FYI: The next release of protocol buffers (2.2.0, which I'm working on pushing now, but could take a couple weeks depending on how many unexpected issues I run into) introduces a new "lite" version of the runtime which omits lesser-used features like descriptors and reflection. This also avoids a lot of initialization work. I haven't tested on Android myself, but another developer reported to me that it completely fixes the initialization slowness that you're seeing here. The lite runtime is also much smaller in terms of binary footprint, which should be helpful on Android and other mobile platforms.
On Jul 21, 3:57 pm, Micah <[email protected]> wrote: > When using Protocol Buffers with Android (running in the Windows VM) > I'm noticing that the first time I instantiate a protocol buffer based > class Android lags for some time. When I step through it looks like > it's spending a lot of time dynamically loading the protocol buffer > classes. Is there something I can do to speed up this process? I > haven't tested yet on a physical device, so the delay might not be as > bad but in the VM it takes about 30 - 45 seconds to load all the > classes and get past that first message instantiation. > > What I did was downloaded the Protocol Buffers source code. Compiled > the .java files. Stuffed them into a .jar. Added the .jar as an > external library to my Eclipse project. Generated the .java classes > from the .proto files. Added the generated .java files to my project. > Ran my project. > > I'm not sure if I'm doing something wrong it terms of how to reference > external libraries with an Android project, but 30-45 seconds seems > like a very long time to wait on a 2.6GHz machine. > > Also, I recently learned that android uses Protocol Buffers > internally. Will this cause any sort of conflicts with my > included .jar that could be the problem? I *think* the namespace is > different but I'm not entirely sure. > > Lastly. Why did Google use Protocol Buffers internally and not make > it available to SDK developers. :( This makes me very sad knowing > that it's all right there and I can't use it. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
