Android Programming: The Big Nerd Ranch Guide, 5th Edition

Adding a RecyclerView

You want CrimeListFragment to display a list of crimes to the user. To do this, you will use a RecyclerView.

The RecyclerView class lives in another Jetpack library. So the first step to using a RecyclerView is to add the RecyclerView library as a dependency.

Listing 10.5  Adding RecyclerView dependency (app/build.gradle)

dependencies {
    ...
    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.1'
    implementation 'androidx.recyclerview:recyclerview:1.2.1'
    ...
}

Again, sync your Gradle files before moving on.

Your RecyclerView will live in CrimeListFragment’s layout file. To create the layout file, right-click the res/layout directory in the project tool window and choose New → Layout resource ...