Java Code Examples for javax.microedition.lcdui.Display#getDisplay()

/**
 * Return a reference to the singleton display manager object.
 *
 * @param token security token with the MIDP permission "allowed"
 *
 * @return display manager reference.
 */
public static DisplayEventHandler
        getDisplayEventHandler(SecurityToken token) {

    token.checkIfPermissionAllowed(Permissions.MIDP);

    if (managerImpl != null) {
        return managerImpl;
    }

    /**
     * The display manager implementation is a private class of Display
     * and is create in the class init of Display, we need to call a
     * static method of display to get the class init to run, because
     * some classes need to get the display manager to create a display
     */
    try {
        // this will yield a null pointer exception on purpose
        Display.getDisplay(null);
    } catch (NullPointerException npe) {
        // this is normal for this case, do nothing
    }

    return managerImpl;
}
 

void runBenchmark() {
  Display display = Display.getDisplay(this);
  BouncyColors bouncyColors = new BouncyColors();
  display.setCurrent(bouncyColors);

  for (int i = 0; i < 16; i++) {
    Thread thread = new Thread(new Worker(), "T" + i);
    thread.setPriority(Thread.MIN_PRIORITY);
    thread.start();
  }

  Thread current = Thread.currentThread();
  current.setPriority(Thread.MAX_PRIORITY);

  while (true) {
    bouncyColors.repaint();
    try {
      Thread.sleep(16);
    } catch (InterruptedException e) {}
  }
}
 

public void startApp() {
    Display display = Display.getDisplay(this);
    BouncyColors bouncyColors = new BouncyColors();
    display.setCurrent(bouncyColors);

    for (int i = 0; i < 16; i++) {
        Thread thread = new Thread(new Worker(), "T" + i);
        thread.setPriority(Thread.MIN_PRIORITY);
        thread.start();
      }

    Thread current = Thread.currentThread();
    current.setPriority(Thread.MAX_PRIORITY);

    while (true) {
        bouncyColors.repaint();

        try {
            Thread.sleep(16);
        } catch (InterruptedException e) {}
    }
}
 

protected void startApp() throws MIDletStateChangeException
{
	DeviceControl.setLights( 0, 100 );
	Display disp = Display.getDisplay( this );
	try
	{
		iCanvas = new PanoramaCanvas( Image.createImage(PHOTO_NAME), this );
		disp.setCurrent( iCanvas );
		iConnection = openAccelerationSensor();
		if (iConnection != null)
			iConnection.setDataListener( this, BUFFER_SIZE );
	}
	catch (IOException e)
	{
		e.printStackTrace();
	}
}
 

public BlogWriter() {
    this.display = Display.getDisplay(this);
    // Crate login screen
    this.loginScreen = new LoginScreen(this.display);
    this.loginScreen.setParent(this);
    // Activate login screen
    this.display.setCurrent(this.loginScreen);
}
 

public void startApp() {
    if (display != null) {
        return;
    }

    self = this;
    display = Display.getDisplay(this);

    showLinksView(session.getCategory());
}
 

protected void startApp() throws MIDletStateChangeException {
	this.recordButton = new StringItem(null, "Start", Item.BUTTON);
	Command toggleRecordingCMD = new Command("Click", Command.ITEM, 1);
	this.recordButton.addCommand(toggleRecordingCMD);
	this.recordButton.setDefaultCommand(toggleRecordingCMD);
	this.recordButton.setItemCommandListener(this);

	this.form = new Form(null, new Item[] {
			new StringItem(null, "Audio Recorder"), this.recordButton });

	this.display = Display.getDisplay(this);
	this.display.setCurrent(this.form);
}
 

protected MIDlet() {
	Display.getDisplay(this); // init display for this instance
}
 

/** Separate initialization function for convenience. */
public void initialize() {
	display = Display.getDisplay(mainApp);
	myCanvas = new GAFAView(this, display);
	display.setCurrent(myCanvas);
}
 

/** Creates the midlet and initiates the display. */
public GAFAMidlet() {
	display = Display.getDisplay(this);
}
 

/**
 * Protected constructor for subclasses.
 * The application management software is responsible
 * for creating MIDlets and creation of MIDlets is restricted.
 * MIDlets should not attempt to create other MIDlets.
 *
 * @exception java.lang.SecurityException unless the application
 * management software is creating the MIDlet.
 */
protected MIDlet() {
    peer = MIDletStateHandler.newMIDletPeer(classSecurityToken, this);

    // Ensure that a display for this midlet is created
    Display d = Display.getDisplay(this);
}
 

/**
 * Set a view to the current display.
 * 
 * @param disp
 *            a view to set.
 */
public void setCurrent(Displayable disp) {
	if (display == null)
		display = Display.getDisplay(mainApp);
	display.setCurrent(disp);
}