Learning Android™ Application Programming: A Hands-On Guide to Building Android Applications

Enabling Night Mode

When users are riding their bikes at night, the glare from a device’s screen might make your app difficult to use and could even be a hazard to the rider. You can fix this by dimming the screen.

1. Create a new class called NightMode in the com.androiddevbook.onyourbike.helpers package. Add a static string called CLASS_NAME and set this inside the class’s constructor, as shown in Listing 6.8.

Listing 6.8 Creating the NightMode Class

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public class NightMode {    private static String CLASS_NAME;    public NightMode() {        CLASS_NAME = getClass().getName();    }}

2. Add a parameter called window of type Window to the constructor, and save this in a class property:

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