android studio recyclerview move up and down

Void OnItemClick( object sender, int position) This handler briefly displays a toast that indicates which item row was touched and when spinner value is changed it toasts about the value selected from spinner drop down: we'll create an item-click event handler method and SpinnerItemSelectionChangedEvent in our MainActivity. Therefore whenever user touches or change spinner value, these events are handled at activity class level. Now its time to assign these event handlers to the main activity class. In the above code, at very high level, we are assigning values to the view objects at a specific row position with the values from the dataset. Vh.Image.SetImageResource (item.ImageId) Vh.Quantity.Tag = position // keep reference to list view row position Public TextView TotalAmount ', item.Price * item.Quantity) Public class VegeViewHolder: RecyclerView.ViewHolder Below is the complete example of the View Holder class. Note that ItemSelected event is an event called after the user has selected the value from the spinner drop down list and also I have added another event handler (i.e itemlistner) which tell which row is touched in the recycler view. Here we are registering event handlers (in this case itemlistner and spinnerItemSelected) with the View objects.

The view holder class has spinner object and then the spinner object is assigned to the event ' ItemSelected' in the ViewHolder class constructor. Let's start with the code I have created ViewHolder class, which will have reference to the view objects. My explanation here is limited to show how to add nested controls on the recycler view row and listen to the event listener of those nested controls and update the list row. The basic concept of how to recycler view is explained on the Xamarin guid page very neatly ( ). To start with, this article is about creating a recycler view in Xamarin Android and then adding spinner control on the each row and updating the list row dynamically based on the spinner drop down value selected. In the main activity I can just update the underlying dataset and then there is option called notifyitemchanged, which will update the view row recycler list, based on the index provided. So, I came up with a idea to event listner to the spinner drop down and pass the event listner to the main activity. I was finding difficult to dynamically update the view row when I changed with spinner drop down value. As I'm keep learning Xamarin cross platform, I was developing sample app which has recycler view and the view has nested controls like spinner and checkboxes.

Android studio recyclerview move up and down