一个qt 动画 实例

#include "bird.h"#include <QtGui/QApplication>#include <QtGui/qlabel.h>#include <QPixmap>#include <QPropertyAnimation>#include <qparallelanimationgroup.h>int main(int argc, char *argv[]){QApplication a(argc, argv);//bird w;//w.show();//return a.exec();QWidget* w = new QWidget();w->resize(300,400);QPixmap birding = QPixmap("b1.jpg").scaled(100,123);QLabel *bird_1 = new QLabel(w);QLabel *bird_2 = new QLabel(w);bird_1->setPixmap(birding);bird_2->setPixmap(birding);bird_1->setHidden(1);QPropertyAnimation *anm1=new QPropertyAnimation(bird_1,"pos");anm1->setDuration(2000);anm1->setStartValue(QPoint(0,360));anm1->setEndValue(QPoint(210,0));anm1->setEasingCurve(QEasingCurve::OutInElastic);QPropertyAnimation *anm2=new QPropertyAnimation(bird_2,"pos");anm2->setDuration(2000);anm2->setStartValue(QPoint(210,360));anm2->setEndValue(QPoint(0,0));anm2->setEasingCurve(QEasingCurve::OutInElastic);QParallelAnimationGroup group;group.addAnimation(anm1);group.addAnimation(anm2);group.start();bird_1->move(-40,-40);bird_2->move(-40,-40);w->show();a.exec();}