Flex namespace usage

A friend in the official group of flex Step 1 asked me how to customize the namespace of my component in a way like xmlns: MX = "http://www.adobe.com/2006/mxml? Go to the compiler parameter in Adobe and find that you can use the-namespace and-include-namespaces parameters to specify your own URL.

First, we need to clarify the concept of manifest. xml.
Adobe is a kind of ActionScript 3.0 class library list. With the combination of manifest. xml and namespace, you can easily set your own namespace.

The following is a manifest. xml file: (Note: This file needs to be created by yourself and must be placed under the root directory of the Flex Library Project)
<? XML version = "1.0"?>
<Componentpackage>
<Component id = "testinga" class = "testinga"/>
</Componentpackage>
This XML file defines a class with ID = "testinga" (Note: If this class is in the package, you should also write the package address, for example: cn.org. kenshin. testinga)

Use the following parameters:
-Namespace http://www.k-zone.cn manifest. xml
-Namespace: declare a URI as the namespace of the http://www.k-zone.cn, and use manifest. XML as the current ActionScript 3.0 inventory file.
-Include-namespaces http://www.k-zone.cn
-Include-namespaces: Include the namespace of the http://www.k-zone.cn in the Library (SWC.

Of course, if the current compilation environment is Flex Builder (flash builder), the above content will become simpler.

Copy the Library to the Lib folder where you want to use it, and then use the following statement:
Xmlns: zone = "http://www.k-zone.cn"
Finally, see:

Now we have a question:NamespaceWhat is the difference between SWC generated in the way of manifest. xml and unspecified SWC? We can use the decompression software to open SWC and get the following two files:
Catalog. xml
Library.swf

The contents in catalog. XML are as follows:

<? XML version = "1.0" encoding = "UTF-8"?> <SWC xmlns = "http://www.adobe.com/flash/swccatalog/9"> <versions> <SWC version = "1.2"/> <flex version = "3.2.0" build = "3958"/> </versions> <features> <feature-script-deps/> <feature-components/> <feature-files/> </features> <Components> <Component classname = "testinga" name = "testinga" uri = "http://www.k-zone.cn"/> </Components> <libraries> <library path = "library.swf"> <script name = "testinga" Mod = "1244462205848" signaturechecksum = "3185651073"> <def id = "testinga" /> <Dep id = "object" type = "I"/> <Dep id = "as3" type = "N"/> </SCRIPT> <digests> <digest type = "SHA-256" signed = "false" value = "inline"/> </digests> </library> </libraries> <files> </Files> </SWC>
Please note that the red bold part is the one we previously specified. Namespace .