ios - 自定义 NSURLProtocol 子类对后台 session 不可用

来自 NSURLSession.h...

/* An optional array of Class objects which subclass NSURLProtocol.
   The Class will be sent +canInitWithRequest: when determining if
   an instance of the class can be used for a given URL scheme.
   You should not use +[NSURLProtocol registerClass:], as that
   method will register your class with the default session rather
   than with an instance of NSURLSession. 
   Custom NSURLProtocol subclasses are not available to background
   sessions.
 */
@property (nullable, copy) NSArray<Class> *protocolClasses;

Custom NSURLProtocol subclasses are not available to background sessions.

将自定义 NSURLProtocol 子类限制为仅在前台 session 中触发有什么好处？

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Best Answer-推荐答案

来自 Apple 文档:

Background sessions are similar to default sessions, except that a separate process handles all data transfers.

Apple 根本不提供将您的 NSURLProtocol 子类注入(inject)到另一个由 iOS 本身管理的进程的方法。

同样的限制适用于 WKWebView。

关于ios - 自定义 NSURLProtocol 子类对后台 session 不可用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/34865414/