我正在努力制作像宝石迷阵或candycrush这样的游戏作业。它快要结束了。但我有一点问题。现在，当我点击时，会弹出具有相同图标的按钮，上面的图片将会出现，而不是爆炸。但它太快了。我怎么能减慢这个事件？或者我可以添加效果吗？
public class ButtonActionListener implements ActionListener {
public JButton previousButton = null;
public int numP, numC;
public JButton[] buttons=butondeneme.getButton();
@Override
public void actionPerformed(ActionEvent e){
// TODO Auto-generated method stub
JButton currentButton = (JButton)e.getSource();
if (previousButton == null) {
previousButton = currentButton;
return;
}
int numP=Integer.parseInt(((JButton)previousButton).getActionCommand());
int numC=Integer.parseInt(((JButton)currentButton).getActionCommand());
//change picture of icons that clicked
if (numP==(numC+1) || numP==(numC-1) || numP==(numC+8) || numP==(numC-8) ){
Icon previousIcon = previousButton.getIcon();
Icon currentIcon = currentButton.getIcon();
currentButton.setIcon(previousIcon);
previousButton.setIcon(currentIcon);
previousButton = null;
}
else
previousButton=null;
Random r = new Random();
int a = r.nextInt(64);
int b = r.nextInt(64);
int c = r.nextInt(64);
//buttons that have same picture are explode.
for(int i=0; i<63; i++){
if(buttons[i].getIcon().toString()==buttons[i+1].getIcon().toString() &&
buttons[i+1].getIcon().toString()== buttons[i+2].getIcon().toString() ){
//System.out.println("slm");
if(i > 7){
buttons[i].setIcon(buttons[i-8].getIcon());
buttons[i+1].setIcon(buttons[i-7].getIcon());
buttons[i+2].setIcon(buttons[i-6].getIcon());
for(int j = i; j > 0; j=j-8){
if(j > 7){
buttons[j].setIcon(buttons[j-8].getIcon());
buttons[j+1].setIcon(buttons[j-7].getIcon());
buttons[j+2].setIcon(buttons[j-6].getIcon());
}
else{
buttons[j].setIcon(buttons[a].getIcon());
buttons[j+1].setIcon(buttons[b].getIcon());
buttons[j+2].setIcon(buttons[c].getIcon());
}
}
}
else{
buttons[i].setIcon(buttons[a].getIcon());
buttons[i+1].setIcon(buttons[b].getIcon());
buttons[i+2].setIcon(buttons[c].getIcon());
}
}
}
}
}
在本课程中，我创建了框架，按钮和随机图标。
public class butondeneme extends JFrame{
private JPanel grid;
public String comand;
public static JButton[] buttons;
public String imgName;
public butondeneme(){
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 640, 640);
grid=new JPanel();
grid.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
grid.setLayout(new GridLayout(8,8,5,5));
buttons = new JButton[64];
//Creating random image for buttons
ActionListener buttonActionListener = new ButtonActionListener();
for (int i = 0; i<buttons.length; i++) {
Random r = new Random();
int a = r.nextInt(9)+1;
switch(a){
case 1 : buttons[i]=new JButton(new ImageIcon("img//Cakal.png"));
break;
case 2 : buttons[i]=new JButton(new ImageIcon("img//BugsBunny.png"));
break;
case 3 : buttons[i]=new JButton(new ImageIcon("img//Pig.png"));
break;
case 4 : buttons[i]=new JButton(new ImageIcon("img//Taz.png"));
break;
case 5 : buttons[i]=new JButton(new ImageIcon("img//Sam.png"));
break;
case 6 : buttons[i]=new JButton(new ImageIcon("img//DuffyDuck.png"));
break;
case 7 : buttons[i]=new JButton(new ImageIcon("img//Tweety.png"));
break;
case 8 : buttons[i]=new JButton(new ImageIcon("img//Slyvester.png"));
break;
case 9 : buttons[i]=new JButton(new ImageIcon("img//RoadRunner.png"));
break;
}
//Adding number to find easily
comand=Integer.toString(i);
//Get ImageIcon name
imgName=((ImageIcon)buttons[i].getIcon()).toString();
buttons[i].addActionListener(buttonActionListener);
buttons[i].setActionCommand(comand);
grid.add(buttons[i]);
}
add(grid);
}
static JButton[] getButton(){
return buttons;
}
public static void main(String[] args){
butondeneme erdem=new butondeneme();
erdem.setVisible(true);
}
}
答案 0 :(得分：0)
如果要为此类“动画”添加延迟，则必须使用Thread.sleep(ms)。
但是此代码包含在actionPerformed方法中，因此您无法直接使用Thread.sleep(ms)，因为这会阻止Event-Dispatch-Thread（EDT） GUI会变得反应迟钝。
所以你必须用自己的线程执行这个“动画”。
但是您不能在不同的主题上调用Button#setIcon(...)而不是EDT。
所以实际的解决方案在这里有点棘手 - 你必须“乒乓”两个线程之间的责任（或者，你可以使用javax.swing.Timer，但我认为这可能需要更多的重组你的原始代码......虽然我并不完全明白你在那里做了什么（也就是说，你为什么会改变那些图标）。）
然而，这种方法的一般结构大致如下：
@Override
public void actionPerformed(ActionEvent e){
...
//buttons that have same picture are explode.
startAnimation();
}
private void startAnimation()
{
Thread t = new Thread(new Runnable()
{
@Override
public void run()
{
runAnimation();
}
});
t.start();
}
private int a;
private int b;
private int c;
private void runAnimation()
{
Random r = new Random();
a = r.nextInt(64);
b = r.nextInt(64);
c = r.nextInt(64);
for(int i=0; i<63; i++)
{
final int iFinal = i;
SwingUtilities.invokeLater(new Runnable()
{
@Override
public void run()
{
doAnimationStep(iFinal);
}
});
try
{
Thread.sleep(100);
}
catch (InterruptedException e)
{
Thread.currentThread().interrupt();
return;
}
}
}
private void doAnimationStep(int i)
{
String s0 = buttons[i].getIcon().toString();
String s1 = buttons[i+1].getIcon().toString();
String s2 = buttons[i+2].getIcon().toString();
if(s0.equals(s1) && s1.equals(s2))
{
//System.out.println("slm");
if(i > 7){
buttons[i].setIcon(buttons[i-8].getIcon());
buttons[i+1].setIcon(buttons[i-7].getIcon());
buttons[i+2].setIcon(buttons[i-6].getIcon());
for(int j = i; j > 0; j=j-8){
if(j > 7){
buttons[j].setIcon(buttons[j-8].getIcon());
buttons[j+1].setIcon(buttons[j-7].getIcon());
buttons[j+2].setIcon(buttons[j-6].getIcon());
}
else{
buttons[j].setIcon(buttons[a].getIcon());
buttons[j+1].setIcon(buttons[b].getIcon());
buttons[j+2].setIcon(buttons[c].getIcon());
}
}
}
else{
buttons[i].setIcon(buttons[a].getIcon());
buttons[i+1].setIcon(buttons[b].getIcon());
buttons[i+2].setIcon(buttons[c].getIcon());
}
}
}
顺便说一句：你不应该将String个对象与if (string0==string1) ...进行比较，而应始终与if (string0.equals(string1)) ...进行比较