If Android app support is good or not, it depends on how we do it. For
BB10, I heard that they're using some emulator(maybe qemu) to run
android app, and that means running a vm over vm, so the performance
would be much worse than real android. I don't know what other
platforms you are referring to, but I believe they are using the
similiar emulator concept.
We can have Android app support in a different way on touch. We change
the framework of android to native, hopely this would make performance
even better than the real android.
------------------ Original ------------------
*From: * "Josh Leverette"<coder543@xxxxxxxxx>;
*Date: * Thu, Jun 20, 2013 10:16 PM
*To: * "leon lee"<llrraa@xxxxxx>;
*Cc: * "Benjamin Tegge"<benjaminosm@xxxxxxxxxxxxxx>;
"ubuntu-phone"<ubuntu-phone@xxxxxxxxxxxxxxxxxxx>;
*Subject: * Re: [Ubuntu-phone] how do you feel about touch
Ubuntu touch is not the first platform to compete with iOS and
Android. If you look around, you'll see that any platform which has
Android app support has terrible apps, and most of those platforms are
dead. BB10 is the only one still alive, and the quality of apps
available for it is terrible. This was caused in a big way by
supporting Android apps. Companies did not need to develop an app for
BB10 because their Android app still worked just fine on there, when
in reality it is a terrible way to do anything on a BB10 device.
Supporting Dalvik on Ubuntu touch would be a mistake.
On Thu, Jun 20, 2013 at 9:12 AM, leon lee <llrraa@xxxxxx
<mailto:llrraa@xxxxxx>> wrote:
Thanks for your reply.
I know Java is great for its cross platform and other features,
that's why it's the most popular language world-wide, but the cost
is performance, which you can tell from the history of android.
Before 2.3, android's input message handling is in java, but that
doesn't meet the need of some apps such as some wonderful games.
So from 2.3, android handle the input message in native code, and
let the app get the input message from native part directly. This
is a big jump for android, but core services like windowmanagement
and activitymanagemant are still in java code. I think this might
make it possible to change them into native so as to improve the
performance of android.
Ubuntu Touch's ARCH is ok with my idea. What we need to do is to
make dalvik vm available here, so we can make use of that large
amount of android apps.
Can you share the links of videos about Android from the past
Google IO events. I'm quite interested in them.
------------------ Original ------------------
*From: * "Benjamin Tegge"<benjaminosm@xxxxxxxxxxxxxx
<mailto:benjaminosm@xxxxxxxxxxxxxx>>;
*Date: * Thu, Jun 20, 2013 10:50 AM
*To: * "leon lee"<llrraa@xxxxxx <mailto:llrraa@xxxxxx>>;
*Cc: * "ubuntu-phone"<ubuntu-phone@xxxxxxxxxxxxxxxxxxx
<mailto:ubuntu-phone@xxxxxxxxxxxxxxxxxxx>>;
*Subject: * Re: [Ubuntu-phone] how do you feel about touch
Hello Leon,
Prejudices are not a good conversation starter if you seek for
valuable advice. Just because you heard that Android runs some
flavour of Java and you personally have never heard about anything
good coming from Java doesn't mean that performance of apps
running on top of Android is or will always be poor. You can also
write poor performing code for other languages and platforms or
you could write blazing fast performing code that nobody wants to use.
Ubuntu Touch is still in early pre-release/development stage. Some
of the core components are not even ready for dogfooding the
developers and early adopter community. Even after the initial
release in October Ubuntu Touch will evolve like the other leading
mobile platforms have during the past years and continue to do so.
If you're interested in seeing Ubuntu Touch mature day by day get
a Nexus phone and start your journey. If you want to get into
developing apps that are ready for prime time and publish them so
that a lot of people can use them immediately then Android is a
good choice. Some of the videos about Android from the past Google
IO events are worth watching, because they explain that there is
more needed for an app to become successful/usable than just plain
performance. Learning how users interact with software and devices
is time well spent. And you probably get to know what the
competition does wrong and how to improve the status quo.
Regards, Benjamin
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Sincerely,
Josh
