what is it with this links did you know at the moment im at school! lol On Mon, Nov 15, 2010 at 3:10 PM, Thierry Legras <[email protected]> wrote:
> Hi, > > I found something that highlights Kostya solution including a trick to > avoir header to appear selected: > > http://thebogles.com/blog/2010/02/section-headers-for-android-listviews/ > > This seems straightforward to follow ... except that i can't get previous > record. Unfortunately the isHeaderVisible(Cursor) method is not given :( > I tried to use Cursor.moveToPrevious(), but that crashes on subsequent > setViewValue call. I guessed I should not modify cursor within > setViewValue() and try to restore cursor position before leaving the method, > but that still crashes. > Any clue? > > Thierry. > > 2010/11/15 Neilz <[email protected]> > >> Hi Mark. >> >> I've taken a look at this, and put together a quick sample based on >> your demo. >> >> It seems to me that you must have your list content already separated >> before adding them to the ListView. So, you add one Array, then you >> add a different View, then you add another Array. >> >> I can probably find a way to sort my data in this way, although I was >> hoping to add the view on the fly. My data is currently returned as >> one long List, and I don't know in advance where these separator views >> are going to go. I need to study the contents of my data as it's added >> to the View, and say "Ah, here's some condition, add a separator view >> here". Does that make sense, and can this be done? >> >> Thanks. >> >> On Nov 11, 12:26 pm, Mark Murphy <[email protected]> wrote: >> > On Thu, Nov 11, 2010 at 7:20 AM,Neilz<[email protected]> wrote: >> > > Hi all. I have created a ListView from a collection of objects, using >> > > an ArrayAdaptor to set the items. >> > >> > > The objects used to populate the list have a NAME field, and are >> > > sorted into alphabetical order, so ultimately the ListView is long >> > > list of names. >> > >> > > I now want to make the list more user friendly. I'd like to add a >> > > separator for each letter of the alphabet, saying "A", "B" etc. The >> > > separator could be one of the list items (non-clickable) or just a >> > > normal View. >> > >> > > I'm just not sure how I can manipulate the ListView to achieve this, >> > > and would appreciate any help. >> > >> > It's not a question of the ListView, but of the ListAdapter. Your >> > ListAdapter needs to: >> > >> > -- Override getViewTypeCount() to return 2 >> > -- Override getItemViewType() to return 0 for regular rows and 1 for >> headings >> > -- Override getView() (or newView() and bindView() for CursorAdapter) >> > and have it properly create the right rows and bind them >> > >> > This is somewhat of a pain. >> > >> > I have a MergeAdapter that can simplify it, but only where each >> > section is its own adapter, with plain Views being interspersed: >> > >> > https://github.com/commonsguy/cwac-merge >> > >> > Creating a HeaderCursorAdapter that injects headings based on some >> > rule (e.g., when the first letter of such-and-so column in the Cursor >> > changes) is on my list of 18,000 things to do. Though anyone is >> > welcome to go and beat me to writing it. :-) >> > >> > -- >> > Mark Murphy (a Commons Guy)http://commonsware.com| >> http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy<http://github.com/commonsguyhttp://commonsware.com/blog%7Chttp://twitter.com/commonsguy> >> > >> > Android App Developer Books:http://commonsware.com/books >> >> -- >> 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]<android-developers%[email protected]> >> For more options, visit this group at >> http://groups.google.com/group/android-developers?hl=en >> > > > > -- > Thierry. > > -- > 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]<android-developers%[email protected]> > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- 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
