Saving a file to a specific location on WP8 device

问题:

I am new to Windows Phone 8 development. Would like to know if there is a way to store a file received to a particular location on device. It could be using an API, through ActiveSync or MDM.

Thanks in advance.

回答1:

Windows Phone 8 doesn't allow for free-for-all direct access to the user's hard-drive to read or write files. You'll have to use usecase specific APIs depending on the type of media you're trying to store. I've answered a similar question in the past regarding WP8's read-write access for known file types @ Windows Phone 8: Media file access

A few highlights:

1. Your app can use IsoStore to read & write files only accessable to your app. See IsolatedStorageFile API or ApplicationData.Current.LocalFolder API for that.

2. You can store pictures using MediaLibrary.SavePicture or MediaLibrary.SavePictureToCameraRoll methods.

3. You can store songs using MediaLibraty.SaveSong method.

4. Other then those APIs I'm not familiar with any other file write APIs to the OS from the top of my head. You can probably use a remote server, but that's pretty much it.