is it possible to loading of tabs in jtabedpane dyanamically in java..
that means i have frame that consinting of one tabbedpane..
in that i have 10 tabs and in each tab consting of another tabbedpane and in that each tabbedpane has 4 tabs and each tab consisting buttons and textfields......
when i login into my project the next frame takes more time to visible....
this is happens why because i have more tabbedpanes in my frame so that it takes the lot's of time to visible..
my question is..
is it possible to load tabs content dynamically when i click the tab in tabbedpane.....
or is it possible to load tabbedpanes fastly......????????
It should be quick to load tab panes. What must be taking a moment is the content in the tabs. You can create tabs dynamically with the same way you create them when you build the GUI initially. My guess is that the content is your real problem. Depending on what that is you can load some items on threads other than the EDT and then come back. (Look into SwingWorker).
You can make use of SwingUtilities.invokeLater to push the creation of your inner tab panes to occur after initially displaying your tab pane..
Create the outer tab pane
Create stub panels for all tabs in the outer pane - this will put placeholders in for your tabs, making it look to the user that they have already been created.
Create content for the first tab.
Iterate over tabs 2 to n, creating Runnable instances that setup the content of the tabs, including their inner tab panes. Use these Runnable instances as the param to SwingUtilities.invokeLater. This will put these actions at the end of the EDT, so they will be performed after the current action has completed.
Complete the setup of your outer tab pane, adding it to your JFrame or other container and setting it visible.
Related
I am working with WindowBuilder at the moment but have a problem making it display all panels in the program in the "Components" Window. I have a "StartPanel" for example with a button which when clicked causes the program to switch from "startPanel" to "nextPanel". Everything fine but in this case, "nextPanel" isnt shown in the "components" window, why?
When I however copy all the code which creates the "nextPanel" and write it outside of the "ActionListener" so that I do not have to click a button to create it, it appears in the "components" window. Is there a way to make every panel appear in "Components"? At the moment I have a frame with a getContentPane which has the 2 Panels in it, but only 1 is shown if I add the second one with a button..
I suggest you to create the next panel as a separate component (separate class file) so that you can edit it using window builder any time, and then instantiate it in the action listener.
I have an application I've made whose initial GUI consists of a JTabbedPane with multiple tabs. I want to take one of those tabs and separate it from its parent JTabbedPane, making it its own window. Is there a way other than making a new JFrame, copying the tab's contents and then changing all the method calls?
I'm trying to add an applet to one of my tabs, but each time I try to add it to a certain tab, it's creating a new tab.
I have already made the tabbed pane using netbeans, added panels to both of the tabs and tried to replace the panel with my applet panel and it's not working correctly. My questions is how can I refer to the "Game" tab and add the applet to that panel?
https://dl.dropbox.com/s/q0lfuz9cxp757n8/Screenshot%202014-07-13%2001.06.42.png
Here's what I'm trying
TabbedPane tabbedPane = new TabbedPane();
tabbedPane.gameTab.add(gamePanel);
And it keeps creating a new tab as seen in the image, but I'm trying to add the gamePanel to the existing "Game" tab.
First of all you don't want to keep creating a new JTabbedPane. You want to update the existing tabbed pane.
Read the JTabbedPane API. There are several approaches you could use:
1) Use the remove(...) method to remove the current tab, then use the add(...) method to add a new tab. The API allows you to add a tab to the end or at a specific index. This is probably the easiest.
2) Use the getComponentAt(...) method to get the panel that was added to a specific table. Then you can add any component to this panel, assuming you have a proper layout.
In both cases the question is why isn't the applet added when you initially create the tab?
I'm looking for a way to clone (duplicate) a whole tab (the selected one) in a JTabbedPane. Every time I take the tabwith getSelectedComponent() and add it to the pane, the title of the tab disapnö rs and I get no second tab. But there is no exception.
I tried to copy the currently selected tab. Each tab is a JPanel with a simple JTable on it and I want to get the selected tab two times.
As far as I know, the same swing component can't appear in multiple places in your GUI, so you would actually have to create new instances of all your UI elements for the "copied" tab and set their values to the same values of the first tab / connect them to the same domain objects.
In Swings, a component can be added to only one container. Adding it again to another container will have no effect.
Think about the classic installation process, where you have a "next" button and when you click it the content of the window changes. To represent this situation I thought of two possible solutions:
-when "next" is clicked destroy the current JFrame and create a new JFrame, maybe passing to his constructor useful information (e.g. actual window size, content inserted by the user in the current frame, ...)
-when "next" is clicked remove all the components from the current JFrame and add new components as needed
The first solution looks way better about OOprogramming, because I can keep separate classes for different frames and I can avoid huge methods that empty the frame and repopulate it. However the first solution sounds a bit "dirty" and I should pass lots of parameters to the new frame. To represent this situation I would choose the second solution.
Now think about a menu with an "option" component: in this situation I would create a new JFrame when "option" is clicked, so that I can populate it with option items. Is this a correct solution? Is there a way I can always know which one is the best solution? Are there any solutions I didn't think about?
Destroying the main JFrame would be silly -- not to mention jarring for the user. Just use a single JFrame and change its contents.
To implement an installer wizard, use a single JFrame containing one large JPanel on top and a smaller one containing the "Next", "Back", "Cancel" buttons along the bottom. When the Next or Back buttons are pressed, you replace the large JPanel. You can have many different JPanel subclasses, one for each "page" of the wizard.
There's a LayoutManager called CardLayout which is ideal for implementing this scenario -- it manages a "stack" of components, and only shows one of those components at a time. Use a BorderLayout in the JFrame. Into the center position put a JPanel with a CardLayout. Then add the individual pages of the wizard to that JPanel, so the CardLayout can manage them.
The CardLayout is well suited for this. You just swapout the JPanel contents when the "Next" button is pressed.