Hey,
hmmm, I do not think so. I just want to know how to call a Java method
from C without having the jobject. Can I cache it when I previously
got it as parameter?
On 16 Jan., 09:11, FrankG <frankgru...@googlemail.com> wrote:
> Hello !
>
> It seems for me, that your question is not really ndk and android
> related,
> instead more or less something related to Reflection and the Dynamic
> Invocation API.
>
> Good luck ! Frank
>
> On 13 Jan., 11:11, M J <fakeacc...@googlemail.com> wrote:
>
>
>
>
>
>
>
> > Hey guys,
>
> > I nned your help. I am currently developing an application which uses
> > JNI and native sockets. The problem is that I have to call Java code
> > if some packages arrive on the native socket connection. Currently I
> > am using CallVoidMethod to do that. The JNIEnv cannot be cached so I
> > get it like this:
>
> > inline JNIEnv *get_env()
> > {
> > JNIEnv *env;
> > jvm->GetEnv((void **)&env, JNI_VERSION_1_4);
> > return env;
>
> > }
>
> > The jmethodID I is cached and initialized on startup. My only problem
> > now is, how can I get the jobject? Currently I am making a global
> > reference on the parameter jobject thiz, which is passed to my init
> > function.
>
> > Is this okay? I am asking because I am having some trouble with that,
> > eg. the reference to the local and the global obj are exactly the
> > same. And when I a call DeleteGlobalRef on the global reference there
> > is a warning in the log cat output that this reference does not exist
> > and the app crashes.
>
> > I also tried using the local reference but then the CallVoidMethod
> > crashes and the output says this reference does not exist, so I think
> > I am on the right way.
>
> > Thanks in advance!
--
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
