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

Building the Scene

The first step is to build the scene that will be animated. Create a new project called Sunset. Make sure that your minimum API level is set to 24.

Before setting up anything else, open the app/build.gradle file. As in other apps, you are going to use View Binding to help you out in Sunset.

Listing 25.1  Setting up View Binding (app/build.gradle)

    ...
    android {
        ...
        kotlinOptions {
            jvmTarget = '1.8'
        }
        buildFeatures {
            viewBinding true
        }
    }

Do not forget to sync your changes with Gradle.

A sunset by the sea should be colorful, so it will help to start by naming a few colors. Open the colors.xml file in your res/values folder and add the following values to it.

Listing 25.2  Adding sunset colors (res/values/colors.xml ...