applyToActivitiesIfAvailable

Applies contrast to all activities by registering a ActivityLifecycleCallbacks to your application.

A normal usage of this method should happen only once in onCreate or any methods that run before any of your activities are created. For example:

public class YourApplication extends Application {
  @Override
  public void onCreate() {
    super.onCreate();
    ColorContrast.applyToActivitiesIfAvailable(this);
  }
}

This method will try to apply a theme overlay in every activity's onActivityPreCreated callback.

Parameters