Question

我想使用tow extern库来构建跟踪对象的android应用程序和冲浪算法，所以我使用了这个教程Using OpenCV Nonfree Module (SIFT, SURF) in Android NDK Projects

第一个库是libobjtrack_opencv_jni.so（用于跟踪）另外两个是libopencv_java.so和libobjtrack_opencv_jni.so 我结束了得到这个结果：

Android.mk：

LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE    := sift_prebuilt
LOCAL_SRC_FILES := libnonfree.so
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE    := opencv_java_prebuilt
LOCAL_SRC_FILES := libopencv_java.so
include $(PREBUILT_SHARED_LIBRARY)


include $(CLEAR_VARS)
LOCAL_MODULE    := objtrack_opencv_jni
LOCAL_SRC_FILES := libobjtrack_opencv_jni.so
include $(PREBUILT_SHARED_LIBRARY)
include $(CLEAR_VARS)
OPENCV_LIB_TYPE        := STATIC
OPENCV_INSTALL_MODULES:=on
OPENCV_CAMERA_MODULES:=off
include C:/OpenCV-2.4.5-android-sdk/sdk/native/jni/OpenCV.mk
LOCAL_C_INCLUDES:= C:/OpenCV-2.4.5-android-sdk/sdk/native/jni/include
LOCAL_MODULE    := test_sift12
LOCAL_CFLAGS    := -Werror -O3 -ffast-math
LOCAL_LDLIBS    += -llog -ldl
LOCAL_SHARED_LIBRARIES := sift_prebuilt opencv_java_prebuilt objtrack_opencv_jni
LOCAL_SRC_FILES := test_sift.cpp
include $(BUILD_SHARED_LIBRARY)

构建成功了，我得到了test_sift12.so，但是当我运行.apk时却无法工作..我认为问题在于PREBUILT_SHARED_LIBRARY中使用android.mk档案。我需要你的帮助

Answer 1

加载库，您希望在活动中使用该库。

就像这样

public class YourClassName extends Activity {

.....

//add the following code at the end of the class


  static 
  {
      System.loadlibrary("opencv_java");
      System.loadlibrary("objtrack_opencv_jni");
      System.loadlibrary("nonfree");
      System.loadlibrary("test_sift12");
   }
}

我建议你改变以下的名字

LOCAL_MODULE    := sift_prebuilt

到

LOCAL_MODULE    := nonfree

和

LOCAL_MODULE    := opencv_java_prebuilt

到

LOCAL_MODULE    := opencv_java

请记住，不要忘记修改LOCAL_SHARED_LIBRARIES

中的名称

如何包含许多共享库.so来构建android apk

1 个答案: