有人可以幫助我找到我的錯誤,我看了看看我看起來似乎找不到它,我試圖運行我的代碼,但它不斷給我提示以下錯誤:java.lang.UnsatisfiedLinkError: Native method not found: nemo.lungu.receiptor.scanlibrary.ScanActivity.getPoints:(Landroid/graphics/Bitmap;)[F
是我的活動方法getPoints()
:java.lang.UnsatisfiedLinkError:在Android中找不到原生方法
public native float[] getPoints(Bitmap bitmap);
方法getPoints()
的頭版本:
JNIEXPORT jfloatArray JNICALL Java_nemo_lungu_receiptor_scanlibrary_ScanActivity_getPoints
(JNIEnv *, jobject, jobject);
終於方法getPoints()
在我.cpp
文件執行:
JNIEXPORT jfloatArray JNICALL Java_nemo_lungu_receiptor_scanlibrary_ScanActivity_getPoints
(JNIEnv *env, jobject thiz,jobject bitmap)
{
__android_log_print(ANDROID_LOG_VERBOSE, APPNAME, "Scaning getPoints");
int ret;
AndroidBitmapInfo info;
void* pixels = 0;
if ((ret = AndroidBitmap_getInfo(env, bitmap, &info)) < 0) {
__android_log_print(ANDROID_LOG_VERBOSE, APPNAME,"AndroidBitmap_getInfo() failed ! error=%d", ret);
return 0;
}
if (info.format != ANDROID_BITMAP_FORMAT_RGBA_8888)
{ __android_log_print(ANDROID_LOG_VERBOSE, APPNAME,"Bitmap format is not RGBA_8888!");
return 0;
}
if ((ret = AndroidBitmap_lockPixels(env, bitmap, &pixels)) < 0) {
__android_log_print(ANDROID_LOG_VERBOSE, APPNAME,"AndroidBitmap_lockPixels() failed ! error=%d", ret);
}
// init our output image
Mat mbgra(info.height, info.width, CV_8UC4, pixels);
vector<Point> img_pts = getPoints(mbgra);
jfloatArray jArray = env->NewFloatArray(8);
if (jArray != NULL)
{
jfloat *ptr = env->GetFloatArrayElements(jArray, NULL);
for (int i=0,j=i+4; j<8; i++,j++)
{
ptr[i] = img_pts[i].x;
ptr[j] = img_pts[i].y;
}
env->ReleaseFloatArrayElements(jArray, ptr, NULL);
}
AndroidBitmap_unlockPixels(env, bitmap);
return jArray;
}
AM加載庫,如:
static {
System.loadLibrary("myLibraryName");
}
這似乎因爲它給我的消息,以成功加載但再之後,它給了我另一條消息說No JNI_OnLoad found in /data/app-lib/nemo.lungu.receiptor-2/myLibraryName.so 0xa4fe5e78, skipping init
如此我不知道這是原因還是其他原因。