user-experience - 推荐的最小按钮尺寸

Question

在正常条件下是否有推荐的最小按钮尺寸？

我所说的“推荐”是指一些文件规定的，例如:

• Apple HCI 指南
• Windows 用户体验指南
• 或一些 ISO 标准..

“正常”条件是指:

• 桌面/办公室使用
• 标准 96dpi 显示器分辨率
• 用于指点的鼠标/触摸板(无触摸屏)
• 非残障或视障用户
• 标准“主题”(无大字体/图标)

Answer 1

Microsoft's UX Guide for Windows 7 and Vista建议:

"Make click targets at least 16x16 pixels so that they can be easily clicked by any input device. For touch, the recommended minimum control size is 23x23 pixels (13x13 DLUs)."
    where
"A dialog unit (DLU) is a device-independent metric where one horizontal dialog unit equals one-fourth of the average character width for the current font and one vertical dialog unit equals one-eighth of the character height for the current font. Because characters are roughly twice as high as they are wide, a horizontal DLU is roughly the same size as a vertical DLU, but it's important to realize that DLUs are not a square unit."

您可能还想查找 Fitts' Law ，它计算完成一个 Action 所需的时间作为目标大小的函数。这有助于从数学上确定不同按钮尺寸的权衡。