native

问题 for bytecode instrumentation in java, there is the asm framework and the bcel and javaassist libraries. However I need to do instrumentation in native code, since some java classes are already loaded by the time the javaagent runs, eg java.lang.Thread, java.lang.Class, etc is there any library for instrumenting java classes in native code? Edit: Seems there is a bit of confusion. What I want is: Create a native java agent, which uses JVMTI apis to change the bytecode of a class while its

问题 i have an android app which spawns many native executables dinamically linked with libraries i distribute with the package. To launch those binaries, i use the LD_LIBRARY_PATH environment variable to make them aware of the place to load the libraries from, but on some devices this doesn't work at all, the LD_LIBRARY_PATH is correctly updated but the binary fails to find the library anyway. This is not something i can reproduce because on my two devices ( Galaxy Nexus & Nexus 7 with stock roms

问题 I have an app on the Play Store, it has an IntentService that does some work when the app starts, and it's causing native crashes on Android 5.0. This service just scans the assets folder for app updating purposes. Specifically, this crash seems to happen on Samsung S5 after the ugrade to Lollipop, but I don't know if it's strictly related to that device, as it's an Italian app and here that's still the only widely diffuse (i.e. that I know of) device that's getting Lollipop. However, I tried

问题 I failed to debug the native program with NDK toolchain. Follows are my detailed steps and output. Env Setting: NDK_ROOT=/opt/android/ndk SYSROOT=$NDK_ROOT/platforms/android-8/arch-arm TOOLCHAIN=$NDK_ROOT/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin PATH=$TOOLCHAIN:$NDK_ROOT:$PATH Source: hello.c 1 #include <stdio.h> 2 3 int main() { 4 printf("Hello World!\n"); 5 return 0; 6 } Build by the standalone toolchain provied by NDK. #arm-linux-androideabi-gcc -g hello.c -o hello -

问题 Weeks of searching and worked on a few guides to convert my existing hosted PHP/MYSQL website to Native IOS/Android Apps. So far no good result. Tried Phonegap and Cordova too. Searches from the past years back to 2009 stated it is not possible. Is it possible now? Can share a complete guide or e-book for it? The app will be just a direct link to my php website. The app is actually acting like a browser. This is my very first app. http://tech.sarathdr.com/featured/steps-to-convert-a-web-app

问题 SetThreadName does not set thread name with Visual Studio 2005, when used as below: DWORD threadId; HANDLE handle = CreateThread(NULL, stackSize, ThreadFunction, ThreadParam, CREATE_SUSPENDED, &threadId); if (handle) { SetThreadName(threadId, "NiceName"); ResumeThread(handle); } After opening the Threads window, instead of NiceName I can see the name of the ThreadFunction there. Other tools (like Intel Parallel Inspector) use NiceName as expected. Is something wrong with the code above? Does

问题 I am trying to write an android applications witch calculates keypoints and descriptors using opencv and store them. However i am getting troubles with cv:FileStorage. I am actually passing the file path throw native methods. The same path (different file ending) is also used to store another file on the javaside. JNIEXPORT void JNICALL Java_com_..._CalcFeatures(JNIEnv* env, jobject, jlong addrGray, jstring location){ ... const char *nativeString = env->GetStringUTFChars(location, NULL);

问题 I want to develop a small utility for windows and I prefer doing that in c# because it is easier (I'm a java developer). The utility will be available for download by many people and I assume some of them will not have the .net framework installed (is this assumption correct, say I target win xp and above?) My question is: can a c# application be compiled in a way that it will not require the .net framework installed? 回答1: Normally, you will need the .NET Framework being installed on the

问题 I am currently developing a React Native application, and some of our users might have slight vision problems. We wish to prevent the setting "Display Size" in Android, as this makes our app unusable. We solved the problem with the Font Size using the simple line: Text.defaultProps.allowFontScaling=false; Is there a similar solution to the Display Size setting? Thanks in advance 回答1: You can control using flex property in view. Use to below to the parent view and adjust the flex value from 0

问题 Am I doing this right? I get a pointer to a native array and need to copy to a managed array. Use memcpy() with a pin_ptr. unsigned char* pArray; unsigned int arrayCount; // get pArray & arrayCount (from a COM method) ManagedClass->ByteArray = gcnew array<Byte,1>(arrayCount) pin_ptr<System::Byte> pinPtrArray = &ManagedClass->ByteArray[0]; memcpy_s(pinPtrArray, arrayCount, pArray, arrayCount); arrayCount is the actual length of pArray, so not really worried about that aspect. Looked at the