修改 我有一个应用程序,它使用swing Timer来控制动作侦听器接口何时触发。鼠标逻辑可以工作,但偶尔也不会检测到点击。以下是我的评论代码。
public class Board extends JPanel implements MouseListener, MouseMotionListener, ActionListener
{
private MainMenu mainMenu = new MainMenu();
private static String State; /*Makes the control flow simpler, just checking
strings that describe the state. All the states are contained in GameState class.*/
public Board()
{
this.addMouseListener(this);
this.addMouseMotionListener(this);
setVisible(true);
mainMenu.initLogIn(); /*This just loads the button images*/
Timer timer = new Timer(12, this); /*(millisecond delay, tells this class
to update any actionlistener (mouselistener etc)*/
timer.start();
}
public void paint(Graphics G)
{
super.paint(G);
Graphics G2d = (Graphics2D)G;
/*Main menu paint logic*/
// This paints buttons from mainMenu class on screen
G.drawImage(mainMenu.getTopic1().getspriteImage(),
mainMenu.getTopic1().getxCoord(),
mainMenu.getTopic1().getyCoord(),this);
G.drawImage(mainMenu.getTopic2().getspriteImage(),
mainMenu.getTopic2().getxCoord(),
mainMenu.getTopic2().getyCoord(), this);
G.drawImage(mainMenu.getTopic3().getspriteImage(),
mainMenu.getTopic3().getxCoord(),
mainMenu.getTopic3().getyCoord(),this);
/*Shows mouse input worked by changing the background color*/
if (State == GameState.MAINMENU_TOPIC1)
{
setBackground(Color.BLACK);
}
if (State == GameState.MAINMENU_TOPIC2)
{
setBackground(Color.BLUE);
}
if (State == GameState.MAINMENU_TOPIC3)
{
setBackground(Color.GRAY);
}
repaint(); //tells paint to repaint, which allows gui to update
}
@Override
public void mouseClicked(MouseEvent e)
{
Point point = e.getPoint();
/*This contains the logic to change State based on mouse clicks*/
if(mainMenu.getTopic1().getRectangle().contains(point))
{
State = GameState.MAINMENU_TOPIC1;
}
if(mainMenu.getTopic2().getRectangle().contains(point))
{
State = GameState.MAINMENU_TOPIC2;
}
if(mainMenu.getTopic3().getRectangle().contains(point))
{
State = GameState.MAINMENU_TOPIC3;
}
}
所以,我不确定为什么不会总是检测到鼠标点击。我知道分配给动作监听器的时间可能太短了。但是,没有太多的代码供机器循环,所以我认为这不是问题。有什么可能导致鼠标这样做的想法吗?
另外,我肯定会在以后使用JButtons实现它。我相信这有助于清理我在大项目上的代码
感谢您的评论,我希望这可以解决大部分问题。
答案 0 :(得分:1)
鼠标"点击"可能基本上是双击或三击。您可以使用evt.clickCount
来获得该功能。它将成为一个事件。
如果您希望获得所有"请按",请改用mousePressed()
。