Untitled

First view in android by using progress bar
private class InsertDataTask extends AsyncTask<Void, Void, Void> {
  private final ProgressDialog dialog = new ProgressDialog(Main.this);

  // can use UI thread here, and you see we add a progress dialog
  protected void onPreExecute() {
     this.dialog.setMessage("Inserting data...");
     this.dialog.show();
  }

// automatically done on worker thread (separate from UI thread)
  protected Void doInBackground(Void... args) {
    //Do background work here
     return null;
  }

  // can use UI thread here and we dismiss the progress dialog
  protected void onPostExecute(final Void unused) {
     if (this.dialog.isShowing()) {
        this.dialog.dismiss();
     }