After the mobile phone is connected to the computer, how can QT's QDIR read the mobile phone file path

Everybody knows Qt Of QFileSystemModel Class can build the file resource model on the hard disk , So as to realize simple file management and folder management , So how to get the files in the mobile phone ？ Do it here i Use a small test ：

Don't talk much Go straight to the code ：

QString filedir = QCoreApplication::applicationDirPath();
    QString filename = QFileDialog::getOpenFileName(
                            this,
                            " Please select the to open video.m4s file ",
                            filedir,
                            "m4s (video.m4s)");
    //  If you cancel opening, you will return to 
    if(filename==QString(""))
        return;

    //  Write file path 
    ui->lineEdit->setText(filename);

In the slot function, directly type the code as above , You can open the file dialog box , Search for files . Usually we find files on our own computer , such as ：

Now , I use my beloved little mobile phone USB Connecting to a computer , Open file operation permission , Have a try , Hey, you can see the mobile phone files

This is it. Android The internal files of the mobile phone . good , Now , We continue to test our code , Switch the directory to the mobile directory , And find what you want to open B Station file , such as ：

   This file is usually in android/data/tv.danmuku.bili/download/xxxxxxx/c_xxxxxxx/xx/ below . Please pay attention to the path shown in the figure above . Open at this time , As a result, the file path will become like this ：

have a look , Has it changed , I posted this path is ：

C:/Users/Jo/AppData/Local/Microsoft/Windows/Temporary Internet Files/Content.IE5/NY2XOM6A/video[1].m4s

C:/Users/Jo/AppData/Local/Microsoft/Windows/Temporary Internet Files/Content.IE5/4I7OJ28R/audio[1].m4s

in other words , Mobile phone files are actually stored in temporary files . We use the resource manager to find this path , Note that this path is hidden , You need to uncheck the hidden system file in the setting to find . This path can also be opened by browser , Is similar to the FTP The server ：

You'll find that , The documents inside are really messy , It's not a file on your phone , It's all temporary files . The mobile phone file you just found , It will also be in the temporary file .

So , Want to use QT Implement the file system model , It's still a long way to go ！

For all that , It still realizes reading mobile phone files , That's progress .