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https://issues.apache.org/jira/browse/CB-9162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14641563#comment-14641563
]
ASF GitHub Bot commented on CB-9162:
------------------------------------
Github user TimBarham commented on a diff in the pull request:
https://github.com/apache/cordova-lib/pull/247#discussion_r35482469
--- Diff:
cordova-lib/spec-plugman/plugins/org.test.defaultvariables/plugin.xml ---
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<plugin xmlns="http://cordova.apache.org/ns/plugins/1.0";
+ xmlns:android="http://schemas.android.com/apk/res/android";
+ id="org.test.defaultvariables"
+ version="3.0.0">
+
+ <name>Use Default Variables</name>
+
+ <!-- android -->
+ <platform name="android">
+ <preference name="ENABLE_LOG" default="yes" />
+ <preference name="API_KEY" />
+ </platform>
--- End diff --
If you are creating a plugin, and need to use variables because some values
will need to be defined by the app developer, you *use* the variable by
including a reference to it in values in your plugin's `plugin.xml`. The value
of the variable (whether the default value specified in the `preference`
element, or a value supplied by the app developer when the plugin is added to
their project) is substituted for references to the variable in values in
`plugin.xml` when those values are used. See
[here](https://cordova.apache.org/docs/en/5.1.1/plugin_ref_spec.md.html#variables)
for some more info.
> Plugin Variables should support a default value
> -----------------------------------------------
>
> Key: CB-9162
> URL: https://issues.apache.org/jira/browse/CB-9162
> Project: Apache Cordova
> Issue Type: Improvement
> Reporter: Olivier Goguel
>
> When declaring a variable, it is possible to make it mandatory (by using the
> <preference> tag), but there's no way to make it optional by defining a
> default value.
> For example: <preference value="ENABLE_LOG" default="true" />
> This would allow users to keep on customizing specific features of the
> plugins while not having to worry about all the variables.
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