Dianne, can you give any guidance on when to use copy protection and when not to?
I have it enabled on an app, but after a few updates it's starting to grow because I need to have graphic resources for the different densities. I'm considering disabling copy protection to reduce install size but I am hesitating because I can't find any real solid documentation on the effects. On Jul 9, 8:28 pm, Dianne Hackborn <[email protected]> wrote: > It's because a version of the .apk needs to be available read-only to all > applications, so they can pull things like labels and icons from it. So to > install a forward-locked app, the real .apk is only readable by its app, and > a fake world-readable .apk is also created that has a copy of the real > .apk's resources. > > So enabling forward locking can double the size of your app (at most, if it > contains no code). > > Also when installing the code needs to be copied out of the .apk so that it > can be run (and at this point the dalvik code is optimized for the device it > is running on). This is stored compressed in the .apk, so if there is a lot > of code the actual install size can be significantly larger, regardless of > forward-locking. Especially if the code compresses well, such as C++ with a > lot of big mangled symbols. > > > > > > On Fri, Jul 9, 2010 at 2:16 PM, Mark Murphy <[email protected]> wrote: > > On Fri, Jul 9, 2010 at 5:05 PM, John <[email protected]> wrote: > > > Is there a technical reason why it takes up that much space? > > > As opposed to a non-technical reason? I'm sure there is. Do I know all > > of the details? No. > > > -- > > 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 Developers" group. > > To post to this group, send email to [email protected] > > To unsubscribe from this group, send email to > > [email protected]<android-developers%2Bunsubs > > [email protected]> > > For more options, visit this group at > >http://groups.google.com/group/android-developers?hl=en > > -- > Dianne Hackborn > Android framework engineer > [email protected] > > Note: please don't send private questions to me, as I don't have time to > provide private support, and so won't reply to such e-mails. All such > questions should be posted on public forums, where I and others can see and > answer them. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
