Mobile and Embedded

Here is my code the fit (in heigth) a text, works quite well (error < 2% I guess) : void scalePainterFontSizeToFit(QPainter &painter, QFont &r_font, float _heightToFitIn) { float oldFontSize, newFontSize, oldHeight; // Init oldFontSize=r_font.pointSizeF(); // Loop for (int i=0 ; i<3 ; i++) { oldHeight = painter.fontMetrics().boundingRect('D').height(); newFontSize = (_heightToFitIn / oldHeight) * oldFontSize; r_font.setPointSizeF(newFontSize); painter.setFont(r_font); oldFontSize = newFontSize; //qDebug() << "OldFontSize=" << oldFontSize << "HtoFitIn=" << _heightToFitIn << " fontHeight=" << oldHeight << " newFontSize=" << newFontSize; } // End r_font.setPointSizeF(newFontSize); painter.setFont(r_font); }

Hi, That's a question best suited for the interest mailing list. You'll find there Qt's developers/maintainers. This forum is more user oriented.

No, one does not need to use Qt classes. Just about any C++ or C can do for the business logic, but Qt-derived classes would be the glue between QML and those.

@Qojote Thank you and congratulations for giving all the details for solving this old and apparently common problem! Without the smallest details, this kind of things are never solved.

Hi! The 'QAudioRecorder::setEncodingSettings' method takes 3 parameters: 'const QAudioEncoderSettings & audio', 'const QVideoEncoderSettings & video', and 'const QString & container'. The codec you defined does not define the type of file that will recorded. This is done by the 'container' parameter. If you let it undefined, the OS will choose what ever it wants. My experience is that on iOS it chooses "wav", while on Android it chooses "mp4". So, I know 3 ways: you can set the value of 'container', and hope it works on your device; you can leave it to the OS, as I said above; you can examine the 'QStringList QAudioRecorder::supportedContainers() const', and choose one. Oh, the 'video' parameter I use 'QVideoEncoderSettings()' default constructor. Good luck!

The Qt and Android utilities are not installed on a system-wide standard path on that computer. So, I thought I might want to add these directories to the PATH environment variable. See https://forum.qt.io/topic/38255/solved-cannot-read-from-input-file-android-lib-so-deployment-settings-json/2 So, I set my PATH: (but it still doesn't work) :: Check if our bin path is already in PATH :: Add it if not. (permanently change it in the registry) :: See HKEY_CURRENT_USER/Environment/PATH SET PATH_ANDROID_BIN="%SOFTEXT_PATH%\Android\android-sdk\build-tools" SET PATH_MINGW_BIN="%SOFTEXT_PATH%\Android\mingw530_32\bin" SET PATH_QT_BIN="%SOFTEXT_PATH%\Qt\5.7\android_armv7\bin" SET PATHTOADD="%PATH_MINGW_BIN%;%PATH_QT_BIN%;%PATH_ANDROID_BIN%" ECHO "%PATH" | FIND /C:"%PATHTOADD%" >nul & IF ERRORLEVEL 1 ( ECHO "The path to the Android utils is a already in PATH" ECHO "PATH: %PATH%" ) else ( ECHO "Adding the path to the Android utils to PATH" ECHO "Beware that the PATH cannot have more than 1024 characters." :: Note that the separator is ";" SETX PATH "%PATH%;%PATHTOADD%" ECHO "New PATH: %PATH%" )

@SGaist Unfortunately that did not work. For now, I'm going to mark this as solved as my previous fix is good enough for now. Thanks!

@pgmQt What do you mean by "server no longer recognizes the messages"? Does the server get the messages but cannot interpret them, or are there no messages on the server side? If the server gets the messages you can just check their content to see whether messages are valid or not.

Thank you so much for your recommendation! I will follow up with them.

I found the root cause of this issue. https://bugreports.qt.io/browse/QTBUG-52949 It was a bug of Lollipop 5.0. The bug was first fixed in version 5.1.1_r1. https://code.google.com/p/android/issues/detail?id=160824

@shav, thanx for solution! I'll try it. @SGaist said: Also, what do you mean by APNs does not work ? You don't receive any notifications anymore ? Sending notifications fails ? iOS not give me APNs token. In new API token request must use UserNotifications.framework: UNUserNotificationCenter* center = [UNUserNotificationCenter currentNotificationCenter]; [center requestAuthorizationWithOptions:(UNAuthorizationOptionAlert + UNAuthorizationOptionSound) completionHandler:^(BOOL granted, NSError * _Nullable error) { // Enable or disable features based on authorization. }]; I implement APNs in my QIOSApplicationDelegate

Hi and welcome to devnet, Wrappers around a native web view can be found in the QtWebView module.

@sandy.martel23 thank you very much!

@raven-worx I didn't find the tool but tried every format to make it bootable. Result didn't change.

Hi and welcome to devnet, How did you install Qt in the first place ?