Adding Box2d library
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Hey,
I wanted to work with this library:
https://github.com/qml-box2d/qml-box2d(At first I want to admit I'm from Java and I'm not god of using libraries in Qt)
I created my own project and added some files from "examples" in lib github. It required adding:
import Box2D 2.0and I managed to run project on Desktop. However when I tried to launch it in Android/iOS device, the app crashed at start.
I have Android stacktrace:
Starting remote process.I art : Late-enabling -Xcheck:jni I art : Background sticky concurrent mark sweep GC freed 38874(2MB) AllocSpace objects, 0(0B) LOS objects, 43% free, 14MB/25MB, paused 6.088ms total 47.402ms W System : ClassLoader referenced unknown path: W linker : /data/app/org.qtproject.example.dobot_qt-2/lib/arm/libQt5Network.so: unused DT entry: type 0xf arg 0x119c9 W linker : /data/app/org.qtproject.example.dobot_qt-2/lib/arm/libQt5Network.so: unsupported flags DT_FLAGS_1=0x81 W linker : /data/app/org.qtproject.example.dobot_qt-2/lib/arm/libQt5Qml.so: unused DT entry: type 0xf arg 0x33c4c W linker : /data/app/org.qtproject.example.dobot_qt-2/lib/arm/libQt5Qml.so: unsupported flags DT_FLAGS_1=0x81 W linker : /data/app/org.qtproject.example.dobot_qt-2/lib/arm/libQt5Gui.so: unused DT entry: type 0xf arg 0x5042f W linker : /data/app/org.qtproject.example.dobot_qt-2/lib/arm/libQt5Gui.so: unsupported flags DT_FLAGS_1=0x81 W linker : /data/app/org.qtproject.example.dobot_qt-2/lib/arm/libQt5Quick.so: unused DT entry: type 0xf arg 0x3d1ac W linker : /data/app/org.qtproject.example.dobot_qt-2/lib/arm/libQt5Quick.so: unsupported flags DT_FLAGS_1=0x81 W linker : /data/app/org.qtproject.example.dobot_qt-2/lib/arm/libQt5Widgets.so: unused DT entry: type 0xf arg 0x6b3d9 W linker : /data/app/org.qtproject.example.dobot_qt-2/lib/arm/libQt5Widgets.so: unsupported flags DT_FLAGS_1=0x81 W linker : /data/app/org.qtproject.example.dobot_qt-2/lib/arm/libQt5QuickParticles.so: unused DT entry: type 0xf arg 0x365b W linker : /data/app/org.qtproject.example.dobot_qt-2/lib/arm/libQt5QuickParticles.so: unsupported flags DT_FLAGS_1=0x81 W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/plugins/platforms/android/libqtforandroid.so: unused DT entry: type 0xf arg 0x9260 W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/plugins/platforms/android/libqtforandroid.so: unsupported flags DT_FLAGS_1=0x81 W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/plugins/platforms/android/libqtforandroid.so: is missing DT_SONAME will use basename as a replacement: "libqtforandroid.so" I Qt : qt start W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/plugins/bearer/libqandroidbearer.so: unused DT entry: type 0xf arg 0x1746 W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/plugins/bearer/libqandroidbearer.so: unsupported flags DT_FLAGS_1=0x81 W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/plugins/bearer/libqandroidbearer.so: is missing DT_SONAME will use basename as a replacement: "libqandroidbearer.so" W linker : /data/app/org.qtproject.example.dobot_qt-2/lib/arm/libdobot-qt.so: unused DT entry: type 0x1d arg 0x514 D : (null):0 ((null)): QML debugging is enabled. Only use this in a safe environment. D OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true I Adreno-EGL: <qeglDrvAPI_eglInitialize:379>: QUALCOMM Build: 10/21/15, 369a2ea, I96aee987eb I OpenGLRenderer: Initialized EGL, version 1.4 W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/qml/QtQuick.2/libqtquick2plugin.so: unused DT entry: type 0xf arg 0x4bd W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/qml/QtQuick.2/libqtquick2plugin.so: unsupported flags DT_FLAGS_1=0x81 W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/qml/QtQuick.2/libqtquick2plugin.so: is missing DT_SONAME will use basename as a replacement: "libqtquick2plugin.so" W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/qml/QtQuick/Controls/libqtquickcontrolsplugin.so: unused DT entry: type 0xf arg 0x41bf W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/qml/QtQuick/Controls/libqtquickcontrolsplugin.so: unsupported flags DT_FLAGS_1=0x81 W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/qml/QtQuick/Controls/libqtquickcontrolsplugin.so: is missing DT_SONAME will use basename as a replacement: "libqtquickcontrolsplugin.so" W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/qml/QtQuick/Dialogs/libdialogplugin.so: unused DT entry: type 0xf arg 0x249b W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/qml/QtQuick/Dialogs/libdialogplugin.so: unsupported flags DT_FLAGS_1=0x81 W linker : /data/data/org.qtproject.example.dobot_qt/qt-reserved-files/qml/QtQuick/Dialogs/libdialogplugin.so: is missing DT_SONAME will use basename as a replacement: "libdialogplugin.so" W libdobot-qt.so: (null):0 ((null)): QQmlApplicationEngine failed to load component W libdobot-qt.so: (null):0 ((null)): qrc:/main.qml:4 module "Box2D" is not installed 03-20 17:57:22.842 8672 8847 W libdobot-qt.so:So I guess the lib was not included in deployment for Android. How to fix it ? How to properly add this Box2d library/plugin ?
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Do you have Box2D compiled for Android?
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@jsulm How to achieve that ?
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Hi,
It's explained in the README.md:
qmake make make installUse the qmake matching your Android Qt installation.
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Ok, I did that earlier but only for Desktop. So now I ended up with these after make install:
install -m 755 -p libBox2D.so /libs/armeabi-v7a/libBox2D.so
install -m 644 -p /Users/adamstyrc/Desktop/git/qml-box2d4/qmldir /Users/adamstyrc/Qt/5.6/android_armv7/qml/Box2D.2.0/What should be proper next step ?
I tried to "Add Library"->external and add that /libs/armeabi-v7a/libBox2D.so file but then error is the same and also my import is not visible in code (QML module does not contain information about component plugin):
import Box2D 2.0
