Deprimer at 02:49, 6 February 2007

2007-02-06T02:49:57Z

← Older revision		Revision as of 19:49, 5 February 2007
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	=== Overview ===		=== Overview ===

	This MIDlet consists of two classes - CanvasDemo and MyCanvas.		This MIDlet consists of two classes - CanvasDemo and MyCanvas. It's a simple demonstration of creating basic animation on a Canvas.

	'''CanvasDemo'''		'''CanvasDemo'''

Deprimer at 02:46, 6 February 2007

2007-02-06T02:46:20Z

New page

=== Overview ===

This MIDlet consists of two classes - CanvasDemo and MyCanvas.

'''CanvasDemo'''
<pre>/*
* CanvasDemo
* by Michael Sharon
* copyleft 2006
*
* Canvas using a Timer
*/

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class CanvasDemo extends MIDlet {

private boolean boolMotion=true;
private int iX=10,iY=60;

Display mDisplay;
Thread th;

public void destroyApp(boolean unconditional){}

public void pauseApp() {}

public void startApp() {
mDisplay = Display.getDisplay(this);
final MyCanvas can = new MyCanvas();
mDisplay.setCurrent(can);
}

}</pre>

'''MyCanvas'''
<pre>import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class MyCanvas extends Canvas implements Runnable {
int count;
int h, w;

public MyCanvas() {
h = getHeight();
w = getWidth();
Thread th=new Thread(this);
th.start();
}

//drawing on canvas
public void paint(Graphics g) {
g.setColor(0,0,0);
g.fillRect(0,0,w,h);
g.setColor(122,122,122);
g.fillRect(0,count,40,40);
g.drawString("counter="+count,60,20,g.TOP|g.LEFT);
}

//handling keyEvents
protected void keyPressed(int keyCode) {
repaint();
}

public void run() {
while(true) {
count++;
repaint();
count%=180;
}
}
}</pre>

CanvasDemo - Revision history

Deprimer at 02:49, 6 February 2007

Deprimer at 02:46, 6 February 2007