Design for game Chippy's Revenge Version 0.0.1 for Android. If you did, though, you would simply create a single layout for both and set the image in the background and the text in the TextView control at runtime, instead of within the layout file. You could use a single layout file for ScoresActivity and HelpActivity, but it's not necessary. Its TextView control might possibly scroll.Įach activity class should have its own corresponding layout file stored in the application resources.
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There are no real user interface requirements on the Android platform, other than that the application must be stable, responsive and play nice with the rest of the Android system.
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Starting to sound familiar? This is the prototypical design of just about any mobile application, game or otherwise, on any platform.Ĭertainly, you are free to implement any kind of user interface you desire.
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Help - This screen displays instructions for how to play the game, including controls, goals, scoring methods, tips, and tricks.Scores - This screen displays the highest scores for the game (including high scores from other players), providing players with a challenge to do better.Play - This screen is where game play actually takes place.Menu - On this screen, a user can choose from among several options, including playing the game, viewing the scores, and reading the help text.Splash - This screen acts as a startup screen, with the game logo and version.The design of the Chippy's Revenge game is simple. To understand this more fully, imagine a theoretical game application called Chippy's Revenge. Each activity within an application has a unique purpose and user interface. Īn Android application is a collection of tasks, each of which is called an activity. We also take a look at some handy utility classes that can help developers debug applications. In this article, we focus on understanding how Android applications are put together. While there are other, more advanced, components developers can implement, these three components form the building blocks for each and every Android application. The three most important classes on the Android platform are Context, Activity and Intent. Coyright Lauren Darcey and Shane Conder, all rights reserved.Įvery platform technology uses different terminology to describe its application components. This article is excerpted from Sams Teach Yourself Android Application Development in 24 Hours (Amazon price at press time: $32.39), reprinted with permission of Sams Publishing.