Toast轻提示
查看源码components/toast.go保存成功#
成功通知带稳定操作与关闭按钮。
snapshot := components.ToastSnapshot{
Title: "Project saved", Description: "Changes are safely written locally.", Type: components.ToastSuccess,
}
if open {
components.PaintToast(canvas, theme, viewport, snapshot, components.ToastOptions{
Layer: 52, Scope: tree.ID(page, "toast"),
DismissID: tree.ID(page, "dismiss"), ActionID: tree.ID(page, "action"),
ActionLabel: "View",
})
if canvas.Clicked(tree.ID(page, "dismiss")) { open = false }
}语义类型#
通过点击操作在信息、警告和错误样式间切换。
types := [...]components.ToastType{
components.ToastInfo, components.ToastWarning, components.ToastError,
}
titles := [...]string{"Update available", "Low disk space", "Build failed"}
snapshot := components.ToastSnapshot{
Title: titles[selected], Description: "Activate the action button to see the next semantic type.",
Type: types[selected],
}
components.PaintToast(canvas, theme, viewport, snapshot, components.ToastOptions{
Layer: 52, Scope: tree.ID(page, "toast"), DismissID: tree.ID(page, "dismiss"),
ActionID: tree.ID(page, "action"), ActionLabel: "Switch",
})
if canvas.Clicked(tree.ID(page, "action")) { selected = (selected + 1) % len(types) }手势快照#
仅展示调用方提供的横向位移;组件不解释手势。
snapshot := components.ToastSnapshot{
Title: "Download almost complete", Description: "The horizontal offset comes from the caller's snapshot.",
Type: components.ToastInfo, SwipeX: -8,
}
components.PaintToast(canvas, theme, viewport, snapshot, components.ToastOptions{
Layer: 52, Scope: tree.ID(page, "toast"), DismissID: tree.ID(page, "dismiss"),
ActionID: tree.ID(page, "action"), ActionLabel: "Continue",
})安装
将组件源码复制到自己的项目,直接修改。
go run ./cmd/viva add --out ./components/local toast源码组件用法#
此预览直接调用生产 Go 组件。稳定 ID、值与打开状态仍由应用持有;组件只负责绘制并声明交互语义。
- 标题旁的源码链接列出了全部选项与视觉决策。
- 请使用原生命令验证系统文本、焦点、无障碍与平台集成。
- 浏览器预览验证共享布局和场景行为,不代表原生性能。
验证边界#
示例覆盖当前 API 的代表性状态,但不表示每个桌面后端都已完成真机验证。
键盘操作
Tab 在控件间移动;Ctrl/⌘ K 搜索组件。进入预览后,键盘事件由 Go 运行时处理。