小编use*_*381的帖子

我需要一些关于Qtimer使用的帮助.

我使用Qt 5.0.2和我的问题:

我正在尝试开发一个Timer,界面很简单:

只有2个按钮:按钮"开始",启动计时器,"暂停"按钮,以及QtimeEdit显示时间.

此屏幕截图显示了它的外观:http://img834.imageshack.us/img834/1046/5ks6.png

问题是暂停功能不起作用.我在这里阅读了有关Qtimer的所有文档:http://harmattan-dev.nokia.com/docs/library/html/qt4/qtimer.html和这里:qt.developpez.com/doc/5.0-snapshot/qtimer/ ,但没有结果.

这是我的源代码:(我只提供了所需的内容)

// Creation of the Buttons and the time area
void MainWindow::createBottom()
{

    bottom = new QWidget();

    play = new QPushButton("Launch",this);
    pause = new QPushButton("Pause",this);
    play->setDisabled(false);
    pause->setDisabled(true);
    timeEdit = new QTimeEdit(this);
    timeEdit->setDisplayFormat("mm:ss");

    layout->addWidget(play);
    layout->addWidget(pause);
    layout->addWidget(timeEdit );
    bottom->setLayout(layout);

    connect(play, SIGNAL(clicked()), this, SLOT(startSimulation()));
    connect(pause, SIGNAL(clicked()), this, SLOT(pauseSimulation()));
}

// to resume the timer where is was stopped
void MainWindow::resumeSimulation()
{
    timer->blockSignals( false );
    pause->setText("Pause");
    pause->disconnect(SIGNAL(clicked()));
    connect(pause, SIGNAL(clicked()), this, SLOT(pauseSimulation())); …