1. In general, we no need to change the native code (generally its big) and compiled and create the Static/ Shared library. (Android-NDK Bionic)
2. Next create JNI wrappers for all interfaces those are exposed to outside world from Native libs and generate another library. (Here JNI comes to picture). 3. Create a Android Application using JNI lib interfaces. Thanks On Jun 28, 4:38 pm, Padma <reachoutforpa...@gmail.com> wrote: > Hi Tamman, > > Thanks for ur reply. > > U wrote that "To compile any C application(customized lib is Bionic > which contains cross tool chains, set of header files fordifferent > libs etc.),we need NDK .. > > But JNI have its own syntax to write native code and to compile it. > Then Why NDK? > > I m afraid whether i have wrong understanding .If So,Plz clarify my > doubt . > > Thanks, > Padma > > Tammana wrote: > > JNI is generic concept, It is the way to integrate your Java programs > > with legacy C/C++ code, including the ability to embed a JVM within > > your native applications. Any Java application want to communicate > > with Native application through JNI. > > > NDK: This is Android specific. To compile any C application we need > > libc library. For Android they have customized C-library is Bionic. It > > also contains several cross tool chains, set of header files for > > different libs etc. > > > So if you want to compile any C/C++ application you need NDK. This > > native application you want to use in Android applications (Java > > level) you need JNI. > > > Any Android application(Java) will run in DVK. I guess DVK is also > > customized JVM for Android. If you create any native application which > > will run in native level not in DVK. > > > In general we have to create Native library and those need to use in > > Android Applications (Java) using JNI. It means this application will > > execute in DVK. If your native library create fork() and generate > > child process, this child process may not run in DVK. It may run in > > native level and DVK does not have any handle on it. > > > Thanks > > > On Jun 28, 1:51 pm, Padma <reachoutforpa...@gmail.com> wrote: > > > Hi all, > > > > Can somebody explain the basic difference between NDK & JNI. > > > Why Android uses NDK instead of JNI? > > > How NDK differs from JNI? > > > Can I use JNI in DVM instead of NDK?(is jni compatible with dvm) > > > > Kindly share some valuable info about NDK and JNI. > > > > Regards, > > > Padma -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel
