This project is a demonstration on how to wrap CUBA Platform's Polymer Client into the hybrid mobile application using Apache Cordova.

The video recording of the corresponding webinar is available here.

Android SDK and Node.js should be installed on your machine.

./gradlew buildCordova

• Create Polymer client using CUBA Studio
• Install cordova cli

npm install -g cordova

• Create Cordova App using cordova create command:

cd <project dir>/modules/polymer-client/
cordova create cordova com.example.demo Demo

Cordova cli will generate required directory structure in the cordova directory. Skeletal web application will be generated in the www sub-directory. In our approach we will replace it by assembled Polymer client in a build time.

• Clear www directory

rm -rf cordova/www/*

• Add www directory to .gitignore:

echo www/* > cordova/.gitignore

• Add Android Platform to our Cordova project:

cd cordova
cordova platform add android

• Add new build config to polymer.json:

  "builds": [
    ...
    {
      "name": "cordova",
      "preset": "es5-bundled",
      "addServiceWorker": false
    }
    ...
  ]

• Remove <base> tag from index.html. For other build targets it will be added by polymer tooling automatically according to the basePath config option.

• Add Cordova cli as a devDependency in polymer-client/package.json:

...
  "devDependencies": {
    ...
    "cordova": "^7.1.0"
  }
...

• Now it's time to tweak polymerClientModule in our main build.gradle:

The following task installs cordova tooling:

task installCordovaPackages(type: NpmTask) {
    args = ['install']
    execOverrides {
        it.workingDir = 'cordova'
    }
}

The following tasks copies assembled Polymer client into the cordova/www folder:

task prepareCordova(type: Copy, dependsOn: [assemble]) {
    from file('build/cordova')
    into "cordova/www"
}

The following task runs cordova cli in order to build mobile app:

task buildCordova(type: NodeTask, dependsOn: [prepareCordova, installCordovaPackages]) {
    script = file('node_modules/cordova/bin/cordova')
    args = ['build']
    workingDir 'cordova'
}

Now you should be able to build mobile app using gradle:

./gradlew buildCordova