How to list all drives under Windows using QML

jiangcaiyang

Hi, I am making a small file browser using a laboratory module "Qt.labs.folderlistmodel 2.1", it works fine except that it cannot list the drives under Windows.
In C++, when setting QFileSystemModel::setRootPath(""); the drives are given. So is there a better way to work around with QML?

Moore Tides

I am having trouble with this too, but I might have something that works now... In C++ you can list the drives with QInfoList infoList = QDir::drives();, but setting the folder of FolderListModel is kind of tricky. I am working with resources, so "/" will list the root of my resource file, and any invalid URL just lists the current directory. As a quick proof of concept I got it to work with the following:

util.h


#include <QtCore>

class Util: public QObject
{
    Q_OBJECT
public:
    explicit Util(QObject *parent = 0);

    Q_INVOKABLE static QStringList drives();
};

util.cpp

#include "util.h"
#include <QDir>
#include <QFileInfo>

Util::Util(QObject *parent)
: QObject(parent)
{
}

QStringList Util::drives()
{
    QStringList ret;
    foreach (QFileInfo info, QDir::drives()) {
        ret << info.absolutePath();
    }
    return ret;
}

main.qml

import QtQuick 2.0
import Qt.labs.folderlistmodel 2.1

Rectangle {
    width: 800
    height: 600
    visible: true
    property var drives: Util.drives()
    ListView {
        anchors.fill: parent
        FolderListModel {
            id: folderModel
            nameFilters: ["*"]
            folder: "file:" + drives[0]
        }           
        model: folderModel
        delegate: Component {
            id: fileDelegate
            Text { text: fileName }
        }
    }
}

main.cpp

#include "util.h"
#include <QGuiApplication>
#include <QQuickView>
#include <QQmlContext>

int main(int argc, char *argv[])
{
	QGuiApplication app(argc, argv);
	/* QML class types */
	qmlRegisterType<Util>("NotUsed", 1, 0,
				      "Util_Class");
	QQuickView view(QUrl(QLatin1String("main.qml")));
	view.rootContext()->setContextProperty("Util", new Util(&view));
	view.show();
	return app.exec();
}

sagarbade

@Moore-Tides Hello As you take Folderlistmodel as model it returns all files from drives[0] (C:/) ..try this
//main.cpp
GetDrives myDrives;
QQmlContext *ctxtforDrives=engine.rootContext();
QStringList Driveslist=myDrives.drives()
ctxtforDrives->setContextProperty("DrivesModel", QVariant::fromValue(Driveslist));
//qml
set model=DrivesModel