Question

当我尝试在我的机器中编译示例本机（cpp）代码时，我收到了这些错误。我试图在cygwin的NDK的帮助下编译本机代码。

我收到以下错误，我尝试添加LDFLAGS但仍然得到相同的错误 LOCAL_LDLIBS：= -llog

sh-4.1$ /cygdrive/c/Android/android-ndk-r6/ndk-build  
Compile++ thumb  : JNIExampleInterface <= JNIExampleInterface.cpp  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:5:44: error: android_runtime/AndroidRuntime.h: No such file or directory  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp: In function 'void callback_handler(char*)':  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:36: error: 'LOGE' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:51: error: 'LOGE' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:59: error: 'LOGE' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp: In function 'void Java_com_nativeexample_JNIExampleInteace_callVoid(JNIEnv*, _jclass*)':  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:88: error: 'LOGE' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp: In function '_jobject* Java_com_nativeexample_JNIExamplnterface_getNewData(JNIEnv*, _jclass*, jint, _jstring*)':  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:103: error: 'LOGE' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:110: error: 'LOGE' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:117: error: 'LOGE' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp: In function '_jstring* Java_com_nativeexample_JNIExamplnterface_getStringInData(JNIEnv*, _jclass*, _jobject*)':  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:135: error: 'LOGE' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:142: error: 'LOGE' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp: In function 'void initClassHelper(JNIEnv*, const char*,jobject**)':  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:163: error: 'LOGE' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:170: error: 'LOGE' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:177: error: 'LOGE' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp: In function 'jint JNI_OnLoad(JavaVM*, void*)':  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:193: error: 'LOGI' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:195: error: 'LOGE' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:221: error: 'android' has not been declared  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:222: error: 'NELEM' was not declared in this scope  
D:/EclipseWorkspace/NativeExample/jni/JNIExampleInterface.cpp:223: error: 'LOGE' was not declared in this scope  
make: *** [/cygdrive/d/EclipseWorkspace/NativeExample/obj/local/armeabi/objs/JNIExampleInterface/JNIExampleInterface.o  
Error 1  
sh-4.1$

我正在关注网络中的例子 http://android.wooyd.org/JNIExample/

如果我有什么不对，请纠正我。如果我的问题不完美或不可理解，请发表评论并给我一个纠正错误的机会。

谢谢＆amp;问候，
SSuman185

Answer 1

我只能使用以下声明来解决LOGE错误：

#define  LOG_TAG    "libJNIExInterface"  
#define  LOGI(...)  __android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__)  
#define  LOGE(...)  __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__)

在“android_log .....”之前出现双倍得分。

另一个错误是“NELEM”在android运行时注册本机函数不是必需的，但是只有当你有完整的android源代码时才可以完成，当你编译这个应用程序和android源码时代码，否则不可能）。

因此，当您没有完整的Android源代码时，Android运行时注册是不可能的，无论如何我的应用程序也正常工作。

Answer 2

万一有人还有这个问题：

日志记录宏已重命名，现在为ALOGE。

NDK中的此范围错误未声明获取“LOGE”

2 个答案: