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2010-06-01T05:00:21Z

1 версия

в 17:44, 31 мая 2010

2010-05-31T17:44:27Z

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== Add StringItem to a form ==



<source lang="java">
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.StringItem;
import javax.microedition.midlet.MIDlet;
public class FormStringItemMIDlet extends MIDlet {
protected Display display;
protected void startApp() {
display = Display.getDisplay(this);
Form form = new Form("Item Layout");
form.append("line");
form.append(new StringItem("State ", "OK"));
display.setCurrent(form);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
}</source>



== Create Form with a list of StringItems ==



<source lang="java">
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.StringItem;
import javax.microedition.midlet.MIDlet;
public class J2MECreatingFormWithItems extends MIDlet implements CommandListener {
private Display display;
private Form form;
private Command exit;
public J2MECreatingFormWithItems() {
display = Display.getDisplay(this);
exit = new Command("Exit", Command.SCREEN, 1);
StringItem messages[] = new StringItem[2];
messages[0] = new StringItem("Welcome, ", "glad you could come.");
messages[1] = new StringItem("Hello, ", "Mary.");
form = new Form("Display Form with Items", messages);
form.addCommand(exit);
form.setCommandListener(this);
}
public void startApp() {
display.setCurrent(form);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command command, Displayable displayable) {
if (command == exit) {
destroyApp(true);
notifyDestroyed();
}
}
}</source>



== Get Label and text from StringItem ==



<source lang="java">
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.Form;
import javax.microedition.lcdui.StringItem;
import javax.microedition.midlet.MIDlet;
public class StringItemMIDlet extends MIDlet implements CommandListener {
private Command exitCommand = new Command("Exit", Command.EXIT, 1);
private Command setLabelCommand = new Command("Label", Command.SCREEN, 1);
private Command setTextCommand = new Command("Text", Command.SCREEN, 1);
private Command getLabelTextCommand = new Command("Get", Command.SCREEN, 1);
private StringItem stringItem1 = new StringItem("Label1", "Content1");
private StringItem stringItem2 = new StringItem(null, "Content2");
private Display display = Display.getDisplay(this);
public StringItemMIDlet() {
}
public void startApp() {
Form aForm = new Form("StringItem");
aForm.append(stringItem1);
aForm.append(stringItem2);
aForm.addCommand(exitCommand);
aForm.addCommand(setLabelCommand);
aForm.addCommand(setTextCommand);
aForm.addCommand(getLabelTextCommand);
aForm.setCommandListener(this);
display.setCurrent(aForm);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command c, Displayable s) {
if (c == exitCommand) {
destroyApp(false);
notifyDestroyed();
}
if (c == setLabelCommand)
stringItem1.setLabel("new label");
if (c == setTextCommand)
stringItem2.setText("new text");
if (c == getLabelTextCommand) {
Alert alert = new Alert("Info", stringItem1.getLabel() + ":" + stringItem1.getText(), null,
AlertType.INFO);
alert.setTimeout(5000);
display.setCurrent(alert);
}
}
}</source>



== Set new text value to StringItem ==



<source lang="java">
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.StringItem;
import javax.microedition.midlet.MIDlet;
public class J2MEStringItemExample extends MIDlet implements CommandListener {
private Display display;
private Form form = new Form("Quiz");
private StringItem question = new StringItem("Question: ", "A ?");
private Command giveup = new Command("Give Up", Command.SCREEN, 1);
private Command exit = new Command("Exit", Command.EXIT, 1);
public J2MEStringItemExample() {
display = Display.getDisplay(this);
form.addCommand(exit);
form.addCommand(giveup);
form.append(question);
form.setCommandListener(this);
}
public void startApp() {
display.setCurrent(form);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command command, Displayable displayable) {
if (command == giveup) {
question.setLabel("Answer: ");
question.setText("Survivors are not buried.");
form.removeCommand(giveup);
} else if (command == exit) {
destroyApp(false);
notifyDestroyed();
}
}
}</source>



== StringItem with line break ==



<source lang="java">
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.StringItem;
import javax.microedition.midlet.MIDlet;
public class FormStringItemLineBreakMIDlet extends MIDlet {
protected Display display;
protected void startApp() {
display = Display.getDisplay(this);
Form form = new Form("Item Layout");
form.append("line");
form.append(new StringItem(null, "No\n label\n"));
display.setCurrent(form);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
}</source>

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Admin: 1 версия

в 17:44, 31 мая 2010