The repo to drive the Scala Meetup on Android
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Failed to load latest commit information.
project
src/main
.gitignore
README.md
build.sbt

README.md

Scala Meetup on Android

The repo to drive the Scala Meetup on Android.

To make this work you need to ...

  • install git, sbt (using macports or brew) and the Android SDK
  • you can then clone this repo and checkout the various tags/steps to walk through the tutorial

Step 0: Get something to compile

  • create an empty directory and in this directory create a directory called project
  • put the android.sbt file into this directory and run sbt "gen-android android-21 scala.meetup TutorialApp"
  • take a look at the files to understand what was generated
  • create an avd and start an emulator
  • run sbt android:run and you should see the MainActivity get started

Step 1: Turn it into a Scala app

  • delete project/build.scala and add a build.sbt file
  • you can then also delete project.properties (one file less to worry about)
  • delete src/androidTest and create src/main/scala and move src/main/java/.../MainActivity.java to src/main/scala/MainActivity.scala (and rename it to a scala file in the process) and delete src/main/java
  • edit MainActivity.scala and port it to Scala
  • add hello_text in src/main/res/values/strings.xml and reference it in src/main/res/layout/main.xml
  • (optional - if you want to use EMACS/ensime) put the ensime.sbt file into the project directory and run sbt gen-ensime
  • run sbt android:run again and you should see the MainActivity to display the changed hello world text

Step 2: Turn it into a Macroid app

  • add the macroid dependencies to the build.sbt file (and/or check the macroid-starter repo for the most current version of a/the build.sbt file)
  • edit AndroidManifest.xml to include min/targetSdkVersion
  • edit MainActivity.scala to show two buttons and the text (and edit strings.xml accordingly)
  • delete src/main/res/layout (this is not needed anymore)
  • run sbt android:run again and you should see the MainActivity to display two buttons. Try them ...