Is it possible to change style gradually, for example make some transition? Yes. You will need to use setStyle rather than style classes because classes are going to be static things defined in a css. There is no direct support in JavaFX css for animation. You need to perform the animation steps in Java code … Read more
No, you can’t add components at a specific cell. What you can do is add empty JPanel objects and hold on to references to them in an array, then add components to them in any order you want. Something like: int i = 3; int j = 4; JPanel[][] panelHolder = new JPanel[i][j]; setLayout(new GridLayout(i,j)); … Read more
It’s not two competing mechanisms – a JPanel is a Container (just look at the class hierarchy at the top of the JPanel javadocs). JFrame.getContentPane() just returns a Container to place the Components that you want to display in the JFrame. Internally, it’s using a JPanel (by default – you can change this by calling … Read more
Documenting the findings for future reference: The following are code from android.support.v4.app.FragmentActivity /** * Modifies the standard behavior to allow results to be delivered to fragments. * This imposes a restriction that requestCode be <= 0xffff. */ @Override public void startActivityForResult(Intent intent, int requestCode) { if (requestCode != -1 && (requestCode&0xffff0000) != 0) { throw … Read more
Yes, it is possible using JOptionPane.showOptionDialog(). Something like this: JPanel panel = new JPanel(); JLabel label = new JLabel(“Enter a password:”); JPasswordField pass = new JPasswordField(10); panel.add(label); panel.add(pass); String[] options = new String[]{“OK”, “Cancel”}; int option = JOptionPane.showOptionDialog(null, panel, “The title”, JOptionPane.NO_OPTION, JOptionPane.PLAIN_MESSAGE, null, options, options[1]); if(option == 0) // pressing OK button { char[] … Read more
Before actually using GUI dialogues, consider using console prompts. Quite often you can get away with simple “y/n?” prompts, which in bash you achieve via the read command.. read -p “Do something? “; if [ $REPLY == “y” ]; then echo yay; fi If console prompt’s just won’t cut it, Zenity is really easy to … Read more
This is how bindings work (and that’s a good thing), but your problem is easily solved. Bindings are fired in the order specified by a widgets binding tags (also known as bind tags or bindtags). Unless you specify otherwise, the bindings happen in the following order: if there is a binding directly on the widget … Read more
You must not start the parallel processing in your UI thread. See the example under the “Avoid Executing Parallel Loops on the UI Thread” header in this page. Update: Or, you can simply create a new thread manuall and start the processing inside that as I see you have done. There’s nothing wrong with that … Read more
You might need a translucent frame without decorations. Quick demo OSX ] You can take advantage JLabel displays simple HTML import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.text.*; import java.util.Date; import java.lang.reflect.Method; import java.lang.reflect.InvocationTargetException; /** * Simple demo on how a translucent window * looks like when is used to display the system clock. * … Read more