Can some one give an example of how I can use a window which can transfer user to another window.
for example I want to give the user a suggestion and if he press ok he will be transfer to the application manager setting (specifically to the settings of specific app so he can change it), ho can I do that?
thank you
Use JOptionPane. For example:
int option = JOptionPane.showMessageDialog(frame,"Prepare for redirecting");
if(option==JOptionPane.OK_OPTION)
{
SwingUtilities.invokeLater(()->{
new MyAnotherWindow().setVisible(true);
}
}
Related
At the moment , im working with java gwt and i stopped studdenly because one problem occured. I want that my information (for example string) will save after refresh button is clicked.
// user enters something in TextArea textArea1 object
Window.addWindowClosingHandler(new Window.ClosingHandler() {
public void onWindowClosing(Window.ClosingEvent closingEvent) {
//maybe there is a function or what
pleaseSaveInfomation(textArea1);
}
});
I tried this , but i know how to implement it correctly to my source code:
https://stackoverflow.com/a/14220746/5010218
The last(worst) chance is to store data from textArea in file.txt , after refreshing i could read info from file and thats all. But maybe GWT has a specific handler/method/class or what to handle this.
Thats for your opinion and help.
I had the same problem. You can easily overcome it with this.
import com.google.gwt.storage.client.Storage;
private Storage stockStore = null;
stockStore = Storage.getLocalStorageIfSupported();
Please read documentation
http://www.gwtproject.org/doc/latest/DevGuideHtml5Storage.html#UsingStorage
When a browser close a window (because of a refresh, or the user has closed the window, changed the url, etc), a script is not allowed to prevent this action. It's not specific to GWT.
However, you can suggest to the browser-agent to show a confirmation to the user. You can do this with the message property of the closing event.
In GWT:
Window.addWindowClosingHandler(new Window.ClosingHandler() {
public void onWindowClosing(Window.ClosingEvent closingEvent) {
closingEvent.setMessage("Confirm ?");
}
});
You shouldn't rely on this event to store your data, as a lot of condition can prevent you to do this. You should maybe periodically store a draft to the local-storage or to the server.
You probably want to store your data in sessionStorage. In GWT, this the Storage class.
Before I start, Hi. This is is my first question here. I am not good with Java so have been trying and improve that and here it goes.
I am trying to create an email client and server application using sockets in Java. However I have been running into a problem. I have created a jFrame which is basically the Welcome window. The code is too huge to post so I'll post the relevant portions. There is a preferences jDialog. When the OK button on the dialog, an action handler comes in to play. The code:
private void okActionPerformed(java.awt.event.ActionEvent evt) {
Welcome wel = new Welcome();
wel.setStatusBar("Pressed OK");
dispose();
}
Obviously, the setStatusBar() sets the text of the statusLabel. The code for setStatusBar():
public void setStatusBar(String s)
{
statusLabel.setText(s);
}
Also, the preferences dialog is opened through menu item with this code:
private void jMenuItem2ActionPerformed(java.awt.event.ActionEvent evt) {
settings pref=new settings(null,true);
pref.show();
}
The problem is if I set the status label from any other class, for instance settings class, it does not reflect but if I do so from the Welcome class ( the class where the statusLabel is present), it works fine. This problem is not only limited to this setStatus() but virtually pops up whenever I try to use a method of a different class.
If you guys need more of the code, I could post it. I would be grateful if could help a Java beginner out.
Thanks.
private void okActionPerformed(java.awt.event.ActionEvent evt) {
Welcome wel = new Welcome();
wel.setStatusBar("Pressed OK");
dispose();
}
You're creating a new (hence the keyword new) object of type Welcome. This new object is different from the already existing object of type Welcome, that you have created earlier. It thus has its own label, and you're setting the text of this different label, which is not displayed anywhere in the screen.
Java objects work like regular object. Let's say you would like a cool logo on one of your blue t-shirts. You go to a T-shirt vendor and ask him to print a cool logo. The vendor doesn't have your blue t-shirt. If the vendor gets another red t-shirt from his shop and prints the logo on this red t-shirt, your blue t-shirt will still have no logo at all.
For the vendor to be able to print a logo on your blue t-shirt, you need to give him this blue t-shirt. Same in Java: you need to pass the existing Welcome object to the preferences dialog, and the actionPerformed method must set the label on this Welcome object. Not on a new Welcome object.
I want to create confirm dialog box inside Model class.
I created window which has several text boxes and after entering the values user can save data. At the point of saving data I want to add a confirm dialog box asking "Are you sure to save these data ?"
So inside Model class I tried to put
org.adempiere.webui.window.FDialog.ask(1,null,"Are you sure to save these data ?");
When I add this into my code, it will give errors and I can't build the project.
If anyone knows how to add confirm dialog box in model class? Please help me to do this...
In Adempiere
For Swing Class (i.e.) model class you can use by below
int response = JOptionPane.showConfirmDialog(null, Are you sure to save these data ?
"", JOptionPane.YES_NO_OPTION);
if (response == JOptionPane.YES_OPTION)
;
else
;
or
Adialog in Client modules cann't used in Base modules
ADialog.ask(WindowNo, null,"Are you sure to save these data ?");
FDialog Should be used only in ZKWebui package, never use zk classes in base/client modules
org.adempiere.webui.window.FDialog.ask(1,null,"Are you sure to save these data ?")
In window/tab before save you can use "Commit Warning" column in Window,Tab & field (Application Dictionary)
Hope it will helps you.
You can use JOptionPane but not ADialog or FDialog.
Usage of ADialog throws build error. As its is defined in client folder, you cant use it in the upper hierarchy.
You can find the build order from here
I have this.setVolumeControlStream(AudioManager.STREAM_MUSIC); at the start of all activities in my application so when the user presses the volume up or down buttons, he controls the media volume.
I have a popup window in my program and when that appears the user can no longer control the volume.
Looking at similar questions it seems that setting up onKeyup/down listeners can interfere with the process - but I have not set any up - the only listeners I have for the popup window are setOnClickListeners for the buttons and a setOnDismissListener for the window.
How can I fix this?
Looks like you have to call setOwnerActivity on the Dialog object.
Documentation from the method:
Sets the Activity that owns this dialog. An example use: This Dialog will use the suggested volume control stream of the Activity.
While not tested, this should do the trick. There is also the possibility to use setVolumeControlStream.
I had been creating the popup window with
my_popup_window = new PopupWindow(layout, x, y, true);
I then change it to this...
my_popup_window = new PopupWindow(layout);
my_popup_window.setWidth(x);
my_popup_window.setHeight(y);
and the volume control started to work again. I don't understand why - but it worked.
I just do this pop.setFocusable(false). and it worked.
though the Mick's answer didn't work for me, this is for posterity.
//Declaration
PopupWindow mWindow;
...
//Constructor
mWindow = new PopupWindow(context);
...
//Prepare to Show
mWindow.setContentView();
mWindow.setBackgroundDrawable();
mWindow.setFocusable(false);
...
setting setFocusable to false helped my activity capture onKeyDown() again.
In my GWT application, I want to ask a user confirmation when he navigates out of the current application, i.e. by entering a URL or closing the browser. This is typically done by registering a ClosingHandler and setting the desired dialog message in the onWindowClosing method. This seems to work well.
However, if the user tries to navigate say to http://www.gmail.com (by typing it in the URL bar) and hits Cancel to indicate he doesn't want to navigate, then my app keeps running but the browser's URL bar keeps indicating http://www.gmail.com. This causes a number of problems later in my application and will give the wrong result if the user bookmarks the page.
Is there a way to automatically reset the URL when the user presses Cancel?
Or, alternatively, is there a way to detect the user pressed the Cancel button? If so, is there a way to set the URL without triggering a ValueChangeEvent? (I could add some logic to prevent this, but I'd rather use a built-in mechanism if it exists.)
Not sure if this works but did you try: History.newItem(History.getToken(), false); to reset the URL? It does set the history token without triggering a new history item.
I managed to do this. It looks like GWT DeferredCommand are executed after the confirmation window has been closed. This, combined with Hilbrand's answer above, give me exactly what I want. Here is exactly what I do:
public final void onWindowClosing(Window.ClosingEvent event) {
event.setMessage(onLeaveQuestion);
DeferredCommand.addCommand( new Command() {
public void execute() {
Window.Location.replace(currentLocation);
}
});
}
Where currentLocation is obtained by calling Window.Location.getHref() every time the history token changes.
I solved this by creating a custom PlaceController and replacing the token in the url. Not an ideal solution but it works!
if (warning == null || Window.confirm(warning)) {
where = newPlace;
eventBus.fireEvent(new PlaceChangeEvent(newPlace));
currentToken = History.getToken();
} else {
// update the url when user clicks cancel in confirm popup.
History.replaceItem(currentToken, false);
}