Solved

JPopupMenu....

Posted on 1998-09-23
2
601 Views
Last Modified: 2008-02-26
I am using the JPopupMenu in response to a button being pressed.  The popup menu shows when I press the button, but if I move the frame which the test app sits in, the popup menu disappears.  Why is this and how can I fix it?
0
Comment
Question by:beemer
2 Comments
 
LVL 2

Expert Comment

by:shchuka
ID: 1224879
I think this is how popup menus behave - they disapper if you move the frame.  Thus you can't really do anything to keep it open.  On the other hand, you can simulate this behavior by declaring some boolean variable that is equal to true if the menu is open and is set to false when it's closed.  Now, when you do something which might close the menu, in that event check whether this variable is set and if yes, open the menu.
0
 
LVL 3

Accepted Solution

by:
sailwind earned 50 total points
ID: 1224880
Popup menus will only appear when you click on the item that generates the
popup menu. When you click on another component, Java assumes that you
no longer want to work with the popup menu and therefore closes it. This is
the way normal windows work. For example, if you pull down the file menu,
but click somewherelse on the screen before making the selection, the file
menu will close since it assumes you don't want it anymore. Same concept.

When you move the window, java takes this as a sign that you want to
interact with the frame now, not the popup menu, and will therefore close the
popup menu.

What you can do is add a componentListener to your window. In your listener,
define the method componentMoved() to pop up the popupmenu if it is needed.
You can use a simple boolean flag like shchuka suggested.

Hope this helped!
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

This was posted to the Netbeans forum a Feb, 2010 and I also sent it to Verisign. Who didn't help much in my struggles to get my application signed. ------------------------- Start The idea here is to target your cell phones with the correct…
In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
Viewers learn how to read error messages and identify possible mistakes that could cause hours of frustration. Coding is as much about debugging your code as it is about writing it. Define Error Message: Line Numbers: Type of Error: Break Down…
Viewers will learn how to properly install Eclipse with the necessary JDK, and will take a look at an introductory Java program. Download Eclipse installation zip file: Extract files from zip file: Download and install JDK 8: Open Eclipse and …

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question