ProgressDialog using AsyncTask producing constructor undefined error
问题 public class async extends AsyncTask<String, Integer, String>{ ProgressDialog prog; @Override protected void onPreExecute() { super.onPreExecute(); prog=new ProgressDialog(async.this);//This is chowing error prog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); prog.setMax(100); prog.show(); } @Override protected String doInBackground(String... params) { for (int i = 0; i < 10; i++) { publishProgress(5); try { Thread.sleep(100); } catch (InterruptedException e) { // TODO Auto-generated