Jon, Any ideas on this please? I'm using the exact code you provided in the
previous posts.
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Hi Jon,
So using the above code that you posted is working for me, but the
constructor to my .java object is being called multiple times and is
producing some strange behavior. How many instances of my java object are
created with the above code? Is it calling my object constructor more than
once
Woo Hoo, thanks Jon! My problem was that I was calling YourJniHelper instead
of instantiating MyJniHelper. The callback is now received. Now how do I
convert that JavaArray cardData to something useful?
Thanks
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Jon,
First, thanks for all your help on this, its gotten me pretty far.
I used your code to call the jni_helper and initialize the reader; however,
the manged wrapper for the onReceiveMsgCardData() is never called. You were
right in assuming that the 'uniMagReader' instance calls the
onReceiveM
The resource I'm trying to get an ID for is an xml file located in the .Net
Resouces/raw folder. I tried this in the .java file to no avail.
int resourceID = getResources().getIdentifier("xmlFileName", "raw",
".Net.Package.Path");
Note: I've substituted the values in getIdentifier() with fake
I'm calling a .java file via JNI that is using a resource path via
R.path.resource. In regular java this works fine because R resolves to the
package. In MonoDroid this is not working because R does not resolve to the
MonoDroid package. I've tried replacing R in the .java file with the
MonoDroid p
Hi Jon,
Thanks for your help. Based on the exception info I was able to fix the
issues with the .java code and can now call the methods via JNI. I still
have the issue of the callback though. What happens in the .java code is
that when a hardware event occurs it fires the onReceiveMsgCardData() ev
Hi Jon,
An update to my previous post...
I looked into that sanity check code and updated my code based on it's
example.
IntPtr helperClass = JNIEnv.FindClass("MagHelper/jni_helper");
IntPtr ctor = JNIEnv.GetMethodID(helperClass, "", "()V");
IntPtr methodId = JNIEnv.GetMethodID(helperClass, "Ini
Hi Jon,
First, thank you for taking the time to create such it a detailed response,
it's greatly appreciated
Based on what you said, I've made the ctor public in the .java file.
I then changed my JNI code to this, but I get an error on the
JNIEnv.GetMethodID call.
IntPtr _helperClass = JNIE
I'm trying to implement a 3rd party jar file to read credit cards and I'm
having issues. All JNI examples I've found either return an activity or use
static methods and mine is not static and not really an activity I want to
show on the screen. I want to call these methods of this class via JNI
thr
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