我创建了一个应用程序。 这是另一个应用程序的更新。 在启动第二个应用程序时, 我必须使用第一个应用程序的数据 。 我如何才能完成这个程序? 我的数据库文件与同名 。
iPhone 应用程序是沙箱式的。您无法访问其他任何应用程序文档文件夹。 即使是您自己的也不行。 您可以在应用程序之间共享键链, 或者您可以通过参数或文档打开其他应用程序。 有关这一点, 您可以打开其它应用程序 。
In addition to the aforementioned keychain sharing: How to share keychain data between iOS applications , if you involved a server, you could use the server as a mediator to exchange information between the two sandboxes.
It is also possible to have one application send another file to another application (although this results in a copy from one sandbox to the other) via registered mime types: How do I associate file types with an iPhone application?
You can also share information via URL handlers. http://mobileorchard.com/apple-approved-iphone-inter-process-communication/
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