Files from Assetsfolder in C++

patrikd

Hi All,
I think I don't get the point with the assets folder. I want to deploy some files with the assets folder (not in a qrc).
Within qml I can perfectly access them with:

Qt.resolvedUrl("../../assets/" + fileName)

But I can't get them within C++:

QFile file("assets:/" + fileName);

From what I have read the "assets:/" works like the "file:/" prefix but I always get fileExists false in C++. But its there because from qml I can access it.....

Any hints?
Best,
Patrik

JonB

@patrikd
What platform are you on? I read that QFile("assets:/") is Android only, but you don't say.

Otherwise you may need to state your Qt version, e.g. https://stackoverflow.com/questions/48211797/copy-file-from-assets-to-permanent-location-qt-android.

patrikd

I'm currently trying it on Android and Win-Desktop. Both not working. Qt 5.13.2.

raven-worx

@patrikd
just to clarify it wont work on Windows, only on Android (device and emulator).
Any chance you simply incorrectly assume that those 2 paths point to the same file?!
Simply traverse the "assets:/" root folder and check it's contents.

patrikd

@raven-worx
Hi Raven,

so if I make:

    QDir dir("assets:"); //with / and without /
    QFileInfoList list = dir.entryInfoList();
    for (int i = 0; i < list.size(); ++i) {
        QFileInfo fileInfo = list.at(i);
        qDebug() << fileInfo.fileName();
    }

Nothing is printed out.
Is there a C++ equivalent for:

Qt.resolvedUrl("../../assets/" + fileName)

? Because this one works like charm on Android, iOS, Windows and MacOs.
In my .pro file I have:

assetsFolder.source = assets
DEPLOYMENTFOLDERS += assetsFolder

Thx,
Patrik

raven-worx

@patrikd said in Files from Assetsfolder in C++:

Because this one works like charm on Android, iOS, Windows and MacOs.

What?!
assets: is just for accessing Android's assets resources.

Qt.resolvedUrl() loads relative urls from it's loading url context.
I don't know your exact desired folder structure.
Are you actually trying to read files from the filesystem?
How are you loading your inital QML root file actually?

patrikd

@raven-worx
Entry point:

    felgo.setMainQmlFileName(QStringLiteral("qml/Main.qml"));
    engine.load(QUrl(felgo.mainQmlFileName()));

With the setting in the pro file I get the asset folder deployed on all plattforms. So the folder is in a way accesible. But
I don't get it in C++.

Here the folders:

Thx,
Patrik