![]() We’re using the LinearLayoutManager, which offers a vertically scrollable list. It also sets a LayoutManger for the RecyclerView. This code creates a new instance of the WeatherAdapter. ![]() RecyclerView.layoutManager = LinearLayoutManager(this) Val recyclerView: RecyclerView = findViewById(R.id.recycler_view) Right-click on the main package name for your project, then navigate to New -> Kotlin File/Class. And, we’ll be naming the file WeatherAdapter.kt. We’ll be using the same Kotlin file for the Adapter and the ViewHolder classes. To do that, in Android Studio open the app-level adle file and add the following code on a new line under the dependency section: ![]() You may need to add the RecyclerView library to your project if it’s not already included. To follow along, create a new Kotlin project with default settings. If you need help with this, check out the guide from the official documentation. Note: In this tutorial, we assume you already know how to create a new Android Studio project. Here we will detail the steps to build an actual app with our sample weather data to demonstrate the process of using Kotlin RecyclerView. In the next section, we’ll walk through the process of adding a RecyclerView to an app. We now understand how RecyclerView works under the hood. This method helps the RecyclerView determine when there’s no further data to display. ![]() The number for the sample data is five (5). For example, in our sample weather data it returns the total number of weather readings. Just as the name implies, this method can return the size of the data set. For instance, in our weather data example, this method sets the value for temperature, date, and city to the associated TextView. However, it doesn’t handle the actual process of binding data to the views.Īnother method is the onBindViewHolder() it’s key job is to get the data to be displayed and bind them to the view holder’s layout. This method creates a new ViewHolder that initializes the item View.
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