List View Is Not Refreshing Even After Calling Notifydatasetchanged()

I am trying to refresh listView from Adapter class itself but it isn't refreshing don't know where the mistake is. public class DeliveryListAdapter extends BaseAdapter { Delivery

Solution 1:

As i have said in comment you messed with reference.See the code below:

privatevoidupdateResults(List<DeliveryListBean> dlb) {
    deliveryListBeans=dlb;
    notifyDataSetChanged();
}

Here you are assigning new list to the previous list so reference is changed . The adapter will never get notified cause adapter having previous reference . So the Solution is in two cases: if you want the old data too do as and second if you need only new data:

 private void updateResults(List<DeliveryListBean> dlb) {
    deliveryListBeans.addAll(dlb);
    notifyDataSetChanged();
}


 private void updateResults(List<DeliveryListBean> dlb) {
    deliveryListBeans.clear();
    deliveryListBeans.addAll(dlb);
    notifyDataSetChanged();
}

Solution 2:

Why you create new Adapter??

 DeliveryListAdapter   ald=newDeliveryListAdapter(ct,deliveryListBeans);

I think you should just update for deliveryListBeans

and use this method of ADM user.

 private void updateResults(List<DeliveryListBean> dlb) {
deliveryListBeans.clear();
deliveryListBeans.addAll(dlb);
notifyDataSetChanged();

}

I dont' see you use 'response' . You just check status from this var <- It is data from your server

Solution 3:

I found an alternative way of doing it. I just removed the position from list and the mistake is creating new object ald=new DeliveryListAdapter(ct,deliveryListBeans); you don't have to create any new object. What I did is

if (status==1)
{
Log.d("updated delivery",response.toString());
deliveryListBeans.remove(position);
notifyDataSetChanged();
Toast.makeText(ct, "Delivery Successful", Toast.LENGTH_SHORT).show();
}