Qt状态机实例
#include <QApplication>#include <QStateMachine>#include <QPushButton>#include <QSignalTransition>#include <QPropertyAnimation>int main(int argc,char **argv){ QApplication app(argc,argv); QWidget *w=new QWidget; w->resize(240,320); QPushButton *button = new QPushButton("hicjiajia",w); QStateMachine *machine = new QStateMachine; //新建状态机 QState *state1 = new QState(machine); //状态1 state1->assignProperty(button,"geometry",QRect(0,0,80,30)); //绑定button的geomertry属性 machine->setInitialState(state1); //state1设为初始化状态 QState *state2 = new QState(machine); state2->assignProperty(button,"geometry",QRect(w->width()-30,w->height()-80,30,80)); QFont font = QFont("Airl", 12); state2->assignProperty(button,"font",font); //状态2字体 QPropertyAnimation *ani=new QPropertyAnimation(button,"geometry"); ani->setDuration(2000); ani->setEasingCurve(QEasingCurve::OutBounce); //动画效果—弹跳 QSignalTransition *transition1=state1->addTransition(button,SIGNAL(clicked()),state2); //动画触发信号 transition1->addAnimation(ani); QSignalTransition *transition2=state2->addTransition(button,SIGNAL(clicked()),state1); transition2->addAnimation(ani); machine->start(); //开启状态机 w->show(); return app.exec();}