Flash MX Tutorial - Preloader
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This document is a tutorial for creating a preloader in Flash MX, based on the lightray tutorial. It provides step-by-step instructions for setting up the Flash document, coding the preloader, and testing its functionality. Users can adjust connection speed settings to observe the preloader's performance during loading.
Flash MX Tutorial - Preloader
- 1. Flash MX tutorial Preloader v2.1 Jukka Paasonen paazio@nic.fi 4/2/2004 1(4) This tutorial is based on the Lightray tutorial. All the necessary information is in this tutorial, but if you wish to have a good looking animation while loading, do first the Lightray tutorial compelitely Open new flash document and give the following properties to it: width : 550px height : 385px background : #002244 Create new layer and name your layers as “koodit” and “loading”. Make a keyframe to the third frame of the “koodit” layer. Also add an empty keyframe to frame 4 in the “loading” layer. Add the following code to “koodit” layer, frame 3: allbits = _root.getBytesTotal(); nowbits = _root.getBytesLoaded(); rightnow = nowbits / allbits; if ( rightnow < 1 ) gotoAndPlay(1); else gotoAndStop(5);
- 2. Flash MX tutorial Preloader v2.1 Jukka Paasonen paazio@nic.fi 4/2/2004 2(4) What happens there, is this: _root presents the main part of the flash which includes everything in your flash getBytesTotal size of the flash in bytes getBytesLoaded size of the part what havebeen loaded to user rightnow our variable which is always under or exactly one This makes the movie repeat the loading intro until the movie is compeletely downloaded. To show how much is loaded to the user, create a dynamic text in the “loading” layer. Make it variable “kukkuu”. Align it to right so it wont jump. Add a line in the code, after rightnow = nowbits / allbits; kukkuu = Math.floor(rightnow*100) + ‘%’;
- 3. Flash MX tutorial Preloader v2.1 Jukka Paasonen paazio@nic.fi 4/2/2004 3(4) Math.floor() is a mathematic function which parses the numbers after the decimal point. To test the functionality of the movie, place something big on the end of the “loading” layer. For example a big picture, about 1 megabyte. Test the movie. Select a slow connection speed from Debug. Select Show streaming from View.
- 4. Flash MX tutorial Preloader v2.1 Jukka Paasonen paazio@nic.fi 4/2/2004 4(4) Now you are able to see if the preloader works like we wanted it. It does. To make it load more quickly or more slowly, adjust the connection speed from Debug.