Qt QLabel标签添加点击事件

.h

//给label添加事件
bool eventFilter(QObject *obj, QEvent *event);

.cpp

bool MainWindow::eventFilter(QObject *obj, QEvent *event){
    //mouse button pressed
    if (event->type() == QEvent::MouseButtonPress){
        QMouseEvent *mouseEvent = static_cast<QMouseEvent*>(event);
        if(mouseEvent->button() == Qt::LeftButton){
            if(obj == ui->label_avator){
                qDebug()<<"在这里写点击事件";
                return true;
            }else{
                return false;
            }
        }else{
            return false;
        }
    }else{
        return QObject::eventFilter(obj, event);
    }
}

最后给QLabel添加事件过滤

ui->label_avator->installEventFilter(this);