Updating a listview from a HTTP request
===

I am trying to display a list of items I am getting from a mysql database on a webserver. Here is my create for the page.

      public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.getlist);
		showBusyDialog();
		new GetData()
        .execute(picdetails);
	}

Here is my GetData class. The problem here is with the lines that are adding items to the listview. I am passing a JSON array as a text result.

       public class GetData extends AsyncTask<String, Void, String> {
		  @Override
	        protected String doInBackground(String... pic) {
	            // You might be tempted to display the busy dialog here, but you
	            // CAN'T update the UI from this method!
	            return loadImageFromNetwork(pic[0]);
	        }
	 
	        @Override
	        protected void onPostExecute(String result) {
	            // Our long-running process is done, and we can safely access the UI thread
	        	int ct_id;
		        String item_make;
		        String item_model;
		        String item_price;
		        String item_desc;
		        String item_location;
		        String item_image;
	        	dismissBusyDialog();
	          
	        	TableLayout tl = (TableLayout)findViewById(R.id.myTableLayout1);
	        	try{
	                 JSONArray jArray = new JSONArray(result);
	                 JSONObject json_data=null;
	                 for(int i=0;i<jArray.length();i++){
	                     json_data = jArray.getJSONObject(i);
	                        ct_id=json_data.getInt("id");
	                        item_make=json_data.getString("make");
	                        item_model=json_data.getString("model");
	                        item_price = json_data.getString("price");
	                        item_desc = json_data.getString("cardesc");
	                        item_location = json_data.getString("location");
	                        item_image = json_data.getString("image");
	                        String image_URL = "http://www.myurl.com/images/" + car_image;
	               
	                	 TableRow tr = new TableRow(null);
	                	 tr.setId(ct_id);
	                	 tr.setClickable(true);
	                	 
	                	 tr.setOnClickListener(new  OnClickListener() {

	                	        @Override
	                	        public void onClick(final View v) {
	                	        	
	                	            String sdet_id;
	                	        	int det_id;
	                	//        	v.setBackgroundColor(Color.GRAY);
	                	        	det_id = v.getId();
	                	        	sdet_id = String.valueOf(det_id);
	                	        	final Intent i = new Intent();
	                	            i.setClassName("demo.example.com", "demo.example.com.viewdetails");
	                	            i.putExtra("Det_id", sdet_id);
	                	            startActivity(i);
	                	            
	                	  //      	v.setBackgroundColor(Color.TRANSPARENT);
	                	            // TODO Auto-generated method stub
	                	        }
	                	    });
	                	 TableLayout.LayoutParams tableRowParams=
	                		  new TableLayout.LayoutParams
	                		  (TableLayout.LayoutParams.FILL_PARENT,TableLayout.LayoutParams.WRAP_CONTENT);

	                		int leftMargin=20;
	                		int topMargin=10;
	                		int rightMargin=15;
	                		int bottomMargin=20;

	                		tableRowParams.setMargins(leftMargin, topMargin, rightMargin, bottomMargin);

	                		tr.setLayoutParams(tableRowParams);

	                          /* Create a Button to be the row-content. */
	                     ImageView myimage = new ImageView(R.layout.getlist);
	                   
	                     BitmapFactory.Options bmOptions;
	             	    bmOptions = new BitmapFactory.Options();
	             	    bmOptions.inSampleSize = 1;
	             	    Bitmap bm = LoadImage(image_URL, bmOptions);
	             	    myimage.setImageBitmap(bm);
	                     tr.addView(myimage);
	                     TextView tmake=new TextView(R.layout.getlist);
	                    // tmake.setText(item_make);
	                     tmake.setText(Html.fromHtml("<H1>" + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;" + item_location + "</H1>" +  "<br />&nbsp;&nbsp;&nbsp;;" + item_desc  
	                  ));
	                     tr.addView(tmake); 
	                     
	                     TextView tmodel=new TextView(R.layout.getlist);
	                     tmodel.setText(Html.fromHtml("<b><H1>" + "&nbsp;&nbsp;" + "€" + item_price + "</b></H1></br></br>" ));
	                     tr.addView(tmodel);
	                     
	                     
	                      	  
	                /* Add row to TableLayout. */
	                 //  tr.setPadding(50, 0, 0, 0);
	                     tl.addView(tr);
	                     View v = new View(R.layout.getlist);
	                     v.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.FILL_PARENT, 1));
	                     v.setBackgroundColor(Color.rgb(51, 51, 51));
	                     tl.addView(v);
	                      }
	                 
	                 }
	           
	                 catch(JSONException e1){
	               	  Toast.makeText(getBaseContext(), "No Category Found" ,Toast.LENGTH_LONG).show();
	                 } catch (ParseException e1) {
	           			e1.printStackTrace();
	           	}
	                 
	

	        }
	    }


The problem appears to be with creating new items to add to the view, lines like this

       View v = new View(R.layout.getlist);

Is my overall structure ok or do I need to do this another way?