Can someone try to help me please? I really preciate if it happen. I am stuck with the Android documentation. Should I convert all my SQLite methods to use Content Providers? Thanks in advance.
2011/11/5 Júlio Cesar Bueno Cotta <juliocbco...@gmail.com> > Hi people, > I think I need some help here. > I did some search in the group and found this few > topics<https://groups.google.com/forum/#%21searchin/android-developers/startManagingCursor$20deprecated>about > my questions, so sorry if I am being silly. > > First, When should I close my Cursors? I always close them in the onPause > method of an Activity (with the code bellow), and due a HoneyComb issue > before "open" the Cursor I check if it's not null and "opened" to avoid the > error described > here<https://groups.google.com/forum/#%21searchin/android-developers/startManagingCursor$20deprecated/android-developers/BlgTO-yQHX4/whQZ345ITb0J> > : > > protected void onResume () { > if(cursor != null && !cursor.isClosed()){ > stopManagingCursor(cursor); > cursor.close(); > } > cursor = getCursorFromMySQLiteDataBase(); > startManagingCursor(cursor); > > //use cursor to fill a ListView ou Spinner > } > > protected void onPause () { > > if(cursor != null && !cursor.isClosed()){ > stopManagingCursor(cursor); > cursor.close(); > } > } > > } > > Stop the cursor in onPause method seems to be a good thing because, when I > call another Activity from this, the father Activity is paused, right? I > also because when I close the app, onPause is also performed, right again? > > I know the startManagingCursor and StopManagingCursor is deprecated (this > page<http://developer.android.com/reference/android/app/Activity.html#startManagingCursor%28android.database.Cursor%29>says > it): > > "Use the new > CursorLoader<http://developer.android.com/reference/android/content/CursorLoader.html>class > with > LoaderManager<http://developer.android.com/reference/android/app/LoaderManager.html>instead; > this is also available on older platforms through the Android > compatibility package. " > > But CursorLoader and LoaderManager works just with ContentProviders, > right? That I am doing (above code) it's a bad thing? I need to get a away > to change all my databases methods to use only ContentProviders? > > The documentation is not very clear about it. > Here<http://developer.android.com/reference/android/content/ContentProvider.html>say: > > "If you don't need to share data amongst multiple applications you can use > a database directly via > SQLiteDatabase<http://developer.android.com/reference/android/database/sqlite/SQLiteDatabase.html>. > " > > but how to keep managing my Cursors from SQLiteDatabase without use > [start,stop]ManagingCursor (since it's deprecated and probably soon it will > not be there)? > > Well, I made a lot of questions in this topic, I don't want to mess > around, I am just lost in those questions. > > Sorry again if I am being not clear enough about, I tried to, English is > not my first lang. > Thanks in advance. > > -- > 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 -- Júlio Cesar Bueno Cotta Bacharel em Ciência da Computação pela UFV Mestrando em Ciência da Computação pela UFABC -- 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
