CODEWITHSUNDEEP
javaandroidandroid-studioandroid-alertdialog
Eli Kozinets
Eli Kozinets

Reputation: 117

Deleting a listview Item through Alert Dialog

I'm attempting to make an alert dialog remove an item in a ListView but I can't find a solution to how I do it. Here is my code: 

contactsListView.setLongClickable(true);
    contactsListView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
        @Override
        public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
            AlertDialog.Builder builder = new AlertDialog.Builder(ContactsActivity.this);
            builder.setTitle("Contact Removal");
            builder.setMessage("Are you sure you want to remove this contact?");
            builder.setCancelable(false);
            builder.setPositiveButton("Yes, I'm sure!", new HandleAlertDialogListener());
            builder.setNegativeButton("No, I've changed my mind", new HandleAlertDialogListener());
            AlertDialog dialog = builder.create();
            dialog.show();
            return true;
        }
    });

Here is my HandleAlertDialogListener()

private class HandleAlertDialogListener implements DialogInterface.OnClickListener {
    @Override
    public void onClick(DialogInterface dialog, int which) {

    }
}

the problem is that I can't refer to the position of the item I want removed. Another question is what are the which values for the dialog's buttons? Any help would be appreciated.

Upvotes: 1

Views: 270

Answers (2)

barbudito
barbudito

Reputation: 578

I guess you have an Adapter to show items in a ListView?

If so, you should delete an item like I said:

myDataList.remove(position);
myAdapter.notifyDataSetChanged();

Where position is an attribute in this method:

onItemLongClick(AdapterView<?> parent, View view, int position, long id) {

Upvotes: 0

Anonymous
Anonymous

Reputation: 1320

In your onItemLongClick() make your position parameter final , then create your alert dialog like this :

new AlertDialog.Builder(this).setTitle("Delete").setMessage("Review").setPositiveButton(R.string.positive_delete, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(final DialogInterface dialog, final int id) {
          // use position here.
        }
      }).setNegativeButton(R.string.negative_reask, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(final DialogInterface dialog, final int id) {
          dialog.dismiss();
        }
      }).create().show();

Hope this helps!

Upvotes: 2

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