How to load jni from sd card on android 2.1?

Posted by user263423 on Stack Overflow See other posts from Stack Overflow or by user263423
Published on 2010-05-13T11:40:50Z Indexed on 2010/05/13 11:44 UTC
Read the original article Hit count: 215

Filed under:

android

|

jni

|

native-code

I want to load third-party jni library in runtime.
I've tried to load directly from sdcard. It expectedly failed.
I've tried to copy library from sdcard to /data/data/app/ and then
System.load(/data/data/libjni.so)
It works on HTC HERO, but fails on HTC Legend with Android 2.1. it fails during execution of native code and write to log uninformative stack trace Any other way to do it?

© Stack Overflow or respective owner

Related posts about android

Please verify my layout: bottom button keeps coming up over keyboard

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi everyone, I have a layout which does almost what I want. There's just one bug regarding the button at the bottom. I should stay at the bottom at all times. But whenever I bring up the soft-keyboard the button will be displayed above the keyboard. This is not what I want but it should become covered… >>> More
Android programming. Application stopped unexpectedly.

as seen on Stack Overflow - Search for 'Stack Overflow'
I've just created a prototype of interface for my android app and tried to run it. Unfortunately I get an error that my app has stopped unexpectedly (my reputation doesn't allow me to post images so follow my links): screenshot of error message This is layout mode of editing. Everything looks as… >>> More
Listview Row Overlap Problem

as seen on Stack Overflow - Search for 'Stack Overflow'
I just updated my app and I am getting some odd complaints from people who update it. I am only getting complaints from people with non-stock android phones (phones that manufacturers have modified...HTC phones, cliq, pulse, etc), other phones like the Droid, Nexus work fine. My app (Photo Frame Deluxe)… >>> More
Why are some of my view not aligned correctly at the bottom of my relative layout?

as seen on Stack Overflow - Search for 'Stack Overflow'
I have problems getting some of my views aligned in a relative layout that I use inside a row of my listview. Here is a screenshot from the layout builder in Eclipse, this is what I think it should look like: The next image is from the emulator. Now the TestTestTest View is at the top and covers… >>> More
Android RatingBar weirdness: Whenever I add a RatingBar to my layout, a bunch of the generated tags,

as seen on Stack Overflow - Search for 'Stack Overflow'
Whenever I use a RatingBar view in my layout, I suddenly get all kinds of compile errors. I'm using Android 2.0, but I've also tried 2.0.1, and 2.1, without joy. I also get a message: Shader 'android.graphics.BitmapShader' is not supported in Layout Editor, and an odd warning which may or maynot be… >>> More

Related posts about jni

Implement JNI listener.

as seen on Stack Overflow - Search for 'Stack Overflow'
I have the following code in a c++ "listener class" (more or less), which calls some function of a Java object. I suspect there's a memory leak: JNIEnv *env = NULL; vm_->AttachCurrentThread(&env, NULL); const jclass cls = env->FindClass(...); const jmethodID meth = env->GetMethodID(… >>> More
JNI, cast between jobect and jthrowable

as seen on Stack Overflow - Search for 'Stack Overflow'
Dear colleagues, I need raise an exception from C++ code. Raised exception must contain text and code of error. So common form: ThrowNew(jclass clazz, const char *msg) is not applicable. That is why I want create my own instance of java class: public class MyException extends Exception that… >>> More
Forcing the GC to collect JNI proxy objects

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi. While I do my best to clean JNI objects to free native memory in the end of the usage, there are still some that hang around for a long time, wasting system native memory. Is there any way to force the GC to give priority in collection of these JNI proxies? I mean is there a way to cause GC… >>> More
JNI loses reference to native methods

as seen on Stack Overflow - Search for 'Stack Overflow'
As an example for later use in Android I wrote a simple callback interface. While doing so i ran into the following error or bug or whatever. In C the two commented lines are supposed to be executed resulting in calling the C callback onChange. But instead i get an UnsatisfiedLinkError. Calling the… >>> More
Using Fantom USB Driver from JNI

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm having some difficulty with JNI. I'm using JNI to call some Java methods from a C++ program. This implementation of JNI is working fine. The goal of the Java program is to send commands over USB to a LEGO robot using LEJOS. This works fine when running the Java program by itself but for some… >>> More