6.5 Overview of This App’s Classes

This app consists of eight classes:

  • MainActivity (the Activity subclass; Section 6.6)—Hosts the MainActivityFragment.

  • MainActivityFragment (Section 6.7)—Displays the CannonView.

  • GameElement (Section 6.8)—The superclass for items that move up and down (Blocker and Target) or across (Cannonball) the screen.

  • Blocker (Section 6.9)—Represents a blocker, which makes destroying targets more challenging.

  • Target (Section 6.10)—Represents a target that can be destroyed by a cannonball.

  • Cannon (Section 6.11)—Represents the cannon, which fires a cannonball each time the user touches the screen.

  • Cannonball (Section 6.12)—Represents a cannonball that the cannon fires when the user touches the screen.

  • CannonView (Section ...

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