Qt5.12.2 QMessageBox can't be showed on IOS18.2
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wrote on 14 Mar 2025, 09:42 last edited by
The following code can work correctly on IOS16.7:
void DIAG(QString text)
{
QMessageBox box;
box.setIcon(QMessageBox::NoIcon);
box.setText(text);
box.addButton(QObject::tr("OK"), QMessageBox::AcceptRole);
box.exec();
}But can't work on on IOS18.2!
For example, if I call DIAG function under QPushButton clicked slot, the messagebox can't show and will block the current UI(you can't click anything).
Now I let the APP goto background, and then reopen it, then I can see the messagebox(but still you can't click anything).How to fix this issue on IOS18.2?
Thanks! -
The following code can work correctly on IOS16.7:
void DIAG(QString text)
{
QMessageBox box;
box.setIcon(QMessageBox::NoIcon);
box.setText(text);
box.addButton(QObject::tr("OK"), QMessageBox::AcceptRole);
box.exec();
}But can't work on on IOS18.2!
For example, if I call DIAG function under QPushButton clicked slot, the messagebox can't show and will block the current UI(you can't click anything).
Now I let the APP goto background, and then reopen it, then I can see the messagebox(but still you can't click anything).How to fix this issue on IOS18.2?
Thanks!@iamnotsad You should consider switching to QML for mobile platforms. There is not much happening in QtWidgets and they are more for desktop systems.
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Please also move to at least Qt 6.5.
5.12 isn't supported anymore. -
@iamnotsad You should consider switching to QML for mobile platforms. There is not much happening in QtWidgets and they are more for desktop systems.
wrote on 17 Mar 2025, 00:37 last edited by@jsulm Thanks for your reply!
I kown switch to QML is the best choice. But my raw APP
was based on QWidgets, it will take to long time to switch to QML...
I want to find a workround for this issue firstly.
And next step,we may consider switching to QML when we have resources. -
@jsulm Thanks for your reply!
I kown switch to QML is the best choice. But my raw APP
was based on QWidgets, it will take to long time to switch to QML...
I want to find a workround for this issue firstly.
And next step,we may consider switching to QML when we have resources.@iamnotsad Then you should at least use a more recent version of Qt - latest Qt5 or even better Qt6. Qt 5.12 isn't supported anymore for long time already.
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@iamnotsad Then you should at least use a more recent version of Qt - latest Qt5 or even better Qt6. Qt 5.12 isn't supported anymore for long time already.
wrote on 17 Mar 2025, 10:58 last edited by@jsulm Yes，I am preparing to upgrade my APP to use Qt6.8. But I met the issue: https://forum.qt.io/topic/161366/qt6-8-2-qwidget-can-t-show-on-ios18-2
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