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Spinner

ui.widgets.Spinner

短时加载状态的紧凑动画。A compact animation for short waits.

BEHAVIOR CONTRACT

尺寸、颜色和持续帧调度由动画管理器统一驱动。Size, color and frame scheduling are driven by the animation manager.

RECORDED INTERACTION

录像保留动态帧，证明不是静态占位图。Keeps live frames — proof it isn’t a static placeholder.

examples/storybook/stories.zig:638

// ── Spinner ──
pub fn buildSpinner(scope: *ui.Scope, cx: *ui.Cx) anyerror!*ui.Node {
    const a = cx.allocator;
    const r = try row(cx, 20);
    // e2e 墨量断言要框到 spinner 本身：story.<key> 的 rect 还含标题/描述文字，
    // 那些文字的像素会把 spinner 画不出来这件事完全盖住（实测 7600+ dark）。
    r.meta.ownership.meta.test_id = "story.spinner.row";
    try r.appendChild(a, try W.Spinner(.{ .size = 16 }).mount(scope, cx));
    try r.appendChild(a, try W.Spinner(.{ .size = 24 }).mount(scope, cx));
    try r.appendChild(a, try W.Spinner(.{ .size = 36 }).mount(scope, cx));
    return r;
}

在 GitHub 查看源码View source on GitHubexamples/storybook/stories.zig:638

这是 Storybook 中该 story 的原样代码（zenit 5f9add5+wip 2026-09-30）。其中 W 即 ui.widgets，col / row / label 是 Storybook 内的布局小工具。The story's verbatim source from the Storybook (zenit 5f9add5+wip 2026-09-30). W is ui.widgets; col / row / label are small Storybook layout helpers.

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