blocks|key|3939071|text|SF+Symbols是一个仅在iOS+13或更高版本上支持的系统-不可能在iOS+12或更低版本上使用它们。对于那些较旧的操作系统，您需要使用回退。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3939072|请参阅Human+Interface+Guidelines|offset|length|3939073|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.apple.com/design/human-interface-guidelines/sf-symbols/overview/^0|0|3|Q|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

SF Symbols is a system only supported on iOS 13 or later - it's not possible to use them on iOS 12 or below. You'll need to use fallbacks for those older operating systems.

See <a href="https://developer.apple.com/design/human-interface-guidelines/sf-symbols/overview/" rel="nofollow noreferrer">Human Interface Guidelines</a>

blocks|key|3935320|text|您不能在早于iOS+13的iOS版本中原生使用iOS(请参阅苹果的Human+Interface+Guidelines了解SF符号)。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3935321|但是，如果您对使用图形感兴趣，则可以使用SFSymbols+app导出该图标的SVG版本。然后使用一些图形工具将它们转换为PNG图标，您可以将其导入到资产目录中。|3935322|​|3935323|📷|atomic|3935324|3935325|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.apple.com/design/human-interface-guidelines/sf-symbols/overview/|1|https://developer.apple.com/design/downloads/SF-Symbols.dmg|2|IMAGE|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/04e7167f42079fba346d4e5d75cbca52.png|imageAlt^0|X|Q|0|0|K|D|1|0|0|0|1|2|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@$A|12|B|13|1|14]]|C|$]]|$1|D|3|E|5|6|7|15|8|@]|9|@$A|16|B|17|1|18]]|C|$]]|$1|F|3|G|5|6|7|19|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|1A|8|@]|9|@$A|1B|B|1C|1|1D]]|C|$]]|$1|K|3|G|5|6|7|1E|8|@]|9|@]|C|$]]|$1|L|3|-4|5|6|7|1F|8|@]|9|@]|C|$]]]|M|$N|$5|O|P|Q|C|$R|S]]|T|$5|O|P|Q|C|$R|U]]|V|$5|W|P|X|C|$Y|Z|10|-4]]]]

You can not use SFSymbols natively in iOS versions older than iOS 13 (see Apple's <a href="https://developer.apple.com/design/human-interface-guidelines/sf-symbols/overview/" rel="noreferrer">Human Interface Guidelines</a> for SF Symbols).
However, if you are interested in using the graphics you can use the <a href="https://developer.apple.com/design/downloads/SF-Symbols.dmg" rel="noreferrer">SFSymbols app</a> to export SVG versions of the icon. Then use some graphics tool to convert them to PNG icons you can import into your asset catalog.
<a href="https://i.stack.imgur.com/RLMqp.png" rel="noreferrer"><img src="https://i.stack.imgur.com/RLMqp.png" alt="Screenshot how to export SVG from SFSymbols app on Mac." /></a>

blocks|key|3939154|text|您可以将新的ios+13+sf-pro-rounded字体上传到您的项目中。然后在标签中启用该字体。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3939155|打开sf+symbols，点击你想要的cmd%2Bv，进入你的项目，点击一个标签smbol。|3939156|干杯,|3939157|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

You can upload the new ios 13 sf-pro-rounded font to your project. Then enable that font in your label. 

Open sf symbols, click on the smbol you want, cmd+c, go to your project, click on a label cmd+v. Run the project, and there should be the icon

cheers,

blocks|key|3939159|text|此图标集基于SF+Symbols+https://framework7.io/icons/|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3939160|entityMap|0|LINK|mutability|MUTABLE|url|https://framework7.io/icons/^0|H|S|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

This icon set is based on SF Symbols <a href="https://framework7.io/icons/" rel="nofollow noreferrer">https://framework7.io/icons/</a>

blocks|key|3935450|text|在SF+Symbols+3.1中，编辑>复制图像为...您可以选择PNG/点大小/像素比例和粘贴到预览等。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3935451|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

In SF Symbols 3.1, Edit &gt; Copy Image as...
You can choose PNG/point size/pixel scale and paste into Preview etc.

I am updating the icons in my app. After I heard Apple released an icon font named <code>SF Symbols</code> with iOS 13, I was wondering if I can only use them in iOS 13 or if it is possible to use them in lower versions of iOS too.

If I want to use them, do I have to implement a fallback for older versions?

How to use SF Symbols in iOS 12 and below?

我正在更新我的应用程序中的图标。当我听说苹果在iOS 13上发布了一个名为SF Symbols的图标字体后，我想知道我是否只能在iOS 13中使用它们，或者是否可以在iOS的较低版本中使用它们。如果我想使用它们，我是否必须实现对旧版本的回退？

问如何在iOS 12及更低版本中使用SF符号？
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问如何在iOS 12及更低版本中使用SF符号？
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