iphone - 为 iOS 应用创建您自己的 UTI

Question

我正在开发的应用程序的文件有一个自定义文件格式，我希望能够使用 iOS 的“打开方式...”功能，该功能可以让用户例如通过电子邮件互相发送文件，然后直接在应用程序中打开它。

我已经在 Info.plist 文件中添加了 CFBundleDocumentType 内容，但问题是 LSItemContentTypes。 From what I've read ，我需要提供实际的文件作为一个 UTI，而不仅仅是说“.myfileextension”，而且我找不到很多关于如何在 iOS 应用程序中创建 UTI 的信息。

有人知道吗？

Answer 1

您将需要阅读 Apple 提供的以下主题:

Adopting Uniform Type Identifiers
Introduction to Uniform Type Identifiers Overview
Declaring New Uniform Type Identifiers

From the documentation:

If your application uses proprietary data formats, you should declare them in the Info.plist file of your application bundle. Some guidelines:

• Your UTI string must be unique. Following the reverse-DNS format beginning with com.companyName is a simple way to ensure uniqueness. While the system can support different UTI strings with the same specification, the reverse is not true.

• If your code relies on third-party UTI types that may not be present on the system, you should declare those UTIs as imported types in your bundle.

• Be sure to add conformance information if your proprietary type is a subtype of one or more existing types. In most cases you should not specify conformance to a nonpublic type, unless you are also declaring that type in your bundle. For a list of public and Apple-defined UTIs, see "System-Declared Uniform Type Identifiers"