Why do we need RecyclerView in Android?

In Android, RecyclerView provides an ability to implement the horizontal, vertical and Expandable List. It is mainly used when we have data collections whose elements can change at run time based on user action or any network events. For using this widget we have to specify the Adapter and Layout Manager.

What is the concept of RecyclerView and why is it useful?

RecyclerView makes it easy to efficiently display large sets of data. You supply the data and define how each item looks, and the RecyclerView library dynamically creates the elements when they’re needed. As the name implies, RecyclerView recycles those individual elements.

What is difference between CardView and RecyclerView?

The RecyclerView is a more advanced and more flexible version of the ListView. This new component is a big step because the ListView is one of the most used UI widgets. The CardView widget, on the other hand, is a new component that does not “upgrade” an existing component.

When was RecyclerView introduced?

Its functionality and usage has no equal amongst its peers… until now. Android Lollipop (API 21) introduced the new RecyclerView widget, with the intention of increasing ListView functionalities and taking them to the next level.

Which of the following are advantages to using RecyclerView?

Pros & Cons of RecyclerView

• integrated animations for adding, updating and removing items.
• enforces the recycling of views by using the ViewHolder pattern.
• supports both grids and lists.
• supports vertical and horizontal scrolling.
• can be used together with DiffUtil.

How can create RecyclerView in Android with example?

Using a RecyclerView has the following key steps:

1. Define a model class to use as the data source.
2. Add a RecyclerView to your activity to display the items.
3. Create a custom row layout XML file to visualize the item.
4. Create a RecyclerView.
5. Bind the adapter to the data source to populate the RecyclerView.

What is the difference between ListView and RecyclerView?

Summary. RecyclerView has greater support for LayoutManagement including vertical lists, horizontal lists, grids and staggered grids. ListView only supports vertical lists. ListView starts by default with dividers between items and requires customisation to add decorations.

What is RecyclerView and CardView and its importance?

RecyclerView is an extended version of ListView and GridView. It works on the ViewHolder design pattern. With the help of RecyclerView, we can add many extra features to our list of data. CardView gives a rich look and feels to our list of data.

What is a RecyclerView in Android?

The RecyclerView is a widget that is more flexible and advanced version of GridView and ListView. It is a container for displaying large datasets which can be scrolled efficiently by maintaining limited number of views.

How does a RecyclerView work?

As per Android documentation: RecyclerView is a UI component which allows us to create a scrolling list. It is basically a new ViewGroup used to render any adapter-based view in horizontal/vertical /grid or staggered grid manner using the Viewholder pattern.

What is the advantage of using RecyclerView over ListView in android?

RecyclerView can do more than ListView, but the RecyclerView class itself has fewer responsibilities than ListView. Out of the box, RecyclerView does not: Position items on the screen. Animate views.

What is the advantage of using RecyclerView over list view in android?

Advantages of RecyclerView over listview : Contains ViewHolder by default. Easy animations. Supports horizontal , grid and staggered layouts.