Actionlistener - for multiple buttons with similar functionality

Hi, all:
I'm working on a calculator program and want to know how to go about making a generic ActionListener for all the functions (i.e. +,-,*,/) so that I don't have to write separate inner classes for each function (i.e. + button, - button, etc.).
I think this generic class should be created within a method that takes parameters. The parameters are then used within the inner class.
What I need to know specifically is whether it's possible to pass a string operator symbol (e.g. "+" or "-") as a parameter in the following context:
class buttonListener implements ActionListener
public void actionPerformed(ActionEvent e)
intField1Val + intFieldVal2;
in this case, the "+" would be the parameter that would change depending on the values provided to the method.
Can this be done??
I'd also appreciate any other feedback you can give m,e on this problem (i.e. how to set up the method...basic structure??)
Thanks!!

Hi there,
One way to do this is as follows:
Button plus = new Button("+");
Button minus = new Button("-");
public void actionPerformed(ActionEvent e) {
String componentHit = e.getActionCommand();
if (componentHit == "+") {
doAddMeth(); // implemented elsewhere
else
if (componentHit == "-") {
doSubMeth(); // implemented elsewhere
~Bill

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Simplification Needed: Multiple buttons with similar execution

Hello,
A vi I am currently working on needs many buttons on the front panel. However, the execution for each is quite simple and similar all throughout.The following figure shows the buttons on the left and right side of the Case Structure. Inside the Case Structure, the same commands remain essentially the same except with the change of a number as the input of the Zaber Write vi (in this case it is a 2). Does anyone have a better idea for me to execute these functions in a more compact way?
Thank you.
Alfredo
Solved!
Go to Solution.

It depends if your buttons are switch action (any combination of buttons can be true: 2^N possible cases)
or latch action (only zero or one can be true: N+1 possible outcomes).
Here is code for both cases as shown.
(If you want some weird, nonconsecutive case numbers, you can index into a lookup table before going to the case structure.)
Overall, your code shows some very odd programming style that makes little sense. Can you attach the actual program?
Message Edited by altenbach on 10-17-2009 02:29 AM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
multiBooleans.png ‏12 KB

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I want to create two buttons for single function and one button for one function. For example, I click button1, the screen will show "clicked1"
If I clicked button2, the screen will show "clicked2". If I click button1 and then click button2, it will show "two button are clicked". However, it does not work in two button with single function. What is the problem? Here is the code.
import flash.display.MovieClip;
import flash.events.MouseEvent;
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It works but I want the screen only shows the "isClicked" only when I click button1. But now when I click button1, "isClicked" and "two buttons are clicked" show at the same time.
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import flash.events.MouseEvent;
var button1:MovieClip=new Button1();
button1.x=200;
button1.y=200;
addChild(button1);
var button2:MovieClip=new Button2();
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button2.y=250;
addChild(button2);
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var isClicked1:Boolean;
button1.addEventListener(MouseEvent.CLICK, onClick);
button2.addEventListener(MouseEvent.CLICK, onClick2);
button1.addEventListener(MouseEvent.CLICK, onClick3);
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function onClick3(evt:MouseEvent):void{
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Dear All,
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Hello
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Hi Shephalika,
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Hi,
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One function for multiple buttons?

I have a county map on my timeline with a list of each county as buttons ( there is 88 counties). I want to highlight the county on the map when I click the county's name from a list.
when I test this out, only the last one gets highlighted. I know I am missing something really simple. it does work if I write code for each button but I can't to seem to get it to work with only writing the function once for all buttons
var countyHigh:MovieClip = adamsHighlight;
var countyCheck:MovieClip = kickout.adamsCM;
kickout.adamsCheck_btn.addEventListener(MouseEvent.CLICK, highlightCounty);
kickout.allenCheck_btn.addEventListener(MouseEvent.CLICK, highlightCounty);
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countyCheck = kickout.ashlandCM;
function highlightCounty(event:Event):void{
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else countyHigh.alpha = 0;
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when I click all there buttons, the all highlight ashland county instead of their own county. I am using Flash Professional CS5 and only been playing with Flash for about a year.

var previouslyHighlightedCounty:Movieclip;
function highlightCounty(e:MouseEvent):void{
if(previouslyHighlightedCounty){
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e.currentTarget=previouslyHighlightedCounty

I am writting a test using a sequencer to test for multiple button click

I'm using flex sdk 4.1 and have a situation where a button click is sometimes called twice. I am writting a test for this using a sequencer and it will run for at least one button click, what I am not sure is how to test for multiple click events(which shouldn't happen, but occours randomly in my project)
package tests.view
    import flash.events.MouseEvent;
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The only way you could test for that type of circumstance... one where something may happen... is to do so with a timeout. In other words, you cannot let the test pass simply because the first event occurred.
Two ways to handle this... with sequences:
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fail('i shouldnt be here');
In the Waiter for the 2nd click, you would specify a timeout handler. That timeout handler will get called in the 2nd click does not occur in the specified time... (finding that time is the hard part). The default timeout handler fails the test, however, in your case, your timeout handler would just happily do any assertions needed and move on. A timeout does not necessarily mean failure... in your case, it is correct
Second choice:
You could create a timer. Create an event handler for the button click which increments a counter. Start the timer, do your test. However, have your test pending on the timer's completion rather than something like the click.. In that case, you would then be able to just check the count:
private var clickCount:int = 0;
[Test]
public function testButtonClick():void {
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     view.addCommentBtn.dispatchEvent( new MouseEvent( 'click;, true, false ) );
private function checkClickCount( e:Event ):void {
assertEquals( 1, clickCount );
However, I can't imagine how the test you are describing could ever yield more than one click event... I am guessing the problem is elsewhere, but this will help you verify
Mike

How to use the same script for multiple buttons

Hi,
I've only just started using flash so any help would be great!
I'm creating a blockbusters type game, I have a grid of 20 buttons and I need them (individually) to turn blue on click and red on double click. I've managed to do it with the first one using this code;
var clicked:Boolean = false;
bn1.addEventListener(MouseEvent.CLICK, bn1click);
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var clickedList:Array = new Array();
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function btnDClick(event:MouseEvent):void {
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We need to have single invoice created using ERS (MRRL) functionality in the below scenario:
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Hi,
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ok. i got it! :))
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Actionlistener - for multiple buttons with similar functionality

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