How to use RecyclerView?

1 year ago
Benjamin Taylor
1 minute

To display large amounts of data in Android, the RecyclerView is a high-performance component that should be used. The following steps are required to use the RecyclerView:

  1. Add a RecyclerView widget to the XML layout file.
<androidx.recyclerview.widget.RecyclerView
    android:id="@+id/recyclerView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>
  1. Create an adapter class for RecyclerView that extends RecyclerView.Adapter and implement the following methods:
  1. onCreateViewHolder: Instantiates a ViewHolder and returns it.
  2. onBindViewHolder: attach data to ViewHolder
  3. Return the size of the dataset: getItemCount.
  1. Create a ViewHolder class that extends RecyclerView.ViewHolder and in the constructor, find the views in the layout.
  2. Initialize RecyclerView, set LayoutManager and Adapter in Activity or Fragment.
RecyclerView recyclerView = findViewById(R.id.recyclerView);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setAdapter(new MyAdapter(dataList));
  1. You can customize with additional effects like ItemDecoration and ItemAnimator as needed.

By following the above steps, you can now use RecyclerView to display a large amount of data in your Android application.

bannerAds