AlertDialog MultiChoiceItems Listener problems.

Question

I am currently using the AlertDialog.builder to create a multichoice list for the user (checkboxes). This works great, except we want one of the buttons to deselect all of the others in the list.

builder.setMultiChoiceItems(list, checked,
  new DialogInterface.OnMultiChoiceClickListener() {
   public void onClick(DialogInterface dialog,
     int item, boolean isChecked) {

    if(item == ANY_ITEM_BUT_0)
    {

     ((AlertDialog) dialog).getListView().setItemChecked(0, false);

    }
   }
  });

When using "true" it will successfully check the box, but when using false it does not uncheck it (unless i have manually set it to true before hand.) Is there a separate listener I should be using to detect when a user clicks these? It seems to me that there are two checkmarks set, one by the "setItemChecked(0, true);", and one by actually selecting it.

This has been driving me nuts for a couple days now, any help would be greatly appreciated.

Answer 1

Dont think you can change the values in the list since the list-items (checkboxes) are controlled by the builder-object. However, you could simply make the dialog re-initiate when the first item is clicked... by dismissing the dialog that is showing, and create a new one....

Answer 2

To deselect the other items it will works fine::

if(item == ANY_ITEM_BUT_0){    
   for(int i=0; i<items.length;i++){  
            if (item != ANY_ITEM_BUT_0)                             
           ((AlertDialog)dialog).getListView().setItemChecked(i, false);
    }
}

Answer 3

OH!!! I forget it to ensure deselect you must change

checked for null ;), I had the same issue.

    builder.setMultiChoiceItems(list, null, new DialogInterface.OnMultiChoiceClickListener() {
...