[SOLVED] Problem with iOS app and QML Plugin.

shav · wrote on 15 Dec 2014, 22:29

Hi everyone!

I have a project with QML plugin. On desktop all works fine but when I try to build my application to iOS i've received this error:
@
Starting remote process.
QML debugging is enabled. Only use this in a safe environment.
QQmlApplicationEngine failed to load component
qrc:/qml/ios/main.qml:1 static plugin for module "QtQuick" with name "PicfectionSDKPlugin" has no metadata URI
@

My qmldir file looks like:
@
module com.shav.picfection
plugin PicfectionSDK
typeinfo Picfection.qmltypes
classname PicfectionSDKPlugin
@

My plugin was copied to:
@
<Qt_install_path>/ios/qml/com/shav/picfection
@

What I do wrong? Thanks for any help!

shav · wrote on 18 Dec 2014, 17:52

Hi everyone!

I still have problem with QtQuick Plugin on iOS. I've tried research but can't find any solution for this problem. Also I've tried examples but no lucky. Main class of my plugin looks like this:
@
class PicfectionSDKPlugin : public QQmlExtensionPlugin
{
Q_OBJECT

    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QQmlExtensionInterface")

public:
    void registerTypes(const char *uri);

};
@

Project file of my plugin looks like:
@
TEMPLATE = lib
TARGET = PicfectionSDK
QT += qml quick network
ios {
CONFIG += qt plugin c++11 static
}
else
{
CONFIG += qt plugin c++11
}

TARGET = $$qtLibraryTarget($$TARGET)
uri = com.shav.picfection

DESTDIR = com/shav/picfection
OBJECTS_DIR = tmp/objects
MOC_DIR = tmp/mocs

Input

SOURCES +=
picfectionsdk_plugin.cpp
picfectionmanager.cpp
Requests/picfectionnetworkmanager.cpp
Requests/picfectionrequest.cpp
Objects/Team/picfectionteam.cpp
Objects/Project/picfectionproject.cpp
Objects/Event/picfectionevent.cpp
Objects/Event/picfectioneventdatas.cpp
Objects/Event/picfectioneventdocument.cpp
Objects/Event/picfectioneventuser.cpp

HEADERS +=
picfectionsdk_plugin.h
picfectionmanager.h
Requests/picfectionnetworkmanager.h
Requests/picfectionrequest.h
Objects/Team/picfectionteam.h
Objects/Project/picfectionproject.h
Objects/Event/picfectionevent.h
Objects/Event/picfectioneventdatas.h
Objects/Event/picfectioneventdocument.h
Objects/Event/picfectioneventuser.h

DISTFILES = qmldir
picfectionsdk.json

!equals(PRO_FILE_PWD, $$OUT_PWD) {
copy_qmldir.target = $$OUT_PWD/$$DESTDIR/qmldir
copy_qmldir.depends = $$PRO_FILE_PWD/qmldir
copy_qmldir.commands = $(COPY_FILE) "$$replace(copy_qmldir.depends, /, $$QMAKE_DIR_SEP)" "$$replace(copy_qmldir.target, /, $$QMAKE_DIR_SEP)"

sourceQmlTypePath = $$_PRO_FILE_PWD_/Picfection.qmltypes
targetQmlTypePath = $$OUT_PWD/$$DESTDIR/Picfection.qmltypes
copy_qmldir.commands += && $(COPY_FILE) \"$$replace(sourceQmlTypePath, /, $$QMAKE_DIR_SEP)\" \"$$replace(targetQmlTypePath, /, $$QMAKE_DIR_SEP)\"

sourceQmlFilesPath = $$PRO_FILE_PWD/MslQmlControllerItem.qml

targetQmlFilesPath = $$OUT_PWD/$$DESTDIR/MslQmlControllerItem.qml

copy_qmldir.commands += && $(COPY_FILE) "$$replace(sourceQmlFilesPath, /, $$QMAKE_DIR_SEP)" "$$replace(targetQmlFilesPath, /, $$QMAKE_DIR_SEP)"

QMAKE_EXTRA_TARGETS += copy_qmldir
PRE_TARGETDEPS += $$copy_qmldir.target

}

qmldir.files = qmldir
unix {
installPath = $$[QT_INSTALL_QML]/$$replace(uri, \., /)
qmldir.path = $$installPath
target.path = $$installPath
INSTALLS += target qmldir
}
@

And application pro file looks like:
@
TEMPLATE = app

QT += qml quick widgets

SOURCES += main.cpp

macx {

ICON = icon_512x512.icns

QMAKE_INFO_PLIST = Info.plist
RESOURCES += qml.qrc

# Additional import path used to resolve QML modules in Qt Creator's code model
QML_IMPORT_PATH =

}
else:ios {

ICON = icon_512x512.icns

QMAKE_INFO_PLIST = Info_ios.plist
RESOURCES += qml_ios.qrc

QTPLUGIN += PicfectionSDK

# Additional import path used to resolve QML modules in Qt Creator's code model
QML_IMPORT_PATH =

}

CODECFORTR = UTF-8

Default rules for deployment.

include(deployment.pri)
@

I can't understand how to fix problem with metadata URI. Could you help me with this?

shav · wrote on 5 Jan 2015, 07:51

Hi, everyone!

Maybe somebody know where I can find information about metadata URI for iOS QML plugins?

shav · wrote on 7 Jan 2015, 14:39

Hi everyone!

At last I found the solution of my problem with static plugin for iOS. The solution is: set line to your plugin .pro file
@
QMAKE_MOC_OPTIONS += -Muri=com.shav.picfection
@

and you plugin .pro file must looks like:

TEMPLATE = lib
TARGET = PicfectionSDK
QT += qml quick network
ios {
	CONFIG += qt plugin c++11 static
}
else
{
	CONFIG += qt plugin c++11
}

TARGET = $qtLibraryTarget($TARGET)
uri = com.shav.picfection
QMAKE_MOC_OPTIONS += -Muri=com.shav.picfection #<----- This helped me to solve my problem.

DESTDIR = com/shav/picfection
OBJECTS_DIR = tmp/objects
MOC_DIR = tmp/mocs

SOURCES += 
	picfectionsdk_plugin.cpp 
	picfectionmanager.cpp 
	Requests/picfectionnetworkmanager.cpp 
	Requests/picfectionrequest.cpp 
	Objects/Team/picfectionteam.cpp 
	Objects/Project/picfectionproject.cpp 
	Objects/Event/picfectionevent.cpp 
	Objects/Event/picfectioneventdatas.cpp 
	Objects/Event/picfectioneventdocument.cpp 
	Objects/Event/picfectioneventuser.cpp

HEADERS += 
	picfectionsdk_plugin.h 
	picfectionmanager.h 
	Requests/picfectionnetworkmanager.h 
	Requests/picfectionrequest.h 
	Objects/Team/picfectionteam.h 
	Objects/Project/picfectionproject.h 
	Objects/Event/picfectionevent.h 
	Objects/Event/picfectioneventdatas.h 
	Objects/Event/picfectioneventdocument.h 
	Objects/Event/picfectioneventuser.h

DISTFILES = qmldir 
picfectionsdk.json

!equals(PRO_FILE_PWD, $OUT_PWD) {
	copy_qmldir.target = $OUT_PWD/$DESTDIR/qmldir
	copy_qmldir.depends = $PRO_FILE_PWD/qmldir
	copy_qmldir.commands = $(COPY_FILE) "$replace(copy_qmldir.depends, /, $QMAKE_DIR_SEP)" "$replace(copy_qmldir.target, /, $QMAKE_DIR_SEP)"

	sourceQmlTypePath = $_PRO_FILE_PWD_/Picfection.qmltypes
	targetQmlTypePath = $OUT_PWD/$DESTDIR/Picfection.qmltypes
	copy_qmldir.commands += && $(COPY_FILE) \"$replace(sourceQmlTypePath, /, $QMAKE_DIR_SEP)\" \"$replace(targetQmlTypePath, /, $QMAKE_DIR_SEP)\"
	sourceQmlFilesPath = $PRO_FILE_PWD/MslQmlControllerItem.qml
	targetQmlFilesPath = $OUT_PWD/$DESTDIR/MslQmlControllerItem.qml
	copy_qmldir.commands += && $(COPY_FILE) "$replace(sourceQmlFilesPath, /, $QMAKE_DIR_SEP)" "$replace(targetQmlFilesPath, /, $QMAKE_DIR_SEP)"
	QMAKE_EXTRA_TARGETS += copy_qmldir
	PRE_TARGETDEPS += $copy_qmldir.target
}

qmldir.files = qmldir
unix {
	installPath = $[QT_INSTALL_QML]/$replace(uri, \., /)
	qmldir.path = $installPath
	target.path = $installPath
	INSTALLS += target qmldir
}