import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
import javax.microedition.lcdui.*;
public class Midlet extends MIDlet {
Display display;
public Midlet() {
display = Display.getDisplay(this);
display.setCurrent(new DrawCanvas());
}
protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
}
protected void pauseApp() {
}
protected void startApp() throws MIDletStateChangeException {
}
}
/**
* 进行低阶绘图的Canvas类
*
*
@author aflylove
*
@version 1.0
*/
class DrawCanvas extends Canvas implements Runnable {
/** 构造函数 */
private String str = new String("PRESS 5");
private int[] ak = { 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 3, 2, 1, 0, 0, 0, 0, 0,
0, 0 };
boolean kaishi = true;
private int k = 6;
public DrawCanvas() {
new Thread(this).start();
}
protected void paint(Graphics g) {
g.setColor(0x00ffffff);
g.fillRect(0, 0, getWidth(), getHeight());
g.setColor(0x00000000);
for (int i = 0; i < str.length(); i++) {
g.drawString(str.substring(i, i + 1), 20 + i * 7, 10 - ak[k - i], 0);
g.drawString(str.substring(i, i + 1), 21 + i * 7, 11 - ak[k - i], 0);// 加重字体7是字体宽度
}
}
public void run() {
while (kaishi) {
try {
repaint(); // 再描绘
Thread.sleep(70); // 等待一定时间
k++;
if (k > (ak.length - 1))
k = 6;
} catch (InterruptedException e) {
}
}
}
}