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  • iOS 应用程序的沙盒 Application’s Sandbox

     以下是iOS模拟器下,文件的组织形式,在iOS Device 上的文件组织形式也是这样的。

    iOS 将第三方程序储存在 Applications 文件夹下,各个程序的所有文件都在其 globally unique identifiers (GUIDs) 的文件下,GUID 文件夹即是程序的沙盒。

    Documents: Your application stores its data in Documents, with the exception of NSUserDefaults-based preference settings.


    Library: NSUserDefaults-based preference settings are stored in the Library/Preferences folder.


    tmp: The tmp directory offers a place where your application can store temporary files. Files written into /tmp will not be backed up by iTunes when your iOS device syncs, but your application does need to take responsibility for deleting the files in /tmp once they are no longer needed, to avoid filling up the file system.

    Getting the Documents Directory

    Here’s some code to retrieve the path to the Documents directory:
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
    NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];

    Getting the tmp Directory

    NSString *tempPath = NSTemporaryDirectory();

    注:

    大部分内容摘自《Beginning iPhone 4 Development Exploring the iOS SDK》

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  • 原文地址:https://www.cnblogs.com/alexfan/p/2177825.html
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