в 17:43, 31 мая 2010

2010-05-31T17:43:49Z

Admin: 1 версия

2010-05-31T14:49:09Z

1 версия

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== Image: createImage(String name) throws IOException ==



<source lang="java">

import java.io.IOException;
import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.AlertType;
import javax.microedition.lcdui.rumand;
import javax.microedition.lcdui.rumandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.List;
import javax.microedition.midlet.MIDlet;
public class J2METravelList extends MIDlet implements CommandListener {
private List mList;
private Command mExitCommand, mNextCommand;
public J2METravelList() {
String[] stringElements = { "A", "C", "H" };
Image[] imageElements = { loadImage("/a.png"), loadImage("/c.png"),
loadImage("/h.png") };
mList = new List("Reservation type", List.IMPLICIT, stringElements, imageElements);
mNextCommand = new Command("Next", Command.SCREEN, 0);
mExitCommand = new Command("Exit", Command.EXIT, 0);
mList.addCommand(mNextCommand);
mList.addCommand(mExitCommand);
mList.setCommandListener(this);
}
public void startApp() {
Display.getDisplay(this).setCurrent(mList);
}
public void commandAction(Command c, Displayable s) {
if (c == mNextCommand || c == List.SELECT_COMMAND) {
int index = mList.getSelectedIndex();
Alert alert = new Alert("Your selection", "You chose " + mList.getString(index) + ".", null,
AlertType.INFO);
Display.getDisplay(this).setCurrent(alert, mList);
} else if (c == mExitCommand)
notifyDestroyed();
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
private Image loadImage(String name) {
Image image = null;
try {
image = Image.createImage(name);
} catch (IOException ioe) {
System.out.println(ioe);
}
return image;
}
}

</source>



== Image: getGraphics() ==



<source lang="java">

import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.rumand;
import javax.microedition.lcdui.rumandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.midlet.MIDlet;
public class J2MEMutableImageExample extends MIDlet {
private Display display;
private MyCanvas canvas;
public J2MEMutableImageExample() {
display = Display.getDisplay(this);
canvas = new MyCanvas(this);
}
protected void startApp() {
display.setCurrent(canvas);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
public void exitMIDlet() {
destroyApp(true);
notifyDestroyed();
}
class MyCanvas extends Canvas implements CommandListener {
private Command exit;
private J2MEMutableImageExample mutableImageExample;
private Image image = null;
public MyCanvas(J2MEMutableImageExample mutableImageExample) {
this.mutableImageExample = mutableImageExample;
exit = new Command("Exit", Command.EXIT, 1);
addCommand(exit);
setCommandListener(this);
try {
image = Image.createImage(70, 70);
Graphics graphics = image.getGraphics();
graphics.setColor(255, 0, 0);
graphics.fillArc(10, 10, 60, 50, 180, 180);
} catch (Exception error) {
Alert alert = new Alert("Failure", "Creating Image", null, null);
alert.setTimeout(Alert.FOREVER);
display.setCurrent(alert);
}
}
protected void paint(Graphics graphics) {
if (image != null) {
graphics.setColor(255, 255, 255);
graphics.fillRect(0, 0, getWidth(), getHeight());
graphics.drawImage(image, 30, 30, Graphics.VCENTER | Graphics.HCENTER);
}
}
public void commandAction(Command command, Displayable display) {
if (command == exit) {
mutableImageExample.exitMIDlet();
}
}
}
}

</source>

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в 17:43, 31 мая 2010

Admin: 1 версия