UIApplication.shared.canOpenURL implements in Qt

Max Base

How we can access to UIApplication? and how can call canopenurl?

Target is iOS using Qt.

https://developer.apple.com/documentation/uikit/uiapplication/1622952-canopenurl

SGaist

It's written on the page you are linking as well as the URL: use the UIKit framework.

Max Base

@SGaist said in UIApplication.shared.canOpenURL implements in Qt:

UIKit

I don't know how to use UIKit, UIApplication in my Qt project.
I cannot find any solution and sample code for this.
Can you help me?

SGaist

The exact same as you did with NSApplication, just use UIApplication in place.

Max Base

@SGaist said in UIApplication.shared.canOpenURL implements in Qt:

NSURL *url = myUrl.toNSUrl();
bool canOpen = [[UIApplication shared] canOpenUrl: url];

Thank you so much for your message.

Also how we can access to shared object when we are in another file?

It's a globally object in OBJECT C (.mm) files?

SGaist

The same way you did there. The function returns the singleton app instance.

Max Base

@SGaist said in UIApplication.shared.canOpenURL implements in Qt:

The same way you did there. The function returns the singleton app instance.

![photo_2020-01-21_01-25-10.jpg]

main.mm file:

#include <QApplication>
#include <QQmlApplicationEngine>
#include <QtWebView>
#include <QDesktopServices>
#include <QUrl>
#include <QQmlContext>
#include "HandleURL.hpp"

#include <QDebug>
#include <QUrlQuery>

//Two of these??
#include <QUrl>
#include <QDesktopServices>
#include "HandleURL.hpp"
//#import <AppKit/NSApplication.h>
#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
#include <QUrl>

int main(int argc, char *argv[])  {
	QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
	QApplication::setAttribute(Qt::AA_ShareOpenGLContexts);
	QApplication app(argc, argv);

	QUrl testURL("swish://paymentrequest?token=Shk9Q9C-RaatwCxZ_lYZ-u11ShJafIg5&callbackurl=https%3A%2F%2Fpay.direct2internet.com%2Fpay%2Fsuccess%3Fd2iwebpay-hh%3DV3n%252FCX%26d2iwebpay-tm%3D1579033717%26d2iwebpay%3D88c96710-5e08-43f6-bf46-f0ba89a3b3f6");
	NSURL *urls = testURL.toNSURL();
	bool canOpen = [[UIApplication sharedApplication] canOpenUrl: urls];


	qDebug() << canOpen;
	if(canOpen) {
		QDesktopServices::openUrl(testURL);
	}

	QtWebView::initialize();
	QQmlApplicationEngine engine;
	const QUrl url(QStringLiteral("qrc:/main.qml"));
	QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
				 &app, [url](QObject *obj, const QUrl &objUrl) {
		if (!obj && url == objUrl)
			QCoreApplication::exit(-1);
	}, Qt::QueuedConnection);

	HandleURL *URLHandler = new HandleURL();
	QDesktopServices::setUrlHandler("swish", URLHandler, "handleURL");

	engine.load(url);
	engine.rootContext()->setContextProperty("URLHandler", URLHandler);
	return app.exec();
}

Error:

ld: framework not found AppKit
clang: error: linker command failed with exit code 1 (use -v to see invocation)

SGaist

The code you pasted does not match the code you are showing in the image.

One uses shared and the other sharedApplication.

Max Base

@SGaist said in UIApplication.shared.canOpenURL implements in Qt:

The code you pasted does not match the code you are showing in the image.

One uses shared and the other sharedApplication.

Sorry,

shared have error: Class method 'shared' not found.

So we did used sharedApplication in images.

Please check old my message, i did update it.

SGaist

You know that Objective-C/C++ like C/C++ is case sensitive ?

It's canOpenURL.

Max Base

@SGaist said in UIApplication.shared.canOpenURL implements in Qt:

You know that Objective-C/C++ like C/C++ is case sensitive ?

It's canOpenURL.

Thank you.

After This:

.pro file:

QT += widgets quick webview
CONFIG += c++17
TEMPLATE = app
DEFINES += QT_DEPRECATED_WARNINGS
LIBS += -framework AppKit -framework Foundation

# += \
#    main.mm

RESOURCES += qml.qrc
QML_IMPORT_PATH =
QML_DESIGNER_IMPORT_PATH =
# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target
contains(ANDROID_TARGET_ARCH,arm64-v8a) {
    ANDROID_ARM64 = 1
    ANDROID_EXTRA_LIBS = \
        $$PWD/openssl-1.1.1a-clang/arm64-v8a/lib/libcrypto.so \
        $$PWD/openssl-1.1.1a-clang/arm64-v8a/lib/libssl.so

            ANDROID_PACKAGE_SOURCE_DIR = \
                $$PWD/android
}

contains(ANDROID_TARGET_ARCH,armeabi-v7a) {
    ANDROID_EXTRA_LIBS = \
        $$PWD/openssl-1.1.1a-clang/armeabi-v7a/lib/libcrypto.so \
        $$PWD/openssl-1.1.1a-clang/armeabi-v7a/lib/libssl.so

    ANDROID_PACKAGE_SOURCE_DIR = \
        $$PWD/android
}


DISTFILES += \
    android/AndroidManifest.xml \
    android/build.gradle \
    android/gradle/wrapper/gradle-wrapper.jar \
    android/gradle/wrapper/gradle-wrapper.properties \
    android/gradlew \
    android/gradlew.bat \
    android/res/values/libs.xml

defineReplace(droidVersionCode) {
    segments = $$split(1, ".")
    for(segment, segments): vCode = "$$first(vCode)$$format_number($$segment, width=3 zeropad)"
    ## arm64-v8a, armeabi-v7a
    contains(ANDROID_TARGET_ARCH, arm64-v8a): \
        suffix = 1
    else:contains(ANDROID_TARGET_ARCH, armeabi-v7a): \
        suffix = 0
    return($$first(vCode)$$first(suffix))
}
ios {
   QMAKE_INFO_PLIST = ios/info.plist
}
VERSION = 1.2.3
ANDROID_VERSION_NAME = $$VERSION
ANDROID_VERSION_CODE = $$droidVersionCode($$ANDROID_VERSION_NAME)
HEADERS += \
    HandleURL.hpp

OBJECTIVE_SOURCES =main.mm
# HandleURL.mm

error:

d Debug-iphonesimulator/StnTaxi.app/StnTaxi normal x86_64
    cd /Users/diyar/Desktop/build-StnTaxi-Qt_5_13_2_for_iOS_Simulator-Release
    export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -target x86_64-apple-ios11.0-simulator -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.2.sdk -L/Users/diyar/Desktop/build-StnTaxi-Qt_5_13_2_for_iOS_Simulator-Release/Debug-iphonesimulator -L/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.2.sdk/System/Library/Frameworks -L/Users/diyar/Qt/5.13.2/ios/plugins/platforms -L/Users/diyar/Qt/5.13.2/ios/plugins/webview -L/Users/diyar/Qt/5.13.2/ios/lib -L/Users/diyar/Qt/5.13.2/ios/plugins/imageformats -L/Users/diyar/Qt/5.13.2/ios/plugins/qmltooling -L/Users/diyar/Qt/5.13.2/ios/plugins/bearer -L/Users/diyar/Qt/5.13.2/ios/qml/QtQuick/Layouts -L/Users/diyar/Qt/5.13.2/ios/qml/Qt/labs/platform -L/Users/diyar/Qt/5.13.2/ios/qml/QtWebView -L/Users/diyar/Qt/5.13.2/ios/qml/QtQuick.2 -L/Users/diyar/Qt/5.13.2/ios/qml/QtQuick/Templates.2 -L/Users/diyar/Qt/5.13.2/ios/qml/QtQuick/Controls.2 -L/Users/diyar/Qt/5.13.2/ios/qml/QtQuick/Controls.2/Fusion -L/Users/diyar/Qt/5.13.2/ios/qml/QtQuick/Controls.2/Universal -L/Users/diyar/Qt/5.13.2/ios/qml/QtQuick/Controls.2/Material -L/Users/diyar/Qt/5.13.2/ios/qml/QtGraphicalEffects/private -L/Users/diyar/Qt/5.13.2/ios/qml/QtQuick/Window.2 -L/Users/diyar/Qt/5.13.2/ios/qml/QtGraphicalEffects -L/Users/diyar/Qt/5.13.2/ios/qml/QtQuick/Controls.2/Imagine -F/Users/diyar/Desktop/build-StnTaxi-Qt_5_13_2_for_iOS_Simulator-Release/Debug-iphonesimulator -filelist /Users/diyar/Desktop/build-StnTaxi-Qt_5_13_2_for_iOS_Simulator-Release/.xcode/StnTaxi.build/Debug-iphonesimulator/StnTaxi.build/Objects-normal/x86_64/StnTaxi.LinkFileList -dead_strip -Xlinker -object_path_lto -Xlinker /Users/diyar/Desktop/build-StnTaxi-Qt_5_13_2_for_iOS_Simulator-Release/.xcode/StnTaxi.build/Debug-iphonesimulator/StnTaxi.build/Objects-normal/x86_64/StnTaxi_lto.o -Xlinker -no_deduplicate -Xlinker -objc_abi_version -Xlinker 2 -fobjc-link-runtime -stdlib=libc++ -Wl,-e,_qt_main_wrapper -Wl,-rpath,@executable_path/../Frameworks -L/Users/diyar/Qt/5.13.2/ios/plugins/platforms -framework AssetsLibrary -lz -framework MobileCoreServices -lm -framework UIKit -framework OpenGLES -Xlinker -sectcreate -Xlinker __TEXT -Xlinker __entitlements -Xlinker /Users/diyar/Desktop/build-StnTaxi-Qt_5_13_2_for_iOS_Simulator-Release/.xcode/StnTaxi.build/Debug-iphonesimulator/StnTaxi.build/StnTaxi.app-Simulated.xcent -framework AppKit -lqios_debug -lqtwebview_darwin_debug -framework WebKit -framework QuartzCore -framework AudioToolbox -lQt5FontDatabaseSupport_debug -lqtfreetype_debug -lQt5GraphicsSupport_debug -lQt5ClipboardSupport_debug -lqgif_debug -lqicns_debug -lqico_debug -lqjpeg_debug -lqmacheif_debug -lqmacjp2_debug -framework ImageIO -lqtga_debug -lqtiff_debug -lqwbmp_debug -lqwebp_debug -lqmldbg_debugger_debug -lqmldbg_inspector_debug -lqmldbg_local_debug -lqmldbg_messages_debug -lqmldbg_native_debug -lqmldbg_nativedebugger_debug -lqmldbg_preview_debug -lqmldbg_profiler_debug -lqmldbg_quickprofiler_debug -lqmldbg_server_debug -lQt5PacketProtocol_debug -lqmldbg_tcp_debug -lqgenericbearer_debug -lqquicklayoutsplugin_debug -lqtlabsplatformplugin_debug -lQt5Widgets_debug -ldeclarative_webview_debug -lQt5WebView_debug -lqtquick2plugin_debug -lqtquicktemplates2plugin_debug -lqtquickcontrols2plugin_debug -lqtquickcontrols2fusionstyleplugin_debug -lqtquickcontrols2universalstyleplugin_debug -lqtquickcontrols2materialstyleplugin_debug -lqtgraphicaleffectsprivate_debug -lwindowplugin_debug -lqtgraphicaleffectsplugin_debug -lqtquickcontrols2imaginestyleplugin_debug -lQt5QuickControls2_debug -lQt5QuickTemplates2_debug -lQt5Quick_debug -lQt5Gui_debug -lqtlibpng_debug -lqtharfbuzz_debug -framework CoreText -framework CoreGraphics -lQt5Qml_debug -lQt5Network_debug -framework Security -lQt5Core_debug -framework CoreFoundation -framework Foundation -lqtpcre2_debug -Xlinker -dependency_info -Xlinker /Users/diyar/Desktop/build-StnTaxi-Qt_5_13_2_for_iOS_Simulator-Release/.xcode/StnTaxi.build/Debug-iphonesimulator/StnTaxi.build/Objects-normal/x86_64/StnTaxi_dependency_info.dat -o /Users/diyar/Desktop/build-StnTaxi-Qt_5_13_2_for_iOS_Simulator-Release/Debug-iphonesimulator/StnTaxi.app/StnTaxi

ld: framework not found AppKit
clang: error: linker command failed with exit code 1 (use -v to see invocation)

main.mm:


#include <QApplication>
#include <QQmlApplicationEngine>
#include <QtWebView>
#include <QDesktopServices>
#include <QQmlContext>
#include "HandleURL.hpp"
#include <QDebug>
#include <QUrlQuery>
#include <QDesktopServices>
#include "HandleURL.hpp"
//#import <AppKit/NSApplication.h>
#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
#include <QUrl>
int main(int argc, char *argv[])  {
    QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
    QApplication::setAttribute(Qt::AA_ShareOpenGLContexts);
    QApplication app(argc, argv);
    QUrl testURL("swish://paymentrequest?token=Shk9Q9C-RaatwCxZ_lYZ-u11ShJafIg5&callbackurl=https%3A%2F%2Fpay.direct2internet.com%2Fpay%2Fsuccess%3Fd2iwebpay-hh%3DV3n%252FCX%26d2iwebpay-tm%3D1579033717%26d2iwebpay%3D88c96710-5e08-43f6-bf46-f0ba89a3b3f6");
    NSURL *urls = testURL.toNSURL();
    bool canOpen = [[UIApplication sharedApplication] canOpenURL: urls];

    qDebug() << canOpen;
    if(canOpen) {
        QDesktopServices::openUrl(testURL);
    }
    QtWebView::initialize();
    QQmlApplicationEngine engine;
    const QUrl url(QStringLiteral("qrc:/main.qml"));
    QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
                 &app, [url](QObject *obj, const QUrl &objUrl) {
        if (!obj && url == objUrl)
            QCoreApplication::exit(-1);
    }, Qt::QueuedConnection);

    HandleURL *URLHandler = new HandleURL();
    QDesktopServices::setUrlHandler("swish", URLHandler, "handleURL");

    engine.load(url);
    engine.rootContext()->setContextProperty("URLHandler", URLHandler);
    return app.exec();
}

SGaist

AppKit is a macOS only framework. Don't link to it when building for iOS.