Java-JS hybrid development

Overview

• Hybrid development combines Java and JS in one project — JS calls Java methods
• After compilation, Java code and JARs become a defaultplugin.apk plugin
• This chapter focuses on EasyClick hybrid development

Create a Java-JS hybrid project

• In IDEA, create a project and select EasyClick Java-JS Hybrid Project; use JDK 1.8 (minor version does not matter)
• Click Next and finish — the corresponding Java classes and configuration are generated automatically
  

Directory structure

• src/js/main.js — test entry for JS calls into plugin methods
• src/com/ — Java source; PluginClz is the default plugin entry class
• libs/jarlibs — third-party JARs, merged into the plugin
• libs/solibs — native .so libraries, compiled into the plugin lib folder
• libs/resources — resource files, compiled into the plugin resources folder
• libs/jslibs — JS libraries for testing only; not compiled into the plugin

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• For JNI, put .so files in libs/solibs

Configure JDK and output class directory

• Right-click the project
  

Add android.jar

• Right-click android.jar and choose Add as Library
  

• Click OK
  
  
  

Default Java class PluginClz

• PluginClz is the default generated Java class
• test is the default generated method
• See main.js for how it is invoked

Using Java from main.js

• After Java compilation, the plugin is named defaultplugin.apk — call loadDex("defaultplugin.apk") when the script runs
• Load the plugin with the loadDex function
• Then use importClass or importPackage to import Java classes
• Instantiate with new and call methods

Run

• Use the menu EasyClick Dev Tools → Run Project (device must be connected)

Package

• Use EasyClick Dev Tools → Package Project; check the EasyClick run log for output