Tag Archives: Flash

AS3, Tutorials

FlashSize – simple browser resizing

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How to allow SWFs to display at 100% width/height in your browser – but enforce a minimum width and height, in case of a smaller browser window size than you’ve designed for.

Until recently, I’d used other Flash/browser resize managers when I needed to ensure a SWF is embedded in HTML at 100% width and height, but with support for a minimum width and height setting. But I recently needed a solution the didn’t depend on external JavaScript, due to not having control of the page the SWF is embedded in.

With my simple FlashSize script, all you need do is call:

import com.spikything.utils.FlashSize;
FlashSize.setup(minWidth, minHeight);
Cybersecurity, Flash, Tutorials

Local playback security in FlashDevelop and Flash CS3 / CS4

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I’ve seen a few people get into a pickle over this one. When you’re developing and testing locally, you need to set the ‘Local Playback Security’ setting (sometimes referred to as the ‘use network services’ option) depending on whether you wish to access local external files (e.g. XML files, or images) or some other server (e.g. your dev backend server). You can’t access both from a locally running SWF anymore, since it’s a security risk. So here’s how to set that option in Flash CS3 / CS4 or from within FlashDevelop.

AS3, JavaScript

How to use ExternalInterface to integrate AS3 with JavaScript

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Here’s a quick snippet of code for setting up intercommunication between a SWF and JavaScript, using ExternalInterface:

import flash.external.ExternalInterface;

// Calling a JavaScript function from AS3 (with optional parameters)
if (ExternalInterface.available) ExternalInterface.call("javascriptFunction", param1, param2);

// Implementing a JavaScript callback in AS3 (flashFunction is called when JavaScript calls javascriptFunction)
if (ExternalInterface.available) ExternalInterface.addCallback("javascriptFunction", flashFunction);