Problem with a click in push notification for ios

[Qture]

In APNSApplicationDelegate.mm I have a part of an object-C code, which provides a push notification click.

// Handle notification messages after display notification is tapped by the user.
- (void)userNotificationCenter:(UNUserNotificationCenter *)center
didReceiveNotificationResponse:(UNNotificationResponse *)response
         withCompletionHandler:(void(^)(void))completionHandler {
    NSDictionary *userInfo = response.notification.request.content.userInfo;
    NSString *stack = response.notification.request.content.userInfo[@"gcm.notification.stack"];
   NSString *url = response.notification.request.content.userInfo[@"gcm.notification.url"];
  if (userInfo[kGCMMessageIDKey]) {
    NSLog(@"Message: %@", userInfo[kGCMMessageIDKey]);
  }
  // With swizzling disabled you must let Messaging know about the message, for Analytics
  // [[FIRMessaging messaging] appDidReceiveMessage:userInfo];
  // Print full message.
NSLog(@"%@", userInfo);
completionHandler();
}

At this moment I need to change a stackView in qml, how to make it? Thanks in advance for any advice!

NSString *stack = response.notification.request.content.userInfo[@"gcm.notification.stack"]; 

At this string needed stackView comes from Firebase, which is shown to the user.

NSString *url = response.notification.request.content.userInfo[@"gcm.notification.url"];

At this string needed url comes for webview (for a certain stackView).

I tried some variants like hot reloading with QML, pass that two stings above through getters and setters, but still no success.

[SGaist]

Hi,

Just an idea but you could encapsulate this through a QObject that would be set as context property of your QML engine, and then you would use it for signal/slot handling.

[Qture]

Hi @SGaist thank you!

With the signal/slot handling no success yet, I have an error:

#0	0x0000000101c933a4 in operator|(QQmlPropertyData::WriteFlag, QQmlPropertyData::WriteFlag) at /Users/qt/work/qt/qtdeclarative/src/qml/qml/qqmlpropertydata_p.h:485

I'm using Q_PROPERTY, but in my code there is no any class property.

main.cpp
int main(int argc, char *argv[])
{
    QtWebView::initialize();

    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
    QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts);

    QGuiApplication app(argc, argv);

    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);

    Config SSGconfig;
    SSGconfig.init();

    MotivationConfig SSGmotivationConfig;
    SSGmotivationConfig.init();

    WorksConfig SSGworksConfig;
    SSGworksConfig.init();

    FCMConfig SSGFcmConfig;
    SSGFcmConfig.init();

    WebView SSGwebView;
    SignIn SSGsignIn;

    engine.rootContext()->setContextProperty("SSGwebView", &SSGwebView);
    engine.rootContext()->setContextProperty("SSGconfig", &SSGconfig);
    engine.rootContext()->setContextProperty("SSGmotivationConfig", &SSGmotivationConfig);
    engine.rootContext()->setContextProperty("SSGworksConfig", &SSGworksConfig);
    engine.rootContext()->setContextProperty("SSGFcmConfig", &SSGFcmConfig);
    engine.rootContext()->setContextProperty("SSGsignIn", &SSGsignIn);

    QZXing::registerQMLTypes();

    Application customApp;
    customApp.checkPermissions();

    NotificationHandler :: GetInstance () -> StartMessaging ();

    engine.load(url);

    return app.exec();
}

Config.h - short "header" of config
class Config : public QObject
{
    Q_OBJECT
public:
    explicit Config(QObject *parent = nullptr);
    ~Config();
signals:
    void sendToQml(QString);
public slots:
    void receiveFromQml(QString);
}

Config.cpp - short config
#include "config.h"	

Config::Config(QObject *parent)
    :QObject(parent)
{
   
}

void Config::receiveFromQml(QString stack)
{
    emit sendToQml(stack);
}

Config::~Config()
{
   
}


APNSApplicationDelegate.mm - a part of code
// Handle notification messages after display notification is tapped by the user.
- (void)userNotificationCenter:(UNUserNotificationCenter *)center
didReceiveNotificationResponse:(UNNotificationResponse *)response
         withCompletionHandler:(void(^)(void))completionHandler {
    NSDictionary *userInfo = response.notification.request.content.userInfo;
    NSString *stack = response.notification.request.content.userInfo[@"gcm.notification.stack"];
    Config SSGconfig;
    SSGconfig.receiveFromQml(stack.UTF8String);
    // NSString *url = response.notification.request.content.userInfo[@"gcm.notification.url"];
  //if (userInfo[kGCMMessageIDKey]) {
    //NSLog(@"Message ID-4: %@", userInfo[kGCMMessageIDKey]);

  //}

  // With swizzling disabled you must let Messaging know about the message, for Analytics
  // [[FIRMessaging messaging] appDidReceiveMessage:userInfo];

  // Print full message.
    
    NSLog(@"%@", userInfo);
    //NSLog(@"%@", [NSDictionary dictionaryWithObject:userInfo forKey:@"gcm.notification.url"]);

    completionHandler();
}

And a part of main.qml

Connections {
            target: SSGconfig
            onSendToQml: {
                console.log(stack)
            }
        }

I want to get the name of stackView in my qml (in console.log) but get an error, please any advice

[Qture]

I found errors and fixed it. Now a part of the qml code looks like this:

Connections {
target: SSGconfig
function onSendToQml(stack) {
console.log(stack)
}
}

С++ side's slot works correctly and in receiveFromQml I have a string value correctly, but a signal doesn't work at all.

[SGaist]

You are using two different objects. The one you set as context property is not the same as the one you use in your application delegate.

[Qture]

@SGaist sorry, where do you see different objects? Can you please tell me more what do you mean

[SGaist]

You have one in main.cpp and another one in APNSApplicationDelegate.mm

[Qture]

@SGaist Is it possible to use the same object if APNSApplicationDelegate.mm links objective sources in the pro file but not in the main.cpp?

[SGaist]

You have to retrieve the delegate and the SSGconfig object you have there.

[Qture]

@SGaist, how to retrieve the delegate?

[SGaist]

See here.