界面切换之飞入飞出

用QT实现的一个简单动画，比较简单

所以，直接上代码，呵呵。

[cpp] view plaincopyprint?

1. //tqt.h
2. #ifndef TQT_H_
3. #define TQT_H_
4. #include <QtGui>
5. #include <QtCore>
6. class Widget : public QWidget
7. {
8. Q_OBJECT
9. private:
10. QFrame *frame[10];
11. QPushButton *prevButton;
12. QPushButton *nextButton;
13. QPropertyAnimation *animation1;
14. QPropertyAnimation *animation2;
15. QSequentialAnimationGroup *animationGroup;
16. QSize winSize;
17. int index;
18. bool isChanging;
19. protected:
20. void resizeEvent(QResizeEvent *event);
21. public:
22. Widget(QWidget *parent = 0);
23. ~Widget();
24. public slots:
25. void clickedPrevButton();
26. void clickedNextButton();
27. void animationFinished();
28. };
29. #endif
30. //tqt.cpp
31. #include "tqt.h"
32. Widget::Widget(QWidget *parent /* = 0 */)
33. : QWidget(parent)
34. {
35. setWindowTitle("Widget");
36. resize(400, 300);
37. animation1 = new QPropertyAnimation(this);
38. animation2 = new QPropertyAnimation(this);
39. animationGroup = new QSequentialAnimationGroup;
40. prevButton = new QPushButton("prev", this);
41. nextButton = new QPushButton("next", this);
42. QHBoxLayout *subLayout = new QHBoxLayout;
43. QVBoxLayout *layout = new QVBoxLayout;
44. subLayout->addStretch();
45. subLayout->addWidget(prevButton);
46. subLayout->addWidget(nextButton);
47. subLayout->addStretch();
48. layout->addStretch();
49. layout->addLayout(subLayout);
50. setLayout(layout);
51. winSize = size();
52. index = 0;
53. for(int i=0; i<10; i++)
54. {
55. frame[i] = new QFrame(this);
56. frame[i]->setObjectName("avatar");
57. //0.jpg~9.jpg是当前目录下的10张图片
58. QString str = QString("QFrame#avatar{border-image:url(%1.jpg)}")
59. .arg( QString::number(i) );
60. frame[i]->setStyleSheet(str);
61. }
62. prevButton->setEnabled(false);
63. animation1->setStartValue( QPoint(winSize.width()/3, 10) );
64. animation1->setEndValue( QPoint(winSize.width(), 10) );
65. animation1->setDuration(2000);
66. animation1->setPropertyName("pos");
67. animation2->setStartValue( QPoint(-winSize.width()/3, 10) );
68. animation2->setEndValue( QPoint(winSize.width()/3, 10) );
69. animation2->setDuration(2000);
70. animation2->setPropertyName("pos");
71. animationGroup->addAnimation(animation1);
72. animationGroup->addAnimation(animation2);
73. index = 0;
74. animation1->setTargetObject(frame[index]);
75. isChanging = false;
76. connect(prevButton, SIGNAL(clicked()), this, SLOT(clickedPrevButton()));
77. connect(nextButton, SIGNAL(clicked()), this, SLOT(clickedNextButton()));
78. connect(animationGroup, SIGNAL(finished()), this, SLOT(animationFinished()));
79. }
80. Widget::~Widget()
81. {
82. }
83. void Widget::resizeEvent(QResizeEvent *event)
84. {
85. winSize = size();
86. for(int i=0; i<10; i++)
87. frame[i]->setGeometry(-winSize.width()/3, 10, winSize.width()/3, winSize.height()-50);
88. frame[index]->setGeometry(winSize.width()/3, 10, winSize.width()/3, winSize.height()-50);
89. animation1->setStartValue( QPoint(winSize.width()/3, 10) );
90. animation1->setEndValue( QPoint(winSize.width(), 10) );
91. animation2->setStartValue( QPoint(-winSize.width()/3, 10) );
92. animation2->setEndValue( QPoint(winSize.width()/3, 10) );
93. }
94. void Widget::clickedPrevButton()
95. {
96. if(isChanging)
97. return;
98. nextButton->setEnabled(true);
99. isChanging = true;
100. setFixedSize(winSize.width(), winSize.height());
101. index--;
102. animation2->setTargetObject(frame[index]);
103. animationGroup->start();
104. if(index <= 0)
105. prevButton->setEnabled(false);
106. }
107. void Widget::clickedNextButton()
108. {
109. if(isChanging)
110. return;
111. prevButton->setEnabled(true);
112. isChanging = true;
113. setFixedSize(winSize.width(), winSize.height());
114. index++;
115. animation2->setTargetObject(frame[index]);
116. animationGroup->start();
117. if(index >= 9)
118. nextButton->setEnabled(false);
119. }
120. void Widget::animationFinished()
121. {
122. isChanging = false;
123. setMaximumSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX);
124. animation1->setTargetObject(frame[index]);
125. }
126. //main.cpp
127. #include "tqt.h"
128. int main(int argc, char **argv)
129. {
130. QApplication app(argc, argv);
131. Widget *widget = new Widget;
132. widget->show();
133. return app.exec();
134. }

本程序有10张图片，按prev, next可前后切换

http://blog.csdn.net/small_qch/article/details/6858611