumb 行程定位，不再与 thumb 错位 - TSliderVariant 说明改为中文表述
- 示例 Widget 不再自绘标题，改由 ExampleItem.desc 提供，与「组件类型」区块结构一致 - 保留 surface 卡片与原有 contentSpacing 配置 - demo 测试的 surface 定位改用滑块 key，并断言标题位于示例内容上方
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🤔 这个 PR 的性质是？
🔗 相关 Issue
#755
原问题截图：
💡 需求背景和解决方案
问题与修复
运行截图（Flutter 3.32.0 Linux，经过精确 Golden 比较）
端点矩阵：覆盖水平、垂直，普通、胶囊及 0/100 两端。
边界矩阵：覆盖窄尺寸、RTL 和大厚度主题。
本地验证
📝 更新日志
fix(TSlider): 修复滑块端点、数值和刻度的位置不对齐。
fix(TSlider): 修复受限尺寸及布局变化时滑块拖动异常。
本条 PR 不需要纳入 Changelog
☑️ 请求合并前的自查清单
type(<scope>?): 修改描述。示例：
fix(TBottomTabBar): 修复 iconText 模式底部溢出Slider Spec