Mobile and Embedded

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Mobile and Embedded

UNSOLVED QPushButton stay pressed after released finger
• NGV_Maxime

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Hi, Has anyone ever encountered this problem? Is there a function to see if the smartphone screen is pressed or touched? I could possibly check every 100ms for example if the screen is touched or not to disable the key screen is not touched. What do you think ? thanks
UNSOLVED only one QPushButton with QWidget works
• K-Str

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Hello, I give up to install Qt Creator for remote development. It's like "Sisyphean task". Now I installed Qt on my Raspberry and here I try to do my work. I use the RemoteDesktop. It seems it works for me. Thanks a lot to all helpers.
UNSOLVED Implement media browser on Android
• vlada

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UNSOLVED Android BLE services not discovered
• MartinD

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@J-Hilk Pairing and bonding is well defined in Bluetooth standard. Bonding means securing connection and storing the keys used to secure the connection permanently on both sides so they can be reused later.
UNSOLVED Run QT application on boot using Android boot complete intent
• mkre

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UNSOLVED Android unauthorized access to library
• MartinD

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This topic is deleted!
• ChrisTof

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UNSOLVED Problem rendering 3D mesh in embedded device
• Simone98

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Are you building the application directly on the module ?
SOLVED Qt Quick Ultralite
• PR1G0RYAN

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@PR1G0RYAN said in Qt Quick Ultralite: Will try something different for STM I'd love to hear what other options you're considering. Please share your findings. Thanks.
UNSOLVED Compiling Qt5.14 for RaspberryPi4
• maxwell31

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Hm, I might be mistaken, I guess installing the above libraries changed something. I will report more later
UNSOLVED HTML5 video tags and extensions support in QT 5
• HelenG

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@HelenG Do you mean Qt Web Engine? See https://doc.qt.io/qt-5/qtwebengine-features.html#
SOLVED Ignore/disable all stylesheet on run time
• nima.latifi

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@mrjj It is unbelievable, heavy use of style-sheets makes my program run very slowly. i think "linuxfb" repaint all styles in each frame and make it slowly. now i am removing all stylesheets and re design program. :-(
UNSOLVED Qt 4.8.7 - Cross compilation error - symbol lookup error: undefined symbol: _ZN7QWidget8qwsEventEP8QWSEvent
• Akhi007

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Ensure that you deployed your cross-compiled Qt version on the device.
UNSOLVED QT Wayland client crash
• vpanchal

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UNSOLVED QML Camera doesn't work properly
• Alien

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Dear @SGaist , I checked on two versions of QT : 5.9.2 and 5.11.1 they had same error. Is there any way to not to use qml Camera type and VideoOutput to use gstreamer pipeline directly and putting its sink on qml gui?
SOLVED Inherited QGuiApplication object do not working on iOS Simulator. Why?
• bogong

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@kshegunov said in Inherited QGuiApplication object do not working on iOS Simulator. Why?: I believe I've already answered this. Sure, write an answer without explanation based on difference between Qt sources for different platform. And the problem is in QCoreApplication and how constructor calling from inherited class and possible in moc. Found cause of it by my own in Qt Sources. Issue closed.
UNSOLVED SQLITE Database in Project
sqlite • • Matze5590

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Consider using QTemporaryFile::createNativeFile: QTemporaryFile *QTemporaryFile::createNativeFile(QFile &file) QTemporaryFile *QTemporaryFile::createNativeFile(const QString &fileName) then you can pass a resource path as fileName.
UNSOLVED QT Compass/Magnetometer/Accelerometer
• BTSTOnline

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Yes, I have tried other compass apps on my 'Droid and none exhibit this behavior.
SOLVED Access memory of a Mifare classic 1k card with QtNFC
• Darsath

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@Darsath said in Access memory of a Mifare classic 1k card with QtNFC: 'cause i thought Qt would do the job. Please keep in mind that I didn't say Qt cannot do the job. I really don't know, I never used such feature.
SOLVED Qt 5.13.1 Android 32+64 Bit
• ekkescorner

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@ekkescorner BTW: finally I'll use this version code: Version Name: 1.2.3 Version Code: 210001023 (32 Bit APK for armeabi-v7a) 211001023 (64 Bit APK for arm64-v8a) where 21 Min API 0 = 32 Bit, 1 = 64 Bit 0 (reserved for screensizes) 01 Major Version 1 02 Minor Version 2 3 Patch Version 3
UNSOLVED Cmake project for mobile. How?
• bogong

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@bogong Hi, have you tried to follow this ? https://community.idera.com/developer-tools/b/blog/posts/new-in-10-2-3-cmake-support-for-ios-and-android There's some lines to add in the cmakefile to make this work. You also need to import libraries like you would do in qmake. Regards
UNSOLVED Google requires change Development API in apps
• Gourmet

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UNSOLVED API Warning when launching on Android 9
• ArnaudG

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@ekkescorner getting the same now with Qt 5.13.1, Android 9 Device (Xiaomi M2 Lite)
SOLVED Create slideshow in qt creator
qlist qtcreator 5.11 • • RAJ Dalsaniya

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@RAJ-Dalsaniya Super to hear \o/ Please mark as solved using the Topic Tool button at first post :)
UNSOLVED Can SSD drive with VM increase debug speed in QtCreator?
• Gourmet

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UNSOLVED DFU bootloader for BLE nordics nrf51
• Zivojin

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Hello Zivojin , I'm also working dfu fro nrf device for android and windows . I'm using Qt platform for making android and desktop application. could you please help me out in how to dfu in QT for nrf device? Thank in advance
SOLVED Qt 5.13.1 and Android SDK 29
• ekkescorner

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@Quang-Phu thx
UNSOLVED Calling Java method from within Qt yields exception
• Bremenpl

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So I am just bumping the topic since it feels like I am close (thanks @jsulm). I would really appreciate anyone explaining me the magic happening in that android notofication example (about the namimg and everything)...
This topic is deleted!
• DeltaSim

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installing Qbluetooth module
raspberry pi 3 ubuntu 16.04 qbluetooth qtmodule • • vishbynature

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@SGaist yes. at that time i did not know about Qtconnectivity module.
UNSOLVED Multiple displays support on i.MX8 and EGLFS
eglfs display i.mx8 • • diegor

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Thank you, I've posted the question there (unfortunately detected as spam): https://lists.qt-project.org/pipermail/interest/2019-September/033861.html
UNSOLVED error: cannot find -lc++ qt 5.12 android
• kechkibet

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Just installed Qt 5.12.5 and checked - this option is already in qmake.config files for all android branches. Topic starter can change this topic to SOLVED.
UNSOLVED undefined reference to 'glGetQueryObjectui64vEXT'
• aRcleR

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SOLVED no Audio in QML on iOS
• Marc_Van_Daele

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Solved: see https://forum.qt.io/topic/107325/ios-no-audio-when-mute-switch-is-on-other-apps
UNSOLVED iOS: no audio when mute switch is on (<> other apps)
• Marc_Van_Daele

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SOLVED How to open file with default application on Android (SDK 23 and above) using QDesktopServices
• Devoo

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Setting up FileProvider seems a lot of unnecessary somewhat complicated (for people who visit the Java side every two years...) work for keeping old apps running. Today I ran into a piece of Java code that enables openUrl: public static void allowUriSchemes() { if (android.os.Build.VERSION.SDK_INT >= 23) { // Regular file:// is disabled try { final Method m = StrictMode.class.getMethod("disableDeathOnFileUriExposure"); m.invoke(null); } catch (final Exception e) {} } }
SOLVED Wrong storage path on Android
• vlada

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Thank you, I found the problem. It was on my side. Strange that searching for the string in my whole project didn't find it, but the wrong path came a from a modification I did in build.gradle file.
SOLVED QML can't see font ascender on Embedded device
• carols

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Glad you found a solution and thanks for sharing ! That's a nice trick !
UNSOLVED a: cannot connect to X server :0.0 Application finished with exit code 1
• Sekhar

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It's in the documentation here.
SOLVED Cant install apk on my phone
• Dooham

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@Dooham It is solved. It was because I need to use the kit arm or arm64 depending on the version of your device. I was used the version x86 and that was the problem.