c++ - 如何从 qml 启动一个 Qthread？

Question

我需要立即启动，然后停止 Qml 文件中的 QThread 扩展类。有什么解决办法吗？这是我的课:

class SerialManager : public QThread
{
    Q_OBJECT
public:
    CircularList<unsigned char> buffer_[2];

signals:
    void dataReady(short *value,int len,unsigned short sample);

protected:
    void run();
};

Answer 1

如果你有这样的 SerialManager:

class SerialManager : public QThread
{
    Q_OBJECT
public:
    CircularList<unsigned char> buffer_[2];

signals:
    void dataReady(short *value,int len,unsigned short sample);

protected:
    void run();
};

在main.cpp中添加如下代码:

qmlRegisterType<SerialManager>("Device",1,0,"Serial");

然后在您的 qml 中执行此操作:

 Component.onCompleted: {
            thread.start()
        }
 Component.onDestruction:
    {
        thread.quit()

    }