首先要确认我浏览了所有类似的主题，发现没有什么可以解决我的问题。当我想在我的手机上运行应用程序时，它会抛出UnsatisfiedLinkError并且找不到int org.libsdl.app.SDLActivity.nativeSetupJNI（）的实现。
04-28 16:56:13.081 17793 17793 E art : No implementation found for int org.etlegacy.app.SDLActivity.nativeSetupJNI() (tried Java_org_etlegacy_app_SDLActivity_nativeSetupJNI and Java_org_etlegacy_app_SDLActivity_nativeSetupJNI__)
04-28 16:56:13.082 17793 17793 D AndroidRuntime: Shutting down VM
04-28 16:56:13.082 17793 17793 E AndroidRuntime: FATAL EXCEPTION: main
04-28 16:56:13.082 17793 17793 E AndroidRuntime: Process: org.etlegacy.app, PID: 17793
04-28 16:56:13.082 17793 17793 E AndroidRuntime: java.lang.UnsatisfiedLinkError: No implementation found for int org.etlegacy.app.SDLActivity.nativeSetupJNI() (tried Java_org_etlegacy_app_SDLActivity_nativeSetupJNI and Java_org_etlegacy_app_SDLActivity_nativeSetupJNI__)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at org.etlegacy.app.SDLActivity.nativeSetupJNI(Native Method)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at org.etlegacy.app.SDL.setupJNI(SDL.java:15)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at org.etlegacy.app.SDLActivity.onCreate(SDLActivity.java:234)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at android.app.Activity.performCreate(Activity.java:6857)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2676)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2784)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at android.app.ActivityThread.-wrap12(ActivityThread.java)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1523)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:102)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at android.os.Looper.loop(Looper.java:163)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:6238)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
04-28 16:56:13.082 17793 17793 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)
04-28 16:56:13.091 3424 3645 D PowerKeeper.Event: notifyAMCrash packageName: 0, pid:17793
一直试图添加JNIEXPORT和JNICALL而没有运气。我将提供3个不同文件的一些代码。
sys.android.c
#include "jni.h"
/*******************************************************************************
Functions called by JNI
*******************************************************************************/
/* Start up the ET Legacy app */
JNIEXPORT void JNICALL Java_org_etlegacy_app_SDLActivity_nativeInit(JNIEnv *env, jobject obj)
{
Android_JNI_SetupThread();
SDL_SetMainReady();
/* Run the application code! */
char *argv[2];
argv[0] = SDL_strdup("ET Legacy");
// send r_fullscreen 0 with argv[1] because on fullscreen can cause some issues see: https://github.com/rafal1137/android-project/commit/d960cc244b17d8cc0d084f9c8dad9c1af4b2ba72#diff-b9bd293cfb066fe80c10d3fcdd0fd6cbL439
argv[1] = 0;
SDL_main(1, argv);
}
sys_main.c
/**
* @brief SDL_main
* @param[in] argc
* @param[in] argv
* @return
*/
int main(int argc, char **argv)
{
char commandLine[MAX_STRING_CHARS] = { 0 };
Sys_PlatformInit();
// Set the initial time base
Sys_Milliseconds();
#ifdef __APPLE__
// This is passed if we are launched by double-clicking
if (argc >= 2 && Q_strncmp(argv[1], "-psn", 4) == 0)
{
argc = 1;
}
#endif
Sys_ParseArgs(argc, argv);
#if defined(__APPLE__) && !defined(DEDICATED)
// argv[0] would be /Users/seth/etlegacy/etl.app/Contents/MacOS
// But on OS X we want to pretend the binary path is the .app's parent
// So that way the base folder is right next to the .app allowing
{
char parentdir[1024];
CFURLRef url = CFBundleCopyBundleURL(CFBundleGetMainBundle());
if (!url)
{
Sys_Dialog(DT_ERROR, "A CFURL for the app bundle could not be found.", "Can't set Sys_SetBinaryPath");
Sys_Exit(EXIT_FAILURE);
}
CFURLRef url2 = CFURLCreateCopyDeletingLastPathComponent(0, url);
if (!url2 || !CFURLGetFileSystemRepresentation(url2, 1, (UInt8 *)parentdir, 1024))
{
Sys_Dialog(DT_ERROR, "CFURLGetFileSystemRepresentation returned an error when finding the app bundle's parent directory.", "Can't set Sys_SetBinaryPath");
Sys_Exit(EXIT_FAILURE);
}
Sys_SetBinaryPath(parentdir);
CFRelease(url);
CFRelease(url2);
}
#else
Sys_SetBinaryPath(Sys_Dirname(argv[0]));
#endif
Sys_SetDefaultInstallPath(DEFAULT_BASEDIR); // Sys_BinaryPath() by default
// Concatenate the command line for passing to Com_Init
Sys_BuildCommandLine(argc, argv, commandLine, sizeof(commandLine));
Com_Init(commandLine);
NET_Init();
Sys_SetUpConsoleAndSignals();
#ifdef _WIN32
#ifndef DEDICATED
if (com_viewlog->integer)
{
Sys_ShowConsoleWindow(1, qfalse);
}
#endif
Sys_Splash(qfalse);
{
char cwd[MAX_OSPATH];
_getcwd(cwd, sizeof(cwd));
Com_Printf("Working directory: %s\n", cwd);
}
// hide the early console since we've reached the point where we
// have a working graphics subsystems
#ifndef LEGACY_DEBUG
if (!com_dedicated->integer && !com_viewlog->integer)
{
Sys_ShowConsoleWindow(0, qfalse);
}
#endif
#endif
Sys_GameLoop();
return EXIT_SUCCESS;
}
SDL activity.Java
protected String[] getLibraries() {
return new String[] {
"SDL2",
"hidapi",
"etl"
};
}
我应该删除SDL_main（1，argv）;从sys_android.c文件，所以它可以从sys_main.c中选择正确的一个？
问题似乎是函数名称中的拼写错误一个是Java_org_etlegacy_app_SDLActivity_nativeSetupJNI（）