Anil didn't say "WeakHashMap", he said "HashMap of WeakReferences".
I think the idea is that if you've just placed something in a (shared) HashMap with the value being a WeakReference to the object of interest, then immediately launch an activity to grab that value by id, the value you placed in the map will almost 100% be guaranteed be available by the time the activity's onCreate is called, but not permanently occupying space on the heap. Sure, it's not 100% safe to assume it exists, but a likely bet if the gc uses any kind of LRU mechanism to clean up a weakly referenced object. And, if your data source allows, you can always fail back to a second lookup on the key if the referenced object value doesn't exist at onCreate. Or you can just Bundle/Parcel your object value and stash it in the intent if you don't mind the time and space overhead of that. Doug -- 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