I have created an activity that builds a TableLayout dynamically in the onCreate event. But i would like to know if it's possible to know when the system has finished the activity rendering.
When the layout is created statically by XML, we can to do any action in the onLayout event, but seems that when it's created dinamically i have to wait more time or wait for another event until full TableLayout rendering is done.
Any ideas??
Regards
Related
I'm trying to design my LoginActivity to look like my LoginController in iOS. Is there a way to make an activity transparent, or do I need to use a fragment? Thank you!
// My Design
You can achieve this through multiple ways
Create an activity and make its background as transparent in the layout.(Not recommended)
Create an alert dialog within the activity and make the alert dialog background as transparent
Create a dialog fragment make its layout transparent and open it from the activity.
Create a view stub within the same activity layout and inflate the view when required. (Handling back press events might be a difficult task here).
Although the right way would be to create an alert dialog within the activity or creating a dialog fragment or create a view stub. Create an alert dialog if you don't have much events or elements within the dialog since its easy and efficient than creating a dialog fragment for a little dialog. Creating a view stub would be the most efficient way since it simply inflates the view which takes less amount of resource. But don't go with creating an activity for this dialog which is resource intensive and not the correct way.
How to override the Process button in the Process order screen in Acumatica
enter image description here
There may be a way to directly the "Process" function for a specific processing screen but I am unaware of it nor do I see anything obvious in the customizer to do so. You could try to override a method within the Sales Order graph that you know fires within this process and implement your custom logic there. This way it would be hit by both the processing page and whatever action item you override within the order directly.
Sometimes there are actions one wants to take on a Node but one needs access to the Scene or for other reasons needs it to be added to the Scene first.
In Swing, I could use a hierarchy change listener to do this. Is there some type of notification or event when a Node is added to the hierarchy so that getScene will return non-null?
Add a ChangeListener to the node's sceneProperty to be notified to changes of the scene the node is attached to, including when the scene property changes from null to some value.
I have implemented MVP pattern in my GXT project. The system registers customers as part of it function. Also the system user can search for the registered user providing the id.
i have added an OnClick event to the "search customer" button.
/* On click search button */
view.getBtnSearch().addListener(Events.OnClick, new Listener<BaseEvent>() {
#Override
public void handleEvent(BaseEvent be) {
eventBus.fireEvent(new CustomerRegistrationTabSelectionEvent(0, false));
eventBus.fireEvent(new CustomerFetchEvent(view.getValueCustSearchParameter(), view.getValueCustSearchValue(), true));
}
});
The CustomerRegistrationTabSelectionEvent does select the relevant tab and enables other tabs. Thats all it does.
Here is the handler for the custom event CustomerFetchEvent.
eventBus.addHandler(CustomerFetchEvent.TYPE, new CustomerFetchEventHandler() {
#Override
public void fetchCustomer(CustomerFetchEvent event) {
searchCustomer(event.getParameter(), event.getParameterValue(), event.isOpenFirstTab());
}
});
The issue is the search customer method is executed multiple times and if there is a invalid search the error message dialog shows multiple popups. Within the searchCustomer method i call for service which fetch me the customer data or show the popup error message if the search is invalid.
im using GXT 2.2.5 and JRE 1.6.
Could anyone help me in finding out why the code is executed multiple times?
Added Later:
When i run the application first time the code is only executed only once, therefore only 1 popup. Then i logout of the system and log in again (navigating to the same page where the "search customer" button exists.) and the code is executed twice. Likewise equal to the number of times i create/navigate to the particular page, the code executes. Is it actually adding the event handler code without removing the last one every time i recreate the page?
Yes, it seems that 'addHandler' adds handler multiple times, but stores previous context. Your code should add handlers only once, on initialization phase. You can check the number of handlers with 'getHandlerCount' method.
Ya. I fixed it!Here is the solution Unbinding presenters necessary in GWT
U can read more here. http://draconianoverlord.com/2010/11/23/gwt-handlers.html
what happened actually was, the presenter objects where i have registered with HandlerManager to receive events were not garbage collected. Because though i remove the reference to the presenters still the HandlerManager holds a reference to those objects. So every time i kept on creating new presenters on top of the old presenters of the same class. so a event is listened by multiple objects of the same class. so u need to ensure that the unused presenters are garbage collected by removing the registered handlers
in HandlerManager.
I have a bunch of control objects (TextBoxes, to be precise) that get injected into my code using the #FXML annotation during the FXML load.
I would like to save the states of these controls, specifically the text values, when the user closes the Scene by clicking the close box on the title bar.
However, when I trap the CloseRequest event in an OnCloseRequest handler I find that the values of the control variables are null (the original injection works, so this is something that happens in between the loading of the FXML and the calling of OnCloseRequest).
Can anyone explain this behavior and/or suggest how I can get the functionality that I want?
TIA
onCloseRequest is
Called when there is an external request to close this Window. ...
(from Javadoc). One of the meanings of "external request" is when you close the window through OS native window close button. The closeRequest event is not triggered through the programmatic stage.close() or stage.hide() calls. So consider to handle onHiding or onHidden events.
Otherwise post your OnCloseRequest handler code.