libopencv_java3.在qt文件中

Question

我在Qt和OpenCV中制作Android应用程序。

它可以在桌面Linux上运行，但是在Android上运行失败:

D/dalvikvm( 8059): Trying to load lib /data/app-lib/com.myselfxyz.testapp-1/libTestApp.so 0x421b4f98
E/dalvikvm( 8059): dlopen("/data/app-lib/com.myselfxyz.testapp-1/libTestApp.so") failed: Cannot load library: soinfo_link_image(linker.cpp:1673): could not load library "libopencv_java3.so" needed by "libTestApp"; caused by load_library(linker.cpp:771): library "libopencv_java3.so" not found

在我的设备上部署应用程序后，文件libopencv_java3。因此位于libTestApp旁边。在/data/app-lib/com.myselfxyz中添加。testapp-1目录，所以我不知道，为什么不能找到它。

我用:

Android NDK r10e
• OpenCV-android-sdk 3.1.0
• Qt kit: armeabi-v7a (GCC 4.9, Qt 5.5.1)
• 我的手机是Android 4.2.2版本，但我认为这并不重要。

我的qt配置文件看起来像:

TEMPLATE = app
TARGET = TestApp
CONFIG += mobility c++11
MOBILITY += sensors
QT += qml quick widgets declarative sensors core multimedia
SOURCES += main.cpp 
    bridge.cpp 
    imageprocessor.cpp
INCLUDEPATH += /usr/lib/jvm/java-7-openjdk-i386/include 
    /usr/lib/jvm/java-7-openjdk-i386/include/linux 
linux:!android {
    INCLUDEPATH += /opt/OpenCV/include/
    LIBS += -L/opt/OpenCV/build/lib 
        -lopencv_core -lopencv_highgui -lopencv_imgproc -lopencv_videoio
}
android {
    QT += androidextras
    ANDROID_OPENCV = /opt/OpenCV-android-sdk/sdk/native
    INCLUDEPATH += $$ANDROID_OPENCV/jni/include
    ANDROID_PACKAGE_SOURCE_DIR = $$PWD/android
    LIBS += -L$$ANDROID_OPENCV/libs/armeabi-v7a 
        -L$$PWD/android/libs/armeabi-v7a 
        -L$$OUT_PWD 
        -lopencv_core -lopencv_features2d -lopencv_flann -lopencv_highgui -lopencv_imgcodecs -lopencv_imgproc -lopencv_ml -lopencv_objdetect 
        -lopencv_photo -lopencv_shape -lopencv_stitching -lopencv_superres -lopencv_ts -lopencv_video -lopencv_videoio -lopencv_videostab 
        -lopencv_java3
}
RESOURCES += qml.qrc
# Additional import path used to resolve QML modules in Qt Creator's code model
QML_IMPORT_PATH =
# Default rules for deployment.
include(deployment.pri)
HEADERS += 
    bridge.h 
    imageprocessor.h
DISTFILES += 
    android/AndroidManifest.xml 
    android/res/values/libs.xml 
    android/src/com/myselfxyz/testapp/JniExport.java 
    android/src/com/myselfxyz/testapp/TestApp.java
ANDROID_PACKAGE_SOURCE_DIR = $$PWD/android

Answer 1

这个答案假设您已经设法在没有opencv的情况下运行应用程序，因此所有其余的都相应地设置。

进入你的项目设置，找到"Build steps"

应该有一个叫做Build Android APK的步骤。点击Details。在Additional libraries列表中，添加libopencv_java3.so。通常在sdknativelibsarmeabi-v7a文件夹