Question

Seems there is several variations on this theme. I display an AlertBox to the user do want to save this item out? If they respond OK then I want the Alertbox to go away to be replaced by ProgressDialog box then when item is done being saved out it dismisses.

The current code below shows the Ok/Cancel AlertBox and dismiss properly and shows toast correctly. But if the user selects OK the ProgressDialog shows after all is completed and never goes away. The OK/Cancel button stays depressed until item is saved. If the user presses OK I want the AlertBox to go away and then display the ProgressDialog and dismiss it when done saving.

{
 Vibrate(ClickVibrate); 
 final ProgressDialog Dialog = ProgressDialog.show(v.getRootView().getContext(), "Loading", "Please wait...", true);
if(AlertDialogProcessing==0)
{    
ProgressDialog progress;  
final String title="Save Item";
final String message="Press OK to save or CANCEL.";
final String ok="OK";
final String cancel="CANCEL";

final AlertDialog.Builder alertbox = new AlertDialog.Builder(this);
alertbox.setCancelable(true);
alertbox.setIcon(android.R.drawable.ic_dialog_alert);
alertbox.setTitle(title);
alertbox.setMessage(message);
alertbox.setNegativeButton(cancel, null);

final AlertDialog dlg = alertbox.create();

 alertbox.setPositiveButton(ok,new DialogInterface.OnClickListener()
   {  
     public void onClick(DialogInterface arg0, int arg1)
     {  
      dlg.dismiss();
      Dialog.show();
      Vibrate(ClickVibrate); 
      Drawable drawable= getItem(imageSelect);   
      AlertDialogProcessing=1;   
      //task that takes 3 seconds
      AlertDialogProcessing=0;
      Toast.makeText(getApplicationContext(), "Item Saved.", Toast.LENGTH_LONG).show();   
    } 
  });
 alertbox.setNegativeButton(cancel,new DialogInterface.OnClickListener(){ public void onClick(DialogInterface arg0, int arg1){AlertDialogProcessing=0; Vibrate(ClickVibrate); } });
 alertbox.show();
 }
 Dialog.dismiss();
}

Answer 1

You’re calling both ProgressDialog.show() and ProgressDialog.dismiss() inside the positive button’s onClick(), no wonder the ProgressDialog doesn’t show. If the saving process takes some time such that you need a ProgressDialog, I’d strongly recommend using the AsyncTask class. It runs a task on a worker thread and gives you a possibility to update the UI with the current task progress. Hope this helps.