If you are working on the platform, look at the PlatformLibrary sample code for examples of doing all of this stuff -- writing a native library, a Java API to it with JNI, and client applications using the Java API.
http://android.git.kernel.org/?p=platform/development.git;a=tree;f=samples/PlatformLibrary On Sat, Jan 24, 2009 at 8:57 PM, kozak <c.a.subraman...@gmail.com> wrote: > > Hi Dianne, > Thank you for your reply. Sorry for the confusion. I did not intend to > develop native app using the Android SDK. I do understand that the SDK > does not support native code in applications. > > My intention is the following: > > I have downloaded the android source code from source.android.com . > I have built a kernel image and a rootfs using the CodeSorcery > toolchain. The basic image comes up. > > I would like to know if I can develop native libraries, for ex: > multimedia framework, or codecs that run on a DSP (I have a OMAP3 > hardware). And also to have JNI wrappers to have applications access > the multimedia framework APIs. > > Thanks in advance for your response. > > Regards > Kozak > > > On Jan 25, 2:06 am, Dianne Hackborn <hack...@android.com> wrote: > > This isn't a matter of the OHA all. The current Android SDK does not > > support applications with native code. Period. The only situation where > > native code is currently supported is for things that are built in to the > > system image of a device, because in that case the native code can be > > rebuilt each time the system changes to match that system and not break. > > > > > > > > On Sat, Jan 24, 2009 at 11:51 AM, kozak <c.a.subraman...@gmail.com> > wrote: > > > > > Hi Dianne, > > > > > Thanks for the input. I would like to know what kind of licensing as > > > of now allows 3rd party to develop native apps. Is it that only > > > members of OHA get to develop native apps "for now" and it would be > > > open to the open source community sometime in the future? > > > > > Tersely put, what should a one (individual/company) do to develop > > > native apps? > > > > > 1. Become an OHA member? > > > 2. Any other alternative? > > > > > Thanks in advance > > > Kozak > > > > > On Jan 23, 4:54 am, Dianne Hackborn <hack...@android.com> wrote: > > > > On Fri, Dec 26, 2008 at 8:43 PM, venu <vjosy...@gmail.com> wrote: > > > > > 1. Can I have anroid w/o the davlick vm, application framework, and > > > APIS ? > > > > > > You can take Linux + whatever user space libraries you want, but I > > > > personally I wouldn't call this "Android" any more. > > > > > > > 2. The motivation here is write custom applications on top > libraries > > > > > provided by anriod platform ? In others words, I want to strip of > java > > > > > virtual m/c, application framework and use anroid ? > > > > > > That isn't Android. A lot of what makes Android what it is the Java > > > code, > > > > which implements everything from window management and application > and > > > > process management to the user-space view hierarchy and other client > > > > frameworks. > > > > > > > 3. Does Anroid platform have a shell which comes up once we boot on > > > > > the target can be used to run applications (strictly for debugging > > > > > purposes) ? > > > > > > Use adb for this. > > > > > > > 4. Motivation here is to use either c++ or c language for > development > > > > > of applications.... > > > > > > Android applications at this point must include some Java code to > > > interact > > > > with the rest of the system. If (and only if) you are writing an app > > > that > > > > will be shipped on a device, you can use JNI for its Java code to > call > > > some > > > > native code that implements significant parts of the app. But > eventually > > > > there needs to be Java code to interact with the activity manager, > window > > > > manager, etc. > > > > > > And of course right now native code in third party apps is NOT > supported, > > > so > > > > those have to be all Java. > > > > > > -- > > > > Dianne Hackborn > > > > Android framework engineer > > > > hack...@android.com > > > > > > Note: please don't send private questions to me, as I don't have time > to > > > > provide private support. All such questions should be posted on > public > > > > forums, where I and others can see and answer them. > > > > -- > > Dianne Hackborn > > Android framework engineer > > hack...@android.com > > > > Note: please don't send private questions to me, as I don't have time to > > provide private support. All such questions should be posted on public > > forums, where I and others can see and answer them. > > > -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support. All such questions should be posted on public forums, where I and others can see and answer them. --~--~---------~--~----~------------~-------~--~----~ unsubscribe: android-porting+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-porting -~----------~----~----~----~------~----~------~--~---
