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我想创建一个 QT 小部件 (C++) 并使用 OpenCV 库 (C++) 并将其部署到 Android。
我已经安装了 QT for Android 和 http://qt-project.org/doc/qt-5/androidgs.html 中提到的必要文件例如 NDK、SDK 等。mingw 编译器包含在 QT for Android 中，因此我不必再次安装它。
我可以毫无问题地将 QT 小部件部署到 android。问题是在 QT 小部件中使用 OpenCV 库，然后部署它。
我尝试了两种方法在我的 QT 项目中使用 OpenCV:
由于 QT for Android 附带 mingw 编译器，我使用 CMake 和 mingw 编译器从源代码编译了 OpenCV 库。然后我在 QT 的项目文件中包含了头文件并链接了库。此选项不起作用。我已经习惯了这种包含的方法，也想以同样的方式使用其他库，例如 Boost 和 Eigen。
我已经下载了 OPENCV android SDK 并包含了它的头文件，并将它的库链接到 QT 的项目文件中。这仍然没有奏效。
基本上我只想用 C++ 编写代码，因此使用小部件而不是 qtquick(qml)。请告诉我以上步骤中哪些(如果有的话)是正确的以及我必须进行哪些更改。
另一方面，有谁知道我可以如何加速模拟器，我有一个 AMD 处理器，所以不能利用英特尔工具。我在哪里可以获得三星 Note 4 的 AVD 设置？
非常感谢!!
选项 1 的项目文件:
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = test3
TEMPLATE = app
LIBS+= C:\programs\opencv\RELEASE\lib\\\*
INCLUDEPATH+= C:\programs\opencv\RELEASE\install\include\
SOURCES += main.cpp\
mainwindow.cpp
HEADERS += mainwindow.h
FORMS += mainwindow.ui
CONFIG += mobility
MOBILITY =
选项 1 的错误:
12:18:17: Starting: "C:\programs\QT\Tools\mingw482_32\bin\mingw32-make.exe"
C:\programs\QT\5.3\android_armv7\bin\qmake.exe -spec android-g++ CONFIG+=debug -o Makefile ..\test3\test3.pro
The system cannot find the path specified.
C:\programs\android-ndk-r10c/toolchains/arm-linux-androideabi-4.9/prebuilt/windows/bin/arm-linux-androideabi-g++ --sysroot=C:\programs\android-ndk-r10c/platforms/android-9/arch-arm/ -Wl,-soname,libtest3.so -Wl,--no-undefined -Wl,-z,noexecstack -shared -o libtest3.so main.obj mainwindow.obj moc_mainwindow.obj -LC:\programs\android-ndk-r10c/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi-v7a -LC:\programs\android-ndk-r10c/platforms/android-9/arch-arm//usr/lib C:\programs\opencv\RELEASE\lib\\* -LC:/programs/QT/5.3/android_armv7/lib -lQt5Widgets -Lc:\Utils\android\ndk/sources/cxx-stl/gnu-libstdc++/4.8/libs/armeabi-v7a -Lc:\Utils\android\ndk/platforms/android-9/arch-arm//usr/lib -LC:\Utils\icu32_51_1_mingw482\lib -LC:\utils\postgresql\pgsql\lib -LC:\utils\mysql\mysql\lib -LC:\Utils\pgsql\lib -LC:\temp\opensll-android-master\openssl-android-master\lib -LC:\programs\QT\5.3\android_armv7/lib -lQt5Gui -lQt5Core -lGLESv2 -lgnustl_shared -llog -lz -lm -ldl -lc -lgcc
..\..\opencv\RELEASE\install\include/opencv2/core/mat.hpp:278: error: undefined reference to 'cv::fastFree(void*)'
..\..\opencv\RELEASE\install\include/opencv2/core/mat.hpp:298: error: undefined reference to 'cv::Mat::copySize(cv::Mat const&)'
..\..\opencv\RELEASE\install\include/opencv2/core/mat.hpp:367: error: undefined reference to 'cv::Mat::deallocate()'
..\test3/main.cpp:23: error: undefined reference to 'cv::imread(std::string const&, int)'
..\test3/main.cpp:31: error: undefined reference to 'cv::namedWindow(std::string const&, int)'
..\test3/main.cpp:32: error: undefined reference to 'cv::_InputArray::_InputArray(cv::Mat const&)'
Makefile:82: recipe for target 'libtest3.so' failed
..\test3/main.cpp:32: error: undefined reference to 'cv::imshow(std::string const&, cv::_InputArray const&)'
..\test3/main.cpp:34: error: undefined reference to 'cv::waitKey(int)'
collect2.exe: error: ld returned 1 exit status
mingw32-make: *** [libtest3.so] Error 1
12:18:22: The process "C:\programs\QT\Tools\mingw482_32\bin\mingw32-make.exe" exited with code 2.
Error while building/deploying project test3 (kit: Android for armeabi-v7a (GCC 4.9, Qt 5.3.2))
When executing step "Make"
12:18:22: Elapsed time: 00:04.
选项 2 的项目文件:
#-------------------------------------------------
#
# Project created by QtCreator 2014-12-05T18:06:24
#
#-------------------------------------------------
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = test3
TEMPLATE = app
INCLUDEPATH+= C:\programs\opencvandroidsdk\sdk\native\jni\include
LIBS += -LC:\programs\opencvandroidsdk\sdk\native\libs\armeabi-v7a\
-lopencv_contrib \
-lopencv_legacy \
-lopencv_ml \
-lopencv_objdetect \
-lopencv_calib3d \
-lopencv_video \
-lopencv_features2d \
-lopencv_highgui \
-lopencv_androidcamera \
-lopencv_flann \
-lopencv_imgproc \
-lopencv_core
LIBS += -LC:\programs\opencvandroidsdk\sdk\native\3rdparty\libs\armeabi-v7a\
-llibjpeg \
-llibpng \
-llibtiff \
-llibjasper \
-ltbb \
-lIlmImf
SOURCES += main.cpp\
mainwindow.cpp
HEADERS += mainwindow.h
FORMS += mainwindow.ui
CONFIG += mobility
MOBILITY =
选项 2 的错误:
18:24:53: Running steps for project test3...
18:24:53: Configuration unchanged, skipping qmake step.
18:24:53: Starting: "C:\programs\QT\Tools\mingw482_32\bin\mingw32-make.exe"
mingw32-make: Nothing to be done for 'first'.
18:24:55: The process "C:\programs\QT\Tools\mingw482_32\bin\mingw32-make.exe" exited normally.
18:24:55: Starting: "C:\programs\QT\Tools\mingw482_32\bin\mingw32-make.exe" INSTALL_ROOT="C:\programs\QT projects\build-test3-Android_for_armeabi_v7a_GCC_4_9_Qt_5_3_2-Release\android-build" install
copy /y "libtest3.so" "C:\programs\QT projects\build-test3-Android_for_armeabi_v7a_GCC_4_9_Qt_5_3_2-Release\android-build\libs\armeabi-v7a\libtest3.so"
The system cannot find the path specified.
0 file(s) copied.
Makefile:1627: recipe for target 'install_target' failed
mingw32-make: [install_target] Error 1 (ignored)
18:24:57: The process "C:\programs\QT\Tools\mingw482_32\bin\mingw32-make.exe" exited normally.
Error while building/deploying project test3 (kit: Android for armeabi-v7a (GCC 4.9, Qt 5.3.2))
When executing step "Deploy to Android device"
18:27:00: Elapsed time: 02:07.