What is air ?. How to open the air file? How Does Flex run air files?

1. When installing Adobe AIR, it is similar to Java's JVM.
Adobe AIR allows you to run the AIR application on the desktop {
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{
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On the download page there is a sample application http://labs.adobe.com/technologies/air/samples/

2 install {
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Of course, we choose flex builder with the highest development efficiency. In addition, there is also a set of tools for command line compilation.
Http://labs.adobe.com/technologies {
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3 Adobe AIR Introduction
Adobe & reg; air is a cross-platform runtime that can use the existing {
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The air program runs based on Adobe AIR runtime, so the developed program operates in different ways {
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Air allows you to use the most familiar development environment and select the tools you are best. For example
* Flash/flex/ActionScript
* Html/JavaScript/CSS/ajax

So the air application can
* Based on flash or flex, that is, the application container is flash or Flex (SWF)
* Based on flash or flex that contains HTML or PDF, that is, the application container is flash/flex, which contains HTML or PDF
* Based on HTML, the application container is HTML, JS, and CSS.
* Based on the HTML containing flash, flex, or PDF, that is, the container is HTML and contains flash, flex, and PDF.

4. Use flex builder to create the first flex AIR application
We will create an AIR application based on the SWF file and open flex builder3. Of course, flex builder is based on Eclipse and is actually an Eclipse plug-in.
Create a project of the Flex project type. Flex has two application types: web-based running in Flash Player and Adobe AIR runtime running on desktop. {
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Two files are initially generated: The main mxml file and the XML program configuration file.

5. Write an AIR application
All {
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Open the mxml file in the Code view and edit it. Add a title attribute to the javaswedapplication tag. The value is set to "Hello World !"
Add a label component to the receivwedapplication element.
After the windowedapplication starts the label, insert the style block immediately. The final code is as follows:

<? XML version = "1.0" encoding = "UTF-8"?>
<Mx: Export wedapplication xmlns: MX = "http://www.adobe.com/2006/mxml" layout = "absolute" Title = "Hello World">
<Mx: style>
Application
{
Background-image :"";
Background-color :"";
Background-Alpha: "0.5 ";
}
</MX: style>
<Mx: Label text = "Hello air" horiz verticalcenter = "0"/>
</MX: Using wedapplication>

Select Adobe AIR application to run.

6. Package applications
Package the application into an air file for release. The air file is a compressed file containing all application files. You can use the air file to install the application.
First, make sure that there are no compilation errors and the operation is normal, and then select export-Flex release version.
The export prompt will require a digital signature, create one, fill in the required information OK, successful, double-click the exported air file to install, test.