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Showing Stage/Dialog more than once in javafx application that is launched by Platform.startup()


Showing Stage/Dialog more than once in javafx application that is launched by Platform.startup()

By : user2185518
Date : November 22 2020, 04:01 AM
around this issue You want to use Platform.setImplicitExit(false).
code :


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showing a message dialog only once , when application is launched for the first time in android

showing a message dialog only once , when application is launched for the first time in android


By : Todd Lan
Date : March 29 2020, 07:55 AM
With these it helps I've developed an application in android and one of the important requirements is to show a message dialog for language support ONLY when the application is running for the first time ,then it will disappear each time the user is running the application again , I've tried to use shared preferences but it didn't work , is there is any other way to do that ?? , Use this function in onCreate handler:
code :
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    ...
    if (isFirstTime()) {
        // show dialog
    }
    ...
}


/***
 * Checks that application runs first time and write flag at SharedPreferences 
 * @return true if 1st time
 */
private boolean isFirstTime()
{
    SharedPreferences preferences = getPreferences(MODE_PRIVATE);
    boolean ranBefore = preferences.getBoolean("RanBefore", false);
    if (!ranBefore) {
        // first time
        SharedPreferences.Editor editor = preferences.edit();
        editor.putBoolean("RanBefore", true);
        editor.commit();
    }
    return !ranBefore;
}
JAVAFX-8 CANCEL ACTION Close the stage, using Dialog from controlfx in Javafx?

JAVAFX-8 CANCEL ACTION Close the stage, using Dialog from controlfx in Javafx?


By : user2139176
Date : March 29 2020, 07:55 AM
this one helps. OK i got this by searching through the internet and just have to consume my event and primarystage will not exit.
code :
primaryStage.setOnCloseRequest(new EventHandler() {
    public void handle(Event t) {
        t.consume();
        Action response = Dialogs.create()
                .owner(new Stage())
                .title("Exit ??")
                .masthead("Do you want to Exit ??")
                .actions(Dialog.Actions.OK, Dialog.Actions.CANCEL)
                .showConfirm();

        if (response == Dialog.Actions.OK) {
            primaryStage.close();
            System.exit(0);

        } else if (response == Dialog.Actions.CANCEL){

        }

    }
});
WPF application exits immediately when showing a dialog before startup

WPF application exits immediately when showing a dialog before startup


By : Natalie
Date : March 29 2020, 07:55 AM
around this issue By default, the ShutdownMode of a WPF application is OnLastWindowClose. In your code you show a single window and then close it. So the last window is closed and the application shuts down. Then while shutting down, you show another window. Since the application is shutting down, the window is immediately closed.
So everything is working as designed and programmed by you.
Trying to open a JavaFX stage after calling Platform.exit()

Trying to open a JavaFX stage after calling Platform.exit()


By : Samo222
Date : March 29 2020, 07:55 AM
Hope this helps As the Javadoc says, Platform.exit() terminates the JavaFX Application Thread.
http://docs.oracle.com/javase/8/javafx/api/javafx/application/Platform.html#exit--
javafx stage can't be resized after showing a dialog

javafx stage can't be resized after showing a dialog


By : Battlefrog
Date : March 29 2020, 07:55 AM
will help you This is a JavaFX bug that occurs when running on linux on a virtual machine. I have the same issue on CentOS 7 when runnning on VMWare using oracle jdk 1.8.0_152.
The bug ticket for this issue is located here: https://bugs.openjdk.java.net/browse/JDK-8140491
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