Android Dialog Box without buttons

Question

Can i create a dialog box without negative or positive buttons. That destroys it self after specific action?

 AlertDialog.Builder dialog_detect= new AlertDialog.         


        

Answer 1

Really depends on what "action" is being performed:

---

 AlertDialog.Builder dialog_detect= new AlertDialog.Builder(MainActivity.this);
 dialog.setTitle("Detecting.....");
 dialog.setMessage("Please Wait");
 dialog.show();

 timeConsumingDetectMethod();

 dialog.dismiss();

This way you get a frozen UI until timeConsumingDetectMethod() finishes.

---

However, the following way runs the action in background, while a very responsive dialog is shown. Also, cancels the action when dialog is cancelled.

AsyncTask task = new AsyncTask() {

        private AlertDialog dialog;

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            dialog= new AlertDialog.Builder(MainActivity.this);
            dialog.setTitle("Detecting.....");
            dialog.setMessage("Please Wait");

            dialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
                @Override
                public void onCancel(DialogInterface dialogInterface) {
                    cancel(true);
                }
            });

            dialog.show();
        }

        @Override
        protected Void doInBackground(Void... voids) {
            timeConsumingDetectMethod();
            return null;
        }

        @Override
        protected void onPostExecute(Void aVoid) {
            super.onPostExecute(aVoid);
            dialog.dismiss();
        }

    }.execute();