Qt -实现QKeyEvent

Question

如何在Qt中实现键盘监听？我有以下设置，但不起作用。我有两个类，gameLogic和gameView。gameView有一个gameLogic实例：

gameView::gameView(QWidget *parent)
    : QWidget(parent)
{
    logic = new gameLogic(6);
    logic->setFocusPolicy(Qt::TabFocus); //in one of the articles I read, this was supposed to fix the issue. It doesn't for me.
    this->resize(1200, 700);
    this->setStyleSheet("background-color: white");
    QString str;
    str.setNum(logic->n);
    connect(logic, SIGNAL(playerStepped(int, int)), this, SLOT(movePlayer(int, int)));    
}

在gameLogic中，我按如下方式处理击键：

void gameLogic::keybrdStep( QKeyEvent * keypressed )
{
    if (keypressed->key() == Qt::Key_Q) {
        _message = new QMessageBox;
        _message->setText("Q");
        _message->exec();
    }
}

无论我按下Q键多少次，都没有反应。我做错了什么？我漏掉了哪一部分？我使用的是Linux Mint和最新版本的Qt。

Answer 1

void gameLogic::keybrdStep( QKeyEvent * keypressed )

你从哪里得到方法名"keybrdStep“的？你认为应该给谁打电话？

您需要重写以获取按键操作的方法的名称为QWidget::keyPressEvent()