this is my code to load listview items
@SuppressLint("DefaultLocale")
public class SearchList extends Activity {
private ArrayList<String> founded = new ArrayList<String>();
private OrderAdapter m_adapter;
ListView lv;
/** Called when the activity is first created. */
@SuppressLint("DefaultLocale")
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.searchlist);
lv = (ListView) findViewById(R.id.listView1);
new Load().execute();
m_adapter = new OrderAdapter(this, R.layout.itemview, founded);
lv.setAdapter(m_adapter);
lv.setTextFilterEnabled(true);
}
private class Load extends AsyncTask<Void, Void, Void> {
ProgressDialog progress;
@Override
protected void onPreExecute() {
progress = new ProgressDialog(SearchList.this);
progress.setMessage("loading....");
progress.show();
}
@Override
protected Void doInBackground(Void... params) {
try {
for (int i = 0; i <500000; i++) {
founded.add("String "+i);
}
} catch (Exception e) {
}
return null;
}
@Override
protected void onPostExecute(Void result) {
// write display tracks logic here
progress.dismiss(); // dismiss dialog
}
}
when i run the code the progress dialog already appear but after its dismiss i found that the list is empty no items added to it i do not know what is the problem and why the list is empty after the dialog loading .Pls need help thanks in advance.
Set listadapter in onPostExecute Because you Are using AsyncTask to get adapter data and setting ListAdapter before Completing AsyncTask So Try to Set ListAdapter after Completing AsyncTask
So add these
m_adapter = new OrderAdapter(this, R.layout.itemview, founded);
lv.setAdapter(m_adapter);
lv.setTextFilterEnabled(true);
lines in onPostExecute method instead of onCreate Method
@Override
protected void onPostExecute(Void result) {
// write display tracks logic here
progress.dismiss(); // dismiss dialog
m_adapter = new OrderAdapter(YourActivity.this, R.layout.itemview, founded);
lv.setAdapter(m_adapter);
lv.setTextFilterEnabled(true);
}