![]() Using commentsappropriately is called documenting your code. Those two slashesindicate that the rest of the line is a comment, which Flash completely ignores.Comments are only for programmers, not for the computer. Commentsĭid you notice we introduced one new element? For the Scene 2 BackwardButton, there are a few lines that start with two slashes. To see the final movie, check out buzzkill2.fla. Position the button wherever you want.Įnter the following code: on(release) ![]() Go to the last frame in Scene 1 of the movie (frame 60) on the buttonlayer.ĭrag the Forward Button symbol onto the empty button layer. Notice that there's no way to go beyond the firstscene/slide. Go ahead and play with the movie, using Control Test Movie.Īlways test your movies with Control Test Movie, since that'sthe only way you can properly test your actions. This stop method halts the playhead in its tracks.That is, it stops the Flash movie from playing further. ![]() The only ActionScript you'll seeis stop(). Each scenehas one frame action on its last frame: stop().Ĭlick on the last frame in the actions layer in each scene, and then openthe Actions panel to see the ActionScript. Notice that there are three scenesone for each slide. For the purposes of this tutorial, we'll only deal with thefirst three slides of the presentation, shown in Figure 3≤.įigure3≤ All three slides of the Buzzkill presentation Someone else has created the slides for thepresentation, and it's our job to make sure the presenter can move fromslide to slide. It's for Buzzkill Industries, a young, edgy company thatmakes safety equipment. Let's say our assignment is to create a Flash version of a PowerPointpresentation. We're discussing ithere only because you should know how to do it. Learn More Buy Moving from Scene to Sceneīe careful with scenes: Most animators, and Macromedia as well, don'trecommend using scenes except with long animations. Throw new InvalidOperationException("This method can only be invoked from UI thread.Advanced Macromedia Flash MX: ActionScript in Action, 2nd Edition Public static async Task ShowAsyncIfPossible(this MessageDialog dialog) / return immediately and the new dialog won't be displayed. Var request = _currentDialogShowRequest = new TaskCompletionSource() While (_currentDialogShowRequest != null) Throw new InvalidOperationException("This method can only be invoked from UI thread.") Public static async Task ShowAsyncQueue(this MessageDialog dialog) / This method can only be invoked from UI thread. / for that previous dialog to be dismissed before showing the new one. / ShowAsyncQueue or ShowAsyncIfPossible method - it will wait / If another dialog is already shown using / Begins an asynchronous operation showing a dialog. Private static TaskCompletionSource _currentDialogShowRequest Public static class MessageDialogExtensions This class has extension methods to allow to either ignore a new show request when another dialog is already displayed or queue up the requests: /// If you disagree or don't have the time, resources or skills to implement an alternative - you can create some sort of a wrapper around MessageDialog.ShowAsync() call to either queue or ignore new requests while a dialog is already shown. There are then alternative solutions like displaying a separate screen/page with the UI requiring user to provide some input when it really is required or displaying a non-modal popup somewhere on the side/edge/corner if the user input is optional and hiding it after a moment or some other sort of notification that doesn't break user flow. My personal choice is to avoid using dialog boxes altogether since they are bad for user experience (evil). There are many ways to approach it and the choice might depend on your skills, requirements and preferences. RemoveEventListener(Event.ENTER_FRAME, subtracting2) SetChildIndex(FadeAway, numChildren - 1) // addEventListener(Event.ENTER_FRAME, subtracting2) ĪrrListeners.pop() // poping it out of the array because it will be deleted after the count reaches 0įadeAway.alpha = FAcoef // Some effect like FadeAway ![]() How can i switch through levels (back and forward)? Thanks in advance. Also i tried using 1 frmae for all 10 frames, but i recieve much many warning and the Flash Loader is overloaded. I've tried using different frames for different levels, bit it doesn't work. I've tried using removeEventListeners, but it doesn't work, cause ENTER_FRAME Listeners work one more time after I remove the Event Listeners. This is because i delete every object of the first level and th add the objects from stage 2. But when i enter the second level (frame) the event listeners from the first frame are still working and a recieve a warning saying ' Cannot access an object of null objct reference'. ![]() When i enter 1 level everything is alright. ![]()
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