问题
I have a program that I have developed for mac osx. When the program is run from within Qt creator, a log file and a config.cfg file are created in the myapp.app/Contents/MacOS folder, alongside the executable. This is the correct behaviour, the program needs these files.
When I deploy the app to run standalone (by linking the required libraries using macdeploymentqt tool) the app launches and runs correctly however the log and config.cfg file do not get written to the myapp.app/Contents/MacOS folder and so settings can't be read in.
Is there anyway to get around this? Has anyone encountered this before?
Mitch
回答1:
osx will likely not allow you writing to your bundle location on installed apps, for security reasons and because it may conflict when multiple users are using your app.
To be cross platform, you could write instead to:
QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation)
which resolves to
~/Library/Application Support/<APPNAME>
and
C:/Users/<USER>/AppData/Local/<APPNAME>
or equivalent on windows.
回答2:
You're never supposed to write to the application bundle, whether on Mac or on Windows. Even on Windows, it will not work if your user isn't an administrator. This idea last made sense on Windows 95 - not even on Windows NT. Don't do it.
来源：https://stackoverflow.com/questions/29327857/qt-program-deployed-on-mac-config-file-not-writing-when-standalone-app-launched