In chapter 2, we're going to add more features.
Feature1: SQLite Database
In chapter1, we prepared only 15 quizzes. As the quiz app, these are not enough for users. So, I'll show you how to use SQLite Database, and you can generate lots of quizzes.
Feature2: Sound Effect
The sound effect is a necessary feature for games. Let's add correct and wrong sounds, and keep users from getting bored! (I'll give you downloadable sound files.)
Feature3: AdMob Banner Ad
After releasing the app, generating revenue is the significant part. I created the video about the interstitial ad in catch the ball tutorial, so we're going to implement the banner ad in this tutorial. If you combine interstitial and banner ads, you'll be able to make more money!