indeed, but don't use reflection, instantiate OS-dependent classes which implement a common interface by *name*. this breaks the class loading chain.
reflection == last resort, IMHO At 6:01 PM -0800 11/17/09, sdphil wrote: >i think what this boils down to, is that you need to build everything >with 2.0 SDK, and then just make sure you're not using any APIs from >versions you don't want. And you will want to abstract away calls you >don't have using reflection. Simply doing something like "if (version >>= 2.0) then makeSpecialCallTo20Feature();" won't work since the JVM >pre-verifies and will wind up barfing saying it can't find that >special feature anywhere (even though when it goes to execute, it >won't need it anyway). somewhat annoying, and it sure would have been >nice if the android folks had just provided a big reflection >abstraction layer for all new SDK features... > >On Nov 17, 1:23 pm, Kai <snowst...@gmail.com> wrote: >> I have the same question. >> >> 1.5 compiler is having problem with the new layout directories that I >> need for 1.6 and 2.0 >> >> how can I support 1.5, 1.6 and 2.0 at the same time? >> >> On Nov 3, 9:50 pm, sdphil <phil.pellouch...@gmail.com> wrote: >> >> > i need my app to support1.5and above. >> >> > i noticed that if I create my build.xml file using -- >> >> > c:\tools\android\2.0r3\tools\android update project --name MyProject -- >> > path C:\MyProject --target 2 >> >> > it complains about my resource directory names "res/drawable-hdpi, res/ >> > drawable-ldpi, etc... res/layout-large, etc..." saying "invalid >> > resource directory name". >> >> > If I use 1.6r1 tool set >> > c:\tools\android\1.6r1\tools\android update project --name MyProject -- >> > path C:\MyProject --target 2 >> >> > Everything works fine. >> >> > If I use target 3 (1.6 and above) >> > c:\tools\android\2.0r3\tools\android update project --name MyProject -- >> > path C:\MyProject --target 3 >> >> > Everything works fine. >> >> > So, do I basically *have* to use 1.6r1 to build for1.5? And does >> > that mean that those special directory names will only work on 1.6 and >> > above? >> >> > tia. > >-- >You received this message because you are subscribed to the Google >Groups "Android Developers" group. >To post to this group, send email to android-developers@googlegroups.com >To unsubscribe from this group, send email to >android-developers+unsubscr...@googlegroups.com >For more options, visit this group at >http://groups.google.com/group/android-developers?hl=en -- jason.vp.engineering.particle -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
