gamecanvas.java

来自「自己做的J2ME手机游戏开发进入届面」· Java 代码 · 共 63 行

import java.io.IOException;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.GameCanvas;

public class Gamecanvas extends GameCanvas implements Runnable {
	GameMain gameMain;

	private boolean isShow;// 指示是否显示

	protected Gamecanvas() {
		super(true);
		isShow = true;
		Thread t = new Thread(this);
		t.start();
	
	}

	private void keyPressed() {
		int keyCode = this.getKeyStates();
       if (keyCode!=0){
    	   isShow=false;
       }
	}

	private void drawScreen(Graphics g) {
		// 清屏
		g.setColor(255, 255, 255);
		g.fillRect(0, 0, this.getWidth(), this.getHeight());
		g.setColor(0, 0, 0);
		Image img = null;
		try {
			img = Image.createImage("/Gamelogo.png");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		g.drawImage(img, 0, 0, Graphics.TOP | Graphics.LEFT);

		this.flushGraphics();

		this.flushGraphics();

	}

	public void run() {
		Graphics g = this.getGraphics();
		int i=0;
		while (isShow && i<=30) {
			keyPressed();
			drawScreen(g);
			try {
				Thread.sleep(40);
				
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			i=i+1;
		}
		gameMain.display.setCurrent(new MyGameCanvas());
	}
}