Android - Java / c# /c++ Speed

Question

I am to start writing my first Android application starting next week here at work. I am curious about the video and results of it found here: http://www.youtube.com/watch?v=It8xPqkKxis

The submitter indicates that c++/c# runs faster than Java on the Android platform though this was on Android 1.5.

At any rate, can anyone confirm that there is indeed a increase in performance using c++ or c# on 2.2? Our application will need as much speed and batterylife it can get.

Thanks in advance!

Edit: Per Woot4Moo's comment, yes, which implementation runs the best? Take all factors into account including runtimes, frameworks, compilers ... There is a obvious difference and I want to know if anyone has experience with writing c++/c# on android

People tend to think languages have speeds, they do not. Interpreters and Compilers have speeds. — Woot4Moo
– Woot4Moo, Commented Oct 7, 2010 at 22:10
If it's your first app, I'd strongly recommend writing it entirely in Java. If it's not fast enough, you can rewrite the slow parts in C++ later. Your life will be much easier if you stick to a single language, and the Android development environment works best with Java. — fadden
– fadden, Commented Oct 8, 2010 at 18:22

thyrgle · Accepted Answer · 2010-10-07 22:53:38Z

1

As for C++: It is the "native language" the Android is written in. It probably isn't interpreted like Java is. As for C# it is most likely compiled too. And, usually, when a language is interpreted it is slower than another language (or itself maybe) if it is compiled.

answered Oct 7, 2010 at 22:53

thyrgle

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2 Comments

satur9nine Over a year ago

Not quite right, most "Android" code is written in Java. The operating system it runs on is Linux, which is C/C++/assembly/etc but all the stuff we think of as Android--Activity, Service, WindowManager--is written in Java.

thyrgle Over a year ago

@satur9nine: And how do you think the Java interpreter was made? With C/C++/Asm.

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