If you're using API Level 8 or greater, use getExternalFilesDir(null) to save a File.
It will be deleted when you upgrade to a newer version. On 7月25日, 上午3時57分, Dianne Hackborn <[email protected]> wrote: > Ergh... that may be a bug. :( To be clear, when doing the update your > internal data is not being erased, but the data on the SD card is? > > On Sat, Jul 24, 2010 at 10:11 AM, Joseph Earl <[email protected]>wrote: > > > > > > > I have an application which resides on the phone memory but downloads > > large data to the SD card on first launch (the app needs to be able to > > work without an internet connection most of the time) > > > When using the recommend directory given in Froyo it seems all files > > on the SD card are deleted when I install a newer version of the .apk. > > I'd preferably like the files removed on uninstall, but not on upgrade > > since the files on the SD card aren't going to change between > > application versions, and forcing the user to re-download a large file > > that is independent of the application version does not seem > > reasonable. > > > At the moment it seems I'm forced to use a different directory to the > > recommended one in order to stop Froyo deleting all the files when the > > application is upgraded. > > > Am I doing something wrong, or is this how it is supposed to work (I'm > > guessing it is)? (Or perhaps I misunderstood what getExternalFilesDir > > is for) > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to [email protected] > > To unsubscribe from this group, send email to > > [email protected]<android-developers%2Bunsubs > > [email protected]> > > For more options, visit this group at > >http://groups.google.com/group/android-developers?hl=en > > -- > Dianne Hackborn > Android framework engineer > [email protected] > > Note: please don't send private questions to me, as I don't have time to > provide private support, and so won't reply to such e-mails. All such > questions should be posted on public forums, where I and others can see and > answer them. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
