Disclosure Triangle 披露三角 macos

The small rotating control that reveals or hides nested content

那个会旋转的小控件，用来显示或隐藏嵌套内容

also called也叫: disclosure control, outline disclosure button, expand-collapse triangle披露控件、大纲披露按钮、展开／折叠三角
If you called it…如果你管它叫……: “the tiny triangle that opens a folder row”「点开文件夹行的小三角」
“little arrow that rotates when a section expands”「区块展开时会转的小箭头」
“chevron beside a row with children”「带子级的行旁边的 chevron」
“small expand collapse arrow in an outline”「大纲里那个展开／收起的小箭头」
“triangle next to a heading that shows more content”「标题旁边那个显示更多内容的三角」

📄Q3 Report.pages

📄Notes.md

📄installer.dmg

标本可交互 —— 点点看。Specimen is live — try it.

Anatomy — every part, named解剖 —— 每个部件的名字

1 Disclosure indicator披露指示器 NSButton.BezelStyle.disclosure

“The tiny triangle beside the row” is the disclosure indicator.
「行旁边那个小三角」就是披露指示器。

Prompt fragmentPrompt 片段
a native disclosure indicator using NSButton.BezelStyle.disclosure beside the expandable label

可展开标签旁边的原生披露指示器，使用 NSButton.BezelStyle.disclosure
2 Collapsed state折叠状态 DisclosureGroup.isExpanded

“The arrow pointing sideways before it opens” is the collapsed state.
「打开前朝侧面的箭头」就是折叠状态。

Prompt fragmentPrompt 片段
the collapsed DisclosureGroup.isExpanded = false state, with the indicator pointing sideways and children hidden

折叠状态（DisclosureGroup.isExpanded = false）：指示器指向侧面，子级隐藏
3 Expanded state展开状态 DisclosureGroup.isExpanded

“The arrow rotated down after it opens” is the expanded state.
「打开后转向下方的箭头」就是展开状态。

Prompt fragmentPrompt 片段
the expanded DisclosureGroup.isExpanded = true state, with the disclosure indicator pointing down above the revealed children

展开状态（DisclosureGroup.isExpanded = true）：披露指示器指向下方，露出的子级在它下面

Prompt — paste into your agentPrompt —— 直接粘贴给你的代理

Use a native Disclosure Triangle for expandable rows: NSOutlineView for an outline hierarchy or SwiftUI DisclosureGroup for a standalone section. The small indicator must rotate between collapsed and expanded states while the row's children appear directly beneath it.

可展开的行用原生披露三角：大纲层级用 NSOutlineView，独立区块用 SwiftUI DisclosureGroup。小指示器必须在折叠和展开状态之间旋转，同时该行的子级直接出现在它下方。

Debug prompt — when it misbehaves调试 Prompt —— 当它不听话时

Debug my macOS disclosure triangle (NSButton .disclosure bezel, SwiftUI DisclosureGroup). Rule out: the isExpanded binding not actually driving the revealed content; several groups sharing one binding so they all toggle together; the triangle animating the wrong direction because state and rotation are set separately; baseline misalignment between the triangle and its label. The symptom:

调试我的 macOS 披露三角（NSButton .disclosure bezel、SwiftUI DisclosureGroup）。排除以下可能：isExpanded 绑定没有真正驱动显示的内容；多个 DisclosureGroup 共用一个绑定，结果一起开合；状态和旋转分开设置，三角动画方向错了；三角和标签基线没对齐。症状是：

In code代码里叫什么

Framework框架	Symbol符号	Note说明
AppKit	NSOutlineView
SwiftUI	DisclosureGroup
AppKit	NSButton.BezelStyle.disclosure	a standalone disclosure button style一种独立的披露按钮样式

Anatomy — every part, named解剖 —— 每个部件的名字

Prompt — paste into your agentPrompt —— 直接粘贴给你的代理

Debug prompt — when it misbehaves调试 Prompt —— 当它不听话时

In code代码里叫什么

See also相关词条