06 wp7 isolation storage
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This document discusses Windows Phone 7 isolated storage, which allows apps to privately store data on the device. It covers the main isolated storage classes like IsolatedStorageFile and IsolatedStorageSettings that can be used to save and load app data. It also discusses using ApplicationSettings to store app settings in isolated storage like a dictionary, as well as best practices around quota management and multi-threaded access to isolated storage.
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06 wp7 isolation storage
- 1. Windows Phone 7 Li Jingnan / Wang Tao 2011-7-15 1
- 2. 2 days 2
- 3. about anytao| Ethos <ethos:Member id = “Wang Tao” msn = anytao@live.com weibo = http://weibo.com/anytao runat = “Senior System Architect” /> Jason | Ethos <ethos:Member id = “Li Jingnan” msn = zengnami@hotmail.com weibo= http://weibo.com/jn1981 runat = “SE” />
- 5. 06 isolated storage Wang Tao / 2011-07-15
- 6. session outline overview storage overview isolated storage isolatedstorage application settings misc ATFile quota threading
- 7. data storage
- 9. isolated storage classes IsolatedStorageFile represents an isolated storage area containing files and directories IsolatedStorageFileStream exposes a file stream access to a file stored within isolated storage IsolatedStorageSettings Dictionary<Tkey, Tvalue> that stores key-value pairs in isolated storage 9
- 10. isolated storage / save 10
- 11. isolated storage / loading 11
- 12. application setting store settings like appsetting in web use ApplicationSettings object in isolated storage use it as you would use a dictionary then write object to persistent storage 12 When the user exits your application, Windows Phone automatically calls Save to save the IsolatedStorageSettings.
- 13. application setting / add 13
- 14. application setting / loading 14
- 15. application setting / delete 15
- 17. quota management there are no quotas on WP apps must make careful use of space manage app data delete temporary data consider async or archiving data to the cloud to reduce device storage 17
- 18. serialization and threads serialization complex object for saving and loading SettingHelper multi-thread use new threading to perform saving and loading 18
- 19. demo 19 / isolated storage / auth process / ATFile / isolated setting 03 auth context in isolated storage
- 20. practice 20 customized appsetting
- 21. thank you 21 thank youwww.anytao.com
- 22. 22
Editor's Notes
- 独立存储是.NET Framework 2.0引入的一个新特性，为托管代码提供了一种对每个计算机、每个用户、每个应用程序域在本地文件系统中分配一个独有的存储空间的机制。独立存储数据本身还是存储在本地文件系统中的，但是其实际位置对于应用程序是透明的，应用程序只能够访问当前用户在当前应用程序域的文件及文件夹。Silverlight独立存储基于.NET FrameWork独立存储建立，引入Windows Phone 7后又做了少许改进，作为Windows Phone 7中本地数据的基本存储方式。独立存储逻辑结构独立文件存储：独立文件存储提供类似文件系统一样的访问方式，应用程序可以文件形式在其中存储任意数据，如同操作常规文件系统一样创建、删除、访问文件及文件夹。独立设置存储：独立设置存储以键值对方式提供一种快速数据访问方式，主要用于存储一些应用设置信息。在内部，独立设置存储的数据其实也是保存在独立存储空间中的一个本地设置文件中。
- Quota,限额。