Technique for get the ApplicationContext anywhere

Question

Recently I discovered a snippet that use the following technique in order to access statically from anywhere to the application context. It looks cool but is really a nice option or is a bad tech for some reason?

public class MyApp extends Application {
    private static MyApp instance;

    public static MyApp getInstance() {
        return instance;
    }

    public static Context getContext(){
        return instance.getApplicationContext();
    }

    @Override
    public void onCreate() {
        super.onCreate();
        instance = this;
    }
}

Answer 1

Unless you simply expose a public method that takes a Context as an argument inside of your classes that require Context (and pass it in from your Activity, etc), this is the way to do it.