ruboto

Open source

A platform for developing apps using JRuby on Android.

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About

A platform for developing apps using JRuby on Android.

Ruboto 2

Ruboto 2 is a redesign based on an Android Studio workflow. This means that the JRuby and Ruboto components will integrate into the standard gradle tooling used by regular Android Studio projects.

Starting a new Ruboto project

Download and install Android studio.
Choose "Create New Project" in the startup screen.
- Choose "Phone and Tablet" and "No Activity" for the project template.
- Choose "Java" for your language and "Minimum SDK" should be "API 27: Android 8.1 (Oreo)" or higher.
Add a jcenter to the dependencyResolutionManagement/repositories section of your settings.gradle file:
groovy
```
dependencyResolutionManagement {
    ...
    repositories {
        ...
        jcenter()
    }
}
```

Add the these dependencies to your app/build.gradle file:

groovy

dependencies {
  ...
  implementation fileTree(dir: 'libs', include: ['*.jar'])
  implementation 'com.linkedin.dexmaker:dexmaker:2.19.1'
  implementation 'me.qmx.jitescript:jitescript:0.4.1'
  implementation 'com.jakewharton.android.repackaged:dalvik-dx:7.1.0_r7'
}

Add gems.rb file:

ruby

source 'https://rubygems.org/'

gem 'ruboto', '~>2.0.dev', git: 'https://github.com/ruboto/ruboto.git'

Ensure you are using JRuby on the command line

Create a .ruby-version file:
```
  jruby
```
Initialize Ruboto:
bash
```
jruby -S bundle
jruby -S bundle exec ruboto init
```
This will copy the core files to your project.

Add app/gems.rb

ruby

source 'https://rubygems.org/'

gem 'activerecord', '~>7.0'
gem 'activerecord-jdbc-adapter', '~>70.1'
gem 'sqldroid', '~>1.0'

Add app/update_jruby_jar.sh:

…

Make app/update_jruby_jar.sh executable:
bash
```
  chmod u+x app/update_jruby_jar.sh
```
Generate jruby.jar:
bash
```
  app/update_jruby_jar.sh
```

Generate the startup activity:

bash

  bundle exec ruboto gen class Activity --name StartupActivity

Add the startup activity intent filter to the new activity tag in app/src/main/AndroidManifest.xml:

xml

<activity android:name='StartupActivity' android:exported="true">
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
        <action android:name="android.intent.action.VIEW" />
    </intent-filter>
</activity>

Declare the Ruboto components and SplashActivity in app/src/main/AndroidManifest.xml

xml

<activity android:name='org.ruboto.RubotoActivity' />
<activity android:name='org.ruboto.RubotoDialog' android:theme='@android:style/Theme.Dialog' />
<service
    android:name='org.ruboto.RubotoService'
    android:exported='false' />
<activity
    android:name='org.ruboto.SplashActivity'
    android:configChanges='orientation|screenSize'
    android:exported='false'
    android:noHistory='true' />