Java by API/javax.microedition.lcdui/List
Версия от 17:43, 31 мая 2010; (обсуждение)
List: append(String stringPart, Image imagePart)
import javax.microedition.lcdui.Choice;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.List;
import javax.microedition.midlet.MIDlet;
public class PaymentMIDlet extends MIDlet {
private Display display;
List options = new List("Method of Payment", Choice.EXCLUSIVE);
public void startApp() {
display = Display.getDisplay(this);
options.append("Visa", null);
options.append("MasterCard", null);
options.append("Amex", null);
display.setCurrent(options);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
}
List.SELECT_COMMAND
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;
}
}
new List(String title, int listType, String[] stringElements, Image[] imageElements)
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;
}
}