well, with an awnser like that any disucssion group is useless. Maybe there is someone out there who has a hint?
-----Ursprüngliche Nachricht----- Von: "Kumar Bibek" Gesendet: 22.10.2010 22:42:11 An: "Android Developers" Betreff: [android-developers] Re: Querying Content Providers >Well, you should be able to find all your answers in the >documentation. If you don't find it there, then you can only rely on >whatever eclipse prompts you to use. > >On Oct 21, 5:28 pm, andyandroid wrote: >> Hi, >> >> I want to query a content provider, e.g. contacts. (API 2.x). I create >> a cursor like this >> >> Cursor cursor = >> getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, >> null, null, null, null); >> >> Now I have an internal table represented by this cursor and I can >> browse through this table with the aid of that cursor. In order to >> know what data I have I need to know the columns of my table, I assume >> in my case these >> >> http://developer.android.com/reference/android/provider/ContactsContr... >> >> are the columns I have available and I can pick from. So lets try this >> >> while(cursor.moveToNext()) >> { >> String data = >> cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.XXXXXXXX)); >> Log.e("myTag", data); >> >> } >> cursor.close(); >> >> I would assume that where I have typed XXXXXXXX that I can enter any >> column from the link above, so for example >> >> String data = >> cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME_PRIMARY)); >> >> Eclipse auto complete does not offer me a DISPLAY_NAME_PRIMARY but a >> DISPLAY_NAME. Using DISPLAY_NAME seems to work. So the question is, am >> I just lucky to get the data and in fact I haven't understood >> something? Or is that a plain bug in the documentation? >> >> The biggest problem is that it seems to be worse for other providers, >> e.g.http://developer.android.com/reference/android/provider/ContactsContr... >> , this >> >> Cursor groupC = >> getContentResolver().query(ContactsContract.Groups.CONTENT_URI, null, >> null, null, null); >> while(groupC.moveToNext()) >> { >> String group = >> groupC.getString(cursor.getColumnIndex(ContactsContract.Groups._ID)); >> Log.e("myTag", group); // >> } >> groupC.close(); >> >> works fine. It prints number 1....6 hence I assume I have 6 entries in >> my table (though I only have 5 contacts groups in my contact >> application). But this: >> >> Cursor groupC = >> getContentResolver().query(ContactsContract.Groups.CONTENT_URI, null, >> null, null, null); >> while(groupC.moveToNext()) >> { >> String group = >> groupC.getString(cursor.getColumnIndex(ContactsContract.Groups.TITLE)); >> Log.e("myTag", group); // >> } >> groupC.close(); >> >> Leads to a crash "Caused by: java.lang.IllegalStateException: get >> field slot from row 0 col -1 failed". >> >> Anyone who can shed some light on this problem? >> >> Thanks. >> A. > >-- >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 ___________________________________________________________ GRATIS! Movie-FLAT mit über 300 Videos. Jetzt freischalten unter http://movieflat.web.de -- 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
