How to create an Extension Kodular Android App

Hello,

I this Tutorial I am going to teach you how to create Extensions for AppInventor and Kodular.

---

Tools you will need:

• Java JDK
• Apache Ant
• Git Bash
• AppInventor Sources
• Java Code Editor (Notepad++ 18, jEdit 13, EditPlus 5, etc)

Step 1: Download and Install Java JDK

Click to Download 72

• Install Java JDK
• Set the Environmental Variables:
• Set “JAVA_HOME” to your install Java install path. Example: “C:/Java/jdk1.8.0_31”
• Edit “PATH” and add those:
  %JAVA_HOME%/bin
%JAVA_HOME%/jre/bin
• Set “CLASSPATH” to “%JAVA_HOME%/lib/dt.jar;%JAVA_HOME%/lib/tools.jar”

Step 2: Download and Install Apache Ant

Click to Download 53

• Download Apache Ant 1.10.1
• Unzip the folder and move it to a place where it is safe
• Set the Environmental Variables:
• Set “ANT_HOME” to the Folder where ant is. Example: “C:/Ant/apache-ant-1.10.1”
• Edit “Path” and add “Folder where ant is+ \bin”. Example: “C:/Ant/apache-ant-1.10.1\bin”
• Edit “ClassPath” and add “Folder where ant is+ \lib”. Example: “C:/Ant/apache-ant-1.10.1\lib”

Step 3: Download and Install Git Bash

Click to Download 39

• Download and Install Git Bash

Step 4: Download AppInventor Sources

Click to Download 88

• Download appinventor-sources
• Unzip the folder and move it to a place where it is safe

Step 5: Testing if it works

• Go to your appinventor-sources folder and open the appinventor folder
• Right click in the folder and select “Git Bash Here”
• Type “ant” and click on enter

If says: “BUILD SUCCESSFUL”, then you can go to Step 6
If says: “BUILD FAILED”, then you did something wrong or missed a step

Step 6: Building an Extension

SimpleExtension.java 12 (2.8 KB)

• Download the file and move it to “appinventor-sources/appinventor/components/src/com/sanderjochems/”
  Note: If you want a other package name, then you need to put the SimpleExtensions.java in a other folder and update the package name in the file
• Go back to the “appinventor” folder
• Right click in the folder and select “Git Bash Here”
• Type “ant extensions” and click on enter

If says: “BUILD SUCCESSFUL”, then you can create Extensions
If says: “BUILD FAILED”, then you did something wrong