Hi I am quite new to actionscript 3 and I would like some clarification on the use of classes. I am trying to use a AS3Commons UI project from http://sibirjak.com. But I am unsure on how to use some of their classes. The way I have it formatted in one of my keyframes is:
import com.AlertBox; // The location of the alertbox class
import com.AlertTutorialStep1; // The location of the example AlertTutorialStep1 class
var alertbox:AlertTutorialStep1 = new com.AlertTutorialStep1; // Creating an instance of the example class in the AlertTutorialStep1 doc
alertbox.AlertTutorialStep1(); // Trying to access the AlertTutorialStep1() function which is in the AlertTutorialStep1 class
But I am unable to access the function AlertTutorialStep1() and unsure why I am getting the error, can someone provide me with some insight? http://sibirjak.com/osflash/blog/tutorial-creating-an-alert-box-with-the-as3commons-popupmanager/
Try and avoid using the timeline if possible. I think that OOP and the Flash timeline can work if you know what you're doing, but stackoverflow is full of questions from beginners struggling with the timeline and classes, and these tend to be difficult to debug. Try to set your project up with a single Main document class which instantiates all the other classes you need for your project.
That said, assuming you have the AlertBox and AlertTutorialStep1 classes, and their dependencies, in the right directories relative to it, I think your code will work if you set the document class of your .fla to the AlertBoxTutorial1 class.
Again assuming the packages are all set up correctly, you could try replacing your existing code with the following:
//import com.AlertBox; // Don't need to import this, AlertTutorialStep1 imports and uses it
import com.AlertTutorialStep1; // The location of the example AlertTutorialStep1 class
var alertbox:AlertTutorialStep1 = new AlertTutorialStep1(); // Don't need to fully qualify the class as it is already imported in the line above
this.addChild(alertbox); // Need to add the instance to the stage
//alertbox.AlertTutorialStep1(); // AlertTutorialStep1() is the constructor of the class and can't be invoked via an instance of it
Related
I'm using IntelliJ IDEA to refactor some Kotlin code. I have two classes in the same file and I want to move a function from one class to another using Refactor -> Move (F6), but that doesn't work, and I get tooltip message that says: "Cannot perform refactoring. Move declaration is only supported for top-level declarations and nested classes".
Am I doing something wrong? Or that refactoring is simply not supported?
[edit1] I tried to do the same operation with Java classes and everything works perfectly; so why this is not allowed for Kotlin?
[edit2] I thought that the problem is only when to two classes are in the same file, but it turns out that is not possible to move a function between classes in separate files!
It's a well-known Kotlin-only problem.
in IDEA (both free and paid editions);
in Android Studio.
Official ticket
There is an easy, but slightly janky, work around.
You just need to wrap the function you want to move in a class:
class TopLevelClass {
fun functionToMove() {
//...
}
}
wrap it in a new class
class TopLevelClass {
class TemporaryMoveClass{ /** you can now move this entire new class */
fun functionToMove() {
//...
}
}
}
and after you do the refactor, delete the temporary wrapper class you created.
The janky part is that you need to replace all instances of functionToMove() with NewTopLevelClass.functionToMove() yourself.
One of the major benefits of doing it this way, rather than just cut and pasting it yourself, is that as soon as you wrap it in the TemporaryMoveClass it will tell you any parameters you need to introduce(Refactor>Extract>Parameter). And then you can do that inside the original TopLevelClass before you move it. (this preserves the types of any TopLevelClass properties you were using, and automatically introduces the new parameter(s) into the existing function calls)
Good afternoon,
I don't know if what I want to do is possible, so here goes.
I have a module that extends Page_Controller, but I want certain functions to be accessible via the site root.
Eg: getMyDataObjectList();
Currently, they only work if I go through the normal MVC routing structure.
I've found that when I place the function 'getMyDataObjectList' within '/mysite/code/Page.php' it works.The problem is, I don't want to place the code in there. I want it bundled with my Custom Module, but to work the same as though it was in 'mysite/code/Page.php'
[Example Scenario]
site root: http://[somesite].com
By default, the 'Page.ss' template loads.
I would like the theme developer to be able to call my module functions (API) within any template/Layout page, and have the result returned from the site root
Currently, this only works if I move the "API" functions to '/mysite/code/Page.php'
If the code is in my module, then data is only returned when you go to:
http://[somesite].com/[module_controller]
Can this be achieved? If so, how?
Thanks for your assistance.
[Update - Code Solution]
///>MyExtension.php
class MyExtension extends Extension{
public function getMyDataObjectList(){
return 'object list goes here!';
}
}//class
///>[Module] => _config.php
Object::add_extension('Page_Controller', 'MyExtension');
And as always, I do a (/dev/build?flush=1) just in case.
Thanks to: 'simon_w'
Yes, this is relatively straightforward. Simply, create an Extension subclass with your methods in them and then add that to Page_Controller. An Extension subclass is almost exactly the same as a DataExtension, they're just for classes other than DataObjects.
Is it possible to setup Aptanta to provide code assist for classes loaded with a framework's autoloading class?
For example:
$myInstance = Project_Loader::load('MyClass');
Here, my class would be loaded from a hierarchy as soon as it was found, so if I had these libraries setup:
/library/Library1
/library/Library2
/library/Library3
If MyClass was in Library2, it wound find Library2_MyClass. Aptana works great if I initiate the object using:
$myInstance = new Library2_MyClass();
But is there any way to let Aptana know to load it and use Code Assist/Intellisense based on Project_Loader::load('MyClass')?
Not possible at the moment, as it's very dynamic, and specific to a framework.
What you can do is to add a comment that will hint for the type.
For example:
/* #var $myInstance MyClass*/
$myInstance-> // and you'll get the MyClass code-assist.
I've come across the this problem dealing with subclasses of the Windows.UI.Xaml.Button class in C++/CX, and I'd like to know what's going on.
If I add a control instance to a grid, everything works as expected.
If I subclass the control and add an instance of the subclass, everything works as expected.
But if I subclass my subclassed control and add an instance of it to the grid I get E_INVALIDARG thrown during Grid::Children::Append(). What gives?
My code looks roughly like this (LayoutRoot is a Grid in MainPage.xaml, this sample has been tested in an empty simple metro application):
// Scenario 1: This works (duh!)
LayoutRoot->Children->Append(ref new Button());
// Scenario 2: This works
LayoutRoot->Children->Append(ref new MyButton1());
// Scenario 3: This doesn't work, it will cause an E_INVALIDARG to be thrown by the collection
LayoutRoot->Children->Append(ref new MyButton2());
// This is how MyButton1 and MyButton2 is defined
public ref class MyButton1 : public Button {
public:
MyButton1() {};
~MyButton1() {};
};
public ref class MyButton2 : public MyButton1 {
public:
MyButton2() {};
~MyButton2() {};
};
Note that this question is slightly similar to this question, but the error and the scenario is sufficiently different for me to post this one separately.
UPDATE: I think I'm on the right track understanding this problem after reading this article by Ian Griffiths, but I need to know more regarding the behavior of this specific example. Full code to repeat this problem can be found here, see the 3rd post in the thread.
UPDATE: From what I've learned so far, not all WinRT types support inheritance. I have no reliable source references for this, but I've read that the Windows.UI.Xaml classes should support inheritance, but other WinRT types won't. The Windows.UI.Xaml.Controls.Button class obviously does, while my own MyButton1 doesn't. I'd like to know what I'd have to do to make MyButton1 'inheritable' the way the Button class is.
I've found that replacing the Windows.UI.Xaml.Controls.Button class with Windows.UI.Xaml.Controls.ProgressBar will make scenario 2 fail, which tells me that the ProgressBar class isn't (yet) possible to subclass. This observation is what makes me believe that a class need to do something explicit in order for it to be inheritable.
I use singletons often when I need to have a shared instance object across multiple controllers. However, what I don't like is that I still have to import the singleton header at the top of a class whenever I want to use it.
Is there anyway to create an object that's only instantiated once at runtime that all classes can access globally without having to import it?
well, you could just throw #import "MONSingleton.h" in the prefix header... just don't get too carried away, because it can make your build times unnecessary long*.
*or shorter, if used correctly.