1<p>This application is an example of an Android library project, a type of 2project that lets you store and manage shared code and resources in one place, 3then make them available to your other Android applications. </p> 4 5<p>The TicTacToeLib library project is designed to provide a game-play Activity, 6<code>GameActivity</code> to other applications. Dependent applications simply 7launch the Activity using an explicit intent — once launched, 8<code>GameActivity</code> assumes control of the application lifecycle and 9handles all events and UI interactions.</p> 10 11<ul> 12<li>The library project includes an <a 13href="AndroidManifest.html">AndroidManifest.xml</a> file that 14declares <code>GameActivity</code>.</li> 15<li><a 16href="src/com/example/android/tictactoe/library/GameActivity.html">GameActivity.java</a> 17handles most of the application lifecycle and manages general game play.</li> 18<li><a 19href="src/com/example/android/tictactoe/library/GameView.html">GameView.java</a> 20renders the UI of the game and manages interaction events during game play.</li> 21</ul> 22 23<p>If you want to build the TicTacToeLib application, you can obtain it by 24downloading the "Samples for SDK API 8" component (or higher version) into your 25SDK, using the <em>Android SDK and AVD Manager</em>. </p> 26 27<p>Note that you can not build and run TicTacToeLib independently, since it is a 28library project and not a true Android application project. To run it, you need 29to build the application that uses the library project — in this case, the 30<a href="../TicTacToeMain/index.html">TicTacToeMain</a> application, which is also included in the Samples 31SDK comnponent. </p> 32 33<p>To build an application that uses a library project, you also need to update 34to the latest version of the SDK tools (r6 or higher) and Android platforms, as 35well as the latest version of ADT (0.9.7 or higher), if you are developing in 36Eclipse. </p> 37 38<p>For information about how to set up Android library projects, refer to 39<a href="../../../guide/developing/eclipse-adt.html#libraryProject">Developing 40in Eclipse with ADT</a> or <a 41href="../../../guide/developing/other-ide.html#libraryProject">Developing in 42Other IDEs</a>, depending on your environment.</p>