Tech Tips: Compress Transparent PNGs with Flash

Do you use transparent PNGs in Flash, Flex or AIR? Want to cut your application file size in half?

Embedding transparent PNGs dramatically increases the size of your Flash, Flex and AIR applications. Photoshop and Fireworks dot not have any compression available for transparent PNGs (that I am aware of).

Import your PNGs into Flash, give them a linkage id, and export the file as a SWF. Make sure to set your compression level in the publish settings (default is 80%). Using this method, I was able to cut the file size in half for a number of applications.
Continue reading Tech Tips: Compress Transparent PNGs with Flash

Tech Tips: How to fix fuzzy pixels in Flex

What are fuzzy pixels? Semi-transparent lines that appear on the edges of your Sprites that make them appear fuzzy or blurry. This is the result of positioning a custom drawn Sprite (using the graphics property) on non-whole number pixels (for example myObject.x = 1.5).

Your probably wondering why anyone would set a Sprite to an decimal number of pixels? Well, most of the time this occurs when the positioning is based off of a mathematical equation. For example: myObject.x = this.width / 2. This would produce 50.5 if the width of the container is 101. One of the biggest problems with this is that the fuzzy pixel problem has a waterfall effect. Everything contained within that sprite placed at a decimal number position will have semi-transparent edges. Another reason would be designers that set positioning of items to half pixels in Photoshop and attempting to reproduce the design pixel perfect in Flex.
Continue reading Tech Tips: How to fix fuzzy pixels in Flex