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From: Dirk Bruere at NeoPax <dirk.bruere@gmail.com>
Newsgroups: comp.lang.java.programmer
Subject: Re: ArrayAdapter
Date: Thu, 31 Mar 2011 12:21:55 +0100
Organization: Dirk Bruere at Neopax
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On 31/03/2011 11:19, Andreas Leitgeb wrote:
> Arved Sandstrom<asandstrom3minus1@eastlink.ca>  wrote:
>> On 11-03-30 10:03 PM, Dirk Bruere at NeoPax wrote:
>>> I have an ArrayAdapter in main.
>>> How do I access it from another class?
>> I trust you mean a Main class, not a "main" method.
>
> Now, that you spell it out like this, it seems more likely, that
> an ArrayAdapter-instance is stored in a local variable of public
> static void main(String[] args).
>
> Unless main passes the reference to another class, I doubt
> there'd be a way for that other class to access the reference.
>
> Perhaps, reflection can still do it, but I wouldn't bet on it.
>
Back online again.
Here is a code sample:

public class controller extends Activity {

	/** Called when the activity is first created. */
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.main);

         Context currentContext = this;
         final BlinkAPI blinkAPI = new BlinkAPI(currentContext);


         lvVideo = (ListView)findViewById(R.id.ListViewVideo);
         radioTitleAdapter = new 
ArrayAdapter<String>(this,android.R.layout.simple_expandable_list_item_1,BlinkAPI.videoArrayList);
         lvVideo.setAdapter(radioTitleAdapter);
         }
         ...
        }

//*******************************************
        public class BlinkAPI {
	
	private static Context mContext;
	static ListView albumsLV, videoLV, tracksLV, artistsLV, radioLV;
	
	
	public BlinkAPI( Context ctx)
	{
		BlinkAPI.mContext = ctx;
		
		radioLV = (ListView )((Activity) 
mContext).findViewById(R.id.ListViewRadio);
		
	}
	
	private static void updateRadioTitles( )    {

             ...
             radioTitleAdapter.add(titleStr);		//PROBLEM
             radioTitleAdapter.notifyDataSetChanged(); //PROBLEM
     }

How do I get at radioTitleAdapter?

-- 
Dirk

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