On Sat, Jul 17, 2010 at 11:45 PM, kypriakos <demet...@ece.neu.edu> wrote: > But older postings and > some > sources supported that in general external jars may not work under > Android
There are a multitude of reasons why an existing JAR may not work on Android: -- It was compiled with Java 1.4.2 or a non-Sun/Oracle Java compiler -- It assumes certain classes exist (from, say, JavaSE) that do not ship with Android -- It uses JNI (and therefore needs to be adjusted to work with the NDK) -- It assumes certain platform binary programs exist, or exist at certain paths, which may not be the case on Android -- and so on > and that their corresponding source should be compiled with its SDK > before > they can be used That will directly resolve the compiled-with-wrong-compiler program and will give you better error information for the assumes-certain-classes-exist problem. > In any > case, > then it makes no sense as to why the classes are not visible in the > emulator > even though I (finally) managed to include the jars in the apk - > having them in > the classpath does not do it. Step #1: Put the JAR in libs/ Step #2: If using Eclipse, add it to your build path Step #3: Code to the JAR's API and build your APK and you're done...assuming the JAR is Android-friendly. For example, here is a sample project using a re-compiled edition of the BeanShell interpreter: http://github.com/commonsguy/cw-android/tree/master/Java/AndShell/ -- Mark Murphy (a Commons Guy) http://commonsware.com | http://github.com/commonsguy http://commonsware.com/blog | http://twitter.com/commonsguy _The Busy Coder's Guide to Android Development_ Version 3.1 Available! -- You received this message because you are subscribed to the Google Groups "Android Beginners" group. NEW! Try asking and tagging your question on Stack Overflow at http://stackoverflow.com/questions/tagged/android To unsubscribe from this group, send email to android-beginners+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en
