Seems a bit weird to me. For example, if you are maintaining a cursor pool (and so do not know how a given cursor is being used), you need to be careful about which thread you call close() on.
On Apr 9, 7:25 pm, Mark Murphy <[email protected]> wrote: > westmeadboy wrote: > > I'm using a SimpleCursorAdapter with ListView. > > > I just noticed that calling AbstractCursor.close() in a non-UI thread > > will cause this exception: > > > android.view.ViewRoot$CalledFromWrongThreadException: Only the > > original thread that created a view hierarchy can touch its views. > > at android.view.ViewRoot.checkThread(ViewRoot.java:2462) > > at android.view.ViewRoot.requestLayout(ViewRoot.java:512) > > at android.view.View.requestLayout(View.java:7071) > > at android.view.View.requestLayout(View.java:7071) > > at android.view.View.requestLayout(View.java:7071) > > at android.view.View.requestLayout(View.java:7071) > > at android.view.View.requestLayout(View.java:7071) > > at android.widget.AbsListView.requestLayout(AbsListView.java:969) > > at android.widget.AdapterView > > $AdapterDataSetObserver.onInvalidated(AdapterView.java:811) > > at > > android.database.DataSetObservable.notifyInvalidated(DataSetObservable.java > > : > > 43) > > at > > android.widget.BaseAdapter.notifyDataSetInvalidated(BaseAdapter.java: > > 54) > > at android.widget.CursorAdapter > > $MyDataSetObserver.onInvalidated(CursorAdapter.java:391) > > at > > android.database.DataSetObservable.notifyInvalidated(DataSetObservable.java > > : > > 43) > > at > > android.database.AbstractCursor.deactivateInternal(AbstractCursor.java: > > 89) > > at android.database.AbstractCursor.close(AbstractCursor.java:108) > > > Is this a bug or intentional? > > This is intentional. The Cursor is tied to the UI thread once you put it > in a CursorAdapter and attach that CursorAdapter to an AdapterView > (e.g., ListView). > > -- > Mark Murphy (a Commons > Guy)http://commonsware.com|http://twitter.com/commonsguy > > Android Training in NYC: 4-6 June 2010:http://guruloft.com -- 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 To unsubscribe, reply using "remove me" as the subject.
