Mark, It has been a while I looked into this when I researched this stuff for Live Folders chapter in "Pro Android 2" book. I have some source code from the book here at the following URL. See if this helps
http://www.satyakomatineni.com/akc/display?url=DisplayNoteIMPURL&reportId=3014&ownerUserId=satya Satya Komatineni http://www.satyakomatineni.com http://www.androidbook.com On Thu, Aug 19, 2010 at 3:22 AM, Mark Carter <mjc1...@googlemail.com> wrote: > I want to implement Cursor so that it wraps another Cursor (probably > MatrixCursor) and can swap out the wrapped Cursor as necessary. > > I've tried two approaches: > > 1. Subclass CursorWrapper. The problem with this is that any calls to > registerX/unregisterX methods land on the wrapped cursor. Therefore, > instead, the wrapping cursor needs to maintain these observers and how > they are notified. This gets messy. > > 2. Subclass AbstractCursor and override some methods to actually get > the data from another cursor (the MatrixCursor). This is also tricky > because you are trying to juggle two cursors as one. This just feels > *wrong*. > > Any thoughts? > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
