QMovie can not change file

sonichy

I am write a program of GIFPlayer, but I can not change gif by open file on Linux Qt 5.6.1.

void MainWindow::on_action_open_triggered()
{
    filename = QFileDialog::getOpenFileName(this, "open file", ".", "GIF(*.gif)");
    if(!filename.isEmpty()){
        movie->setFileName(filename);
        ui->label->setMovie(movie);
        movie->start();
    }
}

Ratzz

@sonichy

I tried the same code its working here on windows Qt 5.9.3.

sonichy

On Windows Qt 5.8, the problem is the same.
But I find another way to solve this problem:
Run QMovie as background, connect frameChange, return currentPixmap()

{
    QMovie movie = new QMovie;
    connect(movie,SIGNAL(frameChanged(int)),this,SLOT(frameChange(int)));
}

void MainWindow::loadImage(QString spath)
{
    movie->stop();
    QString MIME = QMimeDatabase().mimeTypeForFile(spath).name();
    if(MIME == "image/gif"){
        movie->setFileName(spath);
        movie->start();
    }else{
        // bmp, jpg, png...
    }
}

void MainWindow::frameChange(int fn)
{
    ui->label->setPixmap(movie->currentPixmap());
}