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copied!<p>I just tried something similar. I tried to add a method getLibraryVersion() to my custom Application class. So I would be able to call</p> <pre><code>MyLibrary.getLibraryVersion() </code></pre> <p>from within the code that included that library. But it seems that you can not access the String resources via <code>getText()</code> or <code>getString()</code> like this:</p> <pre><code>public class MyLibrary extends Application { @Override public void onCreate() { super.onCreate(); // provide an instance for our static accessors MyLibrary.instance = this; } private static void checkInstance() { if (MyLibrary.instance == null) { throw new IllegalStateException("Application not created yet!"); } } /** * @return the library name */ public String getLibraryName() { MyLibrary.checkInstance(); return MyLibrary.instance.getString(R.string.app_project_name).toString(); } ... } </code></pre> <p>Because the onCreate() method seems not to be called, the instance is always null!</p> <p>As this way was not working out, and as you saw you cannot access the version the way you tried, I just hard coded the version and the library name, into my custom application class like this:</p> <pre><code>public class MyLibrary extends Application { /** * @return the library name */ public String getLibraryName() { return "org.yourCompany.android.lib.YourLibName"; } /** * @return the library version */ public String getLibraryVersion() { return "1.0.0"; } } </code></pre> <p>I know that this is kind of a dirty solution, and I would prefer a cleaner version of coding, with these Strings stored as String resources in strings.xml but I don't know any better way. So you just have to change the library name and version in your manifest or better the strings.xml AND in the Application class.</p> <p>But how often do you change the library name or version? Hope this can help somebody and save time!</p> <p>PS: some of the above code is based on this: <a href="http://blog.tomgibara.com/post/126377651/global-application-state-in-android" rel="nofollow">http://blog.tomgibara.com/post/126377651/global-application-state-in-android</a></p>

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