How can I make images accessible
Generated on 8/3/2024
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To make images accessible, you can follow several guidelines and use specific APIs and techniques discussed in various WWDC sessions. Here are some key points:
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Use Alt Text for Images:
- When displaying images in HTML, ensure you provide alt text. This is crucial for accessibility as it allows screen readers to describe the image to users who cannot see it. For example, in the session Bring expression to your app with Genmoji, it is mentioned that alt text should be used for fallback images in HTML to ensure semantic meaning is preserved.
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File Entity API:
- For apps that manage files, such as images, you can use the File Entity API to represent your content. This API allows other apps to understand and access your files securely. This is discussed in the session What’s new in App Intents.
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NSAdaptiveImageGlyph:
- When using image glyphs in your app, ensure they carry important semantic meaning and handle fallback behavior properly in unsupported contexts. This is crucial to avoid losing or altering the meaning of the content. This is covered in the session Bring expression to your app with Genmoji.
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Vision Framework:
- Use the Vision framework to process images efficiently. For example, generating thumbnails around the salient parts of an image can help in creating accessible previews. This is discussed in the session Discover Swift enhancements in the Vision framework.
By following these guidelines and utilizing the mentioned APIs, you can make images in your app more accessible to all users.
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