Mobile and Embedded

I found a global solution for it (resp. ChatGPT :-) and will share it here. class AndroidApplication : public QApplication { public: AndroidApplication(int &argc, char **argv) : QApplication(argc, argv) {} bool notify(QObject *receiver, QEvent *e) override { // Erstmal normal weiterleiten bool ok = QApplication::notify(receiver, e); // Bei jedem UpdateRequest-Event erzwingen wir einen Frame-Swap if (e->type() == QEvent::UpdateRequest) { // Prüfen, ob das Ziel ein QWidget ist if (auto w = qobject_cast<QWidget*>(receiver)) { if (auto wh = w->window()->windowHandle()) { wh->requestUpdate(); // sofortigen Flush anstoßen } } } return ok; } }; It works ! Is this ok in general and for performance issues ?

I found a solution for me hw.gpu.enabled = yes hw.gpu.mode = angle ... what ever it means

@jsulm I disabled the antivirus software on both computers, but there's still the same problem.

@Andy314 said in Android App via debugger cashes updateNativeActivity() not found: @CassD said in Android App via debugger cashes updateNativeActivity() not found: I have serious doubt about MDI window on Android platform (iOS also). Android is not intended to open multiple windows at once and I just wonder whether windows inside window could be the actual cause of your issue. It is not really correct, what I wrote, that it is my first Android app - its my first I really will use. When I began with QT - nearly 7-8 years ago - I had a large Windows Desktop Programm and made and try only for testing to let in run in Android. After about 3 day it worked and I was very impressed of it, how easy it was and how similar the gui looks (and in my favourite language C++). Indeed I had a MDI Main Windows with menü etc. All was very small, so could not work by touch with but with the mouse all works like a normal windows desktop app. MDI Chield creates Qt in its onw way, that must not be OS-Windows, it think.

Are you sure? This seems pretty nonprofessional. I have no better explanation, though. I would assume, that this affects every fullscreen app... I write a media player, for example. They recently implemented this: https://www.qt.io/blog/expanded-client-areas-and-safe-areas-in-qt-6.9 Which seems to me quite similar. Yes, as a workaround, i use the height of the hidden status bar... Producing wasted space on old phones without rounded corners.

It's already reported as a bug. https://bugreports.qt.io/browse/QTBUG-133228 And i found a workaround: TapHandler, HoverHandler and MouseArea are not affected.

Thank you for the help. I was a little bit stupid and forgot the feature.

It's not worked also with any popup Widgets, Dialogs, Menus, Popups, etc. Also issue persist in the latest 6.8.3 and 6.9.0 and caused by this changes - https://codereview.qt-project.org/c/qt/qtbase/+/568225 (https://bugreports.qt.io/browse/QTBUG-135253) A created a separate issue, with steps how to reproduce it with the latest Qt version - https://bugreports.qt.io/browse/QTBUG-135253

I'm sorry that I am so late to the party… 😁 I have worked a lot with Mimer SQL, both in Android and elsewhere. I wonder if there is anything in particular that you were thinking about and that I perhaps can help you with?

Qt 5 on macOS didn't support TLS 1.3 in the prebuilt QtNetwork.framework. The underlying platform facility, secure transport, stopped development with TLS 1.2. This could be worked around by rebuilding Qt to use OpenSSL instead. I haven't used Qt on iOS, or even examined the source. My mostly unfounded guess is that a similar if not identical situation applies.

@cristian-adam I ended up adding this line to my cmake file: set_property(TARGET appNgaIcdFw PROPERTY QT_ANDROID_DEPLOYMENT_SETTINGS_FILE "${CMAKE_CURRENT_BINARY_DIR}/android-appNgaIcdFw-deployment-settings.json") Seems to have resolved this issue.

Hi and welcome to devnet, Which backend are you using on your device ?

@Parvathy2020 said in Qt Creator 16.01: Android SDK Manager gets stuck: Hi, I am trying to download Android -SDK using Qt creator (version 16.01) But getting stuck , with error message Checking pending licenses... Please do post a screenshot with the Android SDK setting. Something like: [image: 1c2038e8-4374-46fa-a2b3-5dd58eafa09f.png] I have just tested on macOS with OpenJDK 17 and it worked as expected.

@jporcher Can you try to change the scrolling speed? For example: tableWidget->setVerticalScrollMode( QAbstractItemView::ScrollPerPixel ); The default one could be too fast. Qt Widgets do have issues on touch screen(not only on phone screens). It may be hardware or drivers problem as well. Try another brand of phone to see if your app has the same problem.

@OldRoly your selection is not arm64_v8a in the second picture. And what is the Android version in your phone? Find out the compatibility of android version and jdk version.

@ljxiango maybe use qt code to check permissions. https://doc.qt.io/qt-6/qtandroidprivate.html Qt6 has a lot of changes. Do not expect everything is the same.