When activated, unlocks the object.ĭenotes that an object is unlocked. Note that the system doesn’t provide a standard Cover Flow view.ĭisplays content in an icon-based layout.ĭenotes that an object is locked. Image (Catalina and earlier)ĭisplays a menu that contains app-wide or contextual commands.ĭisplays content in a column-based layout.ĭisplays content in a Cover Flow layout. Control GlyphsĬontrol glyphs are especially well suited for use in toolbars and sidebars. Designing a custom symbol or image lets you communicate unique details that help people use your app repurposing a system-defined image can cause confusion. For guidance, see Accessibility > Copy and Images.ĭesign a custom symbol or image if you can’t find a system-defined one that meets your needs. Alternative text labels - or accessibility descriptions - aren’t visible, but they let VoiceOver audibly describe what’s onscreen, making navigation easier for people with visual disabilities. Supply alternative text labels for all meaningful images. Although the “left-facing triangle” image looks the same as the “go left” image, using it in a navigation control might be confusing if the appearance of the triangle changes in the future. For example, in a control that lets people navigate to the left, it makes sense to use the “go left” image. When you choose an image for its meaning, your app can remain visually consistent with the system even if the appearance of the image changes. Use each system-defined image according to its meaning - not its appearance. In some cases, a symbol might not have the same size or alignment as the image it replaces, so it’s important to check your layout. IMPORTANT By default, the system APIs return SF symbols configured as 13 pt, large scale, and medium weight.
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