Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder1.enfer-du-nord.net!news.musoftware.de!wum.musoftware.de!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: Dirk Bruere at NeoPax <dirk.bruere@gmail.com>
Newsgroups: comp.lang.java.programmer
Subject: Re: Initializing from context passing
Date: Sat, 23 Apr 2011 19:12:38 +0100
Organization: Dirk Bruere at Neopax
Lines: 56
Message-ID: <91gj4cF34fU1@mid.individual.net>
References: <91ga4tF38vU1@mid.individual.net> <iouv3r$5ls$1@dont-email.me>
Reply-To: dirk.bruere@gmail.com
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-Trace: individual.net 2Z/NzYkBea/yvg+Mi3xtcQetRMGkRiC4qNdHma8SYpiGZ3Ib+I
Cancel-Lock: sha1:OE0I3VGOoJoKsL1jxMpgbiX9Sf4=
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.15) Gecko/20110303 Thunderbird/3.1.9
In-Reply-To: <iouv3r$5ls$1@dont-email.me>
Xref: x330-a1.tempe.blueboxinc.net comp.lang.java.programmer:3219

On 23/04/2011 17:35, Daniele Futtorovic wrote:
> On 23/04/2011 17:39, Dirk Bruere at NeoPax allegedly wrote:
>> I have a Data class of the form:
>>
>> Data
>> (
>> public static ListView albumsLV;
>> public static ArrayAdapter<String> albumsTitleAdapter
>> public static ArrayList<String> albumsTitleArrayList = new
>> ArrayList<String>();
>>
>> Data(Context ctx)
>> {
>> albumsLV = (ListView )((Activity) ctx).findViewById(R.id.ListViewAlbums);
>>
>> albumsTitleAdapter = new ArrayAdapter<String>(ctx,
>> android.R.layout.simple_expandable_list_item_1,albumsTitleArrayList);
>> }
>>
>> }
>>
>> and in the main method{
>>
>> public void onCreate(Bundle savedInstanceState)
>> {
>> super.onCreate(savedInstanceState);
>> setContentView(R.layout.main);
>> Context currentContext = this;
>>
>> Data data = new Data(currentContext);
>>
>> }
>>
>> lvAlbum = (ListView)findViewById(R.id.ListViewAlbums);
>> lvAlbum.setAdapter(Data.albumsTitleAdapter);
>> }
>>
>> I never use Data data variable again.
>> Is that sufficient to initialize the static parameters in Data class?
>>
>
> Yeah, but it's crap. At least make it a static method e.g.
> Data.init(Context).

So do not do it in the constructor?

> And do use interface types rather than implementations, unless you
> specifically rely on a detail of the implementation (which is often a
> bad sign). That is, make it a List<T>, not an ArrayList<T>.
>


-- 
Dirk

http://www.neopax.com/technomage/ - My new book - Magick and Technology