IntelliJ Plugin Development Tutorial - Hello World Plugin

This is a very simple example plugin for IntelliJ IDEA plugin development. You can create this plugin in less than 10 minuets.

This plugin creates a menu bar item called "Hello World". Under that there is an option called "Say Hello". When you click on that option you will see a message window.

Following are the two files you should work with.

	package com.lakj.comspace.intellij.helloworld;
	import com.intellij.openapi.actionSystem.AnAction;
	import com.intellij.openapi.actionSystem.AnActionEvent;
	import com.intellij.openapi.project.Project;
	import com.intellij.openapi.ui.Messages;
	/**
	* Created by Lak J Comspace on 12/20/2014.
	*/
	public class HelloWorldAction extends AnAction {
	/**
	* Implement this method to provide your action handler.
	*
	* @param e Carries information on the invocation place
	*/
	@Override
	public void actionPerformed(AnActionEvent e) {
	Project project = e.getProject();
	Messages.showMessageDialog(project, "Hello, Welcom to IntellJ IDEA plugin development.", "Welcome",
	Messages.getInformationIcon());
	}
	}

view raw HelloWorldAction.java hosted with ❤ by GitHub

	<idea-plugin version="2">
	<id>com.lakj.comspace.intellij.helloworld</id>
	<name>Lak J Comspace HelloWorld</name>
	<version>1.0</version>
	<vendor email="" url="http://lakjeewa.blogspot.com/">Lak J Comspace</vendor>
	<description><![CDATA[
	Enter short description for your plugin here.<br>
	<em>most HTML tags may be used</em>
	]]></description>
	<change-notes><![CDATA[
	Add change notes here.<br>
	<em>most HTML tags may be used</em>
	]]>
	</change-notes>
	<!-- please see http://confluence.jetbrains.com/display/IDEADEV/Build+Number+Ranges for description -->
	<idea-version since-build="131"/>
	<!-- please see http://confluence.jetbrains.com/display/IDEADEV/Plugin+Compatibility+with+IntelliJ+Platform+Products
	on how to target different products -->
	<!-- uncomment to enable plugin in all products
	<depends>com.intellij.modules.lang</depends>
	-->
	<extensions defaultExtensionNs="com.intellij">
	<!-- Add your extensions here -->
	</extensions>
	<application-components>
	<!-- Add your application components here -->
	</application-components>
	<project-components>
	<!-- Add your project components here -->
	</project-components>
	<actions>
	<group id="lakj.comspace" text="Hello _World" description="Hello World Menu">
	<action
	id="lakj.comspace.HelloWorldAction"
	class="com.lakj.comspace.intellij.helloworld.HelloWorldAction"
	text="_Say Hello"
	description="Say hello to you."
	icon="/resources/icon/icon.png"/>
	<add-to-group group-id="MainMenu" anchor="last"/>
	</group>
	</actions>
	</idea-plugin>

view raw plugin.xml hosted with ❤ by GitHub

When you click on the action item "Say Hello" the method called actionPerformed is executed and the message will be displayed.

Following are the GitHub URL's for complete plugin project. You can clone the project or downolad the project as a zip file. To run the project open IntelliJ IDEA and import the project.

GitHub repository URL - https://github.com/lakjcomspace/IntelliJHelloWorld
GitHub HTTPS clone URL - https://github.com/lakjcomspace/IntelliJHelloWorld.git
Download Project as a Zip - https://github.com/lakjcomspace/IntelliJHelloWorld/archive/master.zip