Qt5 (c++) android listening for system buttons

Question

I want to use the menu button in my android app (4.x so usually software, not hardware buttons) but I can't find a suitable QEvent to do so. I tried to do

bool GLViewer::event(QEvent * e){
    qDebug()<<e->type();
}

But pressing the menu button had no output, I'm assuming because the menu button is outside the widget. How do I listen for this type of event?

Answer 1

作为此阅读后 ，您可以在主窗口上使用的keyReleaseEvent（）。