Time for action – placing the preferences page

When the preference page is created, if it does not specify a location (known as a category in the plugin.xml file and manifest editor), it is inserted into the top level. This is appropriate for some kinds of project (for example, Mylyn, Java, and Plug-in Development); but many plug-ins should contribute into an existing location in the preference page tree.

  1. Preference pages can be nested by specifying the parent preference page's ID. To move the Clock preference page underneath the General preference page, specify org.eclipse.ui.preferencePages.Workbench as the category:
    <extension point="org.eclipse.ui.preferencePages"> <page name="Clock"id="com.packtpub.e4.clock.ui.preference.page"category="org.eclipse.ui.preferencePages.Workbench"class="com.packtpub.e4.clock.ui.ClockPreferencePage"/> ...

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