Develop Reference

Is there any alternative for setWindowAnimations(Android) in Harmony OS?

I am developing a Harmony application and I want to animate the Dialog window
this code is from android and this type of animation I want to add
Window dialogWindow = dialog.getWindow();
dialogWindow.setWindowAnimations(R.style.CustomDialogAnimation);
// properties that needs to be attached to Dialog window
duration="75"
fromXScale="0"
fromYScale="0"
toXScale="1"
toYScale="1"
I didn't find anything matching documentation like setWindowAnimations.
I tried writing this code but hit a dead end after getting the dialog window. How to add animation properties to this dialog window.
CommonDialog commonDialog = new CommonDialog(getContext);
Window dialogWindow = commonDialog.getWindow();
Is there any other way to code this?

According to the team, HarmonyOS does not currently support to add animation properties to dialog window. Please stay tuned on HarmonyOS official websites.

Slick2d fullscreen adds black bar

I am trying to make my java slick2d game fullscreen capable. It launches into fullscreen fine initially with this code:
Container app = new Container(this);
DisplayMode current = Display.getDesktopDisplayMode();
System.out.println(current.getWidth() + "x" + current.getHeight());
Start.setFullscreen(current.getWidth(), current.getHeight());
app.setDisplayMode(Start.FULLSCREEN_WIDTH, Start.FULLSCREEN_HEIGHT, true);
app.setResizable(true);
app.setTargetFrameRate(60);
app.setClearEachFrame(true);
app.setAlwaysRender(false);
app.start();
(The Start class holds a few constant variables that the rest of the program references)
I can also turn off fullscreen in my update method with this code:
if (gc.getInput().isKeyPressed(Input.KEY_ESCAPE)){
if (gc.isFullscreen()){
gc.setFullscreen(false);
} else {
AppGameContainer app = (AppGameContainer)gc;
app.setDisplayMode(Start.FULLSCREEN_WIDTH, Start.FULLSCREEN_HEIGHT, true);
}
}
When I run the program and press escape, it becomes a window and looks fine but when I try to put it back into fullscreen mode, it occupies the whole screen but there is a black bar at the top of the window and the displaying area is squished to whatever size the window was. Here is a screenshot of this effect:
Also, when I switch to fullscreen the console prints INFO:Starting display 1440x900 which is the correct screen size of my display.
I am using a MacBook Air 13-inch running 10.9.2 (Mavericks).

How does NetBeans' Splash Screen feature work?

New to NetBeans and just noticed that in the File >> Project Properties >> Application dialog there is a text field labeled Splash Screen that allows you to specify a path to an image that you would like displayed when your program is launching.
I want to customize the way my splash screen works (adding a progress bar, etc.) and would like to code it from the ground up but don't know where to start. What are the best practices for Java/Swing-based splash screens?
Thanks for any and all input!

The project properties -> Application -> Splash Screen allows you to add an image to an application. This property sets a value in the MANIFEST.MF called SplashScreen-Image: e.g. SplashScreen-Image: META-INF/GlassFish316x159.jpg This property will automatically cause the image to display as a splash screen. It does not work inside NetBeans, and must be run outside the IDE.
There is a tutorial Splash Screen Beginner Tutorial that details how to use it more detail. The tutorial was done for NetBeans 6.8, but will work on 7.2.1 which is the latest at the time of this post.

I'm not sure how NetBeans does it, but Splash Screens are supported by the JRE since version 6. See http://java.sun.com/developer/technicalArticles/J2SE/Desktop/javase6/splashscreen/

Splash screen is just a instance of java.awt.Window or undecorated javax.swing.JFrame.
To create window just say new Window(null), then set size and position (using tookit you can calculate where the screen center is) and then say window.setVisible(true)
Due to this is your own window you can do what you want: set layout, image, add process bar to the SOUTH etc.
You can also use JFrame: new JFrame().setUndecorated(true)`

There are a couple of ways to do this.
To do a simple splash screen (an image) you can specify this in the command line of you java application.
Here is a simple example
java -splash:<file name> <class name>
However, if you want a progress bar, you are going to have to do something a little more complicated, and write some code yourself. This is done in the following way.
Create a JWindow (or Window or undecorated JFrame) component with your splash screen elements
Set it to visible
Do the rest of your Swing GUI startup code
Set your JFrame to visible, then immediately follow with setting the JWindow to visible(false)
This should show the splash almost immediately, and then hide once the your application is fully loaded.
To see some splash screen code, take a look here. The implementation in the link only shows how to achieve what you can with the -splash command, but it will give you a good start to also include the progress bar that you requested.

I hope this helps you, it is a small example of how to create yourself a simple splash screen using a dummy Progress Bar:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class SplashScreen extends JWindow
{
private static JProgressBar progressBar = new JProgressBar();
private static SplashScreen execute;
private static int count;
private static Timer timer1;
public SplashScreen()
{
Container container = getContentPane();
container.setLayout(null);
JPanel panel = new JPanel();
panel.setBorder(new javax.swing.border.EtchedBorder());
panel.setBackground(new Color(255,255,255));
panel.setBounds(10,10,348,150);
panel.setLayout(null);
container.add(panel);
JLabel label = new JLabel("Hello World!");
label.setFont(new Font("Verdana",Font.BOLD,14));
label.setBounds(85,25,280,30);
panel.add(label);
progressBar.setMaximum(50);
progressBar.setBounds(55, 180, 250, 15);
container.add(progressBar);
loadProgressBar();
setSize(370,215);
setLocationRelativeTo(null);
setVisible(true);
}
public void loadProgressBar()
{
ActionListener al = new ActionListener()
{
public void actionPerformed(java.awt.event.ActionEvent evt)
{
count++;
progressBar.setValue(count);
if (count == 50){
timer1.stop();
execute.setVisible(false);
//load the rest of your application
}
}};
timer1 = new Timer(50, al);
timer1.start();
}
public static void main (String args[]){
execute = new SplashScreen();
}
}
Cheers!

Also consider to build your application on top of the NetBeans Platform (a Swing-based RCP). One of the many benefits: it comes with a customizable splash screen with progress bar.
Sample progress bar:
http://platform.netbeans.org/tutorials/nbm-paintapp.html#wrappingUp
Port a Swing application to the NetBeans Platform:
http://platform.netbeans.org/tutorials/60/nbm-porting-basic.html
Further links:
http://netbeans.org/features/platform/index.html
http://netbeans.org/features/platform/all-docs.html

If your application is build using NetBeans Platform, then here's a tutorial about splash screen customisation: http://wiki.netbeans.org/Splash_Screen_Beginner_Tutorial

There is a sample Javafx equivalent of Splash screen. However this splash screen is basically a java swing applet that is called from javafx to be displayed to the user and simulates more or less eclipse and netbeans splash screen using progress bar and titles for the loaded contents. This is the link.
You must be able to get the code and separate out the splash screen code written in java swings and use it for yourself.
This is a custom java swings splash screen. and hence to center the splash screen it uses the traditional
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Dimension labelSize = l.getPreferredSize();
setLocation(screenSize.width / 2 - (labelSize.width / 2),
screenSize.height / 2 - (labelSize.height / 2));

How to make full screen java applets?

I am designing a psychology experiment with java applets. I have to make my java applets full screen. What is the best way of doing this and how can I do this.
Since I haven't been using java applets for 3 years(The last time I've used it was for a course homework :) ) I have forgotten most of the concepts. I googled and found that link:
Dani web
But in the method described in above link you have to put a JFrame inside the applet which I have no idea how to do it.
Whatever I need a quick and dirty method b'cause I don't have much time and this is the reason why I asked it here.
Thanx in advance

The obvious answer is don't use applets. Write an application that uses a JFrame or JWindow as its top-level container. It's not a huge amount of work to convert an applet into an application. Applets are designed to be embedded in something else, usually a web page.
If you already have an applet and want to make it full screen, there's two quick and dirty hacks:
1). If you know the screen resolution, just set the applet parameters to be that size in the HTML and then run the browser in full screen mode.
2). Run the applet in appletviewer, rather than a web page, and maximise the appletviewer window.

Why not just open a new Frame from the applet (either from the "start()" method or, preferably, after the user presses an "open" button) and set it to be maximized?
JFrame frame = new JFrame();
//more initialization code here
Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
frame.setSize(dim.width, dim.height);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
Don't forget: The JFrame should be created and opened from the EDT. Applet start() is not guaranteed to be called on that thread, so use SwingUtilities.invokeLater(). Of course, if you opt for the button route, button listener is called on the EDT, so you should be safe.

I think you want to use WebStart. You can deploy from a browser but it is otherwise a full blown application. There are a few browserish security restrictions, but, as you're using an Applet currently, I think I can assume they're not a problem.

I've found a solution for this problem that works fine. Tested in Linux 64 bits (Chrome and Firefox) and in Windows 7 64 bits (Chrome and Explorer)
The only problem has been that my applet uses all the space in the browser and when the user switch off the full screen mode, the applet is not scaled to the browser size. The solution has been to keep the previous size of the applet before to enter in a fullscreen mode and then, set this size when the applet returns to the normal mode:
public void setFullScreen() {
if (!this.fullscreen) {
size = this.getSize();
if (this.parent == null) {
this.parent = getParent();
}
this.frame = new Frame();
this.frame.setUndecorated(true);
this.frame.add(this);
this.frame.setVisible(true);
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice[] devices = ge.getScreenDevices();
devices[0].setFullScreenWindow(this.frame);
this.fullscreen = true;
} else {
if (this.parent != null) {
this.parent.add(this);
}
if (this.frame != null) {
this.frame.dispose();
}
this.fullscreen = false;
this.setSize(size);
this.revalidate();
}
this.requestFocus();
}

JOptionPane won't show its dialog on top of other windows

I have problem currently for my swing reminder application, which able to minimize to tray on close. My problem here is, I need JOptionPane dialog to pop up on time according to what I set, but problem here is, when I minimize it, the dialog will pop up, but not in the top of windows when other application like explorer, firefox is running, anyone know how to pop up the dialog box on top of windows no matter what application is running?

Create an empty respectively dummy JFrame, set it always on top and use it as the component for the JOptionPane instead of null. So the JOptionPane remains always on top over all other windows of an application. You can also determine where the JOptionPane appears on screen with the location of the dummy JFrame.
JFrame frmOpt; //dummy JFrame
private void question() {
if (frmOpt == null) {
frmOpt = new JFrame();
}
frmOpt.setVisible(true);
frmOpt.setLocation(100, 100);
frmOpt.setAlwaysOnTop(true);
String[] options = {"delete", "hide", "break"};
int response = JOptionPane.showOptionDialog(frmOpt, msg, title, JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE, null, options, "delete");
if (response == JOptionPane.YES_OPTION) {
removeRow();
}
frmOpt.dispose();
}

Old post, but I was struggling with this.
My problem was more with Javafx allowing the JOptionPane to go behind the current Java window.
Therefore I used the following which does what the original poster asked by putting the JOptionPane in front of all windows; even JAVAFX.
Firstly the old JOptionPane:
JOptionPane.showMessageDialog(null, "Here I am");
Now an JOptionPane that stays in front:
final JDialog dialog = new JDialog();
dialog.setAlwaysOnTop(true);
JOptionPane.showMessageDialog(dialog, "Here I am");
And for fun here is everything in one long line:
JOptionPane.showMessageDialog(
((Supplier<JDialog>) () -> {final JDialog dialog = new JDialog(); dialog.setAlwaysOnTop(true); return dialog;}).get()
, "Here I am");
You can make a static method some where that will return the JDialog for you and then just call it in the JOptionPane to clean up your code a bit.

Are you using one of the canned JOptionPanes? (Like JOptionPane.showCOnfirmDialog(...))
You may want to look at extending JDialog and making your own dialog panel, and then calling myDialog.setAlwaysOnTop(true);

Windows is blocking this operation since XP.
The scenario before was like:
Your a tiping in some text in an editor and not recognize that another dialog is coming to front when you are tipping the text. The coming dialog gets the focus and you are tiping in the new dialog. Maybe you click enter after you are ready and do this in the wrong dialog, which is asking whether you realy want to delet your hard disk ;)
The come to front call in java is only working for java windows.
The possibibilty to notify the user of a new window is to implement a Frame, which will highlighted/flashing in the windows task bar.

Correction the post above..
I have resolve my problem as below:
this.setVisible(true); // show main frame
MyDialog dialog = New MyDialog(this, true); // show my custom dialog
dialog.setVisible(true);
this.setVisible(false);
it works fine for me :)

You might think about using a JFrame instead. It may give you a little more flexibility.
If you are using a JFrame and you want it to popup on top of the other windows use:
myFrame.setVisible(true);
myFrame.setState(Frame.NORMAL);
The setState will show the window to the user if it was in minimized state previously.