It's quite a bit of code, but one thing's missing that you have to do: In your onCreate, you're not calling setContentView(...). You have to do this to show at least something :-)
On Oct 3, 4:39 pm, vorcigernix <[email protected]> wrote: > Hello, > > I didn't found clear answer for why my code does not work. I assume it > is because I am trying to update textview from runnable. Anybody know > some workaround? Code isn't clean off course, I am happy to get that > working so far as I am totally new in java. > > public class MainScreenActivity extends ListActivity { > private Handler mHandler; > private String url = "http://sql08.globus.cz/turnovers/ > turnoversuma.ashx"; > static JSONArray valArray2; > public static final String DATE_FORMAT_NOW = "HH:mm:ss"; > TextView stext; > > private static class EfficientAdapter extends BaseAdapter { > private LayoutInflater mInflater; > private Bitmap mIcon1; > private Bitmap mIcon2; > > public EfficientAdapter(Context context) { > try{ > // Cache the LayoutInflate to avoid asking for a new one > each time. > mInflater = LayoutInflater.from(context); > > // Icons bound to the rows. > mIcon1 = BitmapFactory.decodeResource(context.getResources > (), R.drawable.green); > mIcon2 = BitmapFactory.decodeResource(context.getResources > (), R.drawable.yellow); > } > catch (Exception e) { > Log.e("ERROR", "ERROR IN CODE:"+e.toString()); > } > > } > > /** > * The number of items in the list is determined by the number > of speeches > * in our array. > * > * @see android.widget.ListAdapter#getCount() > */ > public int getCount() { > > try { > return valArray2.length(); > } catch (Exception e) { > // TODO Auto-generated catch block > e.printStackTrace(); > return 0; > } > } > > /** > * Since the data comes from an array, just returning the > index is > * sufficent to get at the data. If we were using a more > complex data > * structure, we would return whatever object represents one > row in the > * list. > * > * @see android.widget.ListAdapter#getItem(int) > */ > public JSONArray getItem(int position) { > JSONArray retobj = null; > try { > retobj = valArray2.getJSONArray(position); > } catch (JSONException e) { > // TODO Auto-generated catch block > e.printStackTrace(); > } > return retobj; > } > > /** > * Use the array index as a unique id. > * > * @see android.widget.ListAdapter#getItemId(int) > */ > public long getItemId(int position) { > return position; > } > > /** > * Make a view to hold each row. > * > * @see android.widget.ListAdapter#getView(int, > android.view.View, > * android.view.ViewGroup) > */ > public View getView(int position, View convertView, ViewGroup > parent) { > // A ViewHolder keeps references to children views to > avoid unneccessary calls > // to findViewById() on each row. > ViewHolder holder; > > // When convertView is not null, we can reuse it directly, > there is no need > // to reinflate it. We only inflate a new View when the > convertView supplied > // by ListView is null. > holder = new ViewHolder(); > > try { > if (convertView == null) { > convertView = > mInflater.inflate(R.layout.list_item_icon_text, > null); > > // Creates a ViewHolder and store > references to the two > children views > // we want to bind data to. > > holder.text = (TextView) > convertView.findViewById(R.id.text); > holder.text2 = (TextView) > convertView.findViewById > (R.id.text2); > holder.icon = (ImageView) > convertView.findViewById(R.id.icon); > > convertView.setTag(holder); > } else { > // Get the ViewHolder back to get fast > access to the TextView > // and the ImageView. > holder = (ViewHolder) > convertView.getTag(); > } > } catch (Exception e1) { > // TODO Auto-generated catch block > e1.printStackTrace(); > } > > // Bind the data efficiently with the holder. > > try { > String rowString = "[" + valArray2.getString(position) + > "]"; > JSONArray rowArr = new JSONArray(rowString); > JSONObject rowobj = rowArr.getJSONObject(0); > > holder.text.setText(rowobj.getString("BranchName")); > > holder.text2.setText(rowobj.getString("BranchValue")); > holder.icon.setImageBitmap((position & 1) == > 1 ? mIcon1 : mIcon2); > } catch (JSONException e) { > // TODO Auto-generated catch block > e.printStackTrace(); > } > > notifyDataSetChanged(); > > return convertView; > > } > > static class ViewHolder { > TextView text; > TextView text2; > ImageView icon; > } > } > > @Override > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > stext = (TextView)findViewById(R.id.statustext); > mHandler = new Handler(); > checkUpdate.start(); > > } > > private Runnable showUpdate = new Runnable(){ > public void run(){ > Calendar cal = Calendar.getInstance(); > SimpleDateFormat sdf = new SimpleDateFormat(DATE_FORMAT_NOW); > > try { > setListAdapter(new > EfficientAdapter(MainScreenActivity.this)); > > stext.setText(sdf.format(cal.getTime()).toString()+ " ok"); > > } catch (Exception e) { > > stext.setText(sdf.format(cal.getTime()).toString()+ " chyba"); > e.printStackTrace(); > > } > > } > }; > private static String convertStreamToString(InputStream is) { > /* > * To convert the InputStream to String we use the > BufferedReader.readLine() > * method. We iterate until the BufferedReader return null > which means > * there's no more data to read. Each line will appended to a > StringBuilder > * and returned as String. > */ > BufferedReader reader = new BufferedReader(new > InputStreamReader(is)); > StringBuilder sb = new StringBuilder(); > > String line = null; > try { > while ((line = reader.readLine()) != null) { > sb.append(line + "\n"); > } > } catch (IOException e) { > e.printStackTrace(); > } finally { > try { > is.close(); > } catch (IOException e) { > e.printStackTrace(); > } > } > return sb.toString(); > } > > private Thread checkUpdate = new Thread() { > public void run() { > > HttpClient httpclient = new DefaultHttpClient(); > > // Prepare a request object > HttpGet httpget = new HttpGet(url); > > // Execute the request > HttpResponse response; > try { > response = httpclient.execute(httpget); > // Examine the response status > > // Get hold of the response entity > HttpEntity entity = response.getEntity(); > // If the response does not enclose an entity, there > is no need > // to worry about connection release > > if (entity != null) { > > // A Simple JSON Response Read > InputStream instream = entity.getContent(); > String result= convertStreamToString(instream); > > valArray2 = new JSONArray(result); > > // Closing the input stream will trigger > connection release > instream.close(); > > } > > } catch (ClientProtocolException e) { > // TODO Auto-generated catch block > e.printStackTrace(); > } catch (IOException e) { > // TODO Auto-generated catch block > e.printStackTrace(); > } catch (JSONException e) { > // TODO Auto-generated catch block > e.printStackTrace(); > } > > mHandler.postDelayed(checkUpdate, 100000); > > mHandler.post(showUpdate); > }; > }; > > > > }- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. 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