qt for android + opencv的配置及使用

1：下载opencv for android

网址：https://opencv.org/releases.html

下载android的包

2：下载后解压，放到一个英文的路径里，路径里不要带中文和空格。

3：新建qt项目，在pro文件里添加库

unix {

ANDROID_OPENCV = E:/ku/opencv-4.0.1-android-sdk/OpenCV-android-sdk/sdk/native


INCLUDEPATH += $$ANDROID_OPENCV/jni/include/opencv2 \
               $$ANDROID_OPENCV/jni/include

LIBS += $$ANDROID_OPENCV/staticlibs/armeabi-v7a/libopencv_calib3d.a \
        $$ANDROID_OPENCV/staticlibs/armeabi-v7a/libopencv_core.a \
        $$ANDROID_OPENCV/staticlibs/armeabi-v7a/libopencv_dnn.a \
        $$ANDROID_OPENCV/staticlibs/armeabi-v7a/libopencv_features2d.a \
        $$ANDROID_OPENCV/staticlibs/armeabi-v7a/libopencv_flann.a \
        $$ANDROID_OPENCV/staticlibs/armeabi-v7a/libopencv_highgui.a \
        $$ANDROID_OPENCV/staticlibs/armeabi-v7a/libopencv_imgcodecs.a \
        $$ANDROID_OPENCV/staticlibs/armeabi-v7a/libopencv_imgproc.a \
        $$ANDROID_OPENCV/staticlibs/armeabi-v7a/libopencv_ml.a \
        $$ANDROID_OPENCV/staticlibs/armeabi-v7a/libopencv_objdetect.a \
        $$ANDROID_OPENCV/staticlibs/armeabi-v7a/libopencv_photo.a \
        $$ANDROID_OPENCV/staticlibs/armeabi-v7a/libopencv_stitching.a \
        $$ANDROID_OPENCV/staticlibs/armeabi-v7a/libopencv_video.a \
        $$ANDROID_OPENCV/staticlibs/armeabi-v7a/libopencv_videoio.a \
        $$ANDROID_OPENCV/3rdparty/libs/armeabi-v7a/libcpufeatures.a \
        $$ANDROID_OPENCV/3rdparty/libs/armeabi-v7a/libIlmImf.a \
        $$ANDROID_OPENCV/3rdparty/libs/armeabi-v7a/liblibjasper.a \
        $$ANDROID_OPENCV/3rdparty/libs/armeabi-v7a/liblibjpeg-turbo.a \
        $$ANDROID_OPENCV/3rdparty/libs/armeabi-v7a/liblibpng.a \
        $$ANDROID_OPENCV/3rdparty/libs/armeabi-v7a/liblibprotobuf.a \
        $$ANDROID_OPENCV/3rdparty/libs/armeabi-v7a/liblibtiff.a \
        $$ANDROID_OPENCV/3rdparty/libs/armeabi-v7a/liblibwebp.a \
        $$ANDROID_OPENCV/3rdparty/libs/armeabi-v7a/libquirc.a \
        $$ANDROID_OPENCV/3rdparty/libs/armeabi-v7a/libtbb.a \
        $$ANDROID_OPENCV/3rdparty/libs/armeabi-v7a/libtegra_hal.a \
        $$ANDROID_OPENCV/libs/armeabi-v7a/libopencv_java4.so




}

   4：最后一个库libopencv_java4.so是动态库，要加入到安卓的apk里。按照顺序将动态库加入进去。

5：正常编写opencv的代码即可。