RecyclerView is mostly used to design the user interface with the fine-grain control over the lists and grids of android application. It is an advanced version of the ListView with improved performance and other benefits. In Adapter and ViewHolder: public class MyRecyclerViewAdapter extends RecyclerView. The RecyclerView class extends the ViewGroup class and implements ScrollingView interface. MyAdapter = new MyRecyclerViewAdapter(context, this) In the Adapter In the adapter class we add the following Step 1: Create an interface We first want to create an interface ListItemClickListener (can be named anything). The trick here is to make sure NotifyItemChanged is called only if the oldvalue is not same as new value. Once the NotifyItemChanged is called, the recyclerview at the specified position will be updated/redrawn. Note : To have access to the Parcelize annotation that we recently used on our entities it is also necessary to activate the experimental Android Extensions. set up adapter and pass clicked listener this Since the data to the RecyclerView is usually passed from the same activity, we can use the position to get data of the item that is clicked. NotifyItemChanged Signals that the item at the specified position has changed. The dataBinding is a feature that is not active by default when we create a new project with Android Studio, so we will enable dataBinding in the adle file of the app module. Based on the link: Why doesn't RecyclerView have onItemClickListener()? and How RecyclerView is different from Listview?, and also general idea, I give my solution here:ĭefine one interface RecyclerViewClickListener for a passing message from the adapter to Activity/ Fragment: public interface RecyclerViewClickListener
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