QFileSystemModel a simple file explorer

效果图

【dialog.h】

#ifndef DIALOG_H
#define DIALOG_H

#include <QDialog>
#include <QFileSystemModel>
namespace Ui {
class Dialog;
}

class Dialog : public QDialog
{
    Q_OBJECT

public:
    explicit Dialog(QWidget *parent = 0);
    ~Dialog();

private slots:
    void on_treeView_clicked(const QModelIndex &index);

private:
    Ui::Dialog *ui;
    QFileSystemModel *dirmodel;
    QFileSystemModel *filemodel;
};

#endif // DIALOG_H

【dialog.cpp】

#include "dialog.h"
#include "ui_dialog.h"

Dialog::Dialog(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::Dialog)
{
    ui->setupUi(this);
    QString sPath = "/Users/zdy/Desktop";
    dirmodel = new QFileSystemModel(this);
    dirmodel->setFilter(QDir::NoDotAndDotDot|QDir::AllDirs);
    dirmodel->setRootPath(sPath);
    ui->treeView->setModel(dirmodel);

    filemodel = new QFileSystemModel(this);
    filemodel->setRootPath(sPath);
    ui->listView->setModel(filemodel);

}

Dialog::~Dialog()
{
    delete ui;
}

void Dialog::on_treeView_clicked(const QModelIndex &index)
{

    QString sPath = dirmodel->fileInfo(index).absoluteFilePath();
    ui->listView->setRootIndex(filemodel->setRootPath(sPath));
}