Mobile and Embedded

@WR.Kim Qt version is not set in your Kit. CMake is not set in your Kit.

Did you find a solution to that ? I have the same problem.

I made some more digging and I found that it helps qtbase/src/platformsupport/input/tslib/qtslib.cpp:58 void QTsLibMouseHandler::readMouseData() { static ts_sample sample; while (get_sample(m_dev, &sample, m_rawMode)) { and also works this: void QTsLibMouseHandler::readMouseData() { ts_sample sample; qCDebug(qLcTsLib) << "hello"; while (get_sample(m_dev, &sample, m_rawMode)) { but why !?

@jcelerier said in qt.permissions: Could not find permission plugin for QBluetoothPermission. Please make sure you have included the required usage description in your Info.plist: I had this situation, it turns out you have to link explicitly with Qt6::QDarwinBluetoothPermissionPlugin Thank you!! This is exactly what I needed, and did not find anywhere else. If could give up-vote your reply multiple times, I would! 😊

@The-Qt-Mayssa I think we're talking in circles. If you want someone in the forum to analyze the problem, you need to provide a minimal reproducer. In the unlikely case that it's a bug in Qt, it won't be fixed in an EOL version. You will have to upgrade at some point anyway.

High SGaist, I think, that's what I was searching for. Thank You Marc

I too am facing the same issue of rectangle cropped diagonally in Android emulator, but works fine with kit as desktop The Qt version is 6.5.3 My desktop PC do not have GPU When i run the emulator from terminal i get the following message ERROR | Your GPU cannot be used for hardware rendering. Consider using software rendering. Could this be the problem

Update: I was able to work around this by binding a prebuilt Palette object (whose various color property values are all contingent on colorScheme) to the ApplicationWindow's palette property. That shows that the base palette still works, but not why it's failing to follow colorScheme by default (as is the case for Qt Widgets apps on Android or Qt Quick apps on other platforms).

That message show an architectural design flaw in QtCreator. I had the same problem. If I remember correctly, my system had another Java runtime besides the one in the JDK, and QtCreator used the false one for its configuration. Uninstalling that fixed things.

Interesting! I recently did some experimentation with Qt combined with IP camera, and I had less-than-ideal results (which I planned to revisit at some point but have not gotten around to). @woodpecker How is the timing/lag/performance? My principal issue was huge lag, which I also experienced when just using ffmpeg at the command line. (Since Qt uses ffmpeg under the hood I suspect the actual source of lag is therefore ffmpeg.) I had come across: https://forum.qt.io/topic/79208/how-to-kill-delay-in-live-streaming (which never got any reply at all) https://stackoverflow.com/questions/7759695/terrible-performance-with-qmediaplayer-and-qvideowidget But your (very) recent outcome will be of interest to myself and others! How's the lag? (Also, you mentioned 6.10.1 but can you also state which OS or OSes?) EDIT: Android is in the title! But still I'm curious if you build for Linux/Windows also?

@AlexandreM hey bro , how do you fix this bug???

thx sierdzio, you are right... itÄs not worth to support Android 8. I will use Qt 6.10... and unfortunately I cannot use my dusty old Android devices for development purposes.

Here is the application output when tracing the screen twice with the pen: 10:01:25: Android target "org.qtproject.example.MobileTablet" terminated. I/le.MobileTablet: Late-enabling -Xcheck:jni I/le.MobileTablet: Using CollectorTypeCMC GC. D/nativeloader: Load libframework-connectivity-tiramisu-jni.so using APEX ns com_android_tethering for caller /apex/com.android.tethering/javalib/framework-connectivity-t.jar: ok D/CompatibilityChangeReporter: Compat change id reported: 171979766; UID 10306; state: ENABLED D/CompatibilityChangeReporter: Compat change id reported: 242716250; UID 10306; state: ENABLED D/nativeloader: Configuring clns-6 for other apk /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk. target_sdk_version=36, uses_libraries=, library_path=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/lib/arm64:/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a, permitted_path=/data:/mnt/expand:/data/user/0/org.qtproject.example.MobileTablet D/nativeloader: Load libframework-connectivity-jni.so using APEX ns com_android_tethering for caller /apex/com.android.tethering/javalib/framework-connectivity.jar: ok V/GraphicsEnvironment: Currently set values for: V/GraphicsEnvironment: angle_gl_driver_selection_pkgs=[] V/GraphicsEnvironment: angle_gl_driver_selection_values=[] V/GraphicsEnvironment: ANGLE GameManagerService for org.qtproject.example.MobileTablet: false V/GraphicsEnvironment: org.qtproject.example.MobileTablet is not listed in per-application setting V/GraphicsEnvironment: App is not on the allowlist for updatable production driver. D/CompatibilityChangeReporter: Compat change id reported: 183155436; UID 10306; state: ENABLED D/MbrainDebugManagerImpl: getService failed D/libMEOW : meow new tls: 0xb400006efb5ff0b0 D/libMEOW : meow reload base cfg path: na D/libMEOW : meow reload overlay cfg path: na W/QT : qt_process_init() called E/QT : [QT]file does not exist W/QT : Support!! D/libMEOW : applied 0 plugin for [org.qtproject.example.MobileTablet]. D/libMEOW : rebuild call chain: 0xb400006efb5cf080 D/libMEOW : meow delete tls: 0xb400006efb5ff0b0 D/CompatibilityChangeReporter: Compat change id reported: 247079863; UID 10306; state: ENABLED W/le.MobileTablet: ClassLoaderContext parent mismatch. (PCL[] | PCL[];PCL[/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk*3949881819]) D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libc++_shared.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libQt6Core_arm64-v8a.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok I/QtCore : Start D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libQt6Gui_arm64-v8a.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libQt6Widgets_arm64-v8a.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libQt6Svg_arm64-v8a.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libQt6Network_arm64-v8a.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libQt6OpenGL_arm64-v8a.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libQt6Qml_arm64-v8a.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libQt6QmlModels_arm64-v8a.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libQt6QmlWorkerScript_arm64-v8a.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libQt6QmlMeta_arm64-v8a.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libQt6Quick_arm64-v8a.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libQt6VirtualKeyboard_arm64-v8a.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libplugins_platforms_qtforandroid_arm64-v8a.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok I/Qt : Qt platform plugin started D/nativeloader: Load /data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk!/lib/arm64-v8a/libMobileTablet_arm64-v8a.so using class loader ns clns-6 (caller=/data/app/~~GOZeW_WaqPAmQ16ve5Oomw==/org.qtproject.example.MobileTablet-YoP76MFWqX6LEnzPk2LCzQ==/base.apk): ok I/M-ProMotion: M-ProMotion is disabled D/CompatibilityChangeReporter: Compat change id reported: 210923482; UID 10306; state: ENABLED I/SurfaceFactory: [static] sSurfaceFactory = com.mediatek.view.impl.SurfaceFactoryImpl@f0a7a7c D/CompatibilityChangeReporter: Compat change id reported: 237531167; UID 10306; state: DISABLED W/OpenGLRenderer: Unknown dataspace 0 D/VRI[QtActivity]: hardware acceleration = true, forceHwAccelerated = false D/nativeloader: Load libpowerhalwrap_jni.so using system ns (caller=/system_ext/framework/mediatek-framework.jar): ok I/PowerHalWrapper: PowerHalWrapper.getInstance D/libMEOW : meow new tls: 0xb400006efb5cf080 D/libMEOW : applied 0 plugin for [org.qtproject.example.MobileTablet]. D/libMEOW : rebuild call chain: 0xb400006efb5df090 D/InputTransport: Create ARC handle: 0xb400006f9b59f1e0 D/InputEventReceiver: Input log is disabled in InputEventReceiver. D/InputTransport: Input log is disabled in InputChannel. D/BufferQueueConsumer: [](id:58d000000000,api:0,p:-1,c:22736) connect: controlledByApp=false E/FBI : Can't load library: dlopen failed: library "libmagtsync.so" not found D/libMEOW : meow new tls: 0xb400006efb5ef0a0 D/libMEOW : applied 0 plugin for [org.qtproject.example.MobileTablet]. D/libMEOW : rebuild call chain: 0xb400006efb63f0f0 E/OpenGLRenderer: Unable to match the desired swap behavior. D/libMEOW : meow new tls: 0xb400006efb61f0d0 D/libMEOW : applied 0 plugin for [org.qtproject.example.MobileTablet]. D/libMEOW : rebuild call chain: 0xb400006efb64f100 D/BLASTBufferQueue: [VRI[QtActivity]#0](f:0,a:1) acquireNextBufferLocked size=2200x1440 mFrameNumber=1 applyTransaction=true mTimestamp=369794844350688(auto) mPendingTransactions.size=0 graphicBufferId=97650376441857 transform=7 D/default : 0 : QEvent::Polish D/default : 1 : QEvent::PlatformSurface D/default : 2 : QEvent::WinIdChange D/default : 3 : QEvent::WindowIconChange D/default : 4 : QEvent::WindowStateChange D/default : 5 : QEvent::Move D/default : 6 : QEvent::Resize D/default : 7 : QEvent::Show D/default : 8 : QEvent::Resize D/default : 9 : QEvent::Paint Art: Cleared App Profiles. D/BufferQueueConsumer: [](id:58d000000001,api:0,p:-1,c:22736) connect: controlledByApp=false D/BLASTBufferQueue: [SurfaceView[org.qtproject.example.MobileTablet/org.qtproject.qt.android.bindings.QtActivity]#1](f:0,a:1) acquireNextBufferLocked size=2200x1321 mFrameNumber=1 applyTransaction=true mTimestamp=369795041337150(auto) mPendingTransactions.size=0 graphicBufferId=97650376441866 transform=7 D/default : 10 : QEvent::WindowActivate D/default : 11 : QEvent::ActivationChange D/default : 12 : QEvent::InputMethodQuery D/default : 13 : QEvent::InputMethodQuery D/default : 14 : QEvent::InputMethodQuery D/default : 15 : QEvent::InputMethodQuery I/ImeTracker: org.qtproject.example.MobileTablet:c71a8ff8: onRequestHide at ORIGIN_CLIENT_HIDE_SOFT_INPUT reason HIDE_SOFT_INPUT_BY_INSETS_API I/ImeTracker: org.qtproject.example.MobileTablet:c71a8ff8: onCancelled at PHASE_CLIENT_APPLY_ANIMATION D/default : 16 : QEvent::ShowToParent D/default : 17 : QEvent::PolishRequest D/default : 18 : QEvent::UpdateLater D/default : 19 : QEvent::UpdateRequest D/default : 20 : QEvent::Paint Art: Compiled App Profiles. I/le.MobileTablet: Compiler allocated 6094KB to compile void android.view.ViewRootImpl.performTraversals() D/ProfileInstaller: Installing profile for org.qtproject.example.MobileTablet W/default : QObject: Cannot create children for a parent that is in a different thread. W/default : (Parent is QApplication(0x6e8347b6e0), parent's thread is QThread(0xb400006fdb56af30), current thread is QThread(0xb400006fdb582e90) W/default : QObject: Cannot create children for a parent that is in a different thread. W/default : (Parent is QApplication(0x6e8347b6e0), parent's thread is QThread(0xb400006fdb56af30), current thread is QThread(0xb400006fdb582e90) D/default : 21 : QEvent::TabletPress D/default : 22 : QEvent::UpdateRequest D/default : 23 : QEvent::Paint D/default : 24 : QEvent::TabletMove D/default : 25 : QEvent::InputMethodQuery D/default : 26 : QEvent::InputMethodQuery D/default : 27 : QEvent::InputMethodQuery D/default : 28 : QEvent::InputMethodQuery D/default : 29 : QEvent::UpdateRequest D/default : 30 : QEvent::Paint D/default : 31 : QEvent::InputMethodQuery D/default : 32 : QEvent::InputMethodQuery D/default : 33 : QEvent::InputMethodQuery D/default : 34 : QEvent::InputMethodQuery D/default : 35 : QEvent::InputMethodQuery D/default : 36 : QEvent::InputMethodQuery D/default : 37 : QEvent::InputMethodQuery D/default : 38 : QEvent::TabletRelease D/default : 39 : QEvent::UpdateRequest I/ScrollIdentify: on fling D/default : 40 : QEvent::Paint D/default : 41 : QEvent::ToolTip W/le.MobileTablet: userfaultfd: MOVE ioctl seems unsupported: Connection timed out D/default : 42 : QEvent::TabletPress D/default : 43 : QEvent::UpdateRequest D/default : 44 : QEvent::Paint D/default : 45 : QEvent::TabletMove D/default : 46 : QEvent::UpdateRequest D/default : 47 : QEvent::Paint D/default : 48 : QEvent::InputMethodQuery D/default : 49 : QEvent::InputMethodQuery D/default : 50 : QEvent::InputMethodQuery D/default : 51 : QEvent::InputMethodQuery D/default : 52 : QEvent::InputMethodQuery D/default : 53 : QEvent::InputMethodQuery D/default : 54 : QEvent::InputMethodQuery D/default : 55 : QEvent::TabletRelease D/default : 56 : QEvent::UpdateRequest I/ScrollIdentify: on fling D/default : 57 : QEvent::Paint D/default : 58 : QEvent::ToolTip

Thanks for the reply, I didn't realize that I wouldn't get any notifications for replies (or at least I don't see anything in the notifications history here nor any emails about it). I don't see how the --copy-dependencies-only option would be helpful though, especially since I don't see a matching option to continue building the APK afterwards, unless I'm supposed to run ./gradlew assembleDebug or similar to do so. I did try running the same androiddeployqt command that Qt Creator seems to run but with the --copy-dependencies-only option added, then deleting the FluentWinUI3 style libraries to start with and then running ./gradlew installDebug, which did seem to shrink the installed app's size in the emulator but made the app crash. I also tried to use the QT_ANDROID_DEPLOYMENT_DEPENDENCIES CMake target property by setting it to all the dependencies reported by androiddeployqt's verbose output when run by Qt Creator, with that method when I remove the FluentWinUI3 style files from the list I do get a smaller APK and the app runs, however the Magnetometer object from the QtSensors library appears to break instead, it is no longer able to give me any readings, and it works again if I remove the QT_ANDROID_DEPLOYMENT_DEPENDENCIES CMake property. The Magnetometer object still refuses to work even after I add back that FluentWinUI3 stuff, so the number of dependencies reported by androiddeployqt is the same before and after I add the CMake property. I don't see any log entries even in debug mode, the start method of the magnetometer just returns false, the connectedToBackend property is false and the error code stays 0 so I can't tell exactly what the issue is (it's the same behavior I observe if I run the app on my Linux desktop natively which lacks the sensor at all). So, it seems like with either the --copy-dependencies-only androiddeployqt method or the QT_ANDROID_DEPLOYMENT_DEPENDENCIES CMake method there's a missing step somewhere that breaks things one way or the other. Although I do see that the documentation page for that CMake variable says that the order of the dependencies in the list matters, so next step for me will be to inspect the dependency order in the androiddeployqt verbose output and try rearranging things to see if that makes a difference, since the order is currently just the order androiddeployqt copies the files.