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How do I appear/dissapear a button on MOUSE EVENT?

Posted on 2010-08-27
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Last Modified: 2013-11-11
Hi all,

I'm trying to make my own flash player (not one of the packed ones gives me what I need) and I'm trying to make appear and dissapear the big middle "play/pause" button whn the user hovers the mouse. I've made a symbol (graphic) out of a JPG image and named it playBtn with Alpha = 0 (it will have auto play from the start) and solved all the AS3 errors in Flash CS5 but still the button don't appear (or dissapear if I start with Alpha = 100%).

Here's my code.

Any ideas?

Thanks in advance.
//Import for the Tween Class to fade controls out
import fl.transitions.*;
import fl.transitions.easing.*;
import flash.events.MouseEvent;

var playBtn:Object = new Object();

playBtn.addEventListener(MouseEvent.MOUSE_OVER, showBtn);
playBtn.addEventListener(MouseEvent.MOUSE_OUT, dimBtn);

function showBtn(e:MouseEvent):void{
	playBtn.alpha = 1;
}

function dimBtn(e:MouseEvent):void{
	playBtn.alpha = 0;
}

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Question by:Caracena
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6 Comments
 
LVL 39

Expert Comment

by:blue-genie
ID: 33540346
are your showBtn etc methods triggered?
why have you made it an Object ?

might be easier if you upload your file
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LVL 6

Author Comment

by:Caracena
ID: 33540406
Dunno if the methods are triggered and I really don't know why an object... didn't know what else to decalre it. That might be the couse but I don't know what else to put in there.

I can't upload the file. It says that there's a file inside the .fla with the extension .xfl. Tried to compress it and got the same result.

How can I send it?

Thanks!!!!!
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LVL 39

Expert Comment

by:blue-genie
ID: 33540776
put a trace inside your method


trace("show btn called");

check your output window - does it display the message when you mouseover the button?

i don't know about the xfl extension thing, try chaning your fla to filename.txt and upload that. (literally just change the extension)
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LVL 6

Author Comment

by:Caracena
ID: 33541975
Thanks again blue-genie.

Tried tracing it but the output is white. Maybe I've put it wrong. Here's the file. It turns out that XFL extension is the new FLA extension for CS5. It's just a renamed ZIP containing an XML structure of the project (much like Flex). I guess EE guys will have to include it in the allowed extensions.

I saved it in CS4 FLA and now it's trully an encrypted file (like before).

BTW the middlePlayBtn (the one I'm trying to change on mouse event) has alpha 0. It's the layer 17.

Thanks again.
CUSTOM-BAR-PLAYER-CS4.fla
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Accepted Solution

by:
blue-genie earned 250 total points
ID: 33548433
Hi again. when you compile the movie, ie. publish it - does it not give you an error?
you should have a compiler error tab which shows you issues and why you are not able to compile a file.

ok, step 1.
the graphic in the middle, change it to a movieclip, give it an instance name.
step 2
remove the var middlePlayBtn:Object = new Object line

your code should now work, ie. button not visible, rollover it the button is visible.

some quick FYI
if you have something on the stage and you want to be able to do something with it you must have it as a movieclip so that you can give it an instance name to reference it with.
if you place the thing on the stage directly you do not need to declare it in code, ie. var something:Something ... if you do it will throw an error.
if you are doing things with AS3 classes and you use addChild() to place it on the stage at runtime, then you would have to declare it.

hope that helps.
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LVL 6

Author Closing Comment

by:Caracena
ID: 33562903
Sorry for the late response. I've got involved in other subject.

Great detailed explanation... worked like a charm ;)

Thanks!
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