Setting the icons of resources associated with my application using a plist (cocoa osx)

My application creates some xml files that are proprietary to my application and I would like to associate these file types with my application, originally I set the icons of newly created files using setIcon:forFile:options: but it seems like I should be using a plist instead. In the documentation I found how to set the icon of the application itself but I could not find any description about how to开发者_如何学运维 set icons of other associated file types. Could anyone link me to such info?

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These are more general and provide background info:

Information Property List Files

About Information Property List Files

These are specific to document types:

CFBundleDocumentTypes

Storing Document Types Information in the Application's Property List

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Apple provides an overview on the topic here. For a breakdown of available keys see here.

As an example:

<key>CFBundleDocumentTypes</key>
<array>
    <dict>
        <key>CFBundleTypeName</key>
        <string>typename</string>

        <key>CFBundleTypeExtensions</key>
        <array>
            <string>ext</string>
        </array>

        <key>CFBundleTypeIconFile</key>
        <string>icon.icns</string>

        <key>CFBundleTypeRole</key>
        <string>Viewer</string>

        <key>LSTypeIsPackage</key>
        <false />

        <key>NSPersistentStoreTypeKey</key>
        <string>Binary</string>
    </dict>
</array>