i'm using lwuit videocomponent to play video.
import com.sun.lwuit.Button;
import com.sun.lwuit.Display;
import com.sun.lwuit.Font;
import com.sun.lwuit.Form;
import com.sun.lwuit.Image;
import com.sun.lwuit.VideoComponent;
import com.sun.lwuit.animations.CommonTransitions;
import com.sun.lwuit.events.ActionEvent;
import com.sun.lwuit.events.ActionListener;
import com.sun.lwuit.plaf.Border;
import com.sun.lwuit.table.TableLayout;
import javax.microedition.midlet.*;
public class vtestMidlet extends MIDlet implements ActionListener{
private Image back;
public void startApp() {
Display.init(this);
loginform();
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
void loginform()
{
Form login=new Form();
Button save;
save=new Button("Save");
login.addComponent(save);
login.getSelectedStyle().setBgColor(0xff0000);
login.getUnselectedStyle().setBgColor(0xff0000);
save.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
videoform();
}
});
login.setTransitionOutAnimator(CommonTransitions.createSlide(CommonTransitions.SLIDE_HORIZONTAL, false, 200));
login.show();
}
void videoform()
{
final Form videoplayer;
final VideoComponent vc;
Button home;
try{
videoplayer=new Form();
TableLayout layout2 = new TableLayout(10,1);
videoplayer.setLayout(layout2);
vc = VideoComponent.createVideoPeer("http://localhost/md.3gp");
home=new Button("Home");
vc.start();
videoplayer.getUnselectedStyle().setBgImage(back);
videoplayer.getSelectedStyle().setBgImage(back);
home.getUnselectedStyle().setBgColor(0x4673aa);
home.getSelectedStyle().setBgColor(0x4673aa);
home.getUnselectedStyle().setFont(Font.createSystemFont(Font.FACE_PROPORTIONAL,Font.STYLE_PLAIN, Font.SIZE_MEDIUM));
home.getSelectedStyle().setFont(Font.createSystemFont(Font.FACE_PROPORTIONAL,Font.STYLE_BOLD, Font.SIZE_MEDIUM));
home.getUnselectedStyle().setFgColor(0xffffff);
home.getSelectedStyle().setFgColor(0xffffff);
home.getSelectedStyle().setBorder(Border.createEmpty());
home.getUnselectedStyle().setBorder(Border.createEmpty());
home.getSelectedStyle().setPadding(3, 3, 6, 6);
home.getUnselectedStyle().setPadding(3, 3, 6, 6);
videoplayer.addComponent(vc);
videoplayer.addComponent(home);
videoplayer.setTransitionOutAnimator(CommonTransitions.createSlide(CommonTransitions.SLIDE_HORIZONTAL, false, 200));
home.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
vc.stop();
loginform();
}
});
videoplayer.show();
}
catch(Exception e)
{
e.printStackTrace();
}
}
public void actionPerformed(ActionEvent arg0) {
}
}
My problem is when switch back to another Form (i.e loginform) from Form that displays video (i.e videoform ) , the video plays on top of the loginform. find the screenshot below.
This is because your video component is not stopping correctly.
Try adding:
VideoComponent vc;
Player player;
vc = VideoComponent.createVideoPeer("http://localhost/md.3gp");
player = (Player) vc.getNativePeer();
player.realize();
vc.start();
and in action listener:
player.stop();
vc.stop();
player.close();
loginform();
Related
I'm building a UI for a Simulator running in background. Since this Simulator may not hold for a long time, it of course has to be in a separate thread from the JavaFx Thread. I want to start, pause, resume and stop/terminate the Simulator when the corresponding button is clicked.
The service class that advances the simulator looks like this:
import javafx.concurrent.Service;
import javafx.concurrent.Task;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
public class SimulatorService extends Service<Void> {
private Simulator simulator;
private long cycleLengthMS = 1000;
private final AtomicBoolean simulatorStopped = new AtomicBoolean(false);
public SimulatorService(Simulator simulator){
this.simulator = simulator;
}
#Override
protected Task<Void> createTask() {
return new Task<>() {
#Override
protected Void call() {
System.out.println("Requested start of Simulator");
int state;
do {
// advance
state = simulator.nextStep();
try {
TimeUnit.MILLISECONDS.sleep(cycleLengthMS);
if(simulatorStopped.get()){
super.cancel();
}
} catch (InterruptedException e) {
return null;
}
}
while (state == 0 && !simulatorStopped.get());
return null;
}
};
}
#Override
public void start(){
if(getState().equals(State.READY)){
simulatorStopped.set(false);
super.start();
}
else if(getState().equals(State.CANCELLED)){
simulatorStopped.set(false);
super.restart();
}
}
#Override
public boolean cancel(){
if(simulatorStopped.get()){
simulatorStopped.set(true);
return false;
} else{
simulatorStopped.set(true);
return true; //if value changed
}
}
}
The Simulator starts the Service if a button on the GUI is pressed:
import javafx.application.Platform;
import java.util.concurrent.atomic.AtomicInteger;
public class Simulator {
Model model;
private final SimulatorService simulatorService;
public Simulator(Model model){
this.model = model;
simulatorService = new SimulatorService(this);
}
public int nextStep(){
final AtomicInteger res = new AtomicInteger(0);
Platform.runLater(new Thread(()-> {
res.set(model.nextStep());
}));
return res.get();
}
public boolean stopSimulationService() throws IllegalStateException{
return simulatorService.cancel();
}
public void startSimulationService() throws IllegalStateException{
simulatorService.start();
}
}
Parts of the window are redrawn if a observed value in the model changes:
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.SimpleIntegerProperty;
public class Model {
private final IntegerProperty observedValue = new SimpleIntegerProperty(0);
public int nextStep() {
observedValue.set(observedValue.get() + 1);
return observedValue.get() > 500000 ? 1 : 0;
}
public int getObservedValue() {
return observedValue.get();
}
public IntegerProperty observedValueProperty() {
return observedValue;
}
public void setObservedValue(int observedValue) {
this.observedValue.set(observedValue);
}
}
The redraw happens in another class:
import javafx.beans.value.ChangeListener;
public class ViewController {
private View view;
private Simulator simulator;
private Model model;
public ViewController(Simulator simulator) {
this.simulator = simulator;
this.view = new View();
setModel(simulator.model);
view.nextStep.setOnMouseClicked(click -> {
simulator.nextStep();
});
view.startSim.setOnMouseClicked(click -> {
simulator.startSimulationService();
});
view.stopSim.setOnMouseClicked(click ->{
simulator.stopSimulationService();
});
}
public View getView() {
return view;
}
private final ChangeListener<Number> observedValueListener = (observableValue, oldInt, newInt) -> {
view.updateView(newInt.intValue());
};
public void setModel(Model m) {
this.model = m;
m.observedValueProperty().addListener(observedValueListener);
}
}
The corresponding view:
import javafx.geometry.Pos;
import javafx.scene.control.Button;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.GridPane;
import javafx.scene.text.Text;
public class View extends BorderPane {
Button nextStep = new Button("next step");
Button startSim = new Button("start");
Button stopSim = new Button("stop");
GridPane buttons = new GridPane();
Text num = new Text();
public View(){
buttons.add(nextStep,0,0);
buttons.add(startSim,0,1);
buttons.add(stopSim,0,2);
buttons.setAlignment(Pos.BOTTOM_LEFT);
setCenter(buttons);
setTop(num);
}
public void updateView(int num){
this.num.setText("" + num);
}
}
Main:
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class Main extends Application {
public static void main(String[] args) {
launch(args);
}
#Override
public void start(Stage stage) throws Exception {
ViewController c = new ViewController(new Simulator(new Model()));
Scene scene = new Scene(c.getView(),200,200);
stage.setScene(scene);
stage.show();
}
}
First, I'm sorry for my bad English. I'm a newbie J2ME
I wrote the below code after i watched some tutorial but it not working. I don't know what happen with it.
AnimationCanvas.java
package example;
import java.io.IOException;
import javax.microedition.lcdui.*;
import javax.microedition.lcdui.game.GameCanvas;
import javax.microedition.lcdui.game.LayerManager;
import javax.microedition.lcdui.game.Sprite;
public class AnimationCanvas extends GameCanvas implements Runnable {
private Sprite ca;
private int frameWidth = 14;
private int frameHeight = 14;
private boolean playing = true;
private int a=1;
public AnimationCanvas(){
super(true);
try {
ca = new Sprite(Image.createImage("ca.png"), frameWidth, frameHeight);
} catch (IOException ex) {
ex.printStackTrace();
}
}
public void start() {
Thread runner = new Thread(this);
runner.start();
}
public void run(){
while (playing){
drawDisplay(getGraphics());
try{
Thread.sleep(10);
} catch(Exception e){}
}
}
public void drawDisplay(Graphics g){
g.setColor(0x000000);
g.fillRect(0,0,getWidth(),getHeight());
ca.setFrame(1);
ca.paint(g);
flushGraphics();
}
public void stop(){
playing=false;
}
}
and AnimationMidlet.java
package example;
import java.io.IOException;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class AnimationMidlet extends MIDlet {
private Display display;
private AnimationCanvas canvas;
public AnimationMidlet() throws IOException {
display = Display.getDisplay(this);
canvas = new AnimationCanvas();
}
private void initialize() {
// write pre-initialize user code here
// write post-initialize user code here
}
public void startMIDlet() {
// write pre-action user code here
// write post-action user code here
}
public void resumeMIDlet() {
// write pre-action user code here
// write post-action user code here
}
public void switchDisplayable(Alert alert, Displayable nextDisplayable) {
// write pre-switch user code here
Display display = getDisplay();
if (alert == null) {
display.setCurrent(nextDisplayable);
} else {
display.setCurrent(alert, nextDisplayable);
}
// write post-switch user code here
}
public Display getDisplay() {
return Display.getDisplay(this);
}
public void startApp() {
if(canvas!=null){
display.setCurrent(canvas);
canvas.start();
}
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
canvas.stop();
}
}
and the output
Running in the identified_third_party security domain
java.io.IOException
Uncaught exception java/lang/NullPointerException.
at javax.microedition.lcdui.ImmutableImage.getImageFromStream(Image.java:968)
at javax.microedition.lcdui.ImmutableImage.(Image.java:939)
at javax.microedition.lcdui.Image.createImage(Image.java:313)
at example.AnimationCanvas.(AnimationCanvas.java:25)
at example.AnimationMidlet.(AnimationMidlet.java:25)
at java.lang.Class.runCustomCode(+0)
at com.sun.midp.midlet.MIDletState.createMIDlet(+34)
Thanks for your reading!
I'm building a dummy app to see how it's working the pushregistry alarm, but I don't get it working.
When I run it, I don't see anything...
Any idea?
here is my code (LWUIT with SDK 2.0, S40)
package mobileapplication2;
import com.sun.lwuit.Display;
import com.sun.lwuit.Form;
import com.sun.lwuit.Label;
import javax.microedition.io.ConnectionNotFoundException;
import javax.microedition.io.PushRegistry;
import javax.microedition.midlet.*;
/**
* #author S40
*/
public class Midlet extends MIDlet implements Runnable {
public Midlet() {
Display.init(this);
}
public void startApp() {
Display.getInstance().callSerially(this);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void run() {
try {
PushRegistry.registerAlarm(getClass().getName(), System.currentTimeMillis() + 100000);
Form f = new Form("Example");
f.addComponent(new Label("HOLA"));
f.show();
} catch (ClassNotFoundException ex) {
System.out.println("NOT FOUND");
ex.printStackTrace();
} catch (ConnectionNotFoundException ex) {
System.out.println("CONNECTION");
ex.printStackTrace();
}
}
}
I get it finally working
This is my final code if you want to take a look
java.util.Calendar cal = Calendar.getInstance();
cal.setTimeZone(TimeZone.getTimeZone("GMT"));
cal.set(Calendar.MONTH, Calendar.NOVEMBER);
cal.set(Calendar.DAY_OF_MONTH, 18);
cal.set(Calendar.AM_PM, Calendar.PM);
cal.set(Calendar.HOUR_OF_DAY, 15);
cal.set(Calendar.MINUTE, 27);
cal.set(Calendar.SECOND, 0);
System.out.println("CALE " + cal.getTime().toString());
Date d = new Date();
long l = PushRegistry.registerAlarm(getClass().getName(), cal.getTime().getTime());
I want to develop a client app for website .
I want the app to reside in system tray when minimised.
I dont know how to accomplish this task .
Is their any example for this type of operation.
The key here is to set the implicit exit to false Platform.setImplicitExit(false);
Also is important to show and hide the stage in a new thread.
Platform.runLater(new Runnable() {
#Override
public void run() {
stage.show();
}
});
Platform.runLater(new Runnable() {
#Override
public void run() {
stage.hide();
}
});
Next, the whole code:
import java.awt.AWTException;
import java.awt.MenuItem;
import java.awt.PopupMenu;
import java.awt.SystemTray;
import java.awt.TrayIcon;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.net.URL;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.stage.Stage;
import javafx.stage.WindowEvent;
import javax.imageio.ImageIO;
/**
*
* #author alvaro
*/
public class TrayTest extends Application {
private boolean firstTime;
private TrayIcon trayIcon;
public static void main(String[] args)
{
launch(args);
}
#Override
public void start(Stage stage) throws Exception {
createTrayIcon(stage);
firstTime = true;
Platform.setImplicitExit(false);
Scene scene = new Scene(new Group(), 800, 600);
stage.setScene(scene);
stage.show();
}
public void createTrayIcon(final Stage stage) {
if (SystemTray.isSupported()) {
// get the SystemTray instance
SystemTray tray = SystemTray.getSystemTray();
// load an image
java.awt.Image image = null;
try {
URL url = new URL("http://www.digitalphotoartistry.com/rose1.jpg");
image = ImageIO.read(url);
} catch (IOException ex) {
System.out.println(ex);
}
stage.setOnCloseRequest(new EventHandler<WindowEvent>() {
#Override
public void handle(WindowEvent t) {
hide(stage);
}
});
// create a action listener to listen for default action executed on the tray icon
final ActionListener closeListener = new ActionListener() {
#Override
public void actionPerformed(java.awt.event.ActionEvent e) {
System.exit(0);
}
};
ActionListener showListener = new ActionListener() {
#Override
public void actionPerformed(java.awt.event.ActionEvent e) {
Platform.runLater(new Runnable() {
#Override
public void run() {
stage.show();
}
});
}
};
// create a popup menu
PopupMenu popup = new PopupMenu();
MenuItem showItem = new MenuItem("Show");
showItem.addActionListener(showListener);
popup.add(showItem);
MenuItem closeItem = new MenuItem("Close");
closeItem.addActionListener(closeListener);
popup.add(closeItem);
/// ... add other items
// construct a TrayIcon
trayIcon = new TrayIcon(image, "Title", popup);
// set the TrayIcon properties
trayIcon.addActionListener(showListener);
// ...
// add the tray image
try {
tray.add(trayIcon);
} catch (AWTException e) {
System.err.println(e);
}
// ...
}
}
public void showProgramIsMinimizedMsg() {
if (firstTime) {
trayIcon.displayMessage("Some message.",
"Some other message.",
TrayIcon.MessageType.INFO);
firstTime = false;
}
}
private void hide(final Stage stage) {
Platform.runLater(new Runnable() {
#Override
public void run() {
if (SystemTray.isSupported()) {
stage.hide();
showProgramIsMinimizedMsg();
} else {
System.exit(0);
}
}
});
}
}
As far as I know it will be possible in JFX 8. Right now the best solution is to embed your application into AWT and hide the AWT window itself.
I have a TextField in a form:
private TextField cc1F = new TextField("", "", 250, TextField.ANY);
Once click button OK, then set cc1F field's Constraints to:
cc1F.setConstraints(TextField.UNEDITABLE);
then I am getting an exception:
java.lang.NullPointerException
at com.sun.midp.lcdui.DefaultInputMethodHandler.setConstraints(+63)
at javax.microedition.lcdui.TextField$InputMethodClientImpl.setConstraints(+20)
at javax.microedition.lcdui.TextField.setConstraints(+37)
at com.zousys.j2me.zmail.gui.view.HeaderView.menuAction(+146)
.....................................
Anyone know this?
The example of code was tested with simulator WTK 3.0 and device Samsung Chat
http://www.gsmarena.com/samsung_ch#t_527-4096.php and the test passed. :)
I think that the problem is caused by device model or the object cc1F is null.
import java.io.UnsupportedEncodingException;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.TextBox;
import javax.microedition.lcdui.TextField;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
public class TextFieldMIDlet extends MIDlet implements CommandListener {
private Form form;
private Command cmdExit;
private Command cmdSetConstraints;
private Display display;
private TextField textField;
public TextFieldMIDlet() {
form = new Form("Testing constraints");
cmdExit = new Command("Exit",Command.EXIT, 1);
cmdSetConstraints = new Command("Set Constraints",Command.ITEM, 1);
textField = new TextField("", "", 250, TextField.ANY);
form.addCommand(cmdExit);
form.addCommand(cmdSetConstraints);
form.append(textField);
display = Display.getDisplay(this);
form.setCommandListener(this);
}
protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
// TODO Auto-generated method stub
}
protected void pauseApp() {
// TODO Auto-generated method stub
}
protected void startApp() throws MIDletStateChangeException {
display.setCurrent(form);
}
public void commandAction(Command c, Displayable d) {
if (c == cmdExit) {
this.notifyDestroyed();
} else if (c == cmdSetConstraints) {
try {
System.out.println("Set...");
if (textField.getConstraints() == TextField.UNEDITABLE) {
textField.setConstraints(TextField.ANY );
} else {
textField.setConstraints(TextField.UNEDITABLE );
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
}