Actionscript 3 :: Detecting Alt KeyDown Keyboard Event In Flex?
Nov 9, 2009
I am trying to detect the key down event for the alt key in flex. I have a standard event listener for KeyboardEvent.KEY_DOWN and KeyboardEvent.KEY_UP but don't get any response for the alt key (or ctrl key).
I know I can detect if the alt key was pressed via a mouse event, but I want to update the cursor when the alt key is pressed to show it will perform a different action from when it's not pressed.
I am using Safari on a Mac for developing so let me know if perhaps it's an isolated issue.
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May 23, 2011
All i have a flex editable datagrid. By default if i press the left navigation arrow key , it moves to the left but not to the next cell. I would like to override the keydown event such that if the left navigation arrow key is pressed down i set the focus to the next cell on the left.
In short the user needs to be able to navigate using the keyboard through the cells using just like in excel(currently the arrow keys move between characters within a cell).
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Oct 27, 2011
I'm using a component in a cairngorm PopupWrapper. I want to listen to the KeyboardEvent.KEY_DOWn event on the component but it doesn't seem to be dispatching it. Is it because it's in PopupWrapper? Is there anyway I can get it to dispatch the event?[code]
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Apr 5, 2011
I am new to flex framework.I have created an application using flex framework 4.1 which is having various components that are shown to the end user in the form of a popup window using <mx:TitleWindow>.This titlewindow is closed either on the click of the close button (displayed in it's titlebar) or by pressing the "escape key" on the keyboard.I coded a functionality wherein I close the current TitleWindow whenever an 'escape' button is pressed.Here is what I did.On the keydown event of TitleWindow I called this function.[code]I had to repeat this code for every TitleWindow that I have used in the project.How can I write the above functionality only once and reuse it amongst various TitleWindow and other components so that the code for the same is not repeated across various components? Every TitleWindow that I am using has different code, scripts and layout in it.
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Sep 14, 2009
I have a function that is called on a keydown event. Inside the function I do this:
function keyDownHandler(event : KeyboardEvent) : void {
if(cursorMoveCnt < 5 && event.keyCode != Keyboard.ENTER) {
trace(i);
trace(cursorMoveCnt);
stage.focus = arrayOfBoxes[i+cursorMoveCnt];
cursorMoveCnt++;
}
I want to call the same function after every 20 seconds even if enter key is not pressed by the User. Can I create the same effect as pressing the Enter key through code in some way so that the code within the if condition inside the function gets executed?
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Jul 31, 2009
I'd like to arrange things so that I have a chain of keyboard event handlers in my flex application, all of whom are queried when key down events occur. Basically, when a visual component is on screen, it is a candidate for handling a key press event. Something like this (clearly this is pseudocode):
<application handles_keys="F5, F6">
<tabGroup>
<tab1 handles_keys="pgup, pgdn">
<control handles_keys="0,1,2,3,4,5,6,7,8,9" />
[code]...
I have a class written that will respond to the key events the way I want it to, so how do I register one or more instances of this class to have the results I want? Also, note that there are some situations where this class should receive events that would ordinarily be handled by a UI component. The TAB key is the main example; I have a few cases where I want my key down event handler to fire even when the focus is on a text field.
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Apr 13, 2010
I'm trying to get familiar with the whole keyboard event detection thing.Here's my sample code.
<fx:Script>
<![CDATA[
import flash.events.KeyboardEvent;
[code].....
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Feb 2, 2011
I have a textArea and would like to prevent the default behavior for certain keys such as the enter key from being run upon user input. However, KeyboardEvent is not cancelleable so preventDefault does not work.
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Mar 2, 2009
I was working on some simple keyboard movement for an AS3 game, but running into trouble. Some keys would work, some won't!.I started a new flash just to test the keyboard, and confirmed what I was seeing. Some keys like "D" will work, while others like "A" don't seem to. Here is the code from the keyTest program.
Code:
package
{
import flash.display.*;[code]..
So when I press D or W, this flash outputs "68 down" or "87 up" or whatever as intended. But if I press keys like A or S, it outputs nothing. Wut?
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May 6, 2010
An error appears :Incorrect Number of arguments Expected 1 Source :detectKey();
stop();
loaderInfo.addEventListener(ProgressEvent.PROGRESS ,updateloader);
stage.addEventListener(KeyboardEvent.KEY_DOWN, detectKey);
function detectKey(event:KeyboardEvent):void {
[Code].....
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Dec 21, 2011
I have create a game and added keydown event on Stage but but problem is user need to click on stage then it start capturing keydown event. I want that when game window open after that user don't need to click on flash stage area for unable keydown event..
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Dec 18, 2009
I have a custom TitleWindow component that is registered to listen for keyboard events from the user (so that esc closes the window, enter saves, etc.). However, in my testing I've found a couple cases where my keyboard event handlers don't fire. My best guess as to why this is happening is that there is some child component somewhere that has stolen focus and is stopping the keyboard events from propagating.
Unfortunately, due to the large number of components in my TitleWindow, I have no good way of knowing who has stolen the focus. My question then is, are there any good tips / techniques / tools for debugging focus issues and event propagation in Flex? Basically, I need something that will tell me who has the focus at any given time and who's handling an event at any given time... is that possible?
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Oct 23, 2010
In the attached code sample, keyboard events just don't work. The control never reaches handleKeyDown, no matter which key I press.
[Code]...
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Apr 1, 2009
I'm confused about AS3's key handling. I just want a script that goes "If "R" is pressed, gotoAndStop(#). While in AS2 this was extremely easy, many examples I see now have variables in them. So all I know so far:
Code:
stage.addEventListener(KeyboardEvent.KEY_DOWN/UP/Whatever I want, nameFunction)
function nameFunction (evt:KeyboardEvent):void {
}
I've seen people with code like if (evt == 82) or something like that, but it doesn't work. C
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Jul 22, 2011
I am making the board game Shogi in actionscript 2 and I have a question on how to detect a particular imput.I have a movie clip on the stage, I want it so that if I hold down the keyboard button "p" and then click on the movie clip, it will go to the movie clip's frame 2 (not the entire flash project's frame 2, just the particular icon's frame 2. I need this because I am using movie clips as game pieces and in Shogi, certain game pieces can be promoted. I also was wondering how to detect what frame it is on.
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May 29, 2009
I am working on a small section of my game and am attempting to detect key presses from an external class but I cannot get it to work. This code worked just fine when within the document class but now it's unresponsive. I'm not getting any errors, simply no activity whatsoever.Here's the applicable code:
My document class:
Code:
package
{
import flash.display.MovieClip;
public class Engine extends MovieClip
[code]....
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Jul 1, 2011
I'm using Flex 4.5.1 with AIR 2.7 (and Flash Builder 4.5.1) to build an app for the Blackberry Playbook.
The app has a large textarea that needs to be resized when the soft keyboard shows up. I am able to hook into the soft keyboard events and do things there.
Now, I want to resize the textarea to fit the remaining part of the screen when the keyboard shows up. I know the current and destination size and want to use a smooth animation to show the textarea resizing. (I can't already set the height and can see the textarea being correctly resized in the keyboard_activating event - but I want to do it through an animation). I've tried using the Animate class, the spark.effects.Move class and none of them seem to work in this case. They seem to run the animation but the screen does not get refreshed!
[Code]...
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Oct 19, 2010
If I plan to implement 100 objects on stage to be listen to mouse and keyboard input, is using "function" call responsive enough? How good does eventlistner work?
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May 12, 2010
I have to embed an external movieclip in my swf, andi'd want to send it keyboard events by code.
the swf to be embedded resides in the same domain as the parent swf.
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Feb 25, 2011
My app has a datagrid as well as many other UIComponents (buttons, menus, etc). I have a general stage KeyDown handler as well as a specific one for the datagrid. The behavior I'm trying to implement is turning out to be trickier than I thought: basically, when using the keyboard arrows I would like the datagrid to always hear about such commands, even if it's not in focus.
Possible approaches I thought of:have the DG be in focus at all times: seems stupid / tricky - basically would need to remember to give focus back to DG after any interaction with the rest of the UI, which obviously doesn't scale.try to set the DG in focus from stage KeyDown handler: seems like the timing doesn't work since the DG gets focus too late to "hear" the event.from the stage keydown handler, check if the DG is not in focus, and if so pass it the event. This seems to make sense in theory, but I'm not sure how to do this properly since my stage keyDown handler uses capture, and thus seems to catch the same event over and over.
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Jul 7, 2011
I am trying to learn JavaScript and I am wondering whether JavaScript has a event listener just like ActionScript's ENTER_FRAME. Basically, I want this event listener to listen "all the time" not just wait for any particular instance (mouse click, keyboard event) of event.
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Nov 1, 2009
i have a question to ask about asynchronous key controls This was what i did
[Code]...
and i checked with [URL]...?newspage=6249 and it looked more or less the same, so why is it that when i move my character and when i hold down a key, it just keeps on listerning to that keypress event listener, instead of just executing the other event. So say, i tap left and after which i tap right, it will work just fine, but if i hold left and tap right, the event listerner will still be listening to the left key. So, i was wondering could anyone point me in a direction as to how should i make my code stop listening to an event as soon as another event has been dispatched?
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Jul 8, 2011
I am doing this inside a module containing viewstacks and their childs.Calling onInit() on creationComplete of module.When I am inside one of the childs of a viewstack of this module and press Enter, it doesnt not invoke the listener function at all (bp inside this does not get hit).
private function onInit():void{
this.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);
}[code]..........
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Apr 23, 2009
When game starts, the car runs automatically. Then we click the SPACE button, movement of car stops. And the door of structure near car is available to CLICK.
But in coding I got this error code:
TypeError: Error #2007: Parameter listener must be non-null.
at flash.events::EventDispatcher/addEventListener()
at shfg_fla::MainTimeline/key_pressed()
This is some part of my game code...
case Keyboard.SPACE :
removeEventListener(Event.ENTER_FRAME,car_movement);
--street_mc.bluehome_mc.door_btn.addEventListener(MouseEvent.MOUSE_DOWN,door_ready)
[Code]....
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Jul 4, 2009
I have a question about making a function for two different kinds of event. It's not critical but I would like to reduce my lines of code and just be more efficient. Basically I have a button on the stage called "Enter". I also want the user to have the option of hitting the enter button. I don't have a problem making these two separate handlers for these events (i.e. one handler for the KeyboardEvent and one handler for the MouseEvent):
[Code]...
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Oct 24, 2011
how can you switch the mouse event with keyboard event in the folowing example:
Code:
var qno=0;var rnd1; var rnd2;
tick.visible=false;cross.visible=false;
var right_answers=0;var wrong_answers=0;
[Code]....
i know that u have too define key up and down functions and in the beginnig give the keys we are using the false value, but how to make it that after i pess of a key you cant press in again unless you go to the next question that is the enable_disable in the following code. How would that function looked in case of keyboard event
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Jul 26, 2011
How do? Edit the field with numeric keypad, not a full keyboard my code: <s:TextInput text="{TransactionObject.cartao}" id="item" restrict="0123456789" /> app for Android and playbook
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Mar 28, 2011
I'm building a drag and drop quiz. each draggable mc (drag#) has a base class of DragDrop. I want to detect when an drag mc has been dropped on a target
Code:
if(this.hitTestObject(target)) {}
And then add a new drag from the drops Array. so that each time a drag finds its target a new one appears. I tried to make a public var named dropped to switch from "yes" to "no" in the drop function. and even tried making the drop function public.
This code is on the timeline
stop();
var drag1:Drag1;
drag1 = new Drag1;
addChild(drag1);
drag1.x = 100;
drag1.y = 100;
[Code] .....
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Jul 5, 2009
ok so i am trying to change a boolean with a keyboard event
my code is this:
Code:
stage.addEventListener(KeyboardEvent.KEY_UP, keyPressed);
function keyPressed(evt:KeyboardEvent):void {
if (evt.keyCode==Keyboard.SPACE) {
if (!gamePaused) {
[Code]......
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Nov 28, 2010
I am creating a game where you have to use the up and down buttons on the keyboard to avoid movie clips. For some reason it won't register when i press the keys down. Here is my code:
[Code]...
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