QT:获取文件信息之创建日期方法created()方法--废弃

fileinfo.cpp:90:30: warning: 'created' is deprecated: Use either birthTime() or metadataChangeTime()
qfileinfo.h:137:5: note: 'created' has been explicitly marked deprecated here
qglobal.h:294:33: note: expanded from macro 'QT_DEPRECATED_X'
qcompilerdetection.h:676:55: note: expanded from macro 'Q_DECL_DEPRECATED_X'

QFileInfo::created()方法已被标记为废弃(deprecated)，建议使用birthTime()或metadataChangeTime()替代

建议使用新方法birthTime()明确表示获取文件出生时间（创建时间），而metadataChangeTime()获取元数据修改时间，语义更清晰。

/**************

 QString file = fileNameLineEdit->text();

    QFileInfo info(file);

    qint64 size = info.size();

   QDateTime created = info.birthTime() ;
*********************/

 

头文件 FILEINFO.H 

#ifndef FILEINFO_H
#define FILEINFO_H

#include <QDialog>
#include <QLabel>
#include <QLineEdit>
#include <QPushButton>
#include <QCheckBox>
#include <QComboBox>
#include <QGroupBox>

class FileInfo : public QDialog
{
    Q_OBJECT

public:
    FileInfo(QWidget *parent = nullptr,Qt::WindowFlags f=0);
    ~FileInfo();

public slots:
    void slotFile();
    void slotGet();

private:
    QLabel *fileNameLabel;
    QLineEdit *fileNameLineEdit;
    QPushButton *fileBtn;

    QLabel *sizeLabel;
    QLineEdit *sizeLineEdit;

    QLabel *createTimeLabel;
    QLineEdit *createTimeLineEdit;
    QLabel *lastModifiedLabel;
    QLineEdit *lastModifiedLineEdit;
    QLabel *lastReadLabel;
    QLineEdit *lastReadLineEdit;

    QLabel *propertyLabel;
    QCheckBox *isDirCheckBox;
    QCheckBox *isFileCheckBox;
    QCheckBox *isSymLinkCheckBox;
    QCheckBox *isHiddenCheckBox;
    QCheckBox *isReadableCheckBox;
    QCheckBox *isWritableCheckBox;
    QCheckBox *isExecutableCheckBox;
    //QCheckBox *isCheckBox;
    QPushButton *getBtn;

};
#endif // FILEINFO_H

　　

 

源文件fileinfo.cpp 

#include "fileinfo.h"
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <QFileDialog>
#include <QDateTime>

FileInfo::FileInfo(QWidget *parent, Qt::WindowFlags f)
    : QDialog(parent, f)
{

    fileNameLabel = new QLabel(tr("文件名："));
    fileNameLineEdit = new QLineEdit;
    fileBtn = new QPushButton(tr("文件"));
    sizeLabel = new QLabel(tr("大小："));
    sizeLineEdit = new QLineEdit;

    createTimeLabel = new QLabel(tr("创建时间："));
    createTimeLineEdit = new QLineEdit;
    lastModifiedLabel = new QLabel(tr("最后修改时间："));
    lastModifiedLineEdit = new QLineEdit;
    lastReadLabel = new QLabel(tr("最后访问时间："));
    lastReadLineEdit = new QLineEdit;

    propertyLabel = new QLabel(tr("属性："));
    isDirCheckBox = new QCheckBox(tr("目录"));
    isFileCheckBox = new QCheckBox(tr("文件"));
    isSymLinkCheckBox = new QCheckBox(tr("符号连接"));
    isHiddenCheckBox = new QCheckBox(tr("隐藏"));
    isReadableCheckBox = new QCheckBox(tr("读"));
    isWritableCheckBox = new QCheckBox(tr("写"));
    isExecutableCheckBox = new QCheckBox(tr("执行"));
    //isCheckBox = new QCheckBox(tr(""));
    getBtn = new QPushButton(tr("获得文件信息"));

    QGridLayout *gridLayout = new QGridLayout;
    gridLayout->addWidget(fileNameLabel,0,0);
    gridLayout->addWidget(fileNameLineEdit,0,1);
    gridLayout->addWidget(fileBtn,0,2);
    gridLayout->addWidget(sizeLabel,1,0);
    gridLayout->addWidget(sizeLineEdit,1,1);
    gridLayout->addWidget(createTimeLabel,2,0);
    gridLayout->addWidget(createTimeLineEdit,2,1);
    gridLayout->addWidget(lastModifiedLabel,3,0);
    gridLayout->addWidget(lastModifiedLineEdit,3,1,1,2);
    gridLayout->addWidget(lastReadLabel,4,0);
    gridLayout->addWidget(lastReadLineEdit,4,1,1,2);
    //gridLayout->addWidget(,,);

    QHBoxLayout *layout2 = new QHBoxLayout;
    layout2->addWidget(propertyLabel);
    layout2->addStretch();

    QHBoxLayout *layout3 = new QHBoxLayout;
    layout3->addWidget(isDirCheckBox);
    layout3->addWidget(isFileCheckBox);
    layout3->addWidget(isSymLinkCheckBox);
    layout3->addWidget(isHiddenCheckBox);
    layout3->addWidget(isReadableCheckBox);
    layout3->addWidget(isWritableCheckBox);
    layout3->addWidget(isExecutableCheckBox);

    QHBoxLayout *layout4 = new QHBoxLayout;
    layout4->addWidget(getBtn);

    QVBoxLayout *mainLayout = new QVBoxLayout(this);
    mainLayout->addLayout(gridLayout);
    mainLayout->addLayout(layout2);
    mainLayout->addLayout(layout3);
    mainLayout->addLayout(layout4);

    connect(fileBtn,SIGNAL(clicked()),this,SLOT(slotFile()));
    connect(getBtn,SIGNAL(clicked()),this,SLOT(slotGet()));
}

FileInfo::~FileInfo()
{
}

void FileInfo::slotFile()
{
    QString fileName = QFileDialog::getOpenFileName(this,"打开","/","files(*)");
    fileNameLineEdit->setText(fileName);
}

void FileInfo::slotGet()
{
    QString file = fileNameLineEdit->text();
    QFileInfo info(file);
    qint64 size = info.size();
   QDateTime created = info.birthTime() ;
  //  QDateTime created = info.created();
    QDateTime lastModified = info.lastModified(); //最后修改时间
    QDateTime lastRead = info.lastRead();

    bool isDir = info.isDir();
    bool isFile = info.isFile();
    bool isSymLink = info.isSymLink();
    bool isHidden = info.isHidden();
    bool isReadable = info.isReadable();
    bool isWritable = info.isWritable();
    bool isExecutable = info.isExecutable();

    sizeLineEdit->setText(QString::number(size));
    createTimeLineEdit->setText(created.toString());
    lastModifiedLineEdit->setText(lastModified.toString());
    lastReadLineEdit->setText(lastRead.toString());
    isDirCheckBox->setCheckState(isDir?Qt::Checked:Qt::Unchecked);
    isFileCheckBox->setCheckState(isFile?Qt::Checked:Qt::Unchecked);
    isSymLinkCheckBox->setCheckState(isSymLink?Qt::Checked:Qt::Unchecked);
    isHiddenCheckBox->setCheckState(isHidden?Qt::Checked:Qt::Unchecked);
    isReadableCheckBox->setCheckState(isReadable?Qt::Checked:Qt::Unchecked);
    isWritableCheckBox->setCheckState(isWritable?Qt::Checked:Qt::Unchecked);
    isExecutableCheckBox->setCheckState(isExecutable?Qt::Checked:Qt::Unchecked);

}

　　

 

运行效果：