import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.TextBox;
import javax.microedition.lcdui.TextField;
import javax.microedition.lcdui.Ticker;
import javax.microedition.midlet.MIDlet;
public class TextBoxMIDlet extends MIDlet implements CommandListener {
private static final int MAX_TEXT_SIZE = 64;
protected TextBox textBox;
protected Display display;
private static final Command EXIT_COMMAND = new Command("Exit", Command.EXIT,0);
private static final Command OK_COMMAND = new Command("OK", Command.OK, 0);
private static final Command CLEAR_COMMAND = new Command("Clear",Command.SCREEN, 1);
private static final Command REVERSE_COMMAND = new Command("Reverse",Command.SCREEN, 1);
protected void startApp() {
String str = null;
try {
InputStream is = getClass().getResourceAsStream("resources/text.txt");
InputStreamReader r = new InputStreamReader(is);
char[] buffer = new char[32];
StringBuffer sb = new StringBuffer();
int count;
while ((count = r.read(buffer, 0, buffer.length)) > -1) {
sb.append(buffer, 0, count);
}
str = sb.toString();
} catch (IOException ex) {
str = "Failed to load text";
}
textBox = new TextBox("TextBox Example", str, MAX_TEXT_SIZE, TextField.ANY);
Ticker ticker = new Ticker("This is a ticker...");
textBox.setTicker(ticker);
textBox.addCommand(OK_COMMAND);
textBox.addCommand(EXIT_COMMAND);
textBox.addCommand(CLEAR_COMMAND);
textBox.addCommand(REVERSE_COMMAND);
textBox.setCommandListener(this);
display = Display.getDisplay(this);
display.setCurrent(textBox);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
public void commandAction(Command c, Displayable d) {
if (c == EXIT_COMMAND) {
destroyApp(true);
notifyDestroyed();
} else if (c == OK_COMMAND) {
System.out.println("OK pressed");
} else if (c == CLEAR_COMMAND) {
textBox.setString(null);
} else if (c == REVERSE_COMMAND) {
String str = textBox.getString();
if (str != null) {
StringBuffer sb = new StringBuffer(str);
textBox.setString(sb.reverse().toString());
}
}
}
}