.

Moreover, what is viewType in onCreateViewHolder?

So basically, onCreateViewHolder(ViewGroup parent, int viewType) is only called when new view layout is needed; getItemViewType(int position) will be called for the viewType ; So when onBindViewHolder is called it needs to put in the right view layout and update the ViewHolder .

Additionally, what is the use of onBindViewHolder in Android? onBindViewHolder. Called by RecyclerView to display the data at the specified position. This method should update the contents of the itemView to reflect the item at the given position.

Also to know is, what is ViewHolder in RecyclerView?

RecyclerView. ViewHolder is a helper class that holds the View of a row or rows. One or more ViewHolder is created for each viewType. if several rows have the same ViewType then the same View can be reused for several rows. Adapter onBindViewHolder is the place to fill the view with specific data for each row.

What is RecyclerView adapter?

In Android 5.0 Lollipop, Android introduced RecyclerView widget. RecyclerView is flexible and efficient version of ListView. It is an container for rendering larger data set of views that can be recycled and scrolled very efficiently. Adapter for providing views that represent items in a data set.