Admin: 1 версия

2010-06-01T06:38:09Z

1 версия

в 18:01, 31 мая 2010

2010-05-31T18:01:44Z

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== Attributes MIDlet ==



<source lang="java">

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.Form;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.StringItem;
import javax.microedition.midlet.MIDlet;
public class AttributesMIDlet extends MIDlet implements CommandListener {
private Display display;
protected boolean started;
private Command exitCommand;
protected void startApp() {
if (!started) {
display = Display.getDisplay(this);
Canvas canvas = new DummyCanvas();
Form form = new Form("Attributes");
exitCommand = new Command("Exit", Command.EXIT, 0);
form.addCommand(exitCommand);
boolean isColor = display.isColor();
form.append(new StringItem(isColor ? "Colors: " : "Grays: ", String.valueOf(display
.numColors())));
form.append(new StringItem("Width: ", String.valueOf(canvas.getWidth())));
form.append(new StringItem("Height: ", String.valueOf(canvas.getHeight())));
form.append(new StringItem("Pointer? ", String.valueOf(canvas.hasPointerEvents())));
form.append(new StringItem("Motion? ", String.valueOf(canvas.hasPointerMotionEvents())));
form.append(new StringItem("Repeat? ", String.valueOf(canvas.hasRepeatEvents())));
form.append(new StringItem("Buffered? ", String.valueOf(canvas.isDoubleBuffered())));
form.setCommandListener(this);
display.setCurrent(form);
started = true;
}
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
public void commandAction(Command c, Displayable d) {
if (c == exitCommand) {
notifyDestroyed();
}
}
}
class DummyCanvas extends Canvas {
protected void paint(Graphics g) {
}
}

</source>



== Check Color ==



<source lang="java">

// jad file
/*
MIDlet-Name: ColorCheck
MIDlet-Version: 1.0
MIDlet-Vendor: MyCompany
MIDlet-Jar-URL: ColorCheck.jar
MIDlet-1: ColorCheck, ColorCheck.png, ColorCheck
MicroEdition-Configuration: CLDC-1.0
MicroEdition-Profile: MIDP-1.0
MIDlet-JAR-SIZE: 100
*/
import javax.microedition.lcdui.rumand;
import javax.microedition.lcdui.rumandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.TextBox;
import javax.microedition.midlet.MIDlet;
public class CheckColor extends MIDlet implements CommandListener {
private Display display;
private TextBox textbox = new TextBox("Check Colors", "", 17, 0);
private Command exit = new Command("Exit", Command.SCREEN, 1);
public CheckColor() {
display = Display.getDisplay(this);
String message = null;
if (display.isColor()) {
message = "Color display.";
} else {
message = "No color display";
}
textbox.setString(message);
textbox.addCommand(exit);
textbox.setCommandListener(this);
}
public void startApp() {
display.setCurrent(textbox);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command command, Displayable displayable) {
if (command == exit) {
destroyApp(true);
notifyDestroyed();
}
}
}

</source>



== Show Properties ==



<source lang="java">

/*--------------------------------------------------
* ShowProperties.java
*
* Example from the book: Core J2ME Technology
* Copyright John W. Muchow http://www.CoreJ2ME.ru
* You may use/modify for any non-commercial purpose
*-------------------------------------------------*/
import javax.microedition.midlet.*;
public class ShowProperties extends MIDlet
{
public void startApp() throws MIDletStateChangeException
{
System.out.println("Vendor: " + getAppProperty("MIDlet-Vendor"));
System.out.println("Description: " + getAppProperty("MIDlet-Description"));
System.out.println("JadFile Version: " + getAppProperty("JadFile-Version"));
System.out.println("MIDlet-Data-Size: " + getAppProperty("MIDlet-Data-Size"));

Runtime rtime = Runtime.getRuntime();
System.out.println("Total memory: " + rtime.totalMemory());
System.out.println("Free memory: " + rtime.freeMemory());
}
public void pauseApp()
{
}
public void destroyApp(boolean unconditional)
{
}
}

</source>

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Admin: 1 версия

в 18:01, 31 мая 2010