Wait until AlertDialog shows

Question

I have some buttons in a ListView. When the user clicks on a button, a custom AlertDialog pops up. However, it takes some time for the AlertDialog to show because there are some images to load.

I want to make sure that the user can not click on the button again while the AlertDialog is loading, so I implemented a ProgressDialog that shows immediately onClick and dismisses as soon as the AlertDialog is there.

slotViewHolder.layout.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        ProgressDialog progressDialog = new ProgressDialog(context);
        progressDialog.setMessage("showing dialog...");
        progressDialog.show();

        loadDialogAndDoSomeAction();

        progressDialog.dismiss();
     }
});

The ProgressDialog still does not show. What am I doing wrong here? Are there better ways than this to prevent the user from doing something but wait?

Thanks in advance

Answer 1

Ok I solved it by implementing an onShowListener on my progressDialog

slotViewHolder.layout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
    ProgressDialog progressDialog = new ProgressDialog(context);
    progressDialog.setMessage("showing dialog...");

    progressDialog.setOnShowListener(new OnShowListener() {

    @Override
    public void onShow(DialogInterface dialog) {
           loadDialogAndDoSomeAction();
    }

    progressDialog.show();
});     

I'm dismissing the ProgressDialog in Alertdialog.onShow() in loadDialogAndDoSomeAction()

Answer 2

in your custom adapter you can override

public boolean areAllItemsEnabled ();

just keep a boolean as member for your adapter, and when you click on it change it to false.

Answer 3

Dialog has an OnShowListener. You can implement this on your AlertDialog. Then dismiss your ProgressDialog there and make your Views clickable again or whatever you need.

myAlert.setOnShowListener(new OnShowListener()
{
    @Override
    public void onShow(DialogInterface Dialog)
    {
         progressDialog.dismiss();
         // here you can make things clickable, etc...
    }
}):

onShow Docs

You will want to make your ProgressDialog a member variable so you can access it in the onClick() and in onShow().