Why you don't create an external adapter, saying that I mean, an adapter not created/instantiated as an inner adapter of your activity?
On Jan 13, 1:55 am, galapogos <[email protected]> wrote: > Thanks. How would I use this model for ArrayAdapters across several > activities? > > Currently, I define my ArrayAdapter class in 1 .java file, declare/ > initialize it in my main activity's onCreate() method, generate the > list that binds to the adapter in a background thread in my main > activity (this takes up to half a minute), and starts a Runnable in > the UI thread to call notifyDataSetchanged() to update the adapter > once the list generation has completed. > > Meanwhile, the other activities run their own background threads that > wait for the main activity's background thread to notify them of list > generation completion, then in the UI thread filters the adapter to > get specific subsets of the full list and displays them in their > activities. > > I've some problems with this approach: > > 1. It seems too complicated - I'm creating 1 thread for each activity, > which then starts a Runnable in the UI thread to access the adapter > (accessing the adapter from the background threads lead to runtime > errors). > 2. I get occasional force closes with the following error message in > logcat: "The content of the adapter has changed but ListView did not > receive a notification. Make sure the content of your adapter is not > modified from a background thread, but only from the UI thread." > > On Jan 12, 10:55 am, Kristopher Micinski <[email protected]> > wrote: > > > > > > > > > On Wed, Jan 11, 2012 at 9:46 PM,galapogos<[email protected]> wrote: > > > Hi, > > > > I'm not aware of the singleton model. Are there any guides for it? > > > > Thanks. > > > the "singleton model" refers to a so called "design pattern" ..., You > > can google it to find good examples: > > >http://en.wikipedia.org/wiki/Singleton_pattern -- 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
