Single start/stop button for looping movie
Dear Friends,
I apologize if this has been addressed already in the forum, as I have had no luck searching here or the web in general for a solution.
I currently have a 23-frame multilayered single-scene animation designed to loop continuously which I would like to add to my portfolio. As such, I am adding a Play button, which I would like to toggle to a Stop (or Pause) button. I currently have an instance of the Play button ("playButton") created.
(You can find this at pineboxmovingco.com/gear_redux.swf)
Besides imploring your assistance in providing the code, I must also ask if this requires (and best practice for) inserting an additional frame at the beginning for the ActionScript, as well as where/what layer to add an instance of the Stop button. I would like the movie to be stopped by default, presenting the Play button, toggling to the Stop button, and back to the Play button, each upon release.
Thank you so much in advance!
Michael T
Phila, PA
So, Ned, insert the stop(); command - with no other code - on each keyframe of the MC like so:
Then, return to Scene 1 and select the MC, inserting the code:
With an additional "stop" command in the first frame:
I must be missing something as it is continues to loop. Any further assistance would be greatly appreciated...
Michael
(UPDATE: Replaced second image with AS reflecting replacement of XXX with "1".)
Message was edited by: turnerator
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import java.awt.Component;
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The main menu runs first and then goes to reading menu. After "Start Reading" button is pressed, the reading process will take readings.
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The attached two VIs are simplified my real application. Any help will be appreciated.
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Steve
Attachments:
Main Menu Test.vi 9 KB
Reading Menu Test.vi 23 KBYou can't have those loops inside of the event structure. Currently, when you press the start button, the reading has to finish before the event case finishes. This will prevent the stop can cancel buttons from being processed by the event structure.
You need another loop that can recieve commands from the event loop. Look up the Queued Message Handler. That should get you a good start on the command process.
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Starting/Stopping a polling loop with a user event.
I keep reading on this forum that placing a loop inside a user event structure is a bad idea because it disables other user events from triggering. However, it seems like a good idea to be able to start and stop a loop from a user event (like a button being pressed or de-pressed) and it seems like a good idea to not have the loop waist CPU resources while it does not need to be running.
So what are the solutions to this? Is a notification the best approach?
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Aside: Why are boolean controls that are of the "Latched" mechanical action always pressed in after their event fires? For instance, the stop button on the attached VI? Shouldn't it be depressed after the user clicks on it because it is "Latch when released?" I've always wired "false" constants to 'variables' of these controls after the event structure fires, but do not find this approach very graceful.
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Wait for Notification for Polling Loop Test.vi 25 KB
wait for notification for polling loop test.jpg 61 KBNickerbocker wrote:
If an error is generated on the first itteration, then the loop is terminated with that error line. Right?
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Can multiple event structures exist in the same block diagram? For some reason I was under the impression that there could only be one event structure that fires at one time. If that structure was in execution then no other Event Structures could fire.... if my information is wrong, then I like your solution. If it is right, then I don't like your solution .
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